Irregular sudoku rules apply. Place the digits 1 - 6 once each in every row, column and bold outlined region.
Fast Thermometers: Consecutive digits on the fast thermometers must increase by 2 or more starting from the bulb end.
Irregular Symmetry: Every digit is paired with its 180 degree rotational opposite in the grid. Every such pair of digits must add to either 6 or 12. Eg. R1C1 and R6C6 must add to either 6 or 12. R2C3 and R5C4 must add to 6 or 12.
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Lösungscode: Row 6