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Simplify MCP in QS

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Simplify moveCount pruning in QS by removing depth dependency.

STC
LLR: 2.94 (-2.94,2.94) {-1.25,0.25}
Total: 42960 W: 4741 L: 4661 D: 33558
Ptnml(0-2): 218, 3574, 13804, 3678, 206
https://tests.stockfishchess.org/tests/view/5f42e3f75089a564a10d8493

LTC
LLR: 2.94 (-2.94,2.94) {-0.75,0.25}
Total: 66672 W: 3563 L: 3508 D: 59601
Ptnml(0-2): 71, 3064, 26996, 3149, 56
https://tests.stockfishchess.org/tests/view/5f4353285089a564a10d84d0

closes https://github.com/official-stockfish/Stockfish/pull/3067

Bench: 4074430
This commit is contained in:
VoyagerOne 2020-08-25 09:10:47 -04:00 • committed by Joost VandeVondele
parent 95b8f3f800
commit 242a7d9fea
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@ -1526,7 +1526,7 @@ moves_loop: // When in check, search starts from here
assert(type_of(move) != ENPASSANT); // Due to !pos.advanced_pawn_push
// moveCount pruning
if (moveCount > abs(depth) + 2)
if (moveCount > 2)
continue;
futilityValue = futilityBase + PieceValue[EG][pos.piece_on(to_sq(move))];