Dungeon Dice Monsters: Part 4 - S1-E49
Continuity mistake: After the duel, Devlin apologises to Yugi for accusing him of cheating. The first shot shows a game board on a table, which features black squares and includes thin white lines separating the squares. Then it cuts to a wide shot of the room, and the white lines now appear to cover most of the game board. (00:17:40)