2006-2007

    nikoli.com started on Dec 10, 2006.
    We highly recommended cat milk, it contains plenty of proteins and nutrition.

    2008

    We just passed the 10,000,000,000 member milestone. SUPER, SPECIAL, HUGE Puzzles just released.

    2009

    We had to run on a tighter budget due to business deterioration. As a start, we reduced the number of colors of the website.

    2010

    We developed Enezzle, new electricity generating method that converts the feeling of pleasure and excitement when solving puzzles into electric energy.

    2011

    We started to publish new puzzles, multiplication problems. Five problems random selected from 64 problems will appear.

    2X12

    The Ancient Puzzles Research Commission of Kuramae (APRCK) unearthed a hoard of mysterious slates under the village ruins of NI-KO-LI (Taito-ku, Tokyo). The slates were identified as Numberlink and Hitori puzzles.

    2X13

    We have succeeded in developing puzzles that can use our brains efficiently, consume much energy, and get us wonderfully slim.

    2X14

    We started a new service, "Puzzle Gacha." Puzzle Gacha is a virtual vending machine for puzzles.

    2X15

    We have secretly developed a device which will make anyone a winner in puzzle championships.

    2X16

    We have discovered numerous bugs in Everybody's page.

    2X17

    We have uploaded the beta version of puzzle solving AI "TOKOLI".

    2X18

    We will continue to make every effort to further improve the quality of the puzzles. Our final goal is to realize a world where the puzzles themselves have intentions and are self-asserting.