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Refine ranks and increase resulting bonus.

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STC:
LLR: 2.94 (-2.94,2.94) [0.00,4.00]
Total: 272379 W: 51773 L: 50658 D: 169948

LTC:
LLR: 3.06 (-2.94,2.94) [0.00,4.00]
Total: 41504 W: 6555 L: 6273 D: 28676

bench: 7658406

Resolves #430
This commit is contained in:
Jonathan Calovski 2015-09-19 08:28:26 +10:00 • committed by Joona Kiiski
parent 68fbb1e052
commit 77b4f4c2e7
1 changed files with 3 additions and 2 deletions
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5
src/evaluate.cpp
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@ -144,8 +144,8 @@ namespace {
// Outpost[knight/bishop][supported by pawn] contains bonuses for knights and
// bishops outposts, bigger if outpost piece is supported by a pawn.
const Score Outpost[][2] = {
{ S(28, 7), S(42,11) }, // Knights
{ S(12, 3), S(18, 5) } // Bishops
{ S(42,11), S(63,17) }, // Knights
{ S(18, 5), S(27, 8) } // Bishops
};
// Threat[defended/weak][minor/major attacking][attacked PieceType] contains
@ -296,6 +296,7 @@ namespace {
{
// Bonus for outpost square
if ( relative_rank(Us, s) >= RANK_4
&& relative_rank(Us, s) <= RANK_6
&& !(pos.pieces(Them, PAWN) & pawn_attack_span(Us, s)))
score += Outpost[Pt == BISHOP][!!(ei.attackedBy[Us][PAWN] & s)];