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 "Unknown282"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "1k4rr/ppp2p2/8/3Pb2p/1PP1PP1q/P5PB/2Q4K/1R4R1 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Rxg3 2. Rxg3 Qxf4 ( { Black can try: } 2... Bxf4 3. Rb3 Rg8 4. Qf2 a6 5. c5 Rg6 6. Rd3 Be5 7. d6 cxd6 8. cxd6 Rxg3 9. Rxg3 Bxd6 10. Qe1 f6 11. Kg2 Bxg3 12. Qxg3+ Qxg3+ 13. Kxg3 { White wins with a large material advantage. } ) 3. Rg1 h4 4. Qg2 hxg3+ 5. Qxg3 Qf2+ 6. Kh1 ( { White can try: } 6. Rg2 Bxg3+ 7. Kh1 Rxh3+ 8. Rh2 Rxh2# ) 6... Bxg3 7. Rxg3 Qxg3 8. c5 Rxh3# 0-1