Sudoku is Roundabout by Phistomefel, App variant is THERMO


Normal sudoku rules apply. Digits along a thermometer must increase from the bulb end. 1. Move along the perimeter cells in a clockwise direction. From a cell on the perimeter, you move X steps clockwise where X is the digit in that cell. 2. No matter which perimeter cell you start from, you will return to it at some point following rule 1 for every cell you reach.

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