TripleCross

TripleCross This puzzle is like a crossword, but uses numbers on a hexagonal grid. "Words" can go across, up, and down.

Cube

Cube This puzzle is three-dimensional where "words" can go in X, Y, and Z directions.

Box

Box This puzzle is three-dimensional with non-uniform sizes. "Words" can go in X, Y, and Z directions.

CrossFigure

CrossFigure This puzzle is like a crossword, but uses numbers instead of letters. "Words" can go across and down.

Pyramid

Pyramid This puzzle is hard! It is three-dimensional and does not have a good two-dimensional representation. It will challenge your visualization skills!

Logo

Logo The logo for this site is also a puzzle!

Playing With Primes

Playing With Primes This is a CrossFigure puzzle where all the "words" are prime numbers.

Playing With Squares

Playing With Squares This is a CrossFigure puzzle where all the "words" are squares.