棋盘加密是这样的吗
1 2 3 4 5
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1 | a | b | c | d | e |
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2 | f | g | h | i j | k |
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3 | l | m | n | o | p |
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4 | q | r | s | t | u |
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5 | v | w | x | y | z |
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