-int History::move_ordering_score(Piece p, Move m) const {
- assert(piece_is_ok(p));
- assert(move_is_ok(m));
-
- return history[p][move_to(m)];
-}
-
-
-/// History::ok_to_prune() decides whether a move has been sufficiently
-/// unsuccessful that it makes sense to prune it entirely.