Normal sudoku rules apply. Each consecutive group of 3 cells on a peach line must contain one digit from each of the following sets: [1,2,3], [4,5,6], and [7,8,9]. Each thick grey line consists of one or more contiguous groups of cells, each of which sums to 10. These groups of cells cannot overlap. Digits may repeat within sums. A digit in a circle must be equal to the average (arithmetic mean) of the digits along its arrow. Digits separated by a black dot must have a ratio of 1:2.