diff --git a/2022/day21/input b/2022/day21/input
new file mode 100644
index 0000000..e59658c
--- /dev/null
+++ b/2022/day21/input
@@ -0,0 +1,2643 @@
+nfpr: 3
+mhnp: 2
+lhzg: vgvf * hnfq
+wwnq: hcvc + clwj
+bzvl: 2
+rtbr: fdqt + nwlj
+dgzz: lhnr + fwwm
+nwnj: 4
+hwqb: wcfm * fcrt
+vbdj: 13
+glcj: 3
+mfbw: 2
+wwfg: djwb * lfdc
+pfgc: qscf + wvps
+hmfb: wmvs * sqmf
+smcp: 2
+gbpj: 9
+ncrg: lnfb * vtnc
+lhcf: slrl + hzwm
+pvtg: mprn + hvtr
+vpdc: vcql * pwhq
+tqrl: 4
+mpdf: 5
+zjmz: qssp + mmqq
+ftqz: 2
+fsdf: gdnh + cwwn
+pjrd: 5
+sglv: 11
+bvws: 5
+wcfm: 2
+hbbd: 2
+btgq: fwpm + jgph
+fsdd: 3
+tzgp: wjgz - rfdf
+dvzl: csdd + cfcz
+rqbq: 2
+jhrl: zfvc * rzvq
+wpms: zhcw * qwll
+vrbz: zbwz * cszq
+fcgz: cqht + vhtf
+sthr: thqf + zcjv
+lqzt: 3
+wwcz: hlln * mgmp
+smcs: 2
+trmw: jgzj / qvzq
+tmpq: 5
+dmhl: vrhg - nzmj
+zsww: 2
+rlfh: 5
+rgtn: 5
+bhws: lntz + bvcz
+rfwq: zrmn * fwlf
+djzp: 4
+dgtr: 20
+bmds: bdmb * wdvv
+mjlq: 14
+bfdr: slwq * gjsz
+vrgp: 14
+mmpg: nlff / tlzs
+dphq: ngcc + whhr
+jvwg: fczm * qspw
+nnlc: qgsh * jrrh
+zljq: 7
+hqpf: rznw * pdnq
+dczq: 2
+tsvw: 4
+pnss: 2
+cwhv: fjnl + qhlv
+fwrq: 2
+zmsn: gqnm * mnqm
+rfsv: mpdf * sqgt
+wncg: 5
+lcbg: 12
+wddt: 6
+bcsr: mtqb + bqgf
+hggp: 3
+fmrg: qldl * pqsb
+ctfn: 4
+nhth: wppc + ppgd
+whfn: vhvn + fvzg
+tmvj: szzb * qnjw
+fvpr: fssn / qddm
+wfjh: 2
+dcbm: 1
+bcrw: 5
+svtd: rtfh + dbrp
+jcjm: 8
+fmss: ztst * zjtd
+ppgz: 3
+wmqt: 2
+lhmt: vvzs * bzfv
+gnnf: 5
+hnjf: jwjv * jpbp
+twbv: qpww / jpqp
+rszt: 6
+vqrc: 3
+qnjw: 2
+svlw: tnzj - hdql
+lbgv: 2
+tfcl: 7
+sfvp: mgcq * mjcq
+wqnw: hmhn + njmc
+fvnz: wdgg + vvpw
+rnls: 14
+bvcm: 1
+jmrs: hfls + rldh
+fmsl: cwrq * mnlr
+llzd: jrrf + rzsb
+mzsg: mjlq + pfsr
+wbgz: glhd + hddc
+drzc: 20
+lvzr: 15
+zfdt: 2
+mdww: ltvp * fvld
+tdff: crwh + cppn
+lsdm: 3
+pdsl: 10
+bdtv: 9
+sclb: 2
+llzm: mmmw + wfzm
+lqnw: wqwl * ssft
+qzrc: vbbp * qpzm
+dsmg: 6
+hvts: 6
+rqlq: 15
+tvmj: ppnm + rnjm
+mztc: mczb * gphh
+gvww: 11
+zthb: 4
+svsp: 7
+dcgb: 2
+dbfj: 8
+bdqv: chqt + vhsg
+rczc: 11
+hsgt: 2
+dsfp: 2
+pbrl: rlhg * cgmn
+rllv: hmpl + psbb
+hjjd: mlnr + mmfz
+gphh: 5
+wpsl: lnbh / lsgz
+bdcr: 2
+jrwg: 3
+nhss: 10
+dznz: gvdd + jzss
+hbbs: 2
+gfcg: 2
+tqvc: 11
+jbnw: 6
+tvpz: 2
+nhsn: qgzw / bljg
+hshc: 3
+dhdq: mhpq * qvhp
+tnzj: vthb * hbnt
+rvzd: 1
+vhpp: hblp * clws
+cjfc: stfd - sgcw
+ftgw: bbrt * flsh
+mdjq: 5
+jgmq: 5
+srdb: vsvb * rjcg
+nhvn: 4
+tsnm: cvzt * fjpl
+qgsh: nfrp + ctjg
+fmwr: cbnr * fpwm
+grbv: 5
+nhqc: 14
+nrpq: 11
+crmh: qbqd - jqql
+vqpl: hqsf * ntlp
+ctbh: 9
+prjm: 3
+rtzd: 2
+jznz: tjls + pgcq
+dqnh: 2
+sfrc: twjv * bblj
+njfq: qhfj - lvpl
+nfzm: vlvg - brmz
+dvwv: rfsv - clcl
+wjwl: 2
+ggjh: 3
+jlcj: tcbz - crjq
+rlhg: 3
+bnzz: 3
+sgvc: 2
+gjtl: zwnl - vjfd
+rnjm: dqps * vdlz
+fwwm: 4
+hpct: 2
+hbbb: mrjw - fggh
+pnjg: rpgs + qpns
+mnqm: 4
+hvpt: 1
+znld: mnwq * ctnp
+csgj: 5
+cwff: 2
+rzfp: wbqm * mflz
+vlvg: jltj + tgmh
+gshc: 3
+fjqv: 3
+trnf: cbhv * fjqv
+bljg: 2
+srgr: dznz + ntnr
+fssn: rjfs + mzbb
+sdfd: 2
+tnrt: vpdc + vsqz
+jtjj: gtls * tcbp
+cmvw: 2
+cqht: jrdb + gwqq
+brct: 5
+rqjj: zllt * rvwc
+jvzn: qncv * jftn
+hszt: ldmb + sncl
+wcpw: 2
+mlld: 1
+tfwz: gdmq / qcrp
+hrfq: 11
+mlnr: vjjh * wftp
+rzvt: 16
+ccht: 2
+wsrh: rzvt * thbq
+nfrv: 4
+hwzq: ldps + fvhc
+flsg: 2
+flzc: jpsv + tcgs
+qjdw: 2
+zhjs: 3
+wtjm: vtgj + jdzv
+qtzl: 12
+ltgp: 3
+tmst: 2
+vctd: rqbq * hmtb
+btzj: 2
+qbcp: 2
+bbcm: vjhz * mhps
+qhfj: pfdj + mdrm
+bzjj: dbnq * tvmq
+mjvq: bqzm * mhrp
+wrdz: vqlc + rqtj
+gvnr: 4
+nchp: 13
+fwpm: vmjg - rbnb
+dzpb: dsmz * zhnb
+bmfv: hzcn + csgj
+qbzh: 20
+tzhq: 3
+fcrt: fsdd * sgtb
+trdv: smpc - vwrc
+hmnj: 20
+cdhn: lccv * qcpp
+zwhl: wzmh + fdtg
+sgcf: qfsn + wbps
+vpdd: hqdt + pnhl
+bbdd: rjbv * pmrz
+rjpc: 3
+bfdj: zfwf + nfnf
+gjbq: 2
+jhst: 5
+qdcn: 3
+jljn: 2
+pglr: hcsm / wncg
+tthz: 3
+rvwc: 2
+ctjg: 5
+ppjr: 7
+gmpb: 9
+rspn: 5
+vqhh: pqjw + lpnj
+vljn: pzpn + hvts
+bdmb: scqr - hqpv
+wfsl: qpdp + zzmg
+cnpn: slpb * ggqm
+sczh: 3
+dqss: czgd + ppsj
+pfpc: wdnm * grgl
+rnzm: 5
+tbch: gcjw + dczj
+zmwd: 14
+ftph: nzzt + fnld
+vwss: 4
+hlvz: glwd - rzms
+psps: lvcl * gwfw
+cdjd: hvjv + djhh
+nqsf: 2
+ngmc: 7
+sllg: 2
+lrpq: cjwd * ffms
+hlmj: rnmc + bjvz
+vfbl: 5
+chwr: qjml * pldf
+btwf: svnh * glmg
+bmdp: 7
+sqrf: 7
+jznp: 5
+gnbn: 7
+zlcq: smjc * crlr
+lvpl: nvqf * bdqh
+bsts: pscb + zzhj
+hszv: bhph * tvpf
+vcsm: rhnq * rfvf
+lfdc: zlps * jpmf
+rjgb: qwlf + jdhv
+fddj: pdtv * shgn
+bvzm: rbmv * sbvv
+dtzc: nwfq + nrpq
+cmqs: bvzm / fvws
+mtqb: smzd * bsdw
+lgwp: 2
+shgj: jhgf * zcth
+swzq: 5
+rdtm: rqqs - wdss
+rtqj: 2
+cwqh: 1
+fmhd: hmhh + mrdd
+czwr: vdjr + gnjl
+wdnm: 4
+cbmr: mvld * sfsz
+ndzq: 5
+ssft: twdv + cnqg
+qprn: 2
+mqpw: 2
+fpjd: 3
+grhd: 2
+nrrw: 2
+dzwb: 4
+zhfb: wmsh * pglr
+cltn: 3
+hcqq: brgz - nwqz
+bnwn: 16
+phst: 2
+gvhz: 3
+ghzb: smwj * rlgp
+plbm: pljz + wqzz
+cszq: rsbn + tlvd
+jpbp: cwwh + nvhl
+nsmc: 3
+cmtg: bmfv * shjm
+qrmt: zrvw + bbcm
+nlsh: nwwh + tsrb
+qwgt: mdcw + fvmv
+bbbr: 3
+vdwd: 3
+hmmt: nzsl - gbpj
+tvtl: hnlg - tfjv
+qbqd: dhpj / wfrs
+fggh: mbpm * rjtp
+cjns: wlbh - mjtq
+wtmf: rtdl * mmwf
+nwwh: gnvm + crlq
+cqvm: zqwb * wmjj
+lrvz: ttqc + bdmc
+bbrp: 4
+dfhb: 2
+nzmg: bsrm * qhwf
+lgdg: 3
+rbmw: tfcl * pwlm
+pdmt: hgrb * jvzn
+gnpg: 5
+dbhn: 9
+wdvv: qvvq * ctvj
+gnjl: bdvs / qqgl
+szhm: crnh + jmpv
+zwmv: hgfz + mghg
+cnsf: 10
+dbnw: 3
+cpth: lgrc * hwzd
+ftjv: ltlv + qzpj
+shnl: 2
+smmv: dvjp * bnzz
+lrzq: 2
+wffl: 2
+zwgd: lhzg / jzwp
+qhnn: gcgj * scnf
+mdqb: 1
+wwzh: 2
+slnn: 11
+qqms: vdrc * hczr
+jzcf: 4
+wfrs: 2
+vgcm: 2
+qrwj: 4
+bwsz: 5
+mrqn: 2
+zhww: 8
+crnh: 20
+wcnr: dgqm + jnwd
+nmsg: 5
+fffw: wtmf + fvml
+jbjw: 2
+zjlc: rrmg / dzdc
+lnbh: qlwj - jtvr
+dbrp: jhfh + nqsj
