第16章 Android游戏开发实践——快乐数独
数独的前身为“九宫格”,最早起源于我G。但其时的算法比现在的更为杂乱,其要求纵向、横向、斜向的三个数字之和等于15.,而不只是数字不能重复,儒家典籍《易经》中的“九宫图”也是来历于此(The predecessor of Sudoku is "Jiugongge", which originated in China. However, the algorithm at that time was more chaotic than the current one, which required that the sum of the three numbers in the vertical, horizontal and oblique directions should be equal to 15, not just that the numbers could not be repeated. This is also the origin of the "Nine Palaces Diagram" in the Confucian classic Book of Changes)
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