Online registration is closed for this event. If available, tickets on the day of the event may incur an additional charge.

"Nikoli Puzzle Challenge Contest"

Wednesday, January 20 at 6:30 pm ET (New York)

Join MoMath for an evening of puzzles and challenges featuring eight hand-crafted puzzles brought to us by Nikoli.  Yoshi Anpuku will lead a number of exciting competitions, with prizes awarded for top performers in each of the popular puzzle categories introduced during the January 19 event: Sudoku, Kakuro, Shikaku, Slitherlink, Numberlink, Masyu, Nurikabe, and Hashi wo Kakero.  Entrants need not have attended the January 19 event to participate.  Will you be a 2021 MoMath-Nikoli champion?  Join us to find out!

Prizes will be awarded to the top three contestants in each game category: each will receive a puzzle packet worth $15.

Get your own copy of Nikoli's book Japanese Number Puzzles from Additions, the shop at MoMath.

Presentations will be in Japanese and English.

This is a live-streamed event.  Occasional video recordings are made available for a fee at

January 20th, 2021 from  6:30 pm to  7:30 pm
MoMath Online
United States
Event Fee(s)
Reduced rate (while supplies last) $5.00
Event fee $15.00
Event fee plus $15 donation to support families in need $30.00