1 files changed, 0 insertions, 44 deletions

diff --git a/src/eval.c b/src/eval.c
index 99baf8a..cf9527b 100755
--- a/src/eval.c
+++ b/src/eval.c
@@ -5561,18 +5561,6 @@ Return value:
     pos->uMinMobility[BLACK] = pos->uMinMobility[WHITE] = 100;
     pos->cTrapped[BLACK] = pos->cTrapped[WHITE] = ILLEGAL_COOR;
 
-#ifdef EVAL_HASH
-    //
-    // Check the eval hash
-    //
-    iScoreForSideToMove = ProbeEvalHash(ctx, iAlpha, iBeta);
-    if (iScoreForSideToMove != INVALID_SCORE)
-    {
-        INC(ctx->sCounters.tree.u64EvalHashHits);
-        goto end;
-    }
-#endif
-
     pos->iScore[BLACK] =
         (pos->uPawnMaterial[BLACK] + pos->uNonPawnMaterial[BLACK]);
     pos->iScore[WHITE] =
@@ -5690,16 +5678,6 @@ Return value:
             {
                 *piPositional = iAlphaMargin;
             }
-#ifdef EVAL_HASH
-            //
-            // The true eval can't reach iAlpha; that's a fact about
-            // the position (not this particular window), so remember
-            // it as a proven upper bound for reuse by later probes.
-            //
-            StoreEvalHash(ctx, iScoreForSideToMove,
-                         (SCORE)(iScoreForSideToMove + iAlphaMargin),
-                         EVAL_HASH_UPPER);
-#endif
             goto end;
         }
         else if (iScoreForSideToMove - iBetaMargin >= iBeta)
@@ -5709,11 +5687,6 @@ Return value:
             {
                 *piPositional = iBetaMargin;
             }
-#ifdef EVAL_HASH
-            StoreEvalHash(ctx, iScoreForSideToMove,
-                         (SCORE)(iScoreForSideToMove - iBetaMargin),
-                         EVAL_HASH_LOWER);
-#endif
             goto end;
         }
     }
@@ -6090,15 +6063,6 @@ Return value:
     {
         *piPositional = iAlphaMargin;
     }
-    if ((ULONG)iAlphaMargin > ctx->uPositional)
-    {
-        ctx->uPositional = (ULONG)iAlphaMargin;
-    }
-    else
-    {
-        ctx->uPositional -= (ctx->uPositional - (ULONG)iAlphaMargin) / 4;
-        ctx->uPositional = MAXU(ctx->uPositional, VALUE_PAWN);
-    }
     g_Options.iLastEvalScore = iScoreForSideToMove;
 
 #ifdef EVAL_TIME
@@ -6107,13 +6071,6 @@ Return value:
 #endif
     INC(ctx->sCounters.tree.u64FullEvals);
 
-#ifdef EVAL_HASH
-    //
-    // Store in eval hash.
-    //
-    StoreEvalHash(ctx, iScoreForSideToMove, 0, EVAL_HASH_EXACT);
-#endif
-
  end:
     ASSERT(IS_VALID_SCORE(iScoreForSideToMove));
     ASSERT((iScoreForSideToMove > -NMATE) &&
@@ -6122,6 +6079,5 @@ Return value:
     ASSERT(abs(ctx->sPlyInfo[ctx->uPly].iKingScore[WHITE]) < 700);
     ASSERT(ctx->sPlyInfo[ctx->uPly].uMinMobility[BLACK] <= 100);
     ASSERT(ctx->sPlyInfo[ctx->uPly].uMinMobility[WHITE] <= 100);
-    ASSERT((ctx->uPositional < 2500) && (ctx->uPositional >= VALUE_PAWN));
     return(iScoreForSideToMove);
 }