Solution code: Column 2 from top to bottom
on 9. March 2026, 02:25 by FireTruckFuel
Point of clarification for the final rule. The word "or" is extremely important.
I would prefer updated phrasing like this example: "If a pair of adjacent cells contains a flame, the two digits must be in a ratio of either 1:1 or 1:2 but one of the digits may be 1 off from the intended relationship." Examples of each ratio type having one digit off by 1 are also a good alternative.
I couldn't figure out why some of the relationships were more than 1 off from 1:2 but I now see how I misread the rules.
on 23. February 2026, 20:38 by dzamie
Not bad. The fires are an interesting constraint once I figured out the breadth of what they were capable of.
Wasn't a big fan of the "unique rows" part, mostly because it was so tedious to check. I'm glad it only mattered at the very end.
on 22. February 2026, 01:57 by Timwi
I testsolved this puzzle before publication. Very intriguing twist on the Sudoku concept, and a worthy sequel to the earlier Snowy Lopsudoku!