Rules: Normal Sudoku Rules Apply Digits on the marked diagonal may not have a repeated digit. Clues outside the grid are sandwich clues. The total is the sum of the digits that are between 1 and 9. Digits along a thermo must increase from the bulb end. All thermos have the same total. (i.e If the 4 cell thermo is 5,7,8,9, then the 7 cell thermo adds up to 29)
Happy Solving !!!
Solution code: The positive diagonal (starting from R1C9) and Row 7 (18 digits total)
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