Normal sudoku rules apply. Finkz and Phinx must both reach the cupcakes by finding a path through the maze. The paths must not visit any cell more than once, cross themselves or each other, or pass through any thick maze walls. The paths may not share cells except where they meet at the cupcake cell. As well as moving orthogonally, they may move diagonally if there's a 2x2 space in which to do so, but may never pass diagonally through a round wall-spot on the corner of a cell. If two digits are separated by a blackcurrant, one is double the other. If two digits are separated by a grape, they have a difference of at least 5. In this experiment, 3x3 box borders divide both rats' paths up into segments. Not all blue hexagonal platforms need to be visited, but any blue platform that does gets stepped on becomes a 'hit counter'; its digit will indicate exactly how many digits along its path segment match their position number (the first cell visited along a segment is 'position 1'.) Eg: If Finkz visits the digits 97325 (in that order) along a segment, then the 2 would be on its blue hit counter, because two digits match their position number; 3 is visited 3rd and 5 is visited 5th.