These should keep you busy for months:

https://www.gpumode.com/ resources and discord community Book: Programming massively parallel processors nvidia cuda docs are very comprehensive too https://github.com/srush/GPU-Puzzles

This follows a "winner takes all" scenario. I see the differences between the submissions are not so large, often smaller than 1%. Kind of pointless to work on this, if you ask me.

the main site is confusing indeed with all those leaderboards, but follow the discord and resources links for the actual learning material.

Thanks, looks interesting indeed.