About Enjoy4fun
Split the block into two parts and rearrange them to create the required pattern!
Draw a line from one bordering vertex to another bordering vertex, the path can't go over each other. After the line is drawn, use those 2 pieces to cover all the gray squares, you can rotate the pieces by tapping the piece, if your cut is correct, there there is at least one solution to the puzzle, you win if you can cover all gray squares.