RAT RUN 25: Mod Cons
The brief
Normal sudoku rules apply.
AIM OF EXPERIMENT: Finkz and Phinx must both reach different cupcakes by finding a path through the maze. The paths must not visit any cell more than once, share cells, cross themselves or each other, or pass through any thick maze walls.
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.
BLACKCURRANTS: If a blackcurrant sits between two digits then one is double the other.
ONE-WAY DOORS: Finkz and Phinx may only pass directly through a purple arrow if moving in the direction the arrow is pointing. An arrow always points to the smaller of the two digits it sits between.
MOTION SENSORS: The digit on a pink motion sensor indicates the number of cells that are visited within the (up to 9) cells immediately surrounding the sensor. The sensor itself is counted, if visited.
VIDEO CAMERAS: The digit on a grey camera indicates the total SUM of the digits in any visited cells that the camera's lens points towards (before a wall is reached, which blocks vision.)
TEST CONSTRAINT: In this experiment, both paths are valid 'modular lines'. Any set of 3 successive cells along a path contain one digit from each of the groups [1,4,7], [2,5,8] and [3,6,9].