Here is a sample puzzle for you to try your skill. In order to become a member and have access to all our puzzles, you must solve one of the free puzzles. A new puzzle will be posted each week.
A printer-friendly version is available to solve offline - but since puzzles are only posted for one week, you should check your print-out against the current puzzle above before submitting a solution.
Use the form below to submit your solution to the free puzzle. You will receive an e-mail indicating whether your solution is correct and, if you correctly solve a puzzle, you will receive a validation code to become a KOTZU member.
To discourage cheaters from submitting every possible combination instead of legitimately solving the puzzle, an e-mail address is requested and users are restricted to one guess per day. Certain IP addresses are blocked because individuals have attempted using multiple e-mail accounts to circumvent that restriction.
* An e-mail address is required to attempt the free puzzle (you will receive a message indicating whether your solution is correct).
We do not provide solutions to the puzzles - we will only confirm that the solution you have discovered is correct or incorrect. If you just can't figure it out and are desperate for a hint, we won't do that, either, aside from the instructions on the how to play page.
Simply stated, you'll just have to knuckle down and solve it, or have the moral fiber to accept that you're not up to the challenge.