Normal sudoku rules apply. White dots separate two cells containing consecutive values; Black dots separate two cells where one value is double the other [1:2]. Values along a purple Renban line form a set of consecutive, non-repeating values in any order. Values along a yellow Nabner line form a set of non-consecutive, non-repeating values in any order (e.g. if a cell of value 3 appears on a Nabner line, then values of 2 and 4 cannot appear). There are 9 Hot cells contained within the grid comprising a set of the digits from 1 to 9. Each row, column and box contains exactly one Hot cell. There are nine 9 Cold cells contained within the grid following the same rules as the Hot cells. A cell may have only one of these roles. Hot cells increase the value of the contained digit by 1. Cold cells decrease the value of the contained digit by 1.
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