Blank Jigsaw Puzzle

“Blank Jigsaw Puzzle" is a logic jigsaw puzzle without any images.
HOW TO PLAY?
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1. On a square board, there is a platter with irregular edges;
2. In the answer section, there are several jigsaw puzzle pieces. You need to drag these pieces to the corresponding positions on the board.
3. On the board, you can rotate the puzzle to the right direction by clicking on it;
4. You need to put the pieces together to fit perfectly into the bottom platter for the challenge to succeed.
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