Normal sudoku rules apply. Renban lines: purple lines contain a non-repeating set of consecutive digits in any order. Nabner lines: gold lines contain a non-repeating set of digits, and no two digits on the same line can be consecutive (regardless of their position on the line). Digits in cells with a shaded circle must be odd. Digits in cells separated by a black dot have a 1:2 ratio. (ie One digit will be double the other.)