About 120 new puzzles a month!
Members of nikoli.com can enjoy new puzzles everyday at your own exclusive page.
What's new
Result of the 78th nikoli.com Puzzle Championship Feb 5, 2010
Congratulations to Ziti! Ziti won the 78th puzzle championship! Ziti'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. Feb 19, 2010 13:00 (UTC) and the time trial problem is a Hitori puzzle that was contributed by 45.
Added Akari and Hashiwokakero puzzles to The pick of the puzzles page Feb 2, 2010
Most popular Akari and Hashiwokakero puzzles are available to members. Play them in the members area, in The pick of the puzzles page.
Author interviews Vol.12Jan 25, 2010
Ogawa Minori is a 30-something bachelor. His day job is as a salaried employee. Where he works, he is in charge of accounting.
The Nikoli Derby - 7th world championship Jan 25, 2010
Please join nikoli original easygoing party game The Nikoli Derby. The winners will receive an original Nikoli T-shirt or the latest volume of "Puzzle Communication Nikoli".
Added Botsu Bako problem Jan 17, 2010
SAKAMOTO, Nobuyuki's Medium Nurikabe problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.
Giant Puzzle Week! Dec 2, 2009
Dec 10 (JST [Dec 9 15:00 UTC]) celebrates the 3rd anniversary of nikoli.com. We have been running the site supported by pencil puzzle lovers from around the world, a big thank you to all of you for three exciting years.
nikoli.com wishes to express our gratitude to you all for your support. To celebrate, we will publish giant puzzles in the members area on 7 consecutive days from Dec 10. We hope you will enjoy them!
iPhone/iPod touch application released Nov 4, 2009
Nikoli has now made Akari applications for the iPhone/iPod touch. We have released a free edition and three regular editions (#1, #2 and #3) at the App Store. If you have iPhone or iPod touch, please try it out.
Results of the 4th Minority Decides Game Oct 28, 2009
The Minority Decides is a nikoli original easygoing party game.
Look here for the results of the 4th Minority Decides Game.