+vrhg: pvsv * vwfj
+tnqd: 13
+ggwv: 2
+mmrb: hrpr + rfcp
+wgqw: 2
+qnzm: 3
+njsv: 4
+fjsf: qcsn + mjml
+dfpz: 2
+hnrh: 3
+fjsz: tsvw * bvmz
+tvzz: nwsv + znpt
+dmwl: 19
+rlqz: fgjb * zpvw
+hqsq: njsv * cwff
+zbdg: 2
+mrdd: vbcp + srfw
+dwvm: bbdd + nnpg
+grhg: 2
+qtqf: twgn + cbtm
+drst: jwwn * rwhd
+bnbw: 7
+zbfp: dzpb * dqss
+pndj: 1
+jrdb: 16
+ffws: lrnq * qvbs
+jmhp: 2
+rqpl: 11
+pjdn: 6
+brjh: prrc + ldlt
+ttrt: 4
+ctrv: 2
+jdzv: 6
+pbpg: 2
+jtsc: gpjc / nrcz
+glwd: 18
+tstt: zbzs * zzlb
+gdqb: nqnv * qnpg
+vlnc: msfz + pgvw
+znpt: vnwb * jtdr
+jhwc: 4
+qhlv: lrhh * ntdb
+lctr: 3
+tswc: 3
+gtgp: sjgz * dbsj
+zwnl: qvjp + jhpn
+lgpt: jtdg - mbvj
+tcbp: 2
+bjwf: fvwf - hjjd
+cvzn: 3
+pqqd: ljbw + jsdl
+gdnh: jvqq - spjj
+whnr: 13
+qddm: 3
+qpwq: dvfn / gwhz
+szfr: 5
+cbfz: dszf + nfmc
+pmdb: bsvj * mqqg
+dznt: pfcl * tcts
+lgsg: qvhh * dtcn
+mdzp: 3
+fcjv: 6
+bdlp: jjjm + hpzz
+zhrs: hvnj * bmjr
+ngnz: 2
+clpj: wcdg - srml
+npjm: 3
+vfnt: cpth + cwbb
+ldll: bmnh / zhrf
+dvst: lqzt * rfjz
+tblh: 20
+vpvs: nhqc + btgv
+dtqb: 5
+djdt: fzpz * vhbz
+hpcf: 17
+zfvc: 9
+glmv: pbrl + hqwr
+crfq: 3
+jzrl: 3
+ndzf: pldm + qvfg
+twml: 10
+hbzb: 3
+llwt: mwst + gtgp
+brnm: 3
+hzbg: fvbf * sfbf
+cflr: 7
+jgzj: ztjq * sznf
+gjmn: qdcn * gbpm
+zjpq: 2
+vntg: 2
+zhnb: 5
+zvzb: 4
+qggg: 1
+ghdm: 2
+gwlf: 4
+tqhb: mgjb + mwnm
+lmwv: sqjm / ppgz
+tbnn: 14
+gbcw: hrwd * vcqz
+dzzl: wltr * vljn
+mqqg: rbvv + dvzl
+pbdp: rpcp + nlsh
+wcst: 3
+qfcn: 2
+vdtd: qfrh * rqlq
+bhnm: 2
+vqlc: fvpr * wfnt
+rshw: cnfd * vwfv
+gdbn: nlbv - shnt
+gzpt: jqgn + swzj
+qfqb: 4
+srvg: fvjc + rzdl
+qzpd: bnfs * zpvm
+mfrv: 2
+bpfp: 2
+msgw: 2
+jqql: rhwf * gmbl
+mmcp: 2
+rjbv: fcdn * vplt
+pgsc: gdjm / sntl
+wzbr: 2
+jrpl: 3
+tscf: 2
+wtqz: zhbf * twgp
+nnrt: vfhp / gnbn
+cssz: vqhh + bmds
+gmdz: hphs + rnvf
+pwhg: hbbd * qqll
+zznw: 2
+slpb: 2
+clwj: 3
+hdbf: mmzp / sbfm
+tdnq: 3
+bwnp: whwz * mfjg
+jpwt: wsll * ltwt
+mvld: 4
+crjq: 2
+qhwf: lgjp + pjdd
+nrcz: 2
+wggr: 3
+lmlc: rfwq + nfrv
+hwmz: 13
+snhg: nbzn * mlsq
+twzt: 2
+bhvm: rcpd + ncrg
+zqbz: 8
+lbvl: 7
+nqfq: sdcq - tnpn
+dcrf: 5
+rbmv: phzm / vlgs
+svfg: 3
+ttrs: chnw * wghb
+qfjr: 15
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+zmwq: 6
+hcvc: 4
+gpvt: rnls + twwc
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+hsll: znfl + hwzq
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+vvcf: 3
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+wjsq: 3
+zjtf: 2
+qfbn: ddrp * qhdc
+mbcw: 5
+ztds: jmwv * gvmg
+pmtz: gtqt + nfzm
+ztst: ndzq + ndds
+zztr: 7
+znbq: 1
+bsbh: cjns / cvpv
+lrmh: shwb * grhg
+ljwm: 5
+fmht: rwgb * sdfd
+dzdc: 2
+ctzn: jglt * jlnt
+dnsd: zzld / flsg
+dmlh: drbc * lsdm
+qbbw: 18
+vsqz: dflr * tblh
+ftss: 5
+gntf: dnmm * wvss
+hrlp: 2
+qgpm: 2
+hqwr: hhmn * cwvr
+bhhj: 2
+vmss: 6
+sqmf: 3
+pscb: cjfc * sjbq
+wvps: zjsb + jbnw
+fsfs: bmsr + nltq
+gvhf: 7
+fnbg: 5
+pjwn: 4
+nwpp: 2
+mdnv: ghpn + jpnn
+rwhd: rnzp * whbg
+twjm: fghf + btjt
+tvtg: 18
+vplt: 4
+cflt: wtzs * vvzb
+hqcr: pczl * nnjh
+tdsq: nwrd + dtzc
+zsms: 3
+vjpt: 15
+cmgw: 2
+hmhn: 16
+jvqq: qzhj - wwwf
+fvzg: strg + jpnr
+wmvs: hzvv - fbmp
+pgrs: 4
+bbrn: cnpn * htrc
+jsnc: phld / gvhz
+wftp: 8
+mmfz: 20
+zzmg: 6
+scnf: mfrv * mlbh
+bdqh: 3
+jtdr: ttrs / fdzp
+pwnn: 10
+qpns: bjwf - mhvw
+nqhg: bszp * qmmn
+tlzs: 3
+bslr: vzlb - wwmm
+fpsb: swdm / brvg
+znll: 2
+tjjc: tdff + zjmz
+fdlt: 8
+nvhl: 5
+rzsb: ggzt - dwmq
+crpm: dcjz + tfgm
+svvz: 4
+qznn: tgrj + lsnr
+nvpl: nhvw * fvqc
+tqls: 7
+czvp: 4
+zqnt: 11
+jshd: 2
+vtzp: 2
+jpjf: 3
+sgcw: qszs + qtzs
+cwnc: llzm + strj
+wqhv: mdmw + prjv
+jbwg: 18
+mmzp: whcg * ttth
+vwpn: 2
+qzmj: 3
+ncgf: thcl + prwj
+blgr: 3
+mncv: bwwh + bhrg
+slwq: 2
+pfzz: fvcg * djzp
+mjch: vlms / dlqg
+mghg: gmmn * jhfq
+fvwf: qqcs * dwmd
+jltj: gctw - hfsj
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+wbzc: mbhj * qlmw
+hgqf: 4
+qcpp: 2
+tngh: tpjl * dnhb
+bhrg: 6
+bwdg: 5
+pwbl: wlzt / snvz
+dpgz: 2
+sbsb: 2
+rgrf: wbrl * tjmq
+hmhh: mzsg * cmvw
+lwmw: nchj + zvrv
+vssp: czjl * qrqt
+flpm: 2
+dfqr: nrpj * lchz
+rnnh: hqsq + tsrt
+thvd: qdtq + gcdj
+pcpq: znfq + rjqj
+zmsr: sgbp + nnrt
+dvjp: 3
+dhpj: ndzf + jhjz
+hpzl: 3
+csdd: wpcs * tmvw
+mbmd: 4
+cbnr: 5
+cfzl: 4
+cjwd: jpvc / bhnm
+fvdd: hbdz + fptg
+hjnv: vwhz / gsjp
+glmg: 4
+ljbw: shsb + lhvd
+thcl: gvsp + shrc
+zbtt: qfrl + prgw
+dbch: 2
+chnw: 3
+gshw: 3
+vhff: wsdc * jwsn
+hrpb: 5
+vdrc: bfdj + nzql
+rnmc: dztm * wjsq
+rpgs: dnrv + djvb
+tstm: 5
+jngt: 2
+tltg: pdsl - vprd
+fmpw: 3
+qqll: 3
+pgvw: 4
+zspd: tcms + wjqg
+bsdf: gwsw + hfcm
+jvgg: dhdq * tpqf
+ttsv: gwws * sllg
+bpfb: tzhq * wtqz
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+sdqn: ndmp - dzlh
+lpnj: hzns + ljcc
+qscf: 2
+twwc: qfcn + btpj
+vprm: 2
+cstf: 3
+cpnn: 16
+prjv: 6
+fhtq: jhwc + hwdc
+jqgd: dfpz * zbzn
+qmtw: dsqh - cfdg
+mmwf: 3
+ptzv: 3
+gwtf: mhnp * zlvb
+dwmq: bbrn * cbtq
+twgn: gwbm * csjj
+wmhp: 3
+dglq: qvjl * pnss
+clvq: 2
+nqhc: 2
+ngcc: svsp * cfzd
+pgwh: ltgp * wzdn
+mmjj: lswr * lnfd
+jrdz: 2
+jgzn: 5
+vgwp: 14
+wdzn: 14
+rjqj: trtn - ddcr
+lnfb: 3
+phwt: 6
+fvrt: 2
+pbnl: cltn * plsg
+vvzs: 2
+fbdr: szhm * jnth
+rsrm: 3
+fnnn: 1
+jrzg: 7
+tfct: 3
+wrrn: 17
+zbcd: wtlj + tjrd
+pmhg: 3
+trrw: 3
+flsh: 3
+tchj: dhjs * mzsr
+fvqn: lcwf * ghtz
+jjfl: tvtg / tlvj
+dzrp: 3
+dqpt: 3
+fsvt: 2
+lzlv: 3
+bngh: drst + bvsq
+jwpq: lmcb * blnh
+lvcl: 11
+qzss: pmtz * pdmt
+pfqb: 5
+qqgl: 5
+vnjr: 2
+phld: rtwh * vdwd
+qvjl: 3
+dqph: 4
+zzcv: 2
+whph: fztz / wffl
+psbb: 15
+vhdj: cddq * dcrf
+mflz: 3
+dztm: dgfd + pwnn
+jtvr: 4
+lgcb: hllz * dbfj
+ndmp: ctbh + jbqh
+gjzm: 14
+fvqc: 6
+nlnt: twbv * tngh
+cfdg: 5
+mcvg: jllb / zjvc
+lhww: 2
+vhtf: 8
+vnqz: bzjd / qfsc
+qmmn: 20
+qfpz: chvg / clvq
