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Simplify Castle Extension

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Remove depth condition in castle extension, also don't extend if
Singular Extension and Check Extansion fail to extend.

STC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 42070 W: 9118 L: 9036 D: 23916
http://tests.stockfishchess.org/tests/view/5be899cc0ebc595e0ae32f07

LTC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 78278 W: 12490 L: 12458 D: 53330
http://tests.stockfishchess.org/tests/view/5be8ac420ebc595e0ae33010

Bench: 3611041
This commit is contained in:
VoyagerOne
2018-11-19 10:27:52 +01:00
committed by Stéphane Nicolet
parent 0e508f30bb
commit 4111f36f45
2 changed files with 3 additions and 4 deletions
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1
src/evaluate.cpp
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@@ -257,6 +257,7 @@ namespace {
attackedBy[Us][PAWN] = pe->pawn_attacks(Us);
attackedBy[Us][ALL_PIECES] = attackedBy[Us][KING] | attackedBy[Us][PAWN];
attackedBy2[Us] = attackedBy[Us][KING] & attackedBy[Us][PAWN];
kingRing[Us] = kingAttackersCount[Them] = 0;
// Init our king safety tables only if we are going to use them