File:Queen's graph colouring.jpg: Difference between revisions
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Edited [en] caption: A colouring of the queen's graph: no two squares with the same colour are on the same row, column or diagonal |
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{{Information |
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|description={{en|1=A 9-colouring of the queen's graph, where no two squares with the same colour can be reached from each other by a queen move in chess. No colouring with fewer colours is possible. The image is based on "On Coloring the n × n Chessboard" (M. R. Iyer and V. V. Menon), who provide a mathematical description of this colouring.}} |
|description={{en|1=A 9-colouring of the queen's graph, where no two squares with the same colour can be reached from each other by a queen move in chess. No colouring with fewer colours is possible. The image is based on "On Coloring the n × n Chessboard" (M. R. Iyer and V. V. Menon), who provide a mathematical description of this colouring.}} |
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|date=2022-02-14 |
|date=2022-02-14 |
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|source={{own}} |
|source={{own}} |