HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-19 00:26:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Combination of two ideas:

Browse Source 
Apply bonus for the prior CMH that caused a fail low.

Balance Stats: CMH and History bonuses are updated differently.
This eliminates the "fudge" factor weight when scoring moves. Also
eliminated discontinuity in the gravity history stat formula. (i.e. stat
scores will no longer inverse when depth exceeds 22)

STC:
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 21802 W: 4107 L: 3887 D: 13808

LTC:
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 46036 W: 7046 L: 6756 D: 32234

Bench: 7677367
This commit is contained in:
VoyagerOne
2015-10-12 14:00:54 -07:00
committed by Gary Linscott
parent 55b46ffa90
commit 8fd34d7763
3 changed files with 33 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/movepick.cpp
View File

@@ -146,7 +146,7 @@ void MovePicker::score<QUIETS>() {
for (auto& m : *this)
m.value = history[pos.moved_piece(m)][to_sq(m)]
+ cmh[pos.moved_piece(m)][to_sq(m)] * 3;
+ cmh[pos.moved_piece(m)][to_sq(m)];
}
template<>