diff options
Diffstat (limited to 'chess-pos.el')
| -rw-r--r-- | chess-pos.el | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/chess-pos.el b/chess-pos.el index 453df5a..4958720 100644 --- a/chess-pos.el +++ b/chess-pos.el @@ -705,11 +705,11 @@ If NO-CASTLING is non-nil, do not consider castling moves." (assert (vectorp position)) (assert (and (>= target 0) (< target 64))) (assert (memq piece '(t nil ?K ?Q ?N ?B ?R ?P ?k ?q ?n ?b ?r ?p))) - (let* ((color (if (char-valid-p piece) + (let* ((color (if (characterp piece) (< piece ?a) piece)) (bias (if color -1 1)) - (test-piece (and (char-valid-p piece) + (test-piece (and (characterp piece) (upcase piece))) p pos candidates) (cond @@ -844,7 +844,7 @@ If NO-CASTLING is non-nil, do not consider castling moves." ;; prune from the discovered candidates list any moves which would ;; leave the king in check; castling through check has already ;; been eliminated. - (if (and candidates (char-valid-p piece)) + (if (and candidates (characterp piece)) (setq candidates (chess-pos-legal-candidates position color target candidates))) |