From: Marco Costalba <mcostalba@gmail.com>
Date: Sat, 11 Sep 2010 21:33:01 +0000 (+0200)
Subject: Increase QueenContactCheckBonus
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=4143d00011307ba38baf126dc787b716d3552d83

Increase QueenContactCheckBonus

And also other check bonuses.

After 4272 games on russian cluster at 30"+0.1
Mod - Orig:  711 - 612 - 2949  ELO +8 (+- 4.2)

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index d791ed36..1c215dc0 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -199,9 +199,9 @@ namespace {
   const int KingAttackWeights[] = { 0, 0, 2, 2, 3, 5 };
 
   // Bonuses for enemy's safe checks
-  const int QueenContactCheckBonus = 3;
-  const int QueenCheckBonus        = 2;
-  const int RookCheckBonus         = 1;
+  const int QueenContactCheckBonus = 6;
+  const int QueenCheckBonus        = 3;
+  const int RookCheckBonus         = 2;
   const int BishopCheckBonus       = 1;
   const int KnightCheckBonus       = 1;