土地象大棋盘一样被分成方块。

The soil was squared off like a gigantic chessboard.

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举个看似平凡的例子，假设一只青蛙从无限大棋盘上一个方块的角落出发，以相同步长朝相同象限方向一再重复跳跃[3]。

For a seemingly trivial example, imagine a frog making repeated jumps of the same length in the same direction, starting from the corner of a square on an infinite checkerboard.

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如果使用的是基于d6的任何RPG系统，玩大富豪或双陆棋之类的棋盘类游戏，或者要尝试在诸如Craps之类的骰子游戏中计算出机率，这将十分有用。

This is useful if you're using any RPG system that is d6-based, or playing a board game like Monopoly or Backgammon, or if you're trying to work out the odds in a dice game like Craps.

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