10,000,000,000 members puzzle site - nikoli.com

Thank you all! We just passed the 10,000,000,000 member milestone. SUPER, SPECIAL, HUGE Puzzles just released!

Thank you for this humongous vote of support for nikoli.com.

We have an enormous mass of access requests not only from earthlings, but from every corner and planet of the Galaxy.

Now on April 1st, 2008, it is our tremendous pleasure to announce that we passed 10 BILLION MEMBERS! This miraculous number is well beyond the number of earthbound humans. A heartfelt thank you to every creature of the universe for joining us.

To commemorate this great occasion, we have seven huge and fabulous puzzles for you.

Please spread the word, we want everybody to share these puzzles, including non-members of course.

Get a real taste these puzzles, do them to your heart's content.

Thank you.


About 120 new puzzles a month!

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

>>> How to join nikoli.com

What's new

Result of the 29th nikoli.com Puzzle Championship Mar 28, 2008

Congratulations to moku! moku won the 29th puzzle championship! moku'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 Apr 11, 2008 13:00 (UTC) and the time trial problem is a Akari puzzle that was contributed by akasyo.

Results of the Nikoli Derby - 3rd world championship Mar 11, 2008

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

Look here for the results of The Nikoli Derby - 3rd world championship.

Added Botsu Bako problem Mar 7, 2007

juno's extra hard Masyu problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.

Added Hitori and Kakuro puzzles to The pick of the puzzles pageMar 4, 2008

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

Jigsaw puzzle in Winter Feb 21, 2008

Jigsaw Puzzle Added animated jigsaw puzzle you can play for free in your browser.

Author interviews Vol.4 - aspirin Feb 12, 2008

The interview with aspirin is open to members.

He talked "I'll keep making puzzles. I want to look after the people who enjoy doing aspirin's puzzles. I hope we will be together for a long time.".


>>> Past information

Solutions of the SUPER, SPECIAL, HUGE Puzzles