File:Queen's graph colouring.jpg

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Queen's_graph_colouring.jpg(481 × 480 pixels, file size: 39 KB, MIME type: image/jpeg)

Summary

Description
English: 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.
Date
Source Own work
Author Bilorv

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Captions

A colouring of the queen's graph: no two squares with the same colour are on the same row, column or diagonal

Items portrayed in this file

depicts

14 February 2022

File history

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Date/TimeThumbnailDimensionsUserComment
current20:53, 14 February 2022Thumbnail for version as of 20:53, 14 February 2022481 × 480 (39 KB)BilorvUploaded own work with UploadWizard
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