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The '''Center Manhattan-Distance''' is the [[Manhattan-Distance]] or number of orthogonal [[King]] moves on the otherwise empty board from any square to the four squares {d4, d5, e4, e5} in the center of the board. In conjunction with [[Center Distance]] a constant [[Array|array]] might be considered as the base of [[Piece-Square tablesTables]]. Center Manhattan-Distance is used in various evaluation terms, for instance to encourage the king to centralize in the ending, as well in [[Mop-up Evaluation]].