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291st Puzzle Championship Apr 26, 2018

Puzzle Championship nikoli.com holds the 291st puzzle championships on our members page on Fri. Apr 27, 2018 03:30 (UTC). The first correct solution is the winner. Start right away and hurry, race, dash to solve it and submit it immediately!

Maintenance finished Apr 18, 2018

About 15 minutes after 05:00 Apr 18, 2018(UTC).

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

Added Slitherlink, Yajilin and Norinori puzzles to The pick of the puzzles page Apr 2, 2018

Most popular Slitherlink, Yajilin and Norinori puzzles are available to members. Play them in the members area, in The pick of the puzzles page.

2018's April Fools' page Apr 2, 2018

2018's April Fools' page can be seen here. History of nikoli.com.

Added Botsu Bako problem Feb 16, 2018

bay wolf Jr's Hashiwokakero problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.

About future of nikoli.com Jan 10, 2018

We published a page about future of nikoli.com. Please check this page.


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