A fortune teller in real life may not be professional enough if daisy petals are used to predict the winner who picks the last petal from the flower. Grasp your own fortune in the game of Daisy Petals, in which you and the computer will take turns to pick from a daisy with 20 petals. When the game starts, you will be asked whether you would like to start first, and you can choose your answer by clicking the corresponding button. When it is your turn, you can click to select a petal, then click the piece again to remove it, or you may choose to remove 2 neighboring petals. The selected pieces will be highlighted in yellow, but note that your selection cannot be changed once the petals are clicked. The one who picks the last petal from the daisy wins the game. The time you have spent will be recorded at the top left corner, and the quickest winner will receive the best prize ever! This game is free.

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.