So I finally managed to stop playing long enough to write this review... Quick paced, and addictive. Are there any plans for a truly "insane difficulty" level?
Id also like to see an "insane tutorial" level where patterns for more difficult solutions are explained to those who dont have all the tools they need :))
Finally, dont disregard the simpler levels... Go back and re-boil your frog. You will likely see a simple pattern you previously missed.
Well done.
Transfabricate about ▻Sudoku +, v4.6