Dear all, maybe you will find this test case (SGF file below), directly inspired by D. Feldmann's webpage, interesting. I find it related to the "divide & conquer" issue discussed by Martin some time ago.
With komi 54, it should be a seki, leading to a draw. MoGo does not read it correctly, even with long time settings. Maybe programs with more Go expertise for Nakade will solve it. I am interested in any news around that. You can make it harder by adding room in the bottom-right part (provided that you ensure that all belongs to black). Best regards, Olivier (;FF[4]CA[UTF-8]AP[GoGui:1.2.1]SZ[13] KM[54]DT[2012-06-27] ;B[al];W[ak];B[am];W[bl];B[bm];W[bk];B[cm];W[ck];B[dm];W[cj] ;B[dl];W[bj];B[dk];W[em];B[dj];W[el];B[di];W[ek];B[ci];W[ej] ;B[bi];W[fj];B[ai];W[fi];B[fm];W[fh];B[fl];W[eh];B[fk];W[dh] ;B[gk];W[ch];B[gj];W[bh];B[gi];W[ah];B[gh];W[dg];B[eg];W[df] ;B[fg];W[ef];B[gg];W[ff];B[hg];W[gf];B[ig];W[hf];B[if];W[he] ;B[jf];W[ie];B[kf];W[je];B[lf];W[ke];B[mf];W[le];B[me];W[ld] ;B[md];W[lc];B[mc];W[lb];B[mb];W[la];B[ma];W[jb];B[ja];W[ib] ;B[ka];W[ia];B[kb];W[ic];B[kc];W[hc];B[kd];W[hb];B[jd];W[fe] ;B[id];W[fd];B[hd];W[fc];B[gd];W[fb];B[gc];W[fa];B[gb];W[db] ;B[ga];W[cb];B[ha];W[ca];B[da];W[cc];B[ea];W[bb];B[eb];W[bc] ;B[ec];W[de];B[ed];W[ce];B[dd];W[be];B[cd];W[ae];B[bd];W[jg] ;B[cf];W[kg];B[bf];W[jh];B[af];W[kh];B[bg];W[lh];B[ag];W[lg] ;B[ad];W[mg];B[ac];W[mh];B[ab];W[ih];B[aa];W[hh];B[ba];W[hi] ;B[hj];W[ii];B[ij];W[ji];B[jj];W[ki];B[kj];W[li];B[lj];W[mi] ;B[mj];W[lg];B[mg];W[lh];B[mh];W[li];B[mi];W[jg];B[kg];W[jh] ;B[kh];W[ji];B[ki];W[hi];B[ii];W[hh];B[ih];W[hk];B[ik];W[hl] ;B[gl];W[il];B[hm];W[im];B[jl];W[gm];B[jm];W[jk];B[hm];W[kk] ;B[kl];W[lk];B[ll];W[mk];B[ml];W[lk];B[kk];W[hl];B[il];W[km] ;B[lm];W[li];B[lh];W[ji];B[jh];W[hh];B[aj])
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