Result of the 258th nikoli.com Puzzle Championship Jan 20, 2017
Congratulations! nyoroppyi won the 258th 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. Feb 3, 2017 13:00 (UTC). The time trial problem will be a Kakuro puzzle contributed by the ax and sword.
Maintenance finished Jan 20, 2017
About 10 minutes after 05:00 Jan 20, 2017(UTC).
Due to scheduled maintenance, you could not access to the nikoli.com. Sorry for the inconvenience.
Entry to The Nikoli Derby was closed Jan 20, 2017
We will announce the ranking of all participants of the 16th Nikoli Derby on Mon. Jan 30th.
Added Heyawake and Masyu puzzles to The pick of the puzzles page Jan 5, 2016
Most popular Heyawake and Masyu puzzles are available to members. Play them in the members area, in The pick of the puzzles page.
Added Botsu Bako problem Dec 16, 2016
the ax and sword's Shakashaka problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.