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.
Author round-table Vol.20Jul 22, 2014
Today our theme is Ripple Effect. It's a comparatively new puzzle. There hasn't been a lot of talk about Ripple Effect. What kind of a story can we expect to hear here? The guests are Turing-Joe Jr. and T. Karino. From Nikoli we have Nob and NyanBaz.
Maintenance finished Jul 18, 2014
About 15 minutes after 05:00 Jul 18, 2014(UTC).
Due to scheduled maintenance, you could not access to the nikoli.com. Sorry for the inconvenience.
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.
Result of the 192nd nikoli.com Puzzle Championship Jul 12, 2014
Congratulations! hrs won the 192nd 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 Sat. Jul 26, 2014 01:00 (UTC). Please note the start time. The time trial problem will be a Yajilin puzzle contributed by T.Karino.
Added Heyawake and Masyu puzzles to The pick of the puzzles page Jul 1, 2014
Most popular Heyawake and Masyu puzzles are available to members. Play them in the members area, in The pick of the puzzles page.