What kind of chess board do you play on? Lol~ Anyways, I liked the use of procedural generation here (the title screen, levels, and songs, I assume), and overall I had a lot of fun playing this. Here's my playthrough: youtube
64 1x1 squares, there are also 2x2 squares, 3x3 up to the largest which is a 8x8 square.
Ah its squares of all sizes not just the 64 1x1 ones.
Thanks a lot for playing my game! I'm surprised you made it to the penultimate level without using the invisibility function at all . That's great !