Rules for solving:
- Normal sudoku rules apply - Place digits 1-9 once each in every row, column and 3x3 box
- Digits separated by a white dot are consecutive, digits separated by a black dot are in a 1:2 ratio, i.e. one digit is double the other. Not all dots are given
- Adjacent digits on a green line must have a difference of at least 5
- Digits on an arrow sum to the digit in that arrow's circle
- Digits must increase along a thermometer starting from the bulb
- Digits cannot repeat on both marked diagonals
Puzzle:
Solution code: Column 9 (Top to Bottom)
on 27. August 2026, 19:39 by sourcedecay
Surprisingly tricky puzzle. The first 27 digits I solved in about 15 minutes and I thought this was going to be an easy puzzle. Then the rest of it took well over an hour to get my head around. I enjoyed it.
on 26. August 2026, 16:18 by Snookerfan
Great and very hard! Tiny steps of nice logic leading to the solution. Thanks
on 25. August 2026, 20:29 by keenbowl
Very nice one, sneaky to me in terms of feeling for the first half that the rating was off, but then the last half really was tough.
Thanks for setting and sharing!
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