This is a variant on George Bell's hide the worm puzzle. The unique solution has no symmetry, and preserves the thematic piece placement. The puzzl...

This is a second variant of George Bell's Hide the Worm puzzle. It has a unique solution, and also keeps the thematic placement. The puzzle is to p...

This puzzle has six pieces in the same sort of arrangement as the traditional burr, but with different shapes. It has the interesting property that...

An elegant puzzle whose simple-looking pieces belie its high degree of difficulty. The goal is to get all four pieces into the cage, thus forming a...

This is an elegant board burr which despite its simplicity requires 8 moves to remove the first piece, and unlike the vast majority of board burrs ...

This is an extremely simple but surprisingly difficult burr consisting of three identical pieces.Puzzle is 2cm long in the solved state

This puzzle consists of four identical pieces. It feels very 'loose' normally, like it's held together very holistically, but until you figure out ...

This is a custom bottom bracket for the Hario Skerton Coffee Burr Grinder (same as Kyocera CM-50) designed using Tinkercad. Here's a little Vine to...

This is a straggly piece which looks like it couldn't possibly pack densely but it does in a very interesting way. The puzzle is to fit all 24 iden...

Impossiburr is an impossible object, that is also a puzzle. Six pieces go together to form this Esher-style triangle. Watch the YouTube video. Pl...