Normal Sudoku rules apply. Digits on a thermometer must increase from the bulb end. The digit 9 and digits in yellow cells cannot see the same digit by a knight's move (in chess). All other digits must see the same digit by a knight's move. The digit 9 cannot be placed in a blue cell.
Solution code: All 9 digits in row 4.
on 20. June 2023, 23:40 by Die Hard
Updated CTC link with solution.
on 31. May 2023, 08:24 by Die Hard
Thanks BJD - I really appreciate the comment. For anyone following: "Fortnight" was renamed to "Push Me Pull You", and it's one of my favourite creations - so far :)
on 30. April 2023, 11:11 by Bjd
Wonderful puzzle! Thanks. Rediscovered this and some of your other puzzles after doing the one fka Fortnight, which is definitely one of my all-time favourites. Can’t wait for your next posting! They’re all so clever and engaging. Thanks from a big fan.
on 19. March 2023, 01:44 by Die Hard
Added tags.
on 4. March 2023, 07:18 by Die Hard
Fixed solution code.