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About 130 new puzzles a month!

Members of nikoli.com can enjoy new puzzles everyday at your own exclusive page.

No payment is necessary for the first month by credit card. A perfect chance to enjoy and get to know nikoli.com.

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What's new

195th Puzzle Championship Aug 22, 2014

Puzzle Championship nikoli.com holds 195th puzzle championships on our members page on Sun. Aug 24, 2014 13:00 (UTC). The first correct solution is the winner. Start right away and hurry, race, dash to solve it and submit it immediately!

Maintenance finished Aug 22, 2014

About 60 minutes after 05:00 Aug 22, 2014(UTC).

Due to scheduled maintenance, you could not access to the nikoli.com. Sorry for the inconvenience.

Author interviews Vol.40Aug 8, 2014

Our guest this time is alkaline. He is the father of one child and now in his late thirties. He is living in Sapporo, and uses the pseudonym 'alkaline factory head' in Nikoli books. His job is as a company employee related to IT.

Added Akari and Hashiwokakero puzzles to The pick of the puzzles page Aug 1, 2014

Most popular Akari and Hashiwokakero puzzles are available to members. Play them in the members area, in The pick of the puzzles page.

Results of the Nikoli Derby - 13th world championship Jul 17, 2014

The Nikoli Derby was developed by nikoli as a party game.

Look here for the results of The Nikoli Derby - 13th world championship.

We hope you are one of the winners!

Added Botsu Bako problem Jul 14, 2014

aspirin's Yajilin problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.


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