P(ol)arity [by FastSandals]
(Published on 6. March 2026, 19:55 by timotab)
- Normal Sudoku rules apply: Place the digits 1 to 9 once each in every row, column, and box.
- All lines are both Whisper-5 lines and Parity lines.
- Whisper-5: Adjacent digits on a line must have a difference of at least 5.
- Parity: Where two digits are adjacent on a line, one will be even and one will be odd.
- A > symbol between two cells points to the smaller digit.
As well as setting puzzles, I also solve puzzles on YouTube. Please check it out!
Solution code: Row 3
Comments
on 8. March 2026, 23:03 by damasosos92
This puzzle is so well crafted: you need a proper notation system and the ideas behind it are deep and brilliant. Very well done, FastSandals!
on 8. March 2026, 21:10 by mihel111
Double WoW on the high side of the waves. Very well done FastSandals. Keep going.
on 7. March 2026, 18:44 by Exigus
Had a great time colouring, thanks!
on 7. March 2026, 13:17 by Snookerfan
Great puzzle! It took me a while to find the right way to color, but after that the puzzle was really smooth. A very clever puzzle, especially for a 12 year old. Take a bow and thank you!
on 7. March 2026, 08:20 by SennyK
Wonderfull puzzle, really enjoyable :-)
on 6. March 2026, 23:11 by dzamie
gradually increasing the number of colors I use the further I go in this puzzle
on 6. March 2026, 20:26 by yttrio
This was a really interesting combination of constraints, and each line made its contribution to the solve path nicely. The final disambiguation was also really cool!
on 6. March 2026, 20:09 by Fool on Hill
Excellent puzzle. Requires and rewards careful thought. The interaction between the clues (including those deceptive short lines) is interesting, and I am sure the combination will be used again. I haven't seen a disambiguation mechanism quite like this before.
