(Ignoring the inner shapes created by the overlaps) The total number of sides of the overlapping shapes in all figures must equal eleven.
The shapes in every figure must be able to be arranged into a square. At least one white and one grey shape are required.
The number of dots on each figure must match the number of inside lines.
From left to right, the two shapes alternate in terms of sizes, placement, and shading.
Every series square has one black square turn grey and one grey square from the previous series square turn white.
Every figure needs to have a large shape on the left side that is overlapped by the same small shape.
In every series square, the two-headed arrow rotates by ninety degrees. Every time, the line featuring the squares and circles rotates 45 degrees in the clockwise direction. Within every series square, the circles alternate colors.