Rules:
Place the digits 1-9 once each into every row, column, and box.
Color every cell in the grid either HOT or COLD. All cells of the same color are orthogonally connected, and no 2x2 area is entirely one color.
HOT cells have a value that is one more than their digit.
COLD cells have a value that is one less than their digit.
A value N on a circle counts the number of values in the up to 8 surrounding cells that are greater than or equal to N.
Have fun solving!
Lösungscode: Column 7, with changes in shading marked by /
am 12. Oktober 2026, 22:54 Uhr von FIT7Y
Updated the phrasing of the rules
am 26. August 2026, 23:08 Uhr von Nicli
The first clues were so vague, it felt like talking to people IRL. Very frightening at first but deeply satisfying. Thanks!
am 16. Juli 2026, 22:42 Uhr von Qodec
Madness.
am 16. Juli 2026, 19:10 Uhr von PierreTombal
Love the opening logic, but sadly the puzzle doesn't work out. Both the numbers and the shading lead up to a deadly pattern.
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Please recheck your work because the puzzle is unique in both shading and numbers.
***
Okay, solved. One sneaky hiding digit that needed to be a specific colour unwinds the whole thing.
am 16. Juli 2026, 11:19 Uhr von Reisen
The rules interact very well with each other.Thanks