Normal 8x8 sudoku rules apply; fill the grid with the digits 1-8 so that no digit repeats in a row, column, or marked 4x2 box. AIM OF EXPERIMENT: Finkz the rat must reach the cupcake by finding a path through the maze. The path will be a snaking line that passes through the centres of cells, without visiting any cell more than once, crossing itself or passing through any thick maze walls. As well as moving orthogonally, Finkz may move diagonally if there's a 2x2 space in which to do so, but may never pass diagonally through the rounded end / corner of a wall. TEST CONSTRAINT: In this experiment, any two adjacent cells along the correct path must sum to at least ten.