+qqqd: 19
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+lcwf: zwmj * djnj
+cddq: 5
+jldf: hmzt + rjdq
+cpfv: 18
+jwzl: brqv * dbnw
+mshv: 19
+ttqc: rcbf * vbnz
+hhjd: 2
+jwvv: dbmn + rtbr
+rfdf: 3
+zrrn: 9
+jzlt: 1
+tcts: 5
+rlpr: 6
+srml: mzmw + tvwc
+cfjv: sjbj + dvst
+nzmj: lpmr + jppg
+trtn: rdbq * mqpq
+zlps: vmss + tngz
+ppqb: frlh + gvwb
+slrl: 14
+cdhm: qgjc * nqhg
+hfls: 4
+htzh: 14
+pjdd: 8
+jtdg: nfvj * ddcv
+jwqd: 2
+lbdn: 4
+zlsj: 4
+jblw: tndh + dsfp
+bnnm: 4
+mjcq: 5
+fvwn: 17
+msfz: 13
+vrhc: 3
+mfcn: cnpj * shbj
+mdmw: 2
+jhjz: pmjn + ppzn
+rqqs: rdbd * rjpc
+ffms: 4
+cppn: grvz - fvqq
+thwd: 5
+hnnl: 4
+bwwh: smmv * gshc
+wqgs: 5
+csrp: 5
+qhhf: nfpr * phwz
+mqlz: hrvs + ghht
+fcdn: 3
+hgfz: prsj + nwmq
+glnb: jssv / prjm
+ltlm: mpmq * nvjg
+rlpz: jtcz - wrlb
+wgst: 9
+ldnw: tltg + mhqb
+hnfq: 2
+scsc: rnnh * jftv
+tdwg: jjfl * dmnf
+cvjb: djps + bqpb
+slwg: nlml * wbgz
+cdlc: 11
+mlrb: 3
+rlqb: 2
+gcjw: 6
+qwll: 7
+lccv: 5
+ntlp: jvjb * fvwn
+swfb: jshd + zljq
+rdbg: 5
+szwn: 6
+fvld: hvsl + jsfz
+pldf: ggwl + lcsh
+hgqn: 18
+slbz: mqdq / jrtr
+ggfs: jzvc + rzlz
+ttrv: lrsl + gntf
+wbps: mqlc * dwvm
+djln: chbl * vjcg
+jrvg: 2
+ltlv: 1
+twjv: dqph * fmhd
+pdqv: 2
+nfvj: 4
+lqzz: 11
+dncn: 2
+bqgf: vhtm + hpcf
+wfnt: 5
+wdmq: 2
+wbmh: svfg + ltzn
+lwmv: 2
+ddtg: dlzh / nbzv
+cwwh: 2
+hdsf: pfpc * fbfr
+rznw: fspn + pwhg
+bwhd: wfgq / pmtj
+zllt: nqhc * jlrq
+qggs: vrbz + lrpq
+slhl: 10
+htnf: jgnq + tnmq
+zrqr: hqcr * nqfq
+dpfm: nszt * cvzz
+lqqv: 4
+wqtm: 15
+tfcn: dlbc * gfcg
+dgfd: 7
+tqbq: 3
+qzpg: 2
+dzsp: 5
+czmc: gzmj + jtmr
+hrgt: vvvv * jqmp
+cwmb: ncwh + zvdt
+hhnd: 13
+scsr: vnmv + qnzm
+czjh: 8
+lltn: mdfp * zbcd
+qlzj: tmtw + gdjv
+dwsv: ztds / bhhj
+sjtb: nzvt / jbjw
+fwbj: 13
+hgmq: zwhh + bwnp
+lmpn: vctd - mwrw
+cnlg: tbwz + znmj
+mvwl: snhg * dfdc
+lgrc: 17
+qpzm: lfqh + vcsm
+nzzt: fddj / gwlf
+dzpd: 10
+pvgb: 18
+zgjq: 2
+dqqp: 5
+qvdr: clnl * svrm
+fzfb: 2
+jpmf: 2
+gwws: 4
+nvqf: 2
+qlwj: nchp * jljn
+crgm: 2
+fqlf: 15
+vthb: qqvm / zbmz
+mjvd: 7
+sjzd: sjnt + pjmt
+trzs: 7
+pwvq: tthn + lnrs
+jtsm: 3
+ztvn: 4
+btjt: jqhf * nlht
+jnth: 2
+vdlz: cnlg + htvv
+jcps: 3
+hgjw: 5
+frgf: 2
+bqzm: ngmc * sbsb
+dhst: ljhh + cmwc
+nbzn: 5
+qbqw: dnft * jzgn
+wdss: 9
+smpc: qgsj - hwdg
+jcvd: ctgw * rnhl
+hdgg: 3
+gzjd: 5
+cwrq: nhns + lszv
+fdtg: bhqt * zrhz
+fphj: zqpr + fvzm
+zcjv: 7
+wfwm: 2
+hnlb: 2
+tpjl: 3
+nfrp: 6
+pfdj: pwwq - bnnm
+lpgv: 2
+gvmg: 2
+frlh: qfbn + lqnw
+vtjd: 5
+jhzl: zznw * ffrj
+lsps: lgcb + gpbj
+gvhs: ftlq * sgbl
+qqvm: tvpz * bsmg
+ghpn: 1
+fvhc: 15
+hjzj: ltfn + nwnj
+bjbn: 1
+wrsj: 3
+jhfq: 18
+dvqw: wpsl * qcbj
+gsjp: 2
+splh: 2
+ttcz: fmcq * gjtl
+nlff: vssp * djhv
+wrcb: 3
+ntnr: cvzb / lzlv
+bzdh: 2
+fvcg: 3
+tndh: hlbh * ngtq
+vhbz: dmvt * vwvt
+rwgb: vmrz + cjwr
+zvrv: jgmq * fmcm
+zzld: pqls - zgcc
+mpzw: 13
+lhjh: bclm * hpct
+qbnz: bnwn + qqms
+zcjg: svzg / rgjv
+mjtq: frgf + hwmz
+htcn: 4
+jzmv: hczq / thtd
+slsw: 3
+qppn: dfbn * lsfl
+jnqm: 17
+lhsj: czvp * pfgc
+jsfz: 1
+qnqt: zzgp + wrcb
+zzlb: 3
+rpcp: htzc + lchd
+hhrh: 13
+rbvv: fffw / hvdn
+fjbm: 4
+pbvv: bqvn + wprd
+rlgp: 7
+jvjb: 2
+ggfw: 5
+jgdp: 3
+strj: hllw * jbqq
+vfvl: 4
+qzqg: 13
+zpnz: shrv * qzds
+mljz: svnj + rlpr
+lrsl: lzhd + vvgr
+nqwc: rcrt * jhst
+gsbh: ggjh * vnjr
+mlqn: bphw + rvzd
+cjwr: cmpb + cwnc
+clnl: 5
+pldm: cmdr * ttvw
+tfht: ttgl * hlzh
+wzmh: cdlc + nlcp
+hlhp: 1
+bdtn: 2
+zwmj: 3
+tgrb: hzvq * drmd
+vfhp: wsjv * bgft
+nzjr: bvqz + hshj
+jllb: jwpq + mljz
+gflv: srdb + wsrh
+mhqb: pjqb * fmpw
+tfcv: gtvt * tfnd
+vjhb: 7
+wprd: zcjg + vgwp
+fqmt: pzfv * pdqb
+zpcr: 3
+hvgm: 17
+bwqc: 5
+qsbv: qfpz + vbrn
+crwh: 1
+lfcj: bwhl * hmrv
+qpdp: vvgf + qhhf
+prrc: ctzn / qgpm
+tjmn: 5
+jssv: qlgh * dqpt
+dbjs: jrzn - gdrc
+cnrf: hgcf * bjtf
+dbgc: hzph * mfmp
+bdwh: dppw * zmsn
+wfbf: tqbq * zcfj
+nppj: 2
+mssm: vqcr * qggs
+gbvt: gbgp * tmvj
+ghpm: dlnc + dbfr
+hllw: wsrd + zngq
+jvmt: lqtg + bwjl
+tthn: hjwl * fzgh
+qrtc: rvbl / djvz
+dlzh: rwll * lwmv
+nzvt: fzfb * bwhd
+cvzz: 15
+pwhq: 2
diff --git a/2022/day21/main.go b/2022/day21/main.go
new file mode 100644
index 0000000..1cfcd18
--- /dev/null
+++ b/2022/day21/main.go
@@ -0,0 +1,143 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	h "git.bullercodeworks.com/brian/adventofcode/helpers"
+)
+
+var output []string
+
+func main() {
+	inp := h.StdinToStringSlice()
+	part1(inp)
+	part2(inp)
+}
+
+func showLog() {
+	fmt.Println(h.CLEAR_SCREEN)
+	fmt.Println(strings.Join(output, "\n"))
+}
+
+func setLog(v ...string) {
+	output = []string{}
+	log(v...)
+}
+func log(v ...string) {
+	output = append(output, v...)
+}
+
+func loadMonkeys(inp []string) map[string]*Monkey {
+	monkeys := make(map[string]*Monkey)
+	for _, v := range inp {
+		if len(v) == 0 {
+			break
+		}
+		m := NewMonkey(strings.Split(v, ": ")...)
+		monkeys[m.name] = m
+	}
+	for _, v := range monkeys {
+		v.init(monkeys, 1)
+	}
+	return monkeys
+}
+
+func part1(inp []string) {
+	monkeys := loadMonkeys(inp)
+	log("# Part 1", fmt.Sprintf("%d", monkeys["root"].Value()))
+	showLog()
+}
+
+func part2(inp []string) {
+	fmt.Println()
+	monkeys := loadMonkeys(inp)
+
+	m1 := monkeys["root"].inp1 // <- Human is in here
+	m2 := monkeys["root"].inp2 // <- We need to make it match this
+	monkeys["humn"].Value = func() int { return 0 }
+	fmt.Println(m1.Value(), m2.Value())
+	monkeys["humn"].Value = func() int { return 1000 }
+	fmt.Println(m1.Value(), m2.Value())
+	//v := monkeys["root"].Value()
+
+	/*
+		i := 0
+		var lastV int
+		for {
+			monkeys["humn"].Value = func() int {
+				return i
+			}
+			v := monkeys["root"].Value()
+			if v == 0 {
+				output = append(output[:1], []string{"# Part 2", fmt.Sprintf("Found: %d", i)}...)
