Give extra stat bonus/malus in case of LMR for killers.
passed STC
http://tests.stockfishchess.org/tests/view/
5d2c8e760ebc5925cf0dcf23
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 67188 W: 15030 L: 14534 D: 37624
passed LTC
http://tests.stockfishchess.org/tests/view/
5d2d0ce40ebc5925cf0de115
LLR: 2.96 (-2.94,2.94) [0.00,3.50]
Total: 144355 W: 24739 L: 24153 D: 95463
Closes https://github.com/official-stockfish/Stockfish/pull/2246
bench
3723147
int bonus = value > alpha ? stat_bonus(newDepth)
: -stat_bonus(newDepth);
+ if (move == ss->killers[0])
+ bonus += bonus / 4;
+
update_continuation_histories(ss, movedPiece, to_sq(move), bonus);
}
}