Normal sudoku rules apply. Digits in cages must sum to the total in the top left corner, if given. Clues outside the grid show the sums of the indicated diagonals, which may contain repeats, BUT the numbers for these clues are hidden in the cages as 2-digit numbers, reading left-to-right or downwards. One clue outside the grid maps to exactly one cage and vice versa. Digits along the thermo increase from the bulb.