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Registration of new membership

We will stop the registration of new membership at Aug 27(JST) because we will discontinue membership services from Sep 10.

Result of the 299th nikoli.com Puzzle Championship Aug 17, 2018

Congratulations! volxa won the 299th 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 is the last championship. It will be held twice a day, Fri. Sep 7, 2018 03:30 and 13:00 (UTC). You have the right to win in each championship. nyoroppyi's Akari and Guten's Slitherlink are waiting for your challenge.

Maintenance finished Aug 17, 2018

About 10 minutes after 05:00 Aug 17, 2018(UTC).

Due to scheduled maintenance, you could not access to the nikoli.com. Sorry for the inconvenience.

Added Akari and Hashiwokakero puzzles to The pick of the puzzles page Aug 1, 2018

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

We will have summer vacation from Aug 10th to Aug 15th Aug 1, 2018

Our office will be closed, so your inquiry to nikoli.com during in this term will be respond after Aug 16th. Please kindly understand and we are sorry for our inconvenience.

Sorry for the access failure (everybody's pages)Jul 20, 2018

We are sorry. You were hard to get access to the nikoli.com everybody's pages from Jun 19th(UTC) to Jul 11th(UTC) because of the network disturbance by the server managing company.

* You could access the Members' page.

The Nikoli Derby - 18th world championship Jul 18, 2018

The Nikoli Derby - 18th world championship Please join nikoli original easygoing party game The Nikoli Derby. The winners will receive an original Nikoli T-shirt. This is the last race on nikoli.com. We wish you good luck!

Added Botsu Bako problem Feb 16, 2018

bay wolf Jr's Hashiwokakero problem is open to members. Try it out on the Botsu Bako (Extra Special Problems) page in the members area.

About future of nikoli.com Jan 10, 2018

We published a page about future of nikoli.com. Please check this page.

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