Logic Masters Deutschland e.V.

Draw a continuous particle beam that runs along the edges of the cells or diagonally through the cells. At the grid points, the beam either goes straight or turns at right angles. At the points marked with a cross, the ray crosses and runs straight through the crossing in each case. Otherwise, the ray does not touch itself. At the points marked with an asterisk, the beam splits; this always occurs symmetrically in the direction of travel with an opening angle of 90°. The entry point and all exit points as well as all splitting and crossing points are already given. The numbers on the left and above indicate how many segments of the ray cross the corresponding line or column; the numbers on the right and below indicate the number of turning points lying along the corresponding line.