Four Colours Suffice: How the Map Problem Was Solved

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A puzzlers delight for over a century, the four-colour problem was one of the most famous conundrums in mathematics, if not the most famous, and many thousands of puzzlers - amateur problem-solvers and professional mathematicians alike - have struggled to answer it. The problem is simply stated, and involves the colouring of maps: Can every map be coloured with no more than four colours so that neighbouring countries are coloured differently? First posed in 1852, it took more than 100 years of colouring maps and developing ...

Four Colours Suffice: How the Map Problem Was Solved 2003, Penguin Books Ltd, London

ISBN-13: 9780141009087

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Four Colours Suffice: How the Map Problem Was Solved 2002, Allen Lane, London

ISBN-13: 9780713996708

Hardcover

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