+				showLog()
+				return
+			}
+			output = append(output[:3], []string{
+				"# Part 2",
+				fmt.Sprintf("Scanning... [ humn: %d ]", i),
+				fmt.Sprintf("CURR: %d =? 0", v),
+				fmt.Sprintf("LAST: %d", lastV),
+			}...)
+			setLog(output...)
+			showLog()
+		}
+	*/
+}
+
+type Operation int
+
+const (
+	opAdd = iota
+	opSub
+	opMlt
+	opDiv
+)
+
+type Monkey struct {
+	name       string
+	op         Operation
+	inp1, inp2 *Monkey
+	rawValue   string
+	Value      func() int
+}
+
+func NewMonkey(inp ...string) *Monkey { return &Monkey{name: inp[0], rawValue: inp[1]} }
+func (m *Monkey) init(monkeys map[string]*Monkey, part int) {
+	pts := strings.Fields(m.rawValue)
+	if len(pts) == 1 {
+		m.Value = func() int { return h.Atoi(pts[0]) }
+	} else {
+		if part == 2 && m.name == "root" {
+			pts[1] = "-"
+		}
+		m.inp1, m.inp2 = monkeys[pts[0]], monkeys[pts[2]]
+		switch pts[1] {
+		case "+":
+			m.Value = func() int {
+				return m.inp1.Value() + m.inp2.Value()
+			}
+		case "-":
+			m.Value = func() int {
+				return m.inp1.Value() - m.inp2.Value()
+			}
+		case "*":
+			m.Value = func() int {
+				return m.inp1.Value() * m.inp2.Value()
+			}
+		case "/":
+			m.Value = func() int {
+				return m.inp1.Value() / m.inp2.Value()
+			}
+		case "=":
+			m.Value = func() int {
+				if m.inp1.Value() == m.inp2.Value() {
+					return 1
+				} else {
+					return 0
+				}
+			}
+		}
+	}
+}
diff --git a/2022/day21/problem b/2022/day21/problem
new file mode 100644
index 0000000..81a0f17
--- /dev/null
+++ b/2022/day21/problem
@@ -0,0 +1,102 @@
+                                                        Advent of Code
+
+     • [About]
+     • [Events]
+     • [Shop]
+     • [Settings]
+     • [Log Out]
+
+   br0xen (AoC++) 35*
+
+                                                              /*2022*/
+
+     • [Calendar]
+     • [AoC++]
+     • [Sponsors]
+     • [Leaderboard]
+     • [Stats]
+
+   Our sponsors help make Advent of Code possible:
+   Teradyne - Do you like coding algorithms where milliseconds matter? What about nanoseconds?
+
+--- Day 21: Monkey Math ---
+
+   The monkeys are back! You're worried they're going to try to steal your stuff again, but it seems like they're just
+   holding their ground and making various monkey noises at you.
+
+   Eventually, one of the elephants realizes you don't speak monkey and comes over to interpret. As it turns out, they
+   overheard you talking about trying to find the grove; they can show you a shortcut if you answer their riddle.
+
+   Each monkey is given a job: either to yell a specific number or to yell the result of a math operation. All of the
+   number-yelling monkeys know their number from the start; however, the math operation monkeys need to wait for two other
+   monkeys to yell a number, and those two other monkeys might also be waiting on other monkeys.
+
+   Your job is to work out the number the monkey named root will yell before the monkeys figure it out themselves.
+
+   For example:
+
+ root: pppw + sjmn
+ dbpl: 5
+ cczh: sllz + lgvd
+ zczc: 2
+ ptdq: humn - dvpt
+ dvpt: 3
+ lfqf: 4
+ humn: 5
+ ljgn: 2
+ sjmn: drzm * dbpl
+ sllz: 4
+ pppw: cczh / lfqf
+ lgvd: ljgn * ptdq
+ drzm: hmdt - zczc
+ hmdt: 32
+
+   Each line contains the name of a monkey, a colon, and then the job of that monkey:
+
+     • A lone number means the monkey's job is simply to yell that number.
+     • A job like aaaa + bbbb means the monkey waits for monkeys aaaa and bbbb to yell each of their numbers; the monkey
+       then yells the sum of those two numbers.
+     • aaaa - bbbb means the monkey yells aaaa's number minus bbbb's number.
+     • Job aaaa * bbbb will yell aaaa's number multiplied by bbbb's number.
+     • Job aaaa / bbbb will yell aaaa's number divided by bbbb's number.
+
+   So, in the above example, monkey drzm has to wait for monkeys hmdt and zczc to yell their numbers. Fortunately, both
+   hmdt and zczc have jobs that involve simply yelling a single number, so they do this immediately: 32 and 2. Monkey drzm
+   can then yell its number by finding 32 minus 2: 30.
+
+   Then, monkey sjmn has one of its numbers (30, from monkey drzm), and already has its other number, 5, from dbpl. This
+   allows it to yell its own number by finding 30 multiplied by 5: 150.
+
+   This process continues until root yells a number: 152.
+
+   However, your actual situation involves considerably more monkeys. What number will the monkey named root yell?
+
+   To begin, get your puzzle input.
+
+   Answer: _____________________ [ [Submit] ]
+
+   You can also [Shareon Twitter Mastodon] this puzzle.
+
+References
+
+   Visible links
+   . https://adventofcode.com/
+   . https://adventofcode.com/2022/about
+   . https://adventofcode.com/2022/events
+   . https://teespring.com/stores/advent-of-code
+   . https://adventofcode.com/2022/settings
+   . https://adventofcode.com/2022/auth/logout
+   . Advent of Code Supporter
+	https://adventofcode.com/2022/support
+   . https://adventofcode.com/2022
+   . https://adventofcode.com/2022
+   . https://adventofcode.com/2022/support
+   . https://adventofcode.com/2022/sponsors
+   . https://adventofcode.com/2022/leaderboard
+   . https://adventofcode.com/2022/stats
+   . https://adventofcode.com/2022/sponsors
+   . https://jobs.teradyne.com/?utm_source=adventofcode&utm_medium=ad&utm_campaign=2022
+   . https://adventofcode.com/2022/day/11
+   . https://adventofcode.com/2022/day/21/input
+   . https://twitter.com/intent/tweet?text=%22Monkey+Math%22+%2D+Day+21+%2D+Advent+of+Code+2022&url=https%3A%2F%2Fadventofcode%2Ecom%2F2022%2Fday%2F21&related=ericwastl&hashtags=AdventOfCode
+   . javascript:void(0);
diff --git a/2022/day21/testinput b/2022/day21/testinput
new file mode 100644
index 0000000..e14be60
--- /dev/null
+++ b/2022/day21/testinput
@@ -0,0 +1,15 @@
+root: pppw + sjmn
+dbpl: 5
+cczh: sllz + lgvd
+zczc: 2
+ptdq: humn - dvpt
+dvpt: 3
+lfqf: 4
+humn: 5
+ljgn: 2
+sjmn: drzm * dbpl
+sllz: 4
+pppw: cczh / lfqf
+lgvd: ljgn * ptdq
+drzm: hmdt - zczc
+hmdt: 32
diff --git a/2022/day22/input b/2022/day22/input
new file mode 100644
index 0000000..379cbef
--- /dev/null
+++ b/2022/day22/input
@@ -0,0 +1,202 @@
+                                                  ...#...#..........#..........#......#.....#.........................#.................#.............
+                                                  ............#.........#...#...................#.#.....#.............#...#...........................
+                                                  ........#.....##.#...............#......#.......#........#....#...#............#....................
+                                                  ...##.#.....#....#....#.....................##...............................##..........##.##......
+                                                  ......#.#...........#..............#...........#..#........#.............................#......#...
+                                                  ..........#.#...#...#.#........#....#.............................##......#......#.#..#.....#...#...
+                                                  .........................#........................#......................#.#........................
+                                                  ..................#..........##.....#....#..##........#......#....#..#.#...............#.......#....
+                                                  #..#.#.........#...........#...............................##......#........#..........##......#....
+                                                  .......#...#.#.#..........#....#................................................#......#............
+                                                  ..#....#...............#.#..........................................#.......................#.......
+                                                  .......#......................#.#...........##......##..#........#..............##....#.............
+                                                  ............#.#.......##.........#........#..........................#.....#................#....#..
+                                                  ..#..........#.........#...............##............#.........#..#...........#....#.#.......#..#...
+                                                  .................#.........#............#..........#...................#.............#..............
+                                                  ...............................#.............................................#...#...#......#.......
+                                                  .................................#.........#..........#..........#....#..#..........................
+                                                  ...................#............#..#...#.#.........#..........................#.....................
+                                                  #......#..........#...###.....##.....................#...#.......#.#.#.....#............#...........
+                                                  ....#..##..#....#.#.........#..........#....#...#.......#......#............#.#.#.#.................
+                                                  ........##.....#.............................................#...........................#..........
+                                                  .....#...........................................#.....................#........................#...
+                                                  #.#..#.#....#.......#..................##...............#....#........#.#.....#...........##........
+                                                  .....#..........#.....#....................................#...#.........#........#......#..........
+                                                  ...#.........#..#......#..................#............................#...........#......#.........
+                                                  .......#.........#....#...........#........................#........#...........#....#.............#
+                                                  ...................#..#........#..#........#...#.......#......................#..........#..........
+                                                  ...#.........................#...#...#.....#.............#.......#..................##......#.......
+                                                  ..#.................#..........................#.......................#....#....................#..
+                                                  .................#..................#..........#.#......###.....#.##..#...................#.........
+                                                  #.....#......#.#.........#.............#......##........#.....................#..#.........#.....#..
+                                                  ..#...............#........................##..#..........#..#.............#....#.#..#..#........#..
+                                                  .................#....#....#....#..#.......................#.......#.#...............#...#.#........
+                                                  .#.#.....#............#....#...##.#...#....................................#.#.......#...#.#....#...
+                                                  .................#.............##.............#.........#.......#.................#..............#..
+                                                  .#...#..........##...#....#.....#.............##.#......#...........#....................#..........
+                                                  ...........#........#......#........#.....#.#.#.#...........................................#.......
+                                                  ........#.....#......#.....##...................#.#.......#........#............................##.#
+                                                  ...#.....#.............#.....................##.....#.#.............##...............#....##..#.....
+                                                  ..................#...........##.#.....#....#..........#.#...................#..........#..#....#...
+                                                  #............#..#........#...................#...................#.......#.....#....................
+                                                  ..........................................#.....#.................#.......#.........##.............#
+                                                  ...................#................................................................................
+                                                  ..#.........#.....#..............#...#............#.#.....#.#..........#.......#...#................
+                                                  ....................................#...........................#...#.....#................#........
+                                                  .....#...#......#.......................................#..............#.........##.................
+                                                  .....#.............#...............#.......#.....#......#...........................................
+                                                  #####.#.................#.........#.......#..#....#...............#..#..........#........#...#......
