Normal sudoku rules apply. If two digits are joined by a black dot, one is double the other. If two digits are joined by a white dot, they are consecutive. If two digits are joined by an X, they sum to 10. Two lines of the same colour are twins, meaning their digits have the same sum. Adjacent digits on a green line have a difference of at least 5. Digits on a pink line form a non-repeating, conseuctive sequence which can be arranged in any order along the line. Box borders divide a blue line into segments, each of which have the same sum. Digits along a grey thermometer must increase as they get further away from the bulb. On a red line, digits must alternate between even and odd. No two digits anywhere on a yellow line may be consecutive.
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