I have added the About Nikoli Hurdles page on the menu (at the top of this site).
Briefly: 8 Nikoli-style puzzles, solve them and you could have the latest Nikoli Penpa sent to you!
It is beginning soon! Have you been warming up?
Also, I’ve fixed a minor error in one of the sudokus in the Dutch Advent Calendar PDF I uploaded a while back. You can see that here. Lots of puzzles happening online lately, I hope you find time for these Nikoli Hurdles and other events that will follow.