+                                                  ...........##.....#...##...#............#............................#.#...#...............#....#...
+                                                  #.................#.........#.......#....#.............#............#........#......................
+                                                  #.............#......................#....#..#..#.
+                                                  ....#.............#.........#...#.......#.........
+                                                  ...#..................##......#...................
+                                                  .........#...#..#..##............#................
+                                                  .......#.......#.#.......#.....................#.#
+                                                  .......................#.....#....#....#..........
+                                                  #.....................#.........#.................
+                                                  ............#.................##.....##........#..
+                                                  ................#...............#.........#......#
+                                                  ..........................#...#....#.....#.....#..
+                                                  #.......#..#......#.....#.........#.....#......#..
+                                                  ..........................#...#................#..
+                                                  #...#...#..............#.......#..............#...
+                                                  ........................##........#........#.##...
+                                                  .........#........#..#.....#......................
+                                                  ......#...#......#..........#......#.......#.#....
+                                                  .........#......................#..........#......
+                                                  ..............................#.......#.#.........
+                                                  .........##.................#................#....
+                                                  ..........#.............#......#.#...##.........#.
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diff --git a/2022/day22/main.go b/2022/day22/main.go
new file mode 100644
index 0000000..ac7faf5
--- /dev/null
+++ b/2022/day22/main.go
@@ -0,0 +1,422 @@
+package main
+
+import (
+	"fmt"
+	"math"
+
+	h "git.bullercodeworks.com/brian/adventofcode/helpers"
+)
+
+func main() {
+	inp := h.StdinToStringSlice()
+	//part1(inp)
+	part2(inp)
+}
+func part1(inp []string) {
+	board, inst := inp[:len(inp)-2], inp[len(inp)-1]
+	b := BuildBoard(board)
+	var count int
+	var turn byte
+	fmt.Println(b)
+	fmt.Println(b.pos)
+	for len(inst) > 0 {
+		count, turn, inst = getNextInstructions(inst)
+		b.Move(count)
+		if turn == 'L' || turn == 'R' {
+			b.Turn(turn)
+		}
+	}
+	fmt.Println("Password:", b.Password())
+}
+
+func part2(inp []string) {
+	board, inst := inp[:len(inp)-2], inp[len(inp)-1]
+	b := BuildCubeBoard(board)
+	var count int
+	var turn byte
+	fmt.Println(b)
+	fmt.Println(b.pos)
+	for len(inst) > 0 {
+		count, turn, inst = getNextInstructions(inst)
+		b.Move(count)
+		if turn == 'L' || turn == 'R' {
+			b.Turn(turn)
+		}
+	}
+	fmt.Println("Password:", b.Password())
+}
+
+func getNextInstructions(inst string) (int, byte, string) {
+	for i := range inst {
+		if inst[i] == 'L' || inst[i] == 'R' {
+			return h.Atoi(inst[:i]), inst[i], inst[i+1:]
+		}
+	}
+	return h.Atoi(inst), 0, ""
+}
+
+const (
+	dirR = iota
+	dirD
+	dirL
+	dirU
+	dirErr
+
+	sideTop = iota
+	sideBottom
+	sideRight
+	sideLeft
+	sideFront
+	sideBack
+)
+
+type CubeBoard struct {
+	Top    *CubeBoardSide
+	Bottom *CubeBoardSide
+	Left   *CubeBoardSide
+	Right  *CubeBoardSide
+	Front  *CubeBoardSide
+	Back   *CubeBoardSide
+
+	// Pos now holds:
+	// y, x, dir, side
+	pos []int
+}
+
+// For the purposes of directions, we treat the board like this:
+//       [T]
+// [B][L][F][R]
+//       [B]
+// So up from left, front, back, and right are all top
+// Up from bottom is front
+// Down from bottom is back
+// Up from top is back
+// Down from top is front
+// So you can continually go left on the main level and circumnavigate the cube
+// Continually going up from anywhere will eventually get you bouncing between top and back
+// Continually going down from anywhere will eventually get you bouncing between bottom and back
+func BuildCubeBoard(inp []string) *CubeBoard {
+	cb := CubeBoard{}
+	var side string
+	for i := 0; i < len(inp); i++ {
+		if len(inp) == 0 {
+			break
+		}
+		side = inp[i]
+		i++
+		cbs := BuildCubeBoardSide(inp[i : i+len(inp[i])])
+		switch side {
+		case "Top":
+			cb.Top = cbs
+		case "Bottom":
+			cb.Bottom = cbs
+		case "Left":
+			cb.Left = cbs
+		case "Right":
+			cb.Right = cbs
+		case "Front":
+			cb.Front = cbs
+		case "Back":
+			cb.Back = cbs
+		}
+		i = i + cbs.Size() - 1
+	}
+	cb.pos = []int{0, 0, dirR, sideTop}
+	return &cb
+}
+func (cb *CubeBoard) Size() int { return cb.Top.Size() }
+func (cb *CubeBoard) Move(count int) {
+
+}
+func (cb *CubeBoard) GetPosUp() []int {
+	y := cb.pos[0]
+	x := cb.pos[1]
+	dir := cb.pos[2]
+	side := cb.pos[3]
+	if y == 0 {
+		// Going to another side
+		switch side {
+		case sideTop:
+			side = sideBack
+		case sideBottom:
+			side = sideFront
+		case sideFront:
+			side = sideTop
+		case sideBack:
+			side = sideTop
+		case sideLeft:
+			side = sideTop
+		case sideRight:
+			side = sideTop
+		}
+	}
+	return []int{y, x, dir, side}
+}
+func (cb *CubeBoard) GetPosDown() []int {
+	y := cb.pos[0]
+	x := cb.pos[1]
+	dir := cb.pos[2]
+	side := cb.pos[3]
+	if y == cb.Size()-1 {
+		// Going to another side
+		switch side {
+		case sideTop:
+			side = sideFront
+		case sideBottom:
+			side = sideBack
+		case sideFront:
+			side = sideBottom
+		case sideBack:
+			side = sideBottom
+		case sideLeft:
+			side = sideBottom
+		case sideRight:
+			side = sideBottom
+		}
+	} else {
+		y = y + 1
+	}
+	return []int{y, x, dir, side}
+}
+func (cb *CubeBoard) GetPosRight() []int {
+	y := cb.pos[0]
+	x := cb.pos[1]
+	dir := cb.pos[2]
+	side := cb.pos[3]
+	if x == cb.Size()-1 {
+		// Going to another side
+		switch side {
+		case sideTop:
+			side = sideRight
+		case sideBottom:
+			side = sideRight
+		case sideFront:
+			side = sideRight
+		case sideBack:
+			side = sideLeft
+		case sideLeft:
+			side = sideFront
+		case sideRight:
+			side = sideBack
+		}
+	} else {
+		y = y + 1
+	}
+	return []int{y, x, dir, side}
+}
+
+// Get the current pos' side
+func (cb *CubeBoard) Side() *CubeBoardSide {
+	switch cb.pos[3] {
+	case sideTop:
+		return cb.Top
+	case sideBottom:
+		return cb.Bottom
+	case sideFront:
+		return cb.Front
+	case sideBack:
+		return cb.Back
+	case sideLeft:
+		return cb.Left
+	case sideRight:
+		return cb.Right
+	}
+	return nil
+}
+func (cb *CubeBoard) Turn(dir byte) {
+	if dir == 'R' {
+		cb.pos[2] = (cb.pos[2] + 1) % dirErr
+	} else if dir == 'L' {
+		cb.pos[2] = (cb.pos[2] - 1 + dirErr) % dirErr
+	}
+}
+func (cb *CubeBoard) Tile(y, x, side int) byte {
+	switch side {
+	case sideTop:
+		return cb.Top.Tile(y, x)
+	case sideBottom:
+		return cb.Bottom.Tile(y, x)
+	case sideLeft:
+		return cb.Left.Tile(y, x)
+	case sideRight:
+		return cb.Right.Tile(y, x)
+	case sideFront:
+		return cb.Front.Tile(y, x)
+	case sideBack:
+		return cb.Back.Tile(y, x)
+	}
+	return 0
+}
+func (cb *CubeBoard) Password() int {
+	return 0
+}
+
+type CubeBoardSide struct {
+	spots [][]byte
+}
+
+func BuildCubeBoardSide(inp []string) *CubeBoardSide {
+	cbs := CubeBoardSide{}
+	fmt.Println("Building CBS from:", inp)
+	cbs.spots = make([][]byte, len(inp))
+	for y := range inp {
+		row := make([]byte, len(inp[y]))
+		for x := range inp[y] {
+			row[x] = inp[y][x]
+		}
+		cbs.spots[y] = row
+	}
+	return &cbs
+}
+func (cbs *CubeBoardSide) Size() int {
+	return len(cbs.spots)
+}
+func (cbs *CubeBoardSide) Tile(y, x int) byte {
+	if len(cbs.spots) < y && len(cbs.spots[y]) < x {
+		return cbs.spots[y][x]
+	}
+	return 0
+}
+
+type Board struct {
+	spots [][]byte
+	// pos holds
+	// y, x, dir
+	pos []int
+}
+
+func BuildBoard(inp []string) *Board {
+	maxX := math.MinInt
+	for y := range inp {
+		maxX = h.Max(maxX, len(inp[y]))
+	}
+	b := Board{
+		spots: make([][]byte, len(inp)),
+	}
+	for y := range inp {
+		sl := make([]byte, maxX)
+		for x := range inp[y] {
+			sl[x] = inp[y][x]
+		}
+		b.spots[y] = sl
+	}
+
+	b.pos = make([]int, 3)
+	for x := range b.spots[0] {
+		if b.spots[0][x] == '.' {
+			b.pos = []int{0, x, dirR}
+			break
+		}
+	}
+	return &b
+}
+func (b *Board) Password() int {
+	return ((b.pos[0] + 1) * 1000) + ((b.pos[1] + 1) * 4) + b.pos[2]
+}
+func (b *Board) Tile(y, x int) byte {
+	if len(b.spots) > y && len(b.spots[y]) > x {
+		return b.spots[y][x]
+	}
+	return 0
+}
+func (b *Board) GetNextPos() []int {
+	switch b.pos[2] {
+	case dirU:
+		return b.GetPosUp()
+	case dirR:
+		return b.GetPosRight()
+	case dirD:
+		return b.GetPosDown()
+	case dirL:
+		return b.GetPosLeft()
+	}
+	return []int{-1, -1}
+}
+func (b *Board) GetPosUp() []int {
+	x := b.pos[1]
+	y := ((b.pos[0] - 1) + len(b.spots)) % len(b.spots)
+	for (b.spots[y][x] == 0 || b.spots[y][x] == 32) && y != b.pos[0] {
+		y = ((y - 1) + len(b.spots)) % len(b.spots)
+	}
+	return []int{y, x}
+}
+func (b *Board) GetPosRight() []int {
+	y := b.pos[0]
+	x := (b.pos[1] + 1) % len(b.spots[y])
+	for (b.spots[y][x] == 0 || b.spots[y][x] == 32) && x != b.pos[1] {
+		x = (x + 1) % len(b.spots[y])
+	}
+	return []int{y, x}
+}
+func (b *Board) GetPosDown() []int {
+	x := b.pos[1]
+	y := (b.pos[0] + 1) % len(b.spots)
+	for (b.spots[y][x] == 0 || b.spots[y][x] == 32) && y != b.pos[0] {
+		y = (y + 1) % len(b.spots)
+	}
+	return []int{y, x}
+}
+func (b *Board) GetPosLeft() []int {
+	y := b.pos[0]
+	x := ((b.pos[1] - 1) + len(b.spots[y])) % len(b.spots[y])
+	for (b.spots[y][x] == 0 || b.spots[y][x] == 32) && x != b.pos[1] {
+		x = ((x - 1) + len(b.spots[y])) % len(b.spots[y])
+	}
+	return []int{y, x}
+}
+
+func (b *Board) Move(count int) {
+	var to []int
+	for count > 0 {
+		switch b.pos[2] {
+		case dirU:
+			to = b.GetPosUp()
+		case dirR:
+			to = b.GetPosRight()
+		case dirD:
+			to = b.GetPosDown()
+		case dirL:
+			to = b.GetPosLeft()
+		}
+		if b.Tile(to[0], to[1]) == '.' {
+			count--
+			b.pos[0], b.pos[1] = to[0], to[1]
+		} else {
+			break
+		}
+	}
+}
+
+func (b *Board) Turn(dir byte) {
+	if dir == 'R' {
+		b.pos[2] = (b.pos[2] + 1) % dirErr
+	} else if dir == 'L' {
+		b.pos[2] = (b.pos[2] - 1 + dirErr) % dirErr
+	}
+}
+
+func (b Board) String() string {
+	var ret string
+	for y := range b.spots {
+		for x := range b.spots[y] {
+			bt := b.spots[y][x]
+			if b.pos[1] == x && b.pos[0] == y {
+				switch b.pos[2] {
+				case dirU:
+					bt = '^'
+				case dirR:
+					bt = '>'
+				case dirD:
+					bt = 'v'
+				case dirL:
+					bt = '<'
+				default:
+					bt = '!'
