About 125 new puzzles a month!
Members of nikoli.com can enjoy new puzzles everyday at your own exclusive page.
What's new
Added Botsu Bako problem May 17, 2012
T.Karino's Masyu problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.
14th puzzle of nikoli.com is ShakashakaMay 15, 2012
nikoli.com will start publishing Shakashaka puzzles in our members area from June. Try out the sample puzzles of Shakashaka to get to know this wonderful puzzle.
In Shakashaka you place black triangles in the white squares of the grid. The remaining white parts of the grid must form rectangles or squares.
Announcement of the maintenance work May 14, 2012
from Fri, May. 18th 05:00(UTC), about 2 hours
You will not able to get access to the nikoli.com during this time. Sorry for the inconvenience.
Result of the 135th nikoli.com Puzzle Championship May 6, 2012
Congratulations! moka36 won the 135th 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 Sun. May 20, 2012 13:00 (UTC) and the time trial problem will be a Yajilin puzzle contributed by Pencil Rocket.
Added Nurikabe and Numberlink puzzles to The pick of the puzzles page May 2, 2012
Most popular Nurikabe and Numberlink puzzles are available to members. Play them in the members area, in The pick of the puzzles page.
Author interviews Vol.32May 1, 2012
Our guest this time is Turing-Joe Jr.. He is in the bachelorship of the late twenties. His occupation is an editor of a publishing company.
Akari Week!Apr 25, 2012
We are going to release an Akari puzzle every day from Apr 30 to May 6. All the Akari puzzles except that on Apr 30 will be large. A perfect chance to enjoy the logial complex world of Akari!
