• Normal sudoku rules apply.
• Entering correct digits clears the surrounding fog. No guessing is necessary.
• Coloured lines are 'edge thermos', which run along cell edges, but never the outer grid border.
• Any cell edge covered by a thermo contains a thermo spot. The value of a thermo spot equals the difference of the digits in the two cells it sits between. Values of spots along a thermo strictly increase moving away from the bulb (the large spot at one end). Each thermo is a different colour, and they don't overlap or intersect.
• Black diamonds are purely to cover fog corners.
Of course, all digits can be deduced logically! Hope you enjoy! 😄 - Any feedback or comments welcome!
Solution code: Row 2 (left to right) & Column 3 (top to bottom) (18 digits)
on 7. February 2025, 23:12 by Xenonetix
Thanks to everyone who played so far! I've now updated the solution code to be more traditional, but I really hope that didn't affect ratings!
on 6. February 2025, 19:44 by Snookerfan
Nice puzzle, really tricky! Thank you
on 6. February 2025, 17:18 by maniacaljackal
Nice puzzle! Had a great time finding the line paths before their fog was cleared.
on 6. February 2025, 01:46 by by81996672
Fun puzzles, hope to see more puzzles related to it. Difficulty of about 3 stars