Every 100 years, the mysterious castle of Sudokuvania appears in the countryside. Legend has it that it contains the Secret of Sudoku. Gathering the last few given digits in the area, you solemnly approach the boxy fortress, determined to discover the secret and share it with your favorite people.
OK, once you get thermometers and sums not being able to see the whole object makes me think it kinda defeats the point. But maybe that’s just me being a filthy Sudoko casual.
I’ll press on and see if it can click. Did get the second boss done in the end.