Introduction: Switcheroo
(Published on 4. May 2021, 02:24 by Genomico)
Rules: Change two digits in each row and column to other digits (1-6) so that none of the digits appears more than once in a row or column.
The puzzle is also available on Penpa.
Another Switcheroo, with a 8x8 grid and the digits 1-9, can be found here.
Enjoy solving :)
Solution code: Row 5 and column 3 after you have 'switched' the digits (10 digits in total).
Comments
on 21. November 2025, 17:19 by eap314
Definitely like Hitori, but the shading is backwards because of the gray digits.
Solve hint: color cells that are forced to change gray (so you can't see the digit), color cells that can't change black.
on 27. July 2022, 23:22 by Jade-otA
Absolutely loved the logic needed behind this puzzle! Thanks for a good time!
on 18. November 2021, 10:57 by DomL
This is a very interesting concept.
on 5. September 2021, 02:10 by XoZu
I have to say, it took me way too long to understand how to even solve this. Once I figured out the tricks it was easy I suppose. Can´t wait to try the harder ones now.
on 18. May 2021, 13:40 by LaplaceFox
Love this idea! Feels like a much more interesting take on Hitori, would love to see more of these~
on 5. May 2021, 16:19 by Rollo
Sehr schön mit wunderbar einfachen Regeln. It smells a bit like Hitori ;-).
on 4. May 2021, 12:09 by logik66
Very nice puzzle concept. More of These.
