Tuned nullmove search

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 57316d85613b955cc14d3daedaffabc0887bc62f..25a7cf44044780275be61204b56b0035fcf4250d 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -825,10 +825,10 @@ namespace {
     // Step 9. Null move search with verification search (~40 Elo)
     if (   !PvNode
         && (ss-1)->currentMove != MOVE_NULL
-        && (ss-1)->statScore < 23405
+        && (ss-1)->statScore < 23397
         &&  eval >= beta
         &&  eval >= ss->staticEval
-        &&  ss->staticEval >= beta - 32 * depth + 317 - improving * 30
+        &&  ss->staticEval >= beta - 32 * depth + 292 - improving * 30
         && !excludedMove
         &&  pos.non_pawn_material(us)
         && (ss->ply >= thisThread->nmpMinPly || us != thisThread->nmpColor))