一个有趣的故事传说。古印度宰相达依尔发明了国际象棋。国王舍罕下令要奖赏他。舍罕对达依尔说:“金银财宝一切随你挑,你需要什么呢?”达依尔回答说:“我别的什么都不要,亲爱的国王陛下,您只要在我发明的棋盘上,第一个格子放一粒麦子,第二个格子放二粒麦子,第三个格子放四粒,以后按这个比例每一格增加一倍, A funny story legend. The Indian Prime Minister Daeril invented chess. The king gave a rare order to reward him. Deanhan said to Daill, “Whatever do you need for your treasure, gold and silver?” Daille answered, “I don’t want anything else, dear King, you just want to be on the board I invented.” The first grid puts a grain of wheat, the second grid puts two grains of wheat, the third grid puts four grains, and after that, it doubles each square in this ratio.