Re-add "Further increase safe checks bonus"

After 40K games at 60 secs, result is still
not clear, but not a regression against SF 4

After
ELO: 50.11 +-2.1 (95%) LOS: 100.0%
Total: 40000 W: 10547 L: 4817 D: 24636

Before
ELO: 49.51 +-2.1 (95%) LOS: 100.0%
Total: 40000 W: 10483 L: 4821 D: 24696

So re-apply the patch to avoid to
special-case this one.

bench: 7403882

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index f3586f9632a614cf8b3419a204972240e855a875..787004b4e7ac59b65f20b8764dae93358aaa5274 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -200,12 +200,12 @@ namespace {
   const int KingAttackWeights[] = { 0, 0, 2, 2, 3, 5 };
 
   // Bonuses for enemy's safe checks
   const int KingAttackWeights[] = { 0, 0, 2, 2, 3, 5 };
 
   // Bonuses for enemy's safe checks

-  const int QueenContactCheck = 12;
-  const int RookContactCheck  = 8;
-  const int QueenCheck        = 6;
-  const int RookCheck         = 4;
-  const int BishopCheck       = 1;
-  const int KnightCheck       = 2;
+  const int QueenContactCheck = 24;
+  const int RookContactCheck  = 16;
+  const int QueenCheck        = 12;
+  const int RookCheck         = 8;
+  const int BishopCheck       = 2;
+  const int KnightCheck       = 3;

 
   // KingExposed[Square] contains penalties based on the position of the
   // defending king, indexed by king's square (from white's point of view).
 
   // KingExposed[Square] contains penalties based on the position of the
   // defending king, indexed by king's square (from white's point of view).