Result of the 245th nikoli.com Puzzle Championship Jul 22, 2016
Congratulations! bf81 won the 245th 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. Aug 5, 2016 00:00 (UTC). The time trial problem will be a Shikaku puzzle contributed by -4.
Added Botsu Bako problem Jul 17, 2016
T.Karino's Slitherlink problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.
Maintenance finished Jul 15, 2016
About 2 hours after 05:00 Jul 15, 2016(UTC).
Due to scheduled maintenance, you could not access to the nikoli.com. Sorry for the inconvenience.
Added Heyawake and Masyu puzzles to The pick of the puzzles page Jul 1, 2016
Most popular Heyawake and Masyu puzzles are available to members. Play them in the members area, in The pick of the puzzles page.