Clear history table on ucinewgame

src/interface/uci.rs

@@ -237,6 +237,7 @@ pub fn uci_loop() -> anyhow::Result<()> {
             Command::UciNewGame => {
                 if let Some(game) = params.game.as_mut() {
                     game.tt = TranspositionTable::new();
+                    game.history_heuristic = [[[0; 64]; 64]; 2];
                     game.board = Board::startpos();
                 } else {
                     let game = Game::new();