Suppress promotion popup if piece will explode

In atomic, a Pawn capture to last rank is not really a promotion.
Fix choice to Queen.

diff --git a/backend.c b/backend.c
index d94da90..6c18a36 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -5721,6 +5721,11 @@ HasPromotionChoice(int fromX, int fromY, int toX, int toY, char *promoChoice)
        *promoChoice = PieceToChar(BlackFerz);  // no choice
        return FALSE;
     }
+    // no sense asking what we must promote to if it is going to explode...
+    if(gameInfo.variant == VariantAtomic && boards[currentMove][toY][toX] != EmptySquare) {
+       *promoChoice = PieceToChar(BlackQueen); // Queen as good as any
+       return FALSE;
+    }
     if(autoQueen) { // predetermined
        if(gameInfo.variant == VariantSuicide || gameInfo.variant == VariantLosers)
             *promoChoice = PieceToChar(BlackKing); // in Suicide Q is the last thing we want