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Less king danger if we have a knight near by to defend it. (#1987)

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bench: 3653942
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mstembera 2019-02-03 05:16:34 -08:00 • committed by Marco Costalba
parent 9050eac595
commit 6514500236
1 changed files with 2 additions and 1 deletions
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3
src/evaluate.cpp
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@ -482,12 +482,13 @@ namespace {
kingDanger += kingAttackersCount[Them] * kingAttackersWeight[Them] kingDanger += kingAttackersCount[Them] * kingAttackersWeight[Them]
+ 69 * kingAttacksCount[Them] + 69 * kingAttacksCount[Them]
+ 185 * popcount(kingRing[Us] & weak) + 185 * popcount(kingRing[Us] & weak)
- 100 * bool(attackedBy[Us][KNIGHT] & attackedBy[Us][KING])
+ 150 * popcount(pos.blockers_for_king(Us) | unsafeChecks) + 150 * popcount(pos.blockers_for_king(Us) | unsafeChecks)
+ 5 * tropism * tropism / 16 + 5 * tropism * tropism / 16
- 873 * !pos.count<QUEEN>(Them) - 873 * !pos.count<QUEEN>(Them)
- 6 * mg_value(score) / 8 - 6 * mg_value(score) / 8
+ mg_value(mobility[Them] - mobility[Us]) + mg_value(mobility[Them] - mobility[Us])
- 30; - 25;
// Transform the kingDanger units into a Score, and subtract it from the evaluation // Transform the kingDanger units into a Score, and subtract it from the evaluation
if (kingDanger > 0) if (kingDanger > 0)