STC:
LLR: 2.95 (-2.94,2.94) <0.00,2.50>
Total: 73760 W: 19590 L: 19244 D: 34926
Ptnml(0-2): 285, 8352, 19292, 8634, 317
https://tests.stockfishchess.org/tests/view/
626eb2dc9116b52aa83b73da
LTC:
LLR: 2.93 (-2.94,2.94) <0.50,3.00>
Total: 114400 W: 30561 L: 30111 D: 53728
Ptnml(0-2): 68, 11432, 33785, 11812, 103
https://tests.stockfishchess.org/tests/view/
626f730859e9c431e0b10b21
closes https://github.com/official-stockfish/Stockfish/pull/4008
bench:
6174823
update_pv(ss->pv, move, (ss+1)->pv);
if (PvNode && value < beta) // Update alpha! Always alpha < beta
+ {
alpha = value;
+
+ // Reduce other moves if we have found at least one score improvement
+ if ( depth > 2
+ && depth < 7
+ && beta < VALUE_KNOWN_WIN
+ && alpha > -VALUE_KNOWN_WIN)
+ depth -= 1;
+
+ assert(depth > 0);
+ }
else
{
ss->cutoffCnt++;