}
else
{
- ss->staticEval = eval =
- (ss-1)->currentMove != MOVE_NULL ? evaluate(pos) - 10 * ((ss-1)->statScore > 0)
- : -(ss-1)->staticEval + 2 * Eval::Tempo;
+ int p = (ss-1)->statScore;
+ int malus = p > 0 ? (p + 5000) / 1024 :
+ p < 0 ? (p - 5000) / 1024 : 0;
- tte->save(posKey, VALUE_NONE, BOUND_NONE, DEPTH_NONE, MOVE_NONE,
- ss->staticEval);
+ ss->staticEval = eval = (ss-1)->currentMove != MOVE_NULL ? evaluate(pos) - malus
+ : -(ss-1)->staticEval + 2 * Eval::Tempo;
+
+ tte->save(posKey, VALUE_NONE, BOUND_NONE, DEPTH_NONE, MOVE_NONE, ss->staticEval);
}
// Step 7. Razoring (~2 Elo)