Enter the numbers 1–12 so that each of them appears exactly once in every row, column and boldly outlined 3×4 region.
SudokuPad input: SudokuPad uses the letters A, B and C for the values 10, 11 and 12. Therefore, A=10, B=11 and C=12. If the letters are not displayed, enable the “Letter Tool” under “Settings” and then use the “9/A” button to switch to letter input.
If you enjoy this combination, I would be happy to hear your thoughts: Would you also be interested in a more compact 9×9 version, or should the next one be an even larger 16×16 puzzle?
Solution code: Row 4 from left to right in SudokuPad notation, without spaces (A=10, B=11,C=12).
on 29. August 2026, 20:37 by firespire
My first 12x12, what a marathon. 16x16 is crazy talk.
I think 9x9 would get more people giving it a try but it is obviously less distinctive.
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.