The proper name for this puzzle's constraint probably has something to do with taxicab numbers, but I prefer "long knight." Essentially, this is a knight's move constraint with an extra cell. In the explanation image below, none of the green cells can be a 7.
Ordinary Sudoku Rules Apply
Long Knight Rules Apply
Ordinary Killer Rules Apply
Digits may not repeat along the indicated diagonals.
Here is the puzzle. Enjoy! :) You can play it here.
Solution code: Row 4 followed by column 7
on 3. November 2021, 23:08 by filuta
Really enjoyable puzzle with a cool break-in. Thanks.
on 17. February 2021, 18:21 by minus2ev
Very nice one! Great break-in and overall a smooth solve. Difficulty is closer to 3 stars, but it's now up to solvers I guess :)
on 16. February 2021, 22:59 by sarel
A really nice variation but also a huge hindrance since I've done so much knight sudoku that I kept almost making silly mistakes but once I found the break-in it was smoother sailings. Great puzzle and logic.
Thank you very much! I also made several near-mistakes myself when I first started constructing it.
on 16. February 2021, 20:17 by cam
Removed comment in description about difficulty rating as it has been rated.
on 16. February 2021, 17:32 by SKORP17
netter Einstieg, niedriger Level wäre angebracht.
Reply: Thank you! I appreciate the feedback.It's always hard to gauge one's own puzzles.
on 16. February 2021, 15:57 by Tilberg
Interesting ruleset and some fun logic, especially in the beginning.
Reply: Thank you so much! I'm glad you thought the logic was fun!
on 16. February 2021, 15:29 by antiknight
Amazing break in and nice logic with the long knight rule :P
Reply: I really appreciate you saying that!
on 16. February 2021, 14:34 by TonyN
puzzle created on F-Puzzles here https://f-puzzles.com/?id=y6aq4tzn
on 16. February 2021, 09:14 by SirWoezel
Very good puzzle, with great break-in logic.
Reply: Thank you, sir!