+				}
+			}
+			ret = ret + fmt.Sprint(string(bt))
+		}
+		ret = ret + "\n"
+	}
+	return ret
+}
diff --git a/2022/day22/problem b/2022/day22/problem
new file mode 100644
index 0000000..7901411
--- /dev/null
+++ b/2022/day22/problem
@@ -0,0 +1,156 @@
+                                       Advent of Code
+
+     • [About]
+     • [Events]
+     • [Shop]
+     • [Settings]
+     • [Log Out]
+
+   br0xen (AoC++) 36*
+
+                                          var y=2022;
+
+     • [Calendar]
+     • [AoC++]
+     • [Sponsors]
+     • [Leaderboard]
+     • [Stats]
+
+   Our sponsors help make Advent of Code possible:
+   Infi - De kerstman wil weer cadeaus bezorgen maar komt tot de ontdekking dat zijn
+   Kerstman Positioning System (KPS) niet meer werkt. Kan jij hem helpen?
+
+--- Day 22: Monkey Map ---
+
+   The monkeys take you on a surprisingly easy trail through the jungle. They're even
+   going in roughly the right direction according to your handheld device's Grove
+   Positioning System.
+
+   As you walk, the monkeys explain that the grove is protected by a force field. To pass
+   through the force field, you have to enter a password; doing so involves tracing a
+   specific path on a strangely-shaped board.
+
+   At least, you're pretty sure that's what you have to do; the elephants aren't exactly
+   fluent in monkey.
+
+   The monkeys give you notes that they took when they last saw the password entered
+   (your puzzle input).
+
+   For example:
+
+         ...#
+         .#..
+         #...
+         ....
+ ...#.......#
+ ........#...
+ ..#....#....
+ ..........#.
+         ...#....
+         .....#..
+         .#......
+         ......#.
+
+ 10R5L5R10L4R5L5
+
+   The first half of the monkeys' notes is a map of the board. It is comprised of a set
+   of open tiles (on which you can move, drawn .) and solid walls (tiles which you cannot
+   enter, drawn #).
+
+   The second half is a description of the path you must follow. It consists of
+   alternating numbers and letters:
+
+     • A number indicates the number of tiles to move in the direction you are facing. If
+       you run into a wall, you stop moving forward and continue with the next
+       instruction.
+     • A letter indicates whether to turn 90 degrees clockwise (R) or counterclockwise
+       (L). Turning happens in-place; it does not change your current tile.
+
+   So, a path like 10R5 means "go forward 10 tiles, then turn clockwise 90 degrees, then
+   go forward 5 tiles".
+
+   You begin the path in the leftmost open tile of the top row of tiles. Initially, you
+   are facing to the right (from the perspective of how the map is drawn).
+
+   If a movement instruction would take you off of the map, you wrap around to the other
+   side of the board. In other words, if your next tile is off of the board, you should
+   instead look in the direction opposite of your current facing as far as you can until
+   you find the opposite edge of the board, then reappear there.
+
+   For example, if you are at A and facing to the right, the tile in front of you is
+   marked B; if you are at C and facing down, the tile in front of you is marked D:
+
+         ...#
+         .#..
+         #...
+         ....
+ ...#.D.....#
+ ........#...
+ B.#....#...A
+ .....C....#.
+         ...#....
+         .....#..
+         .#......
+         ......#.
+
+   It is possible for the next tile (after wrapping around) to be a wall; this still
+   counts as there being a wall in front of you, and so movement stops before you
+   actually wrap to the other side of the board.
+
+   By drawing the last facing you had with an arrow on each tile you visit, the full path
+   taken by the above example looks like this:
+
+         >>v#
+         .#v.
+         #.v.
+         ..v.
+ ...#...v..v#
+ >>>v...>#.>>
+ ..#v...#....
+ ...>>>>v..#.
+         ...#....
+         .....#..
+         .#......
+         ......#.
+
+   To finish providing the password to this strange input device, you need to determine
+   numbers for your final row, column, and facing as your final position appears from the
+   perspective of the original map. Rows start from 1 at the top and count downward;
+   columns start from 1 at the left and count rightward. (In the above example, row 1,
+   column 1 refers to the empty space with no tile on it in the top-left corner.) Facing
+   is 0 for right (>), 1 for down (v), 2 for left (<), and 3 for up (^). The final
+   password is the sum of 1000 times the row, 4 times the column, and the facing.
+
+   In the above example, the final row is 6, the final column is 8, and the final facing
+   is 0. So, the final password is 1000 * 6 + 4 * 8 + 0: 6032.
+
+   Follow the path given in the monkeys' notes. What is the final password?
+
+   To begin, get your puzzle input.
+
+   Answer: _____________________ [ [Submit] ]
+
+   You can also [Shareon Twitter Mastodon] this puzzle.
+
+References
+
+   Visible links
+   . https://adventofcode.com/
+   . https://adventofcode.com/2022/about
+   . https://adventofcode.com/2022/events
+   . https://teespring.com/stores/advent-of-code
+   . https://adventofcode.com/2022/settings
+   . https://adventofcode.com/2022/auth/logout
+   . Advent of Code Supporter
+	https://adventofcode.com/2022/support
+   . https://adventofcode.com/2022
+   . https://adventofcode.com/2022
+   . https://adventofcode.com/2022/support
+   . https://adventofcode.com/2022/sponsors
+   . https://adventofcode.com/2022/leaderboard
+   . https://adventofcode.com/2022/stats
+   . https://adventofcode.com/2022/sponsors
+   . https://aoc.infi.nl/?mtm_campaign=aoc2022&mtm_source=aoc
+   . https://adventofcode.com/2022/day/22/input
+   . https://twitter.com/intent/tweet?text=%22Monkey+Map%22+%2D+Day+22+%2D+Advent+of+Code+2022&url=https%3A%2F%2Fadventofcode%2Ecom%2F2022%2Fday%2F22&related=ericwastl&hashtags=AdventOfCode
+   . javascript:void(0);
diff --git a/2022/day22/testinput b/2022/day22/testinput
new file mode 100644
index 0000000..8bc2e1e
--- /dev/null
+++ b/2022/day22/testinput
@@ -0,0 +1,14 @@
+        ...#
+        .#..
+        #...
+        ....
+...#.......#
+........#...
+..#....#....
+..........#.
+        ...#....
+        .....#..
+        .#......
+        ......#.
+
+10R5L5R10L4R5L5
diff --git a/2022/day22/testinput-m b/2022/day22/testinput-m
new file mode 100644
index 0000000..b6eeaaf
--- /dev/null
+++ b/2022/day22/testinput-m
@@ -0,0 +1,32 @@
+Top
+...#
+.#..
+#...
+....
+Back
+...#
+....
+..#.
+....
+Left
+....
+....
+...#
+....
+Front
+...#
+#...
+....
+..#.
+Bottom
+...#
+....
+.#..
+....
+Right
+....
+.#..
+....
+..#.
+
+10R5L5R10L4R5L5
diff --git a/2022/day23/input b/2022/day23/input
new file mode 100644
index 0000000..ff490ba
--- /dev/null
+++ b/2022/day23/input
@@ -0,0 +1,73 @@
+.#.###...###....##..####.#.###.####.#..##......#.####.###.###...#.####.##
+.#...#.####.##.#.#.#####.#.#.....#...#.####.#..#.###.###....##.#.###.#...
+.....#..#........###.##.......###..#.....#####......###.#.#.####..#...#.#
+.##.##.#.####....###.#..###..#########..##....#..##..#.##.#....#.#.##.#.#
+..#..##...#.#..##.#...###.#.#..#...#....####.##.##...#.###.###...##..#.#.
+###.###....#.##.#...#.##.##.##..###.#.#..##...###.###...###.#.#..#.######
+.#.#####..#.####.###..##.#.#.#.#.#.#...##.####.#..#.#####.#..#....#.#..#.
+..######.##.#.##.###..#.#.#.#.##..###.######..#.......######.#.##.##..#.#
+#####......#.......######.#####.###..###......#..#..###.....#.#####......
+##...#.#..###.#######.###.##########...#...#.##.#..#..##.#...#.##....##..
+####.#...######....##..#.###.#...#.#.#..########...#..#######.####.#.#.##
+#....###..#.##..###.....#.#####...#.##....###..##.#..##..#....###......#.
+##.#..#.##.#.####...#.....##.##.#.#.######.#.###.....##..#......#..##.#..
+.......#.#####.#..#.##.#....##..#.##.#..#..#.###.#.##...#..#.##.#..#.....
+#.#..#...#..####.#.#.###..###..#######.#...#....##..###...#...##.###.###.
+#.#..#..#...##..#.#...#..#.#.#..#.#..#####......##..##.#...#.#.###....##.
+#..#...##.#.#.#....##......##...#.###.#..#..#...#.###.####.#.##..##....#.
+###.#..#.#.##..#.##......#...####.....##...#.#......##..######.#.#..#..#.
+.......#.######...##..#....#.#...##......#.....#..###.######.#...#.####.#
+...##.....#....#.##.##.########.#..#....#####.######....##.###...#.#.##..
