opelly/Stockfish
1
0
Fork 0
mirror of https://github.com/opelly27/Stockfish.git synced 2026-05-20 14:27:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Prune evasions when we can castle

Browse Source 
A minor simplification.

STC:

LLR: 2.95 (-2.94,2.94) [-3.50,0.50]
Total: 67877 W: 12882 L: 12904 D: 42091

STC:

LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 20677 W: 4023 L: 3901 D: 12753

LTC:

LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 12221 W: 2022 L: 1888 D: 8311

Bench: 7911336

Resolves #326
This commit is contained in:
lucasart
2015-04-04 08:00:15 +08:00
committed by Joona Kiiski
parent 2ca142a5b4
commit aaf17326e2
1 changed files with 1 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/search.cpp
+1 -2
View File
@@ -1302,8 +1302,7 @@ moves_loop: // When in check and at SpNode search starts from here
// Detect non-capture evasions that are candidates to be pruned // Detect non-capture evasions that are candidates to be pruned
evasionPrunable = InCheck evasionPrunable = InCheck
&& bestValue > VALUE_MATED_IN_MAX_PLY && bestValue > VALUE_MATED_IN_MAX_PLY
&& !pos.capture(move) && !pos.capture(move);
&& !pos.can_castle(pos.side_to_move());
// Don't search moves with negative SEE values // Don't search moves with negative SEE values
if ( (!InCheck || evasionPrunable) if ( (!InCheck || evasionPrunable)