From 01f5b71fd484801f7b06df3bfb0156f5bb69fef7 Mon Sep 17 00:00:00 2001
From: Scott Gasch <scott@gasch.org>
Date: Wed, 26 Aug 2026 08:26:19 -0700
Subject: Don't [re-]consult the SEE when generator already just did so.

---
 src/chess.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/chess.h')

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,
-- 
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