A puzzle based on the aperiodic “hat” monotile found by David Smith, Joseph Samuel Myers, Craig S. Kaplan, and Chaim Goodman-Strauss.

I manufactured a small number of these puzzles for friends and family. If you have one, I hope you enjoy it!

UPDATE Nov 2, 2023: I manufactured a few more of these puzzles and put them up for sale at

Start by assembling the hexagonal border and then fill it in with the 56 tiles (7 of the tiles are mirror images of the other 49). The border and all of the tiles should be placed smooth side up.

The solution is available here: SPOILER ALERT

Learn more about the aperiodic “hat” monotile here:

Read about its discovery here:

Greg Whitehead, May 2023