This is a simple puzzle game to you(2U). Finish the total 3x8x8 puzzles and it shows what I said to you.
For each puzzle:
It's a 8*8 board. There are two shapes below, the straight one and the 90-degree curved one.You can drag them to fill the board and the numbers of each row and col should be equal to the numbers given aside. You can double click to change their direction.