value = -search<NonPV>(pos, ss+1, -(alpha+1), -alpha, newDepth + doDeeperSearch, !cutNode);
int bonus = value > alpha ? stat_bonus(newDepth)
value = -search<NonPV>(pos, ss+1, -(alpha+1), -alpha, newDepth + doDeeperSearch, !cutNode);
int bonus = value > alpha ? stat_bonus(newDepth)