michito744

This trend has not changed in 60b, so here is an example of the progress in exploration. W is still good after 100k search. KataGo misinterprets this progress as good...

Below is an example of how KataGo was decisively ruined under very difficult circumstances. This record is a slightly older KataGo 40b, but also the latest versions (both 40b and...

Thank you for reply. game record: (;GM[1]FF[4] SZ[19] GN[] DT[2021-01-08] PB[B] PW[W] BR[] WR[] KM[6.5]HA[0]RU[Japanese]AP[GNU Go:3.8]RE[B+R]TM[]TC[]TT[]RL[0] ;B[pd];W[dp];B[pp];W[dd];B[cc];W[dc];B[cd];W[de];B[bf];W[qq];B[qp];W[pq];B[op];W[nq];B[rp];W[mr];B[mo];W[qk];B[qi];W[ok];B[lq];W[qc];B[pc];W[qd];B[qf];W[qe];B[pe];W[rf];B[qg];W[rg];B[oi];W[id];B[mj];W[mk];B[lk];W[nj];B[ni];W[lj];B[mi];W[ml];B[kk];W[lm];B[rr];W[lr];B[jq];W[kr];B[jo];W[kn];B[fq];W[im];B[cn];W[dn];B[dm];W[en];B[co];W[cp];B[jr];W[kq];B[kp];W[lp];B[lo];W[np];B[no];W[mp];B[ko];W[fp];B[gp];W[gq];B[ep];W[fo];B[dq];W[do];B[cq];W[bq];B[br];W[bo];B[aq];W[cm];B[hp];W[cb];B[bb];W[be];B[db];W[ce];B[eb];W[di];B[ik];W[hn];B[fj];W[fc];B[dj];W[ei];B[ej];W[fb];B[ca];W[bd];B[bc];W[cj];B[fi];W[ci];B[ck];W[dl];B[dk];W[ig];B[eh];W[fh];B[eg];W[fg];B[ff];W[gf];B[cg];W[bh];B[bg];W[dg];B[dh];W[bj];B[bm];W[bn];B[cl];W[am];B[ak];W[ch];B[df];W[fe];B[cn];W[ef];B[qb];W[rb];B[rc];W[rd];B[sb];W[sc];B[ra];W[sa];B[hl];W[jk];B[jj];W[jl];B[kj];W[rj];B[ri];W[rm];B[sb];W[ap];B[ar];W[sa];B[jn];W[jm];B[sb];W[dr];B[cr];W[hq];B[ip];W[sa];B[pm];W[fr];B[eq];W[pb];B[qm];W[go];B[bp];W[rl];B[nm];W[ql];B[sk];W[sj];B[si];W[bq];B[ob];W[bl];B[pa];W[qa];B[bk];W[cm];B[ln];W[ll];B[bm];W[er];B[hr];W[cm];B[aj];W[ai];B[bm];W[gr];B[iq];W[cm];B[ah];W[ag];B[bm];W[bp];B[cs];W[lc];B[af];W[dg];B[fm];W[pb];B[an];W[cm];B[hm];W[in];B[bm];W[hs];B[ir];W[cm];B[nl];W[nk];B[bm];W[is];B[js];W[cm];B[gn];W[gl];B[gk];W[fl];B[el];W[ho];B[bm]) The stinker in this game was that the move (before 10 moves) shown...

