5.7.6 shorten SEE

olithink · Sep 12, 2020 · c27b0b4 · c27b0b4
1 parent e7c28ba
commit c27b0b4
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/olithink.c b/src/olithink.c
@@ -1,5 +1,5 @@
 /* OliThink5 (c) Oliver Brausch 12.Sep.2020, ob112@web.de, http://brausch.org */
-#define VER "5.7.6"
+#define VER "5.7.6a"
 #include <stdio.h>
 #include <string.h>
 #if defined(_WIN32) || defined(_WIN64)
@@ -898,15 +898,17 @@ int swap(Move m) { //SEE
 		else if ((temp = pieceb[BISHOP] & colorb[c] & attacks)) piece = BISHOP;
 		else if ((temp = pieceb[ROOK] & colorb[c] & attacks)) piece = ROOK;
 		else if ((temp = pieceb[QUEEN] & colorb[c] & attacks)) piece = QUEEN;
-		else if ((temp = pieceb[KING] & colorb[c] & attacks)) piece = KING;
+		else if ((temp = pieceb[KING] & colorb[c] & attacks)) {
+			piece = KING; if (colorb[c^1] & attacks) break;
+		}
 		else break;
 
 		temp &= -(long long)temp;
 		colorb[c] ^= temp;
 
 		s_list[nc] = -s_list[nc - 1] + a_piece;
 		a_piece = pval[piece];
-		nc++;
+		if (a_piece < s_list[++nc - 1]) break;
 		c ^= 1;
 	} while (attacks);