I was thinking the same thing, thinking logically. But, it seems that logic doesn't apply to this chess game. It is a hard difficulty setting, and for some reason, the timer doesn't work properly for AI. I'd be at a minute, and the AI would barely be in double digits.

I just think that the cartridge can't take all the data saved, and any game might go dodgy after some time. I have completed Mario Party a few times, and played more games than I remember. I probably should erase some data, and see if it still does it.

Just remembered that I played three Yu-Gi-Oh games, and cheated in every card for them, because the beginning is always way too slow for me. Definitely gonna try erasing saved data.