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In this game there will be a daisy with 20 petals. You and the computer will take turn to pick petals from the daisy, the one who picks the last petal wins. Each time you can choose to pick one or two neighbouring petals. The faster you beat the computer, the higher your score.
Simple Strategy
If you let your opponent start first, then there is a very simple strategy that enables you to win: you simply pick the petals that are opposite to the petals just picked by your opponent, in this way, the petals will always be symmetric, and you will always pick the last petal.