Rules:
Normal Sudoku rules apply. Place the digits 1–9 once in every row, column, and 3×3 box.
Anti-Knight: Cells separated by a knight’s move in chess cannot contain the same digit.
Region Sum Lines: Box borders divide a blue region some line into segments of the same sum
Solution code: Row 1 (9 digits)
on 23. September 2025, 16:25 by Snookerfan
Very nice puzzle! Some steps were really hard to see or find, overall an enjoyable solve. Thank you
on 23. September 2025, 11:39 by Playmaker6174
Really tight coloring puzzle that required one to be super precise throughout to make progress. The logic were surely interesting, but my solve was rather slow till the end.
on 23. September 2025, 08:58 by Gambit
Tricky, thoughtful deductions to be made here. Very rewarding to find out my deductions made, turned out to be correct. Thanks for sharing.
on 23. September 2025, 01:31 by zeniko
Welcome to the site. This was a rather tricky first puzzle (or maybe I‘ve missed a step during the break-in) with nice geometry. Thanks for sharing.
(BTW.: Please be patient, in particular if the solve requires quite some time.)
on 23. September 2025, 00:33 by KwellTheFwell
Any thoughts so far, solvers?
on 22. September 2025, 23:28 by KwellTheFwell
Added more keywords
on 22. September 2025, 23:26 by KwellTheFwell
Final touch-up
on 22. September 2025, 23:23 by KwellTheFwell
Please leave comments and feedback if you solve or don't!!!
on 22. September 2025, 21:30 by KwellTheFwell
Fix link trying
on 22. September 2025, 21:20 by KwellTheFwell
Added solution code
on 22. September 2025, 21:19 by KwellTheFwell
Fixed structure
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.