About the future of nikoli.com

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About the future of nikoli.com

Thank you for your continued support and for enjoying the activities of nikoli.com. Thanks to your enthusiasm, nikoli.com has been able to continue for more than 11 years.
However, due to technical and administrative issues it is becoming increasingly impossible to be able to continue operating nikoli.com. For this reason we will discontinue membership services from Sep 10th, 2018. We will terminate all requests for membership fees from Aug 31st and we will publish the final puzzles on nikoli.com on Sep 10th, 2018. If you are still a member on Sep 10th, 2018, you will be able to log in until Mar 31st, 2019 and enjoy the puzzles published within the most recent 180 days as well as the puzzles in the "Botsu Bako" and "Pick of the puzzles" sections.


(addition at Aug 20, 2018)

As you already know, we will discontinue membership services from Sep 10th, 2018. 11 years and 9 months have passed since nikoli.com started on Dec 2006. Thanks to all members for us being able to achieve this long continuation. We are grateful to you. We really are sorry that we cannot keep it going on forever.

We have been considering future plans very carefully. We have taken many and various factors into account - trends, technical matters, budget, expenses, and much more.

We have now decided to try out a number of new things for digital media, and we will be publishing and presenting Nikoli puzzles in a number of different ways in the services succeeding nikoli.com.

First out, we will develop new puzzle applications for smartphones. That will be limited to only a few kinds of puzzles and with minimal functions. Our plans are then to add on to it and make it more complex so they can also be played on PCs in the future. We will keep you informed and let you know when it has been completed and it is ready.

Finally, a thank you to all of you: Thank you so much for having played nikoli.com for this long time. Words are not really adequate, but really thank you, thank you. And please continue to work with and pay attention to Nikoli puzzles.

Future schedule

mid Mar, 2019All puzzles in the "Problem List" will become unplayable.
Mar 31, 2019We will discontinue all functions of the current nikoli.com.

What's new

Sep 11, 2018We discontinued the membership services.
Sep 10, 2018We published the final puzzles.
Aug 28, 2018We canceled all subscriptions to nikoli.com on Paypal.
early Aug, 2018We asked all members to pay the last monthly fee.
Jan 10, 2018Date this page was made public.