add pvs(), aka Principal Variation Search

2023-07-11 22:18:41 +02:00
parent af1f5db507
commit 9932a64c97
6 changed files with 435 additions and 29 deletions
--- a/src/search.h
+++ b/src/search.h
@@ -14,12 +14,9 @@
 #ifndef SEARCH_H
 #define SEARCH_H

-#include <limits.h>
 #include "position.h"

-#define EVAL_MIN INT_MIN
-#define EVAL_MAX INT_MAX
-
 eval_t negamax(pos_t *pos, int depth, int color);
+eval_t pvs(pos_t *pos, int depth, int alpha, int beta, int color);

 #endif  /* SEARCH_H */