Trident
(Published on 25. August 2021, 19:08 by Nahileon)
Digits must be rising along the thermometers. The bulb, if given, marks the position of the smallest digit on that thermometer.
The digits 1-9 must be separated into 5 groups. No group is empty and no digit is in two groups. The digits in group 1 are smaller than any digit in group 2, the digits in group 2 are smaller than any digit in group 3, etc.
For any digit placed in the middle box, all cells that are a knight's move apart from it must contain a digit from the same or an adjacent group.
Examples:
If r4c5 contains a digit from group 4, r2c4 must contain a digit from group 3,4 or 5.
If r5c4 contains a digit from group 1, r6c6 must contain a digit from group 1 or 2.
Solution code: Row 1 of the Sudoku.
Comments
on 3. May 2022, 13:30 by Nahileon
I've changed the difficulty to very hard.
on 27. April 2022, 14:46 by Vebby
Very unusual, interesting logic. Slow going at the beginning while getting my head around the groups but it flowed really nicely towards the middle and end. I'd give it 5 stars difficulty for the beginning. Thanks Nahileon :)
on 30. August 2021, 17:44 by Nahileon
Thank you for the kind words! I'm so glad someone has solved it.
on 27. August 2021, 03:43 by Elliott810
What a great puzzle! By far harder than the "13th Nightmare". In comparison to this one the nightmare was a refreshing sleep;) Take a bow and thanks for sharing it:)
