If you control and/or occupy the center of a chess board, then you can move to any place of the board faster than your opponent. The board's center is the high ground of a chess battle.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown110"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "5r1k/6p1/p2p2qp/1p1p1n2/1P1PrP2/P2QP1P1/3NRK1P/2R5 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Nxg3 2. hxg3 Rexf4+ 3. gxf4 Qxd3 { Black wins with a large material
advantage. } 0-1