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Go is an ancient and mysterious puzzle game that originated in China, and becomes a popular sport today. But it is complicated to collect the checkers after a game is completed, because the white checkers and black ones need to be picked up respectively. The Black Attract is made based on the magnetic stone. The black checkers can be collected by the magnetic black cover, and left the white ones to be collected together easily. The collecting process with the magnetic cover becomes easy, convenient and quick.