Sudoku game playing device for blind person, has light raised mark provided at base of stable pieces, and mobile pieces whose base is relieved so that mobile pieces are tilted by slightly supporting on ends of mobile pieces
摘要
<p>The device has a support plate representing a sudoku grid with 9 regions. Each region has 9 cells to receive stable and movable pieces numbered from 1 to 9. The pieces have upper surfaces comprising figures embossed with Braille alphabet and Arabic figures. Base of the stable pieces is straight so that the stable pieces are not tilted during handling. A light raised mark is provided at the base. The movable pieces have a color different from that of the stable pieces. Base of the mobile pieces is relieved so that the mobile pieces are tilted by slightly supporting on ends of the mobile pieces.</p>
