🚀 go-pugleaf

When I have a pawn on the 7th rank, I can't queen it. I've tried every
method of expressing the move that I can think of, with no success. The
problem is consistent, it happens every time. Has this been reported
before ?  GnuChess's response is what it would be if you'd entered an
illegal move (ie. it just sits there until you enter a legal move).

The file CHESS.LST from such an occurrence follows, partially trimmed.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Black (GnuChess)               White (Me)

                                  d2d4      10
 d7d5     0  0     0   0          e2e3       5
 g8f6   -13  4  3574  20          f1d3       6
 e7e6    -3  4  3687  20          b1d2       9
 b8c6     3  4  4331  21          c2c3       2
 f8d6    18  4  3987  23          f2f4       2
 e8g8    27  3  2521  13          g1f3       3
 f6g4    27  3  3116  15          d1e2      13
 f7f5    14  3  3173  16          e1g1      20
 c8d7     6  3  2268  13          f3e5       2
 d6e5    46  4  8351  30          f4e5       3
 d8g5    11  4  8271  33          d2f3       9
 g5g6    -2  4  6533  26          c1d2       7
 a7a6   -13  3  3247  18          b2b4       6
 g8h8    -3  3  6162  30          a2a4       3
 c6e7   -12  3  4478  21          h2h3      28
 g4h6     2  4  5838  22          g1h2       3
 g6h5    -5  3  2831  14          f1g1      14
 d7c6     7  3  3481  14          a4a5      38
 h6f7     5  3  3027  14          g2g4       9
 f5g4    34  4  6544  25          g1g4       4
 f7h6    25  4  5333  17          g4f4      14
 e7f5    20  3  3126  12          a1g1      13
 f5e7     3  2  3537  15          g1g5      35
 h5e8   -11  3  2270  10          e2g2      10
 h6f5   -12  3  2822  11          f3h4      16
 h7h6    -1  4  4666  12          h4f5      26
 h6g5   138  3  2964   8          f5g7       5
 h8g7   -55  4  9763  21          g2g5       3
 e7g6   -85  4  3997   8          f4f8      19
 g7f8   -82  4  4069  10          d3g6       8
 e8d7   -95  4  2917  11          h3h4      26
 b7b6   -90  3  2814   9          h4h5      10
 b6a5   -86  4  3416   9          h5h6       2
 d7e7   -94  3  4229  13          g5h5      21
 a5b4    -1  3  2561   9          h6h7       3
 f8g7    18  4  3864   9          e3e4       6
 b4c3   110  3  3119   9          d2g5       7
 e7f7 -1379  4 29152  57          g6f7      30
 a8d8 -9991  3  2838   5
                                  and now it won't allow h8.