Further tweak movecount pruning

Passed both short TC LLR: 2.95 (-2.94,2.94) Total: 15140 W: 3125 L: 2976 D: 9039 And long TC LLR: 2.95 (-2.94,2.94) Total: 17118 W: 3165 L: 2974 D: 10979 bench: 4132374
official-stockfish · Aug 18, 2013 · 91c2c44 · 91c2c44
1 parent 27e9fc1
commit 91c2c44
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/src/search.cpp b/src/search.cpp
@@ -153,9 +153,8 @@ void Search::init() {
  // Init futility move count array
  for (d = 0; d < 32; d++)
  {
- FutilityMoveCounts[1][d] = int(3.001 + 0.3 * pow(double(d), 1.8));
- FutilityMoveCounts[0][d] = d < 5 ? FutilityMoveCounts[1][d]
- : 3 * FutilityMoveCounts[1][d] / 4;
+ FutilityMoveCounts[0][d] = int(3.001 + 0.3 * pow(double(d ), 1.8)) * (d < 5 ? 4 : 3) / 4;
+ FutilityMoveCounts[1][d] = int(3.001 + 0.3 * pow(double(d + 0.98), 1.8));
  }
 }