Only One Possible Solution Exists
(Published on 4. September 2025, 04:51 by Md88keys)
by Md88keys
Play in Sudokupad
Normal sudoku rules apply.
Digits do not repeat in either marked diagonal (blue lines).
Digits on a thermometer increase from the bulb to the tip.
Digits on a pink renban line contain a set of consecutive digits in any order.
Digits on an arrow sum to the number in the attached circle.
Digits in cages do not repeat and sum to the number given
Note: This puzzle would be easier with a single given digit in a key cell. Without that digit, the sudoku maker app cannot solve the puzzle. But I believe in you! You can solve the puzzle without any given digits, without guessing, and without bifurcation. You don't even need set theory. I suggest aggressive coloring.
Solution code: Column 4 top to bottom.
Comments
on 4. September 2025, 22:28 by Exigus
Hard but fair, coloring definately helped. Thanks!
on 4. September 2025, 21:41 by GeorgeTheToad2
I give it 3* difficulty once you get the colouring going. Very nice construction.
on 4. September 2025, 19:40 by Snookerfan
Very nice! If you happen to look in the right place at the right time, it is surprisingly approachable. Thank you
on 4. September 2025, 11:15 by BlackWolf
For (what I think) is a very difficult puzzle, the solve path was really well executed
on 4. September 2025, 09:26 by CYJ123456789
It took me a long time, but it was very nice.
