From df0135e11e9ea3dd0acab94fdf437451ef7e522b Mon Sep 17 00:00:00 2001
From: Scott Gasch <scott@gasch.org>
Date: Wed, 26 Aug 2026 06:58:26 -0700
Subject: Make EVAL_HASH optional.

---
 src/evalhash.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'src/evalhash.c')

diff --git a/src/evalhash.c b/src/evalhash.c
index 210c369..bd95b99 100644
--- a/src/evalhash.c
+++ b/src/evalhash.c
@@ -19,12 +19,11 @@ Revision History:
 --*/
 
 #include "chess.h"
-#ifdef EVAL_HASH
 
 extern ULONG g_uIterateDepth;
 
-SCORE 
-GetRoughEvalScore(IN OUT SEARCHER_THREAD_CONTEXT *ctx, 
+SCORE
+GetRoughEvalScore(IN OUT SEARCHER_THREAD_CONTEXT *ctx,
                   IN SCORE iAlpha,
                   IN SCORE iBeta,
                   IN FLAG fUseHash)
@@ -67,6 +66,7 @@ Return value:
     {
         return Eval(ctx, iAlpha, iBeta);
     }
+#ifdef EVAL_HASH
     else if ((fUseHash) || (ctx->uPly <= (g_uIterateDepth / 2)))
     {
         u64Key = (pos->u64PawnSig ^ pos->u64NonPawnSig);
@@ -93,9 +93,16 @@ Return value:
             }
         }
     }
+#else
+    (void)u64Key;
+    (void)u;
+    (void)fUseHash;
+#endif
     return(pos->iMaterialBalance[pos->uToMove] + ctx->uPositional);
 }
 
+#ifdef EVAL_HASH
+
 
 SCORE
 ProbeEvalHash(IN OUT SEARCHER_THREAD_CONTEXT *ctx, IN SCORE iAlpha, IN SCORE iBeta)
-- 
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