diff --git a/www/js/game.js b/www/js/game.js
index be64e80..54d0328 100644
--- a/www/js/game.js
+++ b/www/js/game.js
@@ -25,7 +25,7 @@ GAME.Board = class {
         let board = new GAME.Board();
         for(let i = 0; i < this.tiles.length; ++i) { board.tiles[i] = this.tiles[i].clone(); }
 
-        for(let i = 0; i < this.pieces.length; ++i) { this.pieces.push(null); }
+        for(let i = 0; i < this.pieces.length; ++i) { board.pieces.push(null); }
         for(let i = 0; i < this.pieces.length; ++i) {
             if(this.pieces[i] !== null) {
                 board.pieces[i] = this.pieces[i].clone();
diff --git a/www/js/interface.js b/www/js/interface.js
index b8025dc..6c9d9c1 100644
--- a/www/js/interface.js
+++ b/www/js/interface.js
@@ -354,7 +354,7 @@ const INTERFACE = {
 
         INTERFACE.game_step();
 
-        if(!event.ctrlKey) {
+        if(event.preventDefault !== undefined && !event.ctrlKey) {
             event.preventDefault();
         }
     },
@@ -1773,7 +1773,7 @@ const INTERFACE = {
     },
 
     auto_play() {
-        let bit = 1 << ((GAME_DATA.turn + GAME_DATA.config.rules.reverse) & 1);
+        let bit = 1 << (GAME_DATA.turn & 1);
         if((INTERFACE_DATA.Game.auto & bit) == 0 || GAME_DATA.state.checkmate) { return; }
 
         function state_score(state, player) {
@@ -1920,7 +1920,7 @@ const INTERFACE = {
             return null;
         }
 
-        let result = determine_play(GAME_DATA, (GAME_DATA.turn + GAME_DATA.config.rules.reverse) & 1, 1);
+        let result = determine_play(GAME_DATA, GAME_DATA.turn & 1, 1);
         if(result !== null) {
             INTERFACE.process(result.play);
         } else {