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[DhtmlXQ_adddate]2017-08-05 12:38:50[/DhtmlXQ_adddate]
[DhtmlXQ_editdate]2017-08-05 12:38:50[/DhtmlXQ_editdate]
[DhtmlXQ_title]盲公摸棍(顶牛)[/DhtmlXQ_title]
[DhtmlXQ_binit]9999995949489999996847999999310699999941405099999942610338999999[/DhtmlXQ_binit]
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[DhtmlXQ_type]江湖残局[/DhtmlXQ_type]
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[DhtmlXQ_class]网络残局[/DhtmlXQ_class]
[DhtmlXQ_event]竹香斋象戏谱[/DhtmlXQ_event]
[DhtmlXQ_group]散局[/DhtmlXQ_group]
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[DhtmlXQ_result]红胜[/DhtmlXQ_result]
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[DhtmlXQ_remark]小灰灰[/DhtmlXQ_remark]
[DhtmlXQ_author]小灰灰[/DhtmlXQ_author]
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[DhtmlXQ_owner]微浅f小灰灰[/DhtmlXQ_owner]
[DhtmlXQ_oldowner]微浅f小灰灰[/DhtmlXQ_oldowner]
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[DhtmlXQ_comment0]这是《竹香斋象戏谱》的一则数学游戏排局。||||这个数学问题以及它的推广我在中学时都有所总结。限于篇幅这里不做详细介绍,只简略给出取胜策略。||第一步:把单次可行步数(兵,炮之间间隔)1,4,6都写成二进制数,每个数一行,对齐个位:||001||100||110||||第二步:看是否每一列上1的个数都是偶数个。如果是的话,先行者负,如果不是,后行者负。在这里第2列,第3列都只有一个1,所以是后行者负。||||||第三步:在后行者负的局面下,先行者取胜策略是:尽量使得每一列1的个数变成偶数个。(这样轮到对方走子时成为先行者负的局面。)为了做到这一点,只要找出最先出现奇数个1的列(该例中是第二列),随便选一在该列是1的行(因为该列上是奇数个1,所以至少有一行满足条件)。该例中只有第三行在第二列是1。于是就改变第三行:把它变成101(也就是十进制的5)这样即使得每一列上1的个数都是偶数个了。||||所以正解是:炮三进一(把十进制的6,也就是二进制的110,变成十进制的5,也就是二进制的101)。||||以后黑不管如何应,红总可以用上述分析方法应对。[/DhtmlXQ_comment0]
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