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This is is a puzzle for the blind design, the blind population can enjoy the fun of the puzzle, so that the shape of a cube puzzle can be played in three different difficulty playing programs. After the puzzle is completed blind can rack up the puzzle box, easy to enjoy the blind to touch the puzzle pattern. For players of different ages, you can set a pattern of varying difficulty. You can make puzzles for all ages blind friend. Make a puzzle can play three different difficulty playing programs.
Ying Zhang Jingdan Wang Xiaomei Zhang Peng Wang