Introduce pawn structure based history

[stockfish] / src / thread.h

diff --git a/src/thread.h b/src/thread.h
index 5f33b7369d33cf7083b5c2fe75514c3a00023e45..37a4a6ca2bc6215448bab8634656d9d1f8a1d7ed 100644 (file)
--- a/src/thread.h
+++ b/src/thread.h
@@ -71,6 +71,7 @@ class Thread {
     ButterflyHistory      mainHistory;
     CapturePieceToHistory captureHistory;
     ContinuationHistory   continuationHistory[2][2];
+    PawnHistory           pawnHistory;
 };