来自《耶鲁大学开放课程：博弈论 第14集 第14集》

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  if the piles are uneven then you want to make them even
  如果两堆是不相等的你要让他们相等
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  --you want to make them equal. Everyone see that?
  你要把他们均等 所有人都看到了
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  So if you start off with the piles being unequal as we did both times,
  那么如果你开始像我们前两次那样不均等
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  for example 3 and 2, then you want to be Player 1.
  举个例子 3和2 你想做玩家1
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  There's a first mover advantage
  先手的有优势
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  and the correct tactic is to equalize the piles.
  而且正确的做法是让他们相等
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  What you'll notice now is that player 2 can't do anything.
  你能看到的是玩家2不能做任何事
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  If they take two from here,
  如果他从这里拿两个
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  you'll win by taking both of those two.
  无论你在哪一个拿都会获胜
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  If they take one from here you'll equalize the piles again.
  如果他从这里拿一根你将会使这两堆重新相等
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  And if they take then one from here you've won.
  并且他从这里拿走任一个你都会获胜
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  So the way to play this game is to equalize the piles.
  所以玩这游戏的方法就是使数量相等