1 files changed, 7 insertions, 0 deletions
diff --git a/src/chess.h b/src/chess.h
index e47279d..fe5cd2b 100755
--- a/src/chess.h
+++ b/src/chess.h
@@ -689,6 +689,8 @@ POSITION;
 #define MVF_EXTEND_MOVE      (2)
 #define MVF_REDUCE_MOVE      (4)
 #define MVF_PRUNE_SUBTREE    (8)
+#define MVF_SEE_KNOWN        (16)   // SEE(pos, mv) was already computed
+#define MVF_SEE_NONNEGATIVE  (32)   // ...and its sign was >= 0
 
 typedef struct _MOVE_STACK_MOVE_VALUE_FLAGS
 {
@@ -2357,6 +2359,11 @@ ComputeReactionToCheckExtension(IN OUT SEARCHER_THREAD_CONTEXT *ctx,
                                 IN OUT INT *piExtend,
                                 IN OUT INT *piOrigExtend);
 
+SCORE
+GetCheckSee(IN SEARCHER_THREAD_CONTEXT *ctx,
+            IN MOVE mv,
+            IN ULONG uMoveNum);
+
 void
 ComputeMoveExtension(IN OUT SEARCHER_THREAD_CONTEXT *ctx,
                      IN SCORE iAlpha,