| 摘要 |
PROBLEM TO BE SOLVED: To provide a game board and pieces which allow even an aged person or an amblyope to see the size of numbers very well, permit the movement of an arm in addition to that of fingers, and allow even a plurality of players to play a game. SOLUTION: The Sudoku(R) game board and pieces are inexpensively created in light weight without requiring a power source like a game machine and is not accidentally damaged due to falling, etc., and used at any time and indefinitely like Japanese chess or the game of go. The board has diagonal lines, so that the player also plays a game by filling in the numbers from one to nine on the diagonal dashed lines in addition to a normal rule. COPYRIGHT: (C)2009,JPO&INPIT
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