Death by chocolate - 拼圖

You are locked in a room with your worst enemy. On a table
in the centre of the room is a bar of chocolate, divided
into squares in the usual way. One square of the chocolate
is painted with a bright green paint that contains a deadly
nerve poison. You and your enemy take it in turns to break
off one or more squares from the remaining chocolate (along
a straight line) and eat them. Whoever is left with the
green square must eat it and die in agony. You may look at
the bar of chocolate and then decide whether to go first or
second. Describe your strategy.

試翻譯:
有一大塊巧克力 能切割成好幾小塊 (像普通nxm的長方形)
但其中一小塊呈現綠色是有毒的
你和敵人輪流剝下一小塊或多塊巧克力(along a straight line)
最後誰吃到有毒的就會死
現在你能看看巧克力 並決定誰先剝才能讓你活下來 解釋你的策略


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