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Two Chess Puzzles You Solve With Your Hands
A chess puzzle usually means a diagram and a tactic. These two are objects on your desk, where the pieces move by chess rules and the real problem is that...
Two Chess Puzzles You Solve With Your Hands
A chess puzzle usually means a diagram and a tactic. These two are objects on your desk, where the pieces move by chess rules and the real problem is that...
How to Solve the Three-Piece Block
Ten cubes in three pieces, and a target you can picture perfectly. The Three-Piece Block still takes most people an hour, and the reason is the grid you are assuming.
How to Solve the Three-Piece Block
Ten cubes in three pieces, and a target you can picture perfectly. The Three-Piece Block still takes most people an hour, and the reason is the grid you are assuming.
Osanori Yamamoto and the Apparent Cube
Osanori Yamamoto builds cubes that are not there. Solved, you see a solid block; apart, two small pieces and a lot of empty air. A guide to the apparent cube.
Osanori Yamamoto and the Apparent Cube
Osanori Yamamoto builds cubes that are not there. Solved, you see a solid block; apart, two small pieces and a lot of empty air. A guide to the apparent cube.
Interlocking Puzzle Notation: What Level Actual...
Twelve pieces sounds harder than two. It usually is not. Here is what puzzlers actually mean by level, and why the number on the box is not the number that...
Interlocking Puzzle Notation: What Level Actual...
Twelve pieces sounds harder than two. It usually is not. Here is what puzzlers actually mean by level, and why the number on the box is not the number that...
The Impossible Dovetail: A Joint That Should No...
Dovetails on two faces at once, running in directions that contradict each other. To slide it apart you would have to move it two ways at the same time -...
The Impossible Dovetail: A Joint That Should No...
Dovetails on two faces at once, running in directions that contradict each other. To slide it apart you would have to move it two ways at the same time -...
How to Solve the Key and Keyway Cube
Eight small cubes, a screw on some faces and a keyhole slot on others. The join is easy. Working out which eight of the many possible pairings is the one...
How to Solve the Key and Keyway Cube
Eight small cubes, a screw on some faces and a keyhole slot on others. The join is easy. Working out which eight of the many possible pairings is the one...