New extremely severe case:    E10 is bad. There are not many chances for Black to win against ko.  Game record: (;CA[UTF-8]KM[6.5]GM[1]SZ[19]GN[]PW[W]CP[]AP[Lizzie: 0.7.4]DT[2021-10-23]EV[]PB[B]RE[]PC[]TM[]CA[UTF-8];B[pd];W[dp];B[qp];W[dd];B[op];W[fq];B[cc];W[cd];B[dc];W[ed];B[ec];W[gc];B[fc];W[fd];B[gb];W[hc];B[hb];W[ck];B[fj];W[di];B[gp];W[jq];B[lq];W[gq];B[pj];W[jo];B[ic];W[qc];B[qd];W[pc];B[oc];W[ob];B[nb];W[nc];B[od];W[mb];B[pb];W[na];B[qb];W[fl];B[hk];W[gj];B[ep];W[dq];B[do];W[gk];B[cl];W[bl];B[cp];W[cq];B[cn];W[bo];B[bm];W[dl];B[dm];W[cm];B[eq];W[er];B[fp];W[hq];B[cl];W[rc];B[rb];W[cm];B[fr];W[dr];B[cl];W[qq];B[pq];W[cm];B[em];W[cl];B[bn];W[bp];B[fm];W[gm];B[gn];W[hn];B[hm];W[gl];B[in];W[ho];B[hp];W[io];B[ip];W[iq];B[jp];W[go];B[fn];W[ko];B[kp];W[hl];B[el];W[ek];B[ge];W[mo];B[gd];W[pr];B[or];W[nq];B[nr];W[qo];B[rp];W[po];B[pp];W[rj];B[ql];W[rl];B[qj];W[qk];B[pk];W[rk];B[qh];W[pl];B[ol];W[qm];B[me];W[kc];B[cf];W[ef];B[bd];W[be];B[ce];W[bc];B[ad];W[ac];B[ee];W[fe];B[ff];W[de];B[df];W[ae];B[bd];W[ad];B[eg];W[bg];B[ee];W[bd];B[ch];W[bh];B[ci];W[bi];B[cj];W[bj];B[dj];W[gf];B[gg];W[hf];B[ie];W[hg];B[gh];W[hh];B[gi];W[ef];B[fg];W[hi];B[ei];W[rf];B[re];W[rh];B[qg];W[kj];B[bf];W[af];B[bb];W[cb];B[db];W[rg];B[qf];W[mj];B[lk];W[mk];B[lm];W[ml];B[mn];W[lp];B[dk];W[al];B[im];W[il];B[jm];W[kq];B[fk];W[mq];B[jk];W[jl];B[kl];W[ik];B[kk];W[jj];B[lj];W[li];B[mi];W[kh];B[lh];W[ki];B[no];W[fo];B[eo];W[dn];B[ej];W[co];B[en];W[mr];B[pm];W[om];B[ql];W[pn];B[nm];W[pl];B[mh];W[nl];B[ok];W[mm];B[nn];W[ln];B[nj];W[kf];B[am];W[ab];B[ba];W[ag];B[jb];W[kb];B[ri];W[si];B[qi];W[ro];B[pa];W[np];B[oo];W[jd];B[id];W[rq];B[sp];W[ps])

In a recent title match, we encountered a phase where the AI was completely useless; not only KataGo, but also FineArt made a fatal mistake. It was completely unreliable for...

From the same game. In the very serious situation shown below, there is a completely different means pointed out by a professional Go player.  It's a very complex...

Game record: (;GM[1]SZ[19]CA[UTF-8] PB[ICHIRIKI Ryo]BR[] PW[IYAMA Yuta]WR[] DT[2022-01-22] RE[] KM[6.5]TM[]RU[Japanese] PC[] EV[] GN[] CP[] AP[Kiin Editor 1.11] ;B[pd];W[dc];B[pq];W[dq];B[ce];W[do];B[dn];W[en];B[co];W[eo] ;B[ed];W[ec];B[fd];W[gc];B[cp];W[dm];B[dp];W[ep];B[cq];W[cn] ;B[eq];W[fq];B[dr];W[qo];B[pm];W[oo];B[np];W[qd];B[qc];W[qe] ;B[pc];W[qh];B[qp];W[rp];B[rq];W[no];B[mp];W[mo];B[lp];W[lo] ;B[ko];W[op];B[oq];W[kp](;B[jo];W[iq];B[km];W[ml];B[ip];W[jq] ;B[hq];W[hr];B[gq];W[gr];B[fr];W[fp];B[go];W[fs];B[er];W[mr] ;B[nr];W[lq];B[nq];W[pp];B[qq];W[ms];B[pi];W[qi];B[pk];W[lk] ;B[ph];W[pj];B[oj];W[qj];B[nk];W[pg];B[mm];W[nm];B[ll];W[mk] ;B[nl];W[om];B[kk];W[li](;B[pn];W[ln];B[lm];W[pl];B[nj];W[ol] ;B[lj];W[ro];B[dk];W[gn];B[he];W[cd];B[bd];W[de];B[dd];W[cc] ;B[cf];W[og];B[ic];W[bc];B[hn];W[gm];B[cl];W[hm];B[in];W[fj] ;B[fk];W[gk];B[fl];W[ej];B[ek];W[gj];B[ci];W[jj];B[ih];W[hi] ;B[fm];W[fn];B[jk];W[ik];B[ij];W[ii];B[ji];W[dg];B[ch];W[gd]...

The bottom side is already okay with W doing nothing. If Black actually move K2, KataGo himself can discover the procedure.

Details Black's bottom side has already been crashed.  Even if you start with black, W6 is a excellent move after B1W2B3W4B5, and either △ or □ key stones will...

Anomalies are sometimes the best solution in Go, but KataGo's policy is significantly lacking in the ability to discover it.