Names on chessmen ★★★★★★

來源: Williamluo 於 2012-02-02 15:13:02 [] [舊帖] [給我悄悄話] 閱讀數 : (1826 bytes)

On an 8*8 chess board, there are 16 chessmen. There are 16 people, everyone's name is written at the bottom of a chessman. At the beginning, no one knows the layout of chessmen. Everyone is allowed to come to the chess board sequentially, and guess which chessman has his own name. After guessing, he can check all the chessmen, and he can also move a single chessman. How could they make a plan so that at least 15 people make correct guess?
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