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.
Result of the 212th nikoli.com Puzzle Championship Apr 18, 2015
Congratulations! KONNOYU won the 212th puzzle championship! The winner's name is now displayed and will remain on the Champion page of nikoli.com Hall of Fame.
The next puzzle championship will be held from Fri. May 1, 2015 13:00 (UTC). The time trial problem will be a Nurikabe puzzle contributed by -4.
Maintenance finished Apr 17, 2015
About 10 minutes after 05:00 Apr 17, 2015(UTC).
Due to scheduled maintenance, you could not access to the nikoli.com. Sorry for the inconvenience.
Author round-table Vol.23Apr 15, 2015
Added Botsu Bako problem Apr 7, 2015
nyoroppyi's Heyawake problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.
Added Slitherlink, Yajilin and Norinori puzzles to The pick of the puzzles page Apr 2, 2015
Most popular Slitherlink, Yajilin and Norinori puzzles are available to members. Play them in the members area, in The pick of the puzzles page.
2015's April Fools' pageApr 2, 2015
2015's April Fools' page can be seen here. "Champion's arm" complete and ready for use.
Results of the Nikoli Derby - 14th world championship Mar 24, 2015
The Nikoli Derby was developed by nikoli as a party game.
Look here for the results of The Nikoli Derby - 14th world championship.
We hope you are one of the winners!
Added Akari and Hashiwokakero puzzles to The pick of the puzzles page Feb 3, 2015
Most popular Akari and Hashiwokakero puzzles are available to members. Play them in the members area, in The pick of the puzzles page.