[peterpeter]

Do we need to achieve RCE, or can it actually be solved through programming?

Use Monaco Editor 0.23, VSCode Loader, and MathJax@3/es5.

[peterpeter]

it's intended to be solved through programming

you can get a shell by killing the app and reusing the port for a listener, but it's kind of pointless

Thanks for the response! I sometimes struggle with the Misc challenges category, and the wordplay with "SUDOku" made me hesitate. I'm not a programmer, but I've seen that there are many techniques—Backtracking, Constraint Propagation, Exact Cover Algorithm, Stochastic Search, and others. It's quite interesting, to say the least.

[mazafaka555]

you need to write a little bit of python code to solve provided sudoku puzzle as the input. Checkout rules at the left side.
once you solve it with the code (time is limited) -- flag will be printed at the bottom in "Green area".
If you got stuck -- ask Chat GPT. It's becoming easy to "solve" with AI.