Bored with brainteasers? Think sudoku is too easy?
KOTZU is a logic-based puzzle game that requires players to resolve a grid of symbols to derive a solution. The game is no as easy as it looks - in fact, it can be extremely difficult. If you're new to logic puzzles, KOTZU may be too difficult for you ... but if you are experienced and adept, our puzzles should provide an engaging challenge!
Membership is free ... but you must be invited (an invitation is sent to those who correctly solve one of the free puzzles).
If you feel you're up to the challenge, try your hand at our free puzzle.