Re: [gnugo-devel] Bug alert

[Gunnar Farnebäck]

On 06/12/2013 10:02 AM, Laurent Pequin wrote:
> As gnugo told me to send you a message, this is done :)
>
> ***assertion failure:
> move_reasons.c:1055 - target2 != NO_MOVE near O5***
>
>
>     A B C D E F G H J K L M N O P Q R S T
> 19 . . . . . . . . . . . . . . . O X . . 19
> 18 . . . O X . . X . X O O O . . . O X X 18
> 17 . . . O . X . X O X X X . O O . O X . 17
> 16 . . O O X O O . O + . . X . X O O O X 16
> 15 . . O X X X X O . . . . . . X X X X X 15
> 14 . . . X . O O O O O . X . . . . . . . 14
> 13 . O X . . . O X X X X X O . O O O O . 13
> 12 . O X . . X O . . X O O O . X X X X O 12
> 11 . O X . X . O O O . O X X X X O O . . 11     WHITE (O) has captured 0
> stones
> 10 . O X + . . X X . O . O O O O X O . . 10     BLACK (X) has captured 1
> stones
>   9 . O X . . . . . X O . . . . . X O . . 9
>   8 . O X . . . . X O O . . . . X X O . . 8
>   7 . . . . . . . . X X X X X X . O . . . 7
>   6 . . . . . . X . X O O O O X . . . . . 6
>   5 X X X X X . O . X X X O . . O O O . . 5
>   4 X O O O . . . . . X . X O . X X X . . 4
>   3 O . . . . O . . O . . X O . . . . . . 3
>   2 . O . . . . . . . . . . . . . . . . . 2
>   1 . . . . . . . . . . . . . . . . . . . 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 3.8 stepped on a bug]
> ;B[qp];W[cd];B[de];W[po];B[pp];W[dd];B[ed];W[ce];B[df];W[bg];B[cg];W[bh]
> ;B[ch];W[dp];B[eo];W[fq];B[do];W[cp];B[co];W[pd];B[oe];W[nc];B[od];W[oc]
> ;B[pe];W[qd];B[qe];W[bi];B[ci];W[pm];B[ol];W[mn];B[mm];W[qk];B[pl];W[ql]
> ;B[pk];W[qj];B[pj];W[qi];B[md];W[lb];B[lc];W[kb];B[kc];W[pi];B[oi];W[kn]
> ;B[lm];W[jl];B[km];W[jj];B[jm];W[ii];B[ik];W[jk];B[im];W[mj];B[li];W[lj]
> ;B[mi];W[ki];B[jh];W[gi];B[hj];W[hi];B[gj];W[hf];B[ig];W[ff];B[fe];W[nj]
> ;B[ni];W[kh];B[kg];W[lh];B[lg];W[jf];B[jg];W[mh];B[oh];W[if];B[hg];W[gg]
> ;B[ge];W[gf];B[fh];W[id];B[jc];W[gh];B[ei];W[mg];B[lf];W[oj];B[nm];W[og]
> ;B[ph];W[pg];B[qh];W[qg];B[rh];W[rg];B[re];W[ic];B[jb];W[mb];B[hb];W[gd]
> ;B[fc];W[ln];B[io];W[oo];B[op];W[he];B[hc];W[bj];B[cj];W[db];B[eb];W[rd]
> ;B[sd];W[sc];B[se];W[sh];B[rc];W[qc];B[rb];W[qb];B[qa];W[pa];B[sb];W[bk]
> ;B[ck];W[il];B[hl];W[bl];B[cl];W[dc];B[bo];W[bp];B[ap];W[iq];B[jp];W[go]
> ;B[gn];W[mq];B[lp];W[mp];B[lq];W[lo];B[ko];W[jn];B[jo];W[aq];B[ao];W[br]
> ;B[in];W[fd];B[ee];W[qo];B[nn]
> )
> gnugo 3.8 (seed 1371024050): You stepped on a bug.
> Please mail this message, including the debug output above, to
> address@hidden <mailto:address@hidden>

Thanks for the report. Unfortunately I can't reproduce the crash from
the game record so it might depend on the history from a longer
session. Or did you run GNU Go with some interesting runtime or
compile time options?

/Gunnar