3.6.3: support longer games (#312)

vshcherbyna · web-flow · commit bbc5c672d2f0 · 2025-06-04T19:33:16.000+01:00
Elo | 1.86 +- 2.56 (95%) SPRT | 10.0+0.10s Threads=1 Hash=8MB LLR | 2.95 (-2.94, 2.94) [-3.00, 1.00] Games | N: 19608 W: 5067 L: 4962 D: 9579 Penta | [119, 2173, 5124, 2260, 128] http://chess.grantnet.us/test/39442/ Elo | -3.17 +- 4.96 (95%) SPRT | 5.0+0.05s Threads=8 Hash=64MB LLR | -0.87 (-2.94, 2.94) [-3.00, 1.00] Games | N: 5146 W: 1302 L: 1349 D: 2495 Penta | [23, 635, 1302, 592, 21] http://chess.grantnet.us/test/39443/ bench: 1177845
diff --git a/src/position.h b/src/position.h
@@ -189,7 +189,7 @@ class Position
     int   m_ply;
     COLOR m_side;
 
-    enum { MAX_UNDO = 1024 };
+    enum { MAX_UNDO = 2048 };
     Undo m_undos[MAX_UNDO];
     int m_undoSize;
     bool m_initialPosition;
diff --git a/src/uci.cpp b/src/uci.cpp
@@ -31,7 +31,7 @@
 #include <iostream>
 #include <sstream>
 
-const std::string VERSION = "3.6.2";
+const std::string VERSION = "3.6.3";
 const std::string ARCHITECTURE = " 64 "
 
 #if _BTYPE==0
