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| -rw-r--r-- | chess-ai.el | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/chess-ai.el b/chess-ai.el index 7aeabe8..55e31f5 100644 --- a/chess-ai.el +++ b/chess-ai.el @@ -102,6 +102,18 @@ reply moves. You can only specify the search depth (see `chess-ai-depth')." (* (length (chess-pos-passed-pawns position nil black-pawns)) chess-ai-passed-pawn)))) + ;; Mobility + (setq v (+ v + (- (length (append (chess-legal-plies position :piece ?Q) + (chess-legal-plies position :piece ?R) + (chess-legal-plies position :piece ?B) + (chess-legal-plies position :piece ?N)) + ) + (length (append (chess-legal-plies position :piece ?q) + (chess-legal-plies position :piece ?r) + (chess-legal-plies position :piece ?b) + (chess-legal-plies position :piece ?n)) + )))) (if (chess-pos-side-to-move position) v (- v))))))) |