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One of the first was Edgar Pierre Burkart who sent this cute little map with five colours... |
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...but it only needed four! |
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This one with five colours came from Edison Fu in Hong Kong... |
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...but it only needed four! |
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Here's a cute triangular map using five colours from Patrick... |
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...but it only needed four! |
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Here's a very neat five-colour map from Kiron Dutton... |
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...but it only needed four! |
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Ilan Feron sent us this five-colour map. The letter "m" shape makes things a bit more complicated... |
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...but it only needed four! |
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"Math Machine" thought that the curious blue stripe made five colours essential... |
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...but it only needed four! |
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Rishi spent an evening coming up with this five colour map... |
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...but it only needed four! |
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This very clever five colour map came from Edison. It took us a while ... |
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...but it only needed four! |
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Marcus from Hong Kong thought this map needed five colours. We LOVE chequer boards so we hoped it would work ... |
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...but it only needed four! |
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Mahjabeen and Rachel used five colours on this map ... |
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...but it only needed four! |
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Shen Yan Xi used five colours on this chequer board map with two sneaky extra rectangles ... |
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...but it only needed four! |
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"The Unknown" used a fifth colour to complete this map ... |
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...but it only needed four! |
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Notsure731 used a coloured background to make a map using five colours ... |
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...but it only needed four! |
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So if YOU think you've got a map that needs FIVE or more colours...
- draw out a few black and white versions
- try colouring them in different ways
- ask your friends to have a go too
... and if you're SURE it's impossible then you can tell us at our MAILROOM.
Good luck!