[gnugo-devel] bug in gnugo

[Evan Berggren Daniel]

Loading the attached position and asking gnugo for a move generates an
illegal move:

   A B C D E F G H J
 9 . . . . O O O O X 9
 8 . . . O O X X X X 8
 7 . . + O X X O O O 7
 6 . . O O O X O X . 6
 5 . . O X X X O X X 5
 4 . O O O X . O X . 4
 3 . . O X X X O O X 3
 2 . . O X . X O X X 2     WHITE (O) has captured 0 stones
 1 . O . O O X X X X 1     BLACK (X) has captured 0 stones
   A B C D E F G H J

reg_genmove black
= C1

is_legal black C1
= 0

quit
=

I haven't checked whether this is present in 3.4.

Evan Daniel

(;GM[1]FF[3]
RU[Japanese]SZ[9]HA[0]KM[5.5]
PW[White]
PB[Black]
GN[White (W) vs. Black (B)]
DT[2003-12-10]
SY[Cgoban 1.9.14]TM[-];
AW[ea][fa][ga][ha][db][eb][dc][gc][hc][ic][cd][dd][ed][gd][ce][ge][bf][cf][df][gf][cg][gg][hg][ch][gh][bi][di][ei]
AB[ia][fb][gb][hb][ib][ec][fc][fd][hd][de][ee][fe][he][ie][ef][hf][dg][eg][fg][ig][dh][fh][hh][ih][fi][gi][hi][ii]
)