Sudoku
Sudoku is a logic-based, combinatorial number-placement puzzle. It does not require any maths, but rather application of a few simple rules and logical deduction. The puzzle was introduced as Sūji wa dokushin ni kagiru. The sudoku is great fun for all ages, while the smaller sudoku puzzles on a 4 x 4 mini-grid are ideal for the age range 4 - 7.

Logic Puzzles
Logic puzzles and brain teasers are created to challenge your mind and provide hours of fun.

Flat Rybic Puzzle
The Flat Rybi is a two dimentional puzzle created by PuzzleMystery.com. For the puzzle to be solved, each row must be a solid colour.