A quick and dirty Sudoku solver, may or may not work.
Not sure if there any use-case for such a tool on PICO-8, but here it is.
⚠️ Looking a the source code may or may not induce permanent blindness ⚠️
⬆️⬇️⬅️➡️ : move the cursor.
❎ : select a cell/value.
[1️-9️] : fill cell with the corresponding digit if possible.
Pause : access menu.
2022-11-06: