Mustang's Opponent Cheated in Chess

as you all would have known by now, the thirteenth episode of Full Metal Alchemist: Brotherhood is out. while i can say it is a nice episode as always, there is a part of the story where Roy Mustang is seen playing chess.

this, of course is normal. up to the point where you notice that Roy has already captured to of both his opponents bishop and yet there is an extra one that remains on the board.







while it can be argued that in the second image, Roy has captured the bishop in the first image, the third one shows that it is obviously still there.

those who have some knowledge on chess would know that this is wrong. what is more is the fact that the opponent lost even with this extra advantage.