bench: 1514822

official-stockfish · Oct 16, 2024 · 02753f2 · 02753f2
1 parent 9766db8
commit 02753f2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/search.cpp b/src/search.cpp
@@ -1555,7 +1555,7 @@ Value Search::Worker::qsearch(Position& pos, Stack* ss, Value alpha, Value beta)
         if (bestValue >= beta)
         {
             if (std::abs(bestValue) < VALUE_TB_WIN_IN_MAX_PLY)
-                bestValue = (3 * bestValue + beta) / 4;
+                bestValue = (bestValue + beta) / 2;
             if (!ss->ttHit)
                 ttWriter.write(posKey, value_to_tt(bestValue, ss->ply), false, BOUND_LOWER,
                                DEPTH_UNSEARCHED, Move::none(), unadjustedStaticEval,