Using 15 red unit blocks, build five 3x1 bricks. Using 15 white unit blocks, build three "U-shaped" blocks.
The puzzle: place the red pieces so they completely cover the white pieces.
Place two upright U's on top of each other to form an upside down block letter A. Rotate the third U 90 degrees clockwise and place it so that its upper left corner touches the upper right corner of the upside down A.
Place one vertical red block so that it covers the top-left white block. Place the other four red blocks horizontally, one on each row.
Solution
