Split Personality (Doppelgänger)
(Published on 2. December 2025, 15:19 by gdc)
My first puzzle with the Doppelgänger constraint by Kafkapharnaum. According to testers (thanks everyone), it should be around 3* for difficulty. Enjoy!
Fill each cell of the main 6x6 grid such that
- Every row, column and box contains a 0 and five different digits from 1-6
- No two rows, no two columns and no two boxes may be missing the same digit
- For each 0 in the grid, the digits missing in its row, column and box must be three different digits
- Fill each framed outer cell with the digit missing from the corresponding row, column or box.
Example Puzzle
A 4x4 grid with the same rules. The highlighted cells show how the digit missing in the row (3), column (1) and box (4) are different. Play the example.
Solution code: The row missing the 1, left to right (6 digits)
Comments
on 14. December 2025, 02:55 by darkgently
Most interesting and fun 6x6 sudoku I've ever done!
on 4. December 2025, 18:36 by Gnubeutel
Loved this. Keep up the good work, gdc.
on 2. December 2025, 17:01 by ChinStrap
Really enjoyed this one. Clear and approachable while staying interesting throughout
on 2. December 2025, 16:41 by Playmaker6174
A very fun and interesting puzzle that played around the missing digit theme throughout the solve, the way it resolved at the end was pretty neat there :)
on 2. December 2025, 15:46 by The Book Wyrm
Fun lil puzzle. Smooth puzzle and a lot of fun.