+##...##..#...#.#..#..#.#.##.###.########..##...#..##....##..##..#####..##
+##..#####..#.####..##...#.##..##.##..#....####..####..#.########.#######.
+.#.#.######..#.##.###.#.#...#.#...###..#.##.#####.##.####.#...####.##.###
+##.#..#.#####.#....#..##...##..##.###..#.#....#.##....###.....#..##.##..#
+##.##.#..##.###.#.##.#..###...##.##...##.###...####.###...#.####.#.....#.
+.#.##..#####..#..#.....#####.#.#.###.#.#.####.##....##..#..##.####.###...
+.#...#.#.######.#....##.##.#.##...#..#.##....##...#.##.....###.#......###
+##....###.##.###.##.###..##...####..#..#####..##..........##.....#.#.#..#
+..#####.##.#...#......#..###..#...##..#.###....##.##.##.####.#.##.###..##
+##.##..#####..####..#..##.#....##...#..####..######...##..##.#.###.#.##.#
+.#.#..#...######.###..##.#......##.##..#.##.##..#.##.#.#.###.##..###....#
+..###.#...#......#.#.#........#.#######..#.#.######..##.#...###.##.#....#
+#..####.....#.#.#.#.###...#..##.#.#.##.#.#...###.#.#.#.#####..#.##.###..#
+##...####.....#....#.####.#....#...####.########..#....######.#..##..#.##
+.#.#.##...########.#######.......##......###..#....########..#......#..##
+.##......#..#######..#....#..##.#.####..##.#.#..##..##..#######..###.#.#.
+..##.######...##..#.#.##...##.###.##.##....##.#...#..#..#..###.####......
+.#.###.###.#..###..#.#.##.#..##.#.#..#.####.#.#...##.#####.#.##..#..##.#.
+.#..#........#..#..#.#..####.#.#....#.#.#.#...##...####..##.##.##.#.##.#.
+##...#.#.#.###...#....###..####.##..##.##..#.#####.##....#..##.########.#
+.#.#..##.#.####..#..#...#.######...###.#.#####.###.##.##..............##.
+.....###.#..###.#.##...#.#.####..##.#####.##..#.###.##.....#..##.#.#.#.#.
+##.#...###.#.#.###.#...#....#.#.....#.#..#.#..###.##.#...##..#####.#..#..
+.###....#######.##.#..#####.#.#.##.#..###.#.#.###.#.#.###...#.##.....###.
+##.#.#.#...#...#.#...#.....##..###..#......#.#.###.#.#.##.##..####.####..
+#.###.#####.#####....#..###..####.###.#####..##.....#.#####.###...#..#.#.
+.#..#..#..##..####.######...#...#.#.#.#....#.#......###...###.....#..###.
+#..####.##.#.#..##..#####.###..#.######.##..####.........##.....##..#.#..
+#..#.#..##.#.#..##..##.#.#.#.#..#.#....#.#.###.#.#.##.#.#.#..###..#...###
+##....###.##..#..##.##.#.##.#.....#...###.######....#.##.##.#..##.##...##
+.#..#....#...#.###..########.#...#..#.#.###.#.###...#..#.#..##.###.##..##
+#.#.##.##.#...######.#...#...###.###.##...###.#..#.##...#.###.###.##.#.##
+.....#..##..##.####..##..#.###.#######.#...##..#...#####..##...####......
+#.#####..##...#.##...#.#...##....######.#.#####...#.....#.#..#.#...#..#..
+#####.####.####.#..#.####..##..###.######..##.###..####.#...#.#.###....#.
+###..#.##.#######.#.#.#.#......###.#.##..##.##.##..#.#....#..####......#.
+.....#..#..#..###...#.###..####.#...###...######.#.##....###.##..#..#..#.
+#.#..##..##.##...#.###.#.###.#####.#.#.####.###.##.####..##.###..#.#####.
+.###....#...#.##.####.#.....####..#.##..##..##.##.#.##.##..###.###.#..#..
+..#.###.....#...##..###.##....###..####.#.##.###.####.##.#.##.#...#.#####
+.##.#..#....#..##.###..#..#.#..####.##.#...#.......###.#...#.##......#.#.
+......###.##########..###.##..#...#....#....#.####....##.#.#.##.##......#
+#.#.####..#.#..##..##......##..#####..##.#.#.###........#.#..#.#####.#.#.
+#...###..#...##..#.#.##..#.#..#..#.##..#.#...#####..#.#.###.##.#..##.#.#.
+..#.###.###..###..#.#.#.##.###.#####......#.###...##.#.##.###.##.##.#####
+....###..##.#.##....#..###.#.##.###.#....#.##...#...####.#.#..##..##.#.#.
+#..#.###.###.######.#.##.#..#.#.#...#..#........##..#...##.###.#.##.#...#
+####...###...#.###.#..#.#.#..#.#..##....#.##.#..#.##.#..#.###.#.##.####..
+.#####....##.#..##.....##.#..#......#..##..#.....#..#.###.#.#.###...###.#
+.#........#.....###.####..##....##.##....####.##.#####...##..#........#..
+...#####.#.####.#.#....#..##.#..#.#.##....###....#..#..#...##.#.##.##...#
+#...##..#.####.####.##.##.###.##....#...#.####..##.#.......#..#.###..#..#
+.##...#####..####..#.###.##..##.#.#...#....#.#..####..##...#.....#.##.##.
diff --git a/2022/day23/main.go b/2022/day23/main.go
new file mode 100644
index 0000000..dce5ad9
--- /dev/null
+++ b/2022/day23/main.go
@@ -0,0 +1,201 @@
+package main
+
+import (
+	"fmt"
+	"math"
+	"sort"
+
+	h "git.bullercodeworks.com/brian/adventofcode/helpers"
+)
+
+func main() {
+	inp := h.StdinToStringSlice()
+	part1(inp)
+	part2(inp)
+}
+
+func part1(inp []string) {
+	field := plotElves(inp)
+	for i := 0; i < 10; i++ {
+		proposals := buildProposals(field, i)
+		for k, v := range proposals {
+			delete(field, v)
+			field[k] = true
+		}
+	}
+	fmt.Println("# Part 1")
+	fmt.Println("Empty Tiles:", countEmpties(field))
+}
+func part2(inp []string) {
+	field := plotElves(inp)
+	var lastHash string
+	for i := 0; i < 100000000; i++ {
+		proposals := buildProposals(field, i)
+		for k, v := range proposals {
+			delete(field, v)
+			field[k] = true
+		}
+		currHash := fieldHash(field)
+		if currHash == lastHash {
+			fmt.Println("# Part 2")
+			fmt.Println("Stable on round", i+1)
+			return
+		}
+		lastHash = currHash
+	}
+	fmt.Println("# Part 2")
+	fmt.Println("No solution found.")
+}
+func fieldHash(field map[h.Coordinate]bool) string {
+	var sorted []h.Coordinate
+	for k := range field {
+		sorted = append(sorted, k)
+	}
+	sort.Slice(sorted, func(i, j int) bool {
+		if sorted[i].X == sorted[j].X {
+			return sorted[i].Y > sorted[j].Y
+		}
+		return sorted[i].X > sorted[j].X
+	})
+	return fmt.Sprintf("%v", sorted)
+}
+
+func countEmpties(field map[h.Coordinate]bool) int {
+	maxX, minX := math.MinInt, math.MaxInt
+	maxY, minY := math.MinInt, math.MaxInt
+	for k := range field {
+		maxX = h.Max(maxX, k.X)
+		minX = h.Min(minX, k.X)
+		maxY = h.Max(maxY, k.Y)
+		minY = h.Min(minY, k.Y)
+	}
+	var ret int
+	for y := minY; y <= maxY; y++ {
+		for x := minX; x <= maxX; x++ {
+			if _, ok := field[h.Coordinate{X: x, Y: y}]; !ok {
+				ret++
+			}
+		}
+	}
+	return ret
+}
+func printField(field map[h.Coordinate]bool) {
+	maxX, minX := math.MinInt, 0
+	maxY, minY := math.MinInt, 0
+	for k := range field {
+		maxX = h.Max(maxX, k.X)
+		minX = h.Min(minX, k.X)
+		maxY = h.Max(maxY, k.Y)
+		minY = h.Min(minY, k.Y)
+	}
+	maxX = maxX + 2
+	maxY = maxY + 2
+	for y := minY; y <= maxY; y++ {
+		for x := minX; x <= maxX; x++ {
+			if _, ok := field[h.Coordinate{X: x, Y: y}]; ok {
+				fmt.Print("#")
+			} else {
+				fmt.Print(".")
+			}
+		}
+		fmt.Println()
+	}
+}
+func plotElves(inp []string) map[h.Coordinate]bool {
+	field := make(map[h.Coordinate]bool)
+	for y := range inp {
+		for x := range inp[y] {
+			if inp[y][x] == '#' {
+				field[h.Coordinate{X: x, Y: y}] = true
+			}
+		}
+	}
+	return field
+}
+func buildProposals(field map[h.Coordinate]bool, round int) map[h.Coordinate]h.Coordinate {
+	props := make(map[h.Coordinate]h.Coordinate)
+	var errProps []h.Coordinate
+	for k := range field {
+		var neighbors []h.Coordinate
+		for _, n := range k.GetAllNeighbors() {
+			if _, ok := field[n]; ok {
+				neighbors = append(neighbors, n)
+			}
+		}
+		if len(neighbors) == 0 {
+			continue
+		}
+		var hasNorth, hasEast, hasSouth, hasWest bool
+		for _, n := range neighbors {
+			if n.Y < k.Y {
+				hasNorth = true
+			}
+			if n.Y > k.Y {
+				hasSouth = true
+			}
+			if n.X < k.X {
+				hasWest = true
+			}
+			if n.X > k.X {
+				hasEast = true
+			}
+		}
+		addProp := func(c h.Coordinate) {
+			if _, ok := props[c]; ok {
+				errProps = append(errProps, c)
+			} else {
+				props[c] = k
+			}
+		}
+		testNorth := func(c h.Coordinate) bool {
+			if !hasNorth {
+				addProp(k.North())
+				return true
+			}
+			return false
+		}
+		testSouth := func(c h.Coordinate) bool {
+			if !hasSouth {
+				addProp(k.South())
+				return true
+			}
+			return false
+		}
+		testWest := func(c h.Coordinate) bool {
+			if !hasWest {
+				addProp(k.West())
+				return true
+			}
+			return false
+		}
+		testEast := func(c h.Coordinate) bool {
+			if !hasEast {
+				addProp(k.East())
+				return true
+			}
+			return false
+		}
+		findProposal := func(c h.Coordinate, tests ...func(h.Coordinate) bool) {
+			for i := range tests {
+				if tests[i](c) == true {
+					return
+				}
+			}
+		}
+		switch round % 4 {
+		case 0: // North First
+			findProposal(k, testNorth, testSouth, testWest, testEast)
+		case 1: // South First
+			findProposal(k, testSouth, testWest, testEast, testNorth)
+		case 2: // West First
+			findProposal(k, testWest, testEast, testNorth, testSouth)
+		case 3: // East First
+			findProposal(k, testEast, testNorth, testSouth, testWest)
+		}
+	}
+	// Now remove all conflicts
+	for i := range errProps {
+		delete(props, errProps[i])
+	}
+	return props
+}
diff --git a/2022/day23/problem b/2022/day23/problem
new file mode 100644
index 0000000..c4a80fd
--- /dev/null
+++ b/2022/day23/problem
@@ -0,0 +1,299 @@
+Advent of Code
+br0xen (AoC++) 39*
+
+--- Day 23: Unstable Diffusion ---
+
+   You enter a large crater of gray dirt where the grove is supposed to be. All around
+   you, plants you imagine were expected to be full of fruit are instead withered and
+   broken. A large group of Elves has formed in the middle of the grove.
