Clueless Jigsaw Sudoku 1
(Published on 20. June 2025, 10:09 by AlfSmith)
• Normal Sudoku rules apply.
• A gold cell contains its position within its row, column or region (in normal reading order). All gold cells are given.
For example the gold cell R5C1 is either 1 (position in row), 5 (position in column) or 6 (position in region),
and the white cell R8C7 is NOT 7 (position in row), 8 (position in column) or 4 (position in region).
Solution code: row three
Comments
on 29. August 2025, 02:51 by eap314
Good to see a ruleset I like is actually used in other puzzles
on 23. June 2025, 22:52 by PancakePie
Beautiful! But the irregularity made it a little tougher for me. Fun to work through though!
on 20. June 2025, 23:46 by dzamie
Irregular regions are a neat twist on this ruleset! I found this one pretty easy, to the point where I second-guessed myself a couple of times - surely I'm missing something if this is a 3*.
But nah, just gotta be thorough and pay attention to the irregular shapes. I found that coloring each region for visual contrast after my first pass of pencilmarks was very, very helpful.
on 20. June 2025, 19:20 by RedBarchetta
Focused on the positive constraint at first and totally forgot about the negative constraint. Nice!
on 20. June 2025, 10:59 by marcmees
Smooth.(imo no more than 3* difficulty). Thanks
