Thermo sudoku rules apply. Coloured lines are palindromes; of the red and purple lines, one's sum is more than 35, the other's less than 15. Ignore the green shapes, which represent an 'accolade message' for Mark.
Thermo sudoku rules apply. Coloured lines are palindromes; of the red and purple lines, one's sum is more than 35, the other's less than 15. Ignore the green shapes, which represent an 'accolade message' for Mark.