Revert evaluation drift

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index acd5d1da4ef7793f7ba02668b5907c2a461ff75e..0c9f1ee703ef3dd188710826d2c7e2d3713c9354 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1540,10 +1540,10 @@ namespace {
         // Use the cached evaluation score if possible
         assert(ei.futilityMargin == Value(0));
 
-        staticValue = tte->value() + ply;
+        staticValue = tte->value();
     }
     else
-        staticValue = evaluate(pos, ei, threadID) + ply;
+        staticValue = evaluate(pos, ei, threadID);
 
     if (ply == PLY_MAX - 1)
         return evaluate(pos, ei, threadID);
@@ -2182,7 +2182,7 @@ namespace {
 
     // Case 4: The destination square for m2 is attacked by the moving piece in m1
     p = pos.piece_on(t1);
-    if (bit_is_set(pos.piece_attacks(p, t1), t2))
+    if (bit_is_set(pos.attacks_from(p, t1), t2))
         return true;
 
     // Case 5: Discovered check, checking piece is the piece moved in m1