Cyclic point redistribution

[gunnar]

http://lists.gnu.org/archive/html/gnugo-devel/2008-06/msg00001.html

Cyclic point redistribution detected.


***assertion failure:
move_reasons.c:1389 - 0 near R17***


  A B C D E F G H J K L M N O P Q R S T
19 X X X X X . X X X O O . O O O O X X . 19
18 X X X X X X X X X X O . O . O X X X O 18
17 . . . . X X O X O O O O . O X X . . X 17
16 X X X + X O O O O + O . O . O X . X O 16
15 X . X X O O . O . O O O O O O X X X . 15
14 . X . X O . . . O . . X X O X O X . X 14
13 X X . X X O O . O O . . . O . O X X X 13
12 X X X O O O X O . O . O . O . O O O O 12
11 X O O . . . X X O O X O . . O O X X X 11     WHITE (O) has captured 17 stones
10 O O O O O . X O X X O . . O X O X . X 10     BLACK (X) has captured 28 stones
9 X O X X O X . O O . . O . O X X X X O 9
8 X O X X O X . O . X X O . . O O X O O 8
7 X O X X O . . . O O O . . . O X X O O 7
6 X X . X O O . O X . . . O . O X . O O 6
5 X . X X X O O X X O O . . . O X X X O 5
4 X . X + X O O O O O X O . . O O X X O 4
3 X . . . X O X X X X X O . . O X X O O 3
2 X . X X X O X . X X . X O . O X X X O 2
1 . X . X O O X . X . X X O O X X . O . 1
  A B C D E F G H J K L M N O P Q R S T
(;GM[1]FF[4]SZ[19]KM[6.5]HA[0]GN[GNU Go 3.7.11 stepped on a bug]
;B[gh];W[qh];B[qp];W[qq];B[pq];W[pp];B[qo];W[oq];B[pr];W[oo];B[qr];W[rq]
;B[rr];W[lq];B[ep];W[gp];B[cp];W[cn];B[cl];W[cj];B[dm];W[ej];B[ch];W[eh]
;B[ce];W[ef];B[ed];W[dd];B[de];W[ee];B[ec];W[cc];B[bj];W[bk];B[ck];W[bi]
;B[df];W[ci];B[eg];W[fg];B[dg];W[fh];B[cd];W[dc];B[db];W[cb];B[eb];W[gd]
;B[gi];W[hj];B[hc];W[gg];B[fk];W[ek];B[fl];W[bl];B[jd];W[lc];B[kc];W[nc]
;B[ld];W[md];B[lf];W[le];B[mf];W[ke];B[of];W[je];B[jq];W[jo];B[gr];W[fq]
;B[eq];W[fr];B[ho];W[ip];B[ir];W[go];B[io];W[jp];B[kq];W[lp];B[lr];W[mr]
;B[ks];W[kd];B[jb];W[gc];B[lb];W[id];B[gb];W[hb];B[ib];W[ic];B[ha];W[hh]
;B[hi];W[ii];B[gj];W[hl];B[ij];W[hk];B[ih];W[ji];B[jj];W[jh];B[jl];W[im]
;B[in];W[jm];B[kl];W[km];B[hg];W[jg];B[ki];W[lh];B[pe];W[nh];B[ge];W[he]
;B[qm];W[pl];B[hf];W[fe];B[pm];W[om];B[ql];W[nj];B[gf];W[jc];B[ff];W[fd]
;B[dn];W[el];B[pc];W[em];B[bn];W[en];B[er];W[kb];B[pk];W[ol];B[qj];W[pi]
;B[fc];W[hd];B[bb];W[bc];B[ca];W[ba];B[aa];W[dh];B[ka];W[mb];B[la];W[bm]
;B[cm];W[bo];B[co];W[hp];B[an];W[es];B[jr];W[ll];B[ds];W[or];B[bg];W[fs]
;B[cr];W[kc];B[hb];W[ac];B[ba];W[fa];B[da];W[ja];B[bd];W[ma];B[ad];W[ob]
;B[pb];W[lk];B[qf];W[pg];B[oa];W[rc];B[re];W[qd];B[oc];W[pf];B[qe];W[od]
;B[pd];W[oe];B[pn];W[on];B[bh];W[dj];B[nb];W[na];B[ps];W[ob];B[rb];W[pa]
;B[qa];W[oa];B[po];W[op];B[ai];W[aj];B[ri];W[rh];B[si];W[sh];B[qi];W[pj]
;B[ok];W[nk];B[oj];W[oi];B[qk];W[nf];B[kp];W[ko];B[gq];W[fp];B[eo];W[fo]
;B[ah];W[me];B[rg];W[ng];B[os];W[ns];B[ls];W[ms];B[hq];W[hn];B[am];W[bp]
;B[qg];W[bq];B[sg];W[ph];B[al];W[br];B[bs];W[cq];B[gs];W[dq];B[dr];W[dp]
;B[do];W[ao];B[ar];W[sb];B[iq];W[kj];B[dk];W[ik];B[dl];W[fn];B[fb];W[ka]
;B[ia];W[if];B[ap];W[ig];B[aq];W[hh];B[ak];W[bj];B[ao];W[li];B[is];W[mn]
;B[ae];W[af];B[bf];W[sr];B[rp];W[rs];B[sq];W[rq];B[ea];W[sp];B[ga];W[so]
;B[ab];W[rn];B[cb];W[rm];B[ro];W[rl];B[rk];W[sk];B[sj];W[sl];B[sn];W[sm]
;B[ag];W[sn];B[qq];W[sq];B[ra];W[qc];B[rd];W[sd];B[qb];W[se];B[sf];W[ne]
;B[sc];W[sd]
)
gnugo 3.7.11 (seed 1213172307): You stepped on a bug.
Please mail this message, including the debug output above, to gnugo@gnu.org

[gunnar]

Another essentially identical crash is reported at http://lists.gnu.org/archive/html/gnugo-devel/2008-09/msg00003.html

[gunnar]

Be more forgiving with replacement moves conflicting with unconditional analysis.