点阵中有一些方格已经在实验开始时赋予了颜色，来模拟实际中的数独游戏。

A few squares were given color at the start to simulate typical sudoku play.

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孩子们在人行道上划出方格，做“跳房子”的游戏。

The children squared off the sidewalk to play hopscotch.

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孩子们在人行道上划出方格，做“跳房子”的游戏。

The children squared off the sidewalk to play hopscotch.

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孩子们在人行道上划出方格，做“跳房子”的游戏。

The children squared off the sidewalk to play hopscotch.

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