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Tiling Trial II (Posted on 2014-08-06) Difficulty: 3 of 5
A 20x21 rectangular floor needs to be tiled using square tiles that are uncuttable, non-overlapping and having integer sides.

What is the smallest total number of tiles to make this possible?

No Solution Yet Submitted by K Sengupta    
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Possible spoiler | Comment 2 of 4 |

Here's a way with 8 tiles, with the following sides, arranged round the perimeter in the order 14, 7, 7, 6, 6, 6, 3, 3.

I'd like to see a computer approach!

  Posted by Harry on 2014-08-07 09:13:03
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