Can you figure out how this works?
[am4show have=’p8;p9;p11;p38;p92;’ guest_error=’Guest error message’ user_error=’User error message’ ]
The missing square is very simple, and it quickly catches your attention no matter how old you are or how much math education you’ve had. Can you put the small square in the four large pieces? This is the paradox of Mitsunobu Matsuyama.
You can get a wooden version here.
[/am4show]