+
+   "...but this volcano has been dormant for months. Without ash, the fruit can't grow!"
+
+   You look up to see a massive, snow-capped mountain towering above you.
+
+   "It's not like there are other active volcanoes here; we've looked everywhere."
+
+   "But our scanners show active magma flows; clearly it's going somewhere."
+
+   They finally notice you at the edge of the grove, your pack almost overflowing from
+   the random star fruit you've been collecting. Behind you, elephants and monkeys
+   explore the grove, looking concerned. Then, the Elves recognize the ash cloud slowly
+   spreading above your recent detour.
+
+   "Why do you--" "How is--" "Did you just--"
+
+   Before any of them can form a complete question, another Elf speaks up: "Okay, new
+   plan. We have almost enough fruit already, and ash from the plume should spread here
+   eventually. If we quickly plant new seedlings now, we can still make it to the
+   extraction point. Spread out!"
+
+   The Elves each reach into their pack and pull out a tiny plant. The plants rely on
+   important nutrients from the ash, so they can't be planted too close together.
+
+   There isn't enough time to let the Elves figure out where to plant the seedlings
+   themselves; you quickly scan the grove (your puzzle input) and note their positions.
+
+   For example:
+
+ ....#..
+ ..###.#
+ #...#.#
+ .#...##
+ #.###..
+ ##.#.##
+ .#..#..
+
+   The scan shows Elves # and empty ground .; outside your scan, more empty ground
+   extends a long way in every direction. The scan is oriented so that north is up;
+   orthogonal directions are written N (north), S (south), W (west), and E (east), while
+   diagonal directions are written NE, NW, SE, SW.
+
+   The Elves follow a time-consuming process to figure out where they should each go; you
+   can speed up this process considerably. The process consists of some number of rounds
+   during which Elves alternate between considering where to move and actually moving.
+
+   During the first half of each round, each Elf considers the eight positions adjacent
+   to themself. If no other Elves are in one of those eight positions, the Elf does not
+   do anything during this round. Otherwise, the Elf looks in each of four directions in
+   the following order and proposes moving one step in the first valid direction:
+
+     • If there is no Elf in the N, NE, or NW adjacent positions, the Elf proposes moving
+       north one step.
+     • If there is no Elf in the S, SE, or SW adjacent positions, the Elf proposes moving
+       south one step.
+     • If there is no Elf in the W, NW, or SW adjacent positions, the Elf proposes moving
+       west one step.
+     • If there is no Elf in the E, NE, or SE adjacent positions, the Elf proposes moving
+       east one step.
+
+   After each Elf has had a chance to propose a move, the second half of the round can
+   begin. Simultaneously, each Elf moves to their proposed destination tile if they were
+   the only Elf to propose moving to that position. If two or more Elves propose moving
+   to the same position, none of those Elves move.
+
+   Finally, at the end of the round, the first direction the Elves considered is moved to
+   the end of the list of directions. For example, during the second round, the Elves
+   would try proposing a move to the south first, then west, then east, then north. On
+   the third round, the Elves would first consider west, then east, then north, then
+   south.
+
+   As a smaller example, consider just these five Elves:
+
+ .....
+ ..##.
+ ..#..
+ .....
+ ..##.
+ .....
+
+   The northernmost two Elves and southernmost two Elves all propose moving north, while
+   the middle Elf cannot move north and proposes moving south. The middle Elf proposes
+   the same destination as the southwest Elf, so neither of them move, but the other
+   three do:
+
+ ..##.
+ .....
+ ..#..
+ ...#.
+ ..#..
+ .....
+
+   Next, the northernmost two Elves and the southernmost Elf all propose moving south. Of
+   the remaining middle two Elves, the west one cannot move south and proposes moving
+   west, while the east one cannot move south or west and proposes moving east. All five
+   Elves succeed in moving to their proposed positions:
+
+ .....
+ ..##.
+ .#...
+ ....#
+ .....
+ ..#..
+
+   Finally, the southernmost two Elves choose not to move at all. Of the remaining three
+   Elves, the west one proposes moving west, the east one proposes moving east, and the
+   middle one proposes moving north; all three succeed in moving:
+
+ ..#..
+ ....#
+ #....
+ ....#
+ .....
+ ..#..
+
+   At this point, no Elves need to move, and so the process ends.
+
+   The larger example above proceeds as follows:
+
+ == Initial State ==
+ ..............
+ ..............
+ .......#......
+ .....###.#....
+ ...#...#.#....
+ ....#...##....
+ ...#.###......
+ ...##.#.##....
+ ....#..#......
+ ..............
+ ..............
+ ..............
+
+ == End of Round 1 ==
+ ..............
+ .......#......
+ .....#...#....
+ ...#..#.#.....
+ .......#..#...
+ ....#.#.##....
+ ..#..#.#......
+ ..#.#.#.##....
+ ..............
+ ....#..#......
+ ..............
+ ..............
+
+ == End of Round 2 ==
+ ..............
+ .......#......
+ ....#.....#...
+ ...#..#.#.....
+ .......#...#..
+ ...#..#.#.....
+ .#...#.#.#....
+ ..............
+ ..#.#.#.##....
+ ....#..#......
+ ..............
+ ..............
+
+ == End of Round 3 ==
+ ..............
+ .......#......
+ .....#....#...
+ ..#..#...#....
+ .......#...#..
+ ...#..#.#.....
+ .#..#.....#...
+ .......##.....
+ ..##.#....#...
+ ...#..........
+ .......#......
+ ..............
+
+ == End of Round 4 ==
+ ..............
+ .......#......
+ ......#....#..
+ ..#...##......
+ ...#.....#.#..
+ .........#....
+ .#...###..#...
+ ..#......#....
+ ....##....#...
+ ....#.........
+ .......#......
+ ..............
+
+ == End of Round 5 ==
+ .......#......
+ ..............
+ ..#..#.....#..
+ .........#....
+ ......##...#..
+ .#.#.####.....
+ ...........#..
+ ....##..#.....
+ ..#...........
+ ..........#...
+ ....#..#......
+ ..............
+
+   After a few more rounds...
+
+ == End of Round 10 ==
+ .......#......
+ ...........#..
+ ..#.#..#......
+ ......#.......
+ ...#.....#..#.
+ .#......##....
+ .....##.......
+ ..#........#..
+ ....#.#..#....
+ ..............
+ ....#..#..#...
+ ..............
+
+   To make sure they're on the right track, the Elves like to check after round 10 that
+   they're making good progress toward covering enough ground. To do this, count the
+   number of empty ground tiles contained by the smallest rectangle that contains every
+   Elf. (The edges of the rectangle should be aligned to the N/S/E/W directions; the
+   Elves do not have the patience to calculate arbitrary rectangles.) In the above
+   example, that rectangle is:
+
+ ......#.....
+ ..........#.
+ .#.#..#.....
+ .....#......
+ ..#.....#..#
+ #......##...
+ ....##......
+ .#........#.
+ ...#.#..#...
+ ............
+ ...#..#..#..
+
+   In this region, the number of empty ground tiles is 110.
+
+   Simulate the Elves' process and find the smallest rectangle that contains the Elves
+   after 10 rounds. How many empty ground tiles does that rectangle contain?
+
+   Your puzzle answer was 4000.
+
+--- Part Two ---
+
+   It seems you're on the right track. Finish simulating the process and figure out where
+   the Elves need to go. How many rounds did you save them?
+
+   In the example above, the first round where no Elf moved was round 20:
+
+ .......#......
+ ....#......#..
+ ..#.....#.....
+ ......#.......
+ ...#....#.#..#
+ #.............
+ ....#.....#...
+ ..#.....#.....
+ ....#.#....#..
+ .........#....
+ ....#......#..
+ .......#......
+
+   Figure out where the Elves need to go. What is the number of the first round where no
+   Elf moves?
+
+   Your puzzle answer was 1040.
+
+   Both parts of this puzzle are complete! They provide two gold stars: **
+
+References
+
+   Visible links
+   . https://adventofcode.com/
+   . https://adventofcode.com/2022/about
+   . https://adventofcode.com/2022/events
+   . https://adventofcode.com/2022/settings
+   . https://adventofcode.com/2022/auth/logout
+   . Advent of Code Supporter
+	https://adventofcode.com/2022/support
+   . https://adventofcode.com/2022
+   . https://adventofcode.com/2022
+   . https://adventofcode.com/2022/support
+   . https://adventofcode.com/2022/sponsors
+   . https://adventofcode.com/2022/leaderboard
+   . https://adventofcode.com/2022/stats
+   . https://adventofcode.com/2022/sponsors
+   . https://adventofcode.com/2022
+   . https://adventofcode.com/2022/day/23/input
diff --git a/2022/day23/testinput b/2022/day23/testinput
new file mode 100644
index 0000000..14005cf
--- /dev/null
+++ b/2022/day23/testinput
@@ -0,0 +1,7 @@
+....#..
+..###.#
+#...#.#
+.#...##
+#.###..
+##.#.##
+.#..#..
diff --git a/2022/day23/testinput2 b/2022/day23/testinput2
new file mode 100644
index 0000000..57a5784
--- /dev/null
+++ b/2022/day23/testinput2
@@ -0,0 +1,6 @@
+.....
+..##.
+..#..
+.....
+..##.
+.....
diff --git a/go.mod b/go.mod
index 355a45b..2d3b962 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module git.bullercodeworks.com/brian/adventofcode
 
-go 1.13
+go 1.16
 
 require (
 	github.com/br0xen/termbox-screen v0.0.0-20190712162752-c91f70ac38c6
diff --git a/helpers/coordinate.go b/helpers/coordinate.go
index a5c7a39..157487a 100644
--- a/helpers/coordinate.go
+++ b/helpers/coordinate.go
@@ -66,6 +66,13 @@ func (c *Coordinate) SE() Coordinate {
 func (c *Coordinate) GetOrthNeighbors() []Coordinate {
 	return []Coordinate{c.North(), c.East(), c.South(), c.West()}
 }
+func (c *Coordinate) GetAllNeighbors() []Coordinate {
+	return []Coordinate{
+		c.North(), c.NE(),
+		c.East(), c.SE(),
+		c.South(), c.SW(),
+		c.West(), c.NW()}
+}
 
 func (c *Coordinate) GetNorthCoord() *Coordinate {
 	return &Coordinate{