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数学中的对策问题,常常与智力游戏相结合,因此具有很大的趣味性。在解答时,由于解题方法灵活,技巧性强,所以对开阔解题思路,提高分析问题、解决问题的能力是很有好处的。问题1:在一张4×4的方格纸上,有一粒石子儿位于左下角的方格里(如图)。甲、乙二人玩游戏,由甲先开始,二人轮流移动这粒石子儿。规定每次只能向上、向右或向右上方移动一格,谁把这粒石子儿移到右上角谁胜。甲要怎么做才能获胜?
Countermeasure problems in math, often combined with intellectual games, are of great interest. In answering the question, due to the flexible method and skillfulness, it is very beneficial to open up the train of thought and improve the ability to analyze and solve problems. Question 1: On a 4 × 4 grid paper, a stone child is located in the lower left corner of the grid (pictured). A, B play two games, from the first start, the two take turns moving the stone children. The provisions of each can only move up, to the right or to the top right of a grid, who move the granite child who wins the upper right corner. A how to do to win?