Rule 1:
From left to right, the arrow moves 90 degrees clockwise. This model continues in the next row.
Rule 2:
From left to right, in each row, the small shapes at the four corners alternate between squares, triangles and circles.
Rule 2:
From top to bottom, in each column, the small shapes at the four corners alternate between squares, triangles and circles.
Rule 3:
From top to bottom, the central shape alternates between white and black. This model continues in the next row.
Rule 4:
From left to right, in the first row, the central shape is square, in the second row – circle and in the third row is triangle.