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Tweak kingFlankAttacks factor in kingDanger

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Increase kingFlankAttacks factor in kingDanger from 5/16 to 6/16.

Failed STC:
LLR: -2.96 (-2.94,2.94) [0.00,4.00]
Total: 77947 W: 16989 L: 16848 D: 44110
http://tests.stockfishchess.org/tests/view/5d9ac0280ebc5902b6cf63cd

Passed LTC 1:
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 13443 W: 2231 L: 2037 D: 9175
http://tests.stockfishchess.org/tests/view/5d9ac88d0ebc5902b6cf6ffb

Passed LTC 2:
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 23340 W: 3842 L: 3617 D: 15881
http://tests.stockfishchess.org/tests/view/5d9acf7f0ebc5902b6cf7c27

Closes https://github.com/official-stockfish/Stockfish/pull/2349

Bench: 4042155
This commit is contained in:
SFisGOD 2019-10-07 12:30:57 +08:00 • committed by Stéphane Nicolet
parent 7264540107
commit 0b0b21c608
1 changed files with 1 additions and 1 deletions
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2
src/evaluate.cpp
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@ -457,7 +457,7 @@ namespace {
- 873 * !pos.count<QUEEN>(Them)
- 6 * mg_value(score) / 8
+ mg_value(mobility[Them] - mobility[Us])
+ 5 * kingFlankAttacks * kingFlankAttacks / 16
+ 3 * kingFlankAttacks * kingFlankAttacks / 8
- 7;
// Transform the kingDanger units into a Score, and subtract it from the evaluation