国际象棋(20)

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One of the oldest chess based puzzles is known, affectionately, as The Eight Queens Problem.
. datagenetic. [引用时间: 2019-06-11
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The 7th Guest
. The Walkthrough King. [引用时间: 2019-06-11
]
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The 7th guest walkthrough - solution
. the-spoiler.com. [引用时间: 2020-10-31
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