Knight Shift
(Published on 1. December 2025, 20:00 by ThePedallingPianist)
DOPPELGÄNGER:
• Fill each cell of the main 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 the external cells with the missing digit from the corresponding row, column or box.
ANTIKNIGHT:
• Cells separated by a Knight's move (in Chess) cannot contain the same digit.
Solution code: Digits in the row missing 6, left to right (6 digits)
Comments
on 8. December 2025, 19:15 by illandres
Was a bit unsure what to do outside the grid, but once I solved the 6x6 it became clear! Great work, some really interesting steps in there! Thank you!
on 5. December 2025, 00:33 by itsid
I don't think I fully understood the rules tbh
So I had to start over quite a few times, (re-reading the rules every time) especially rule 3 didn't want to click with me.
Ah well, eventually I got it.
(and now rule 3 seems obvious ;-))
Nice! thank you for the puzzle
on 3. December 2025, 05:55 by vitaminz
I am in awe. This feels like the platonic ideal of a doppelgänger puzzle
on 2. December 2025, 14:02 by The Book Wyrm
Fun lil puzzle, very neat.
on 2. December 2025, 09:29 by SennyK
Lovely little snack doppelgänger, thank you! :-)
on 1. December 2025, 22:06 by HeyItsErin
This was my first doppelgänger puzzle so it took a couple restarts to really work out the logic, but what fun once I got the hang of things!
on 1. December 2025, 22:04 by Zibl
A nice introduction to döppelgängers. Thank you TPP! :)
on 1. December 2025, 20:48 by aqjhs
yeehäw
