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tsuwm #185399 06/20/09 12:28 AM
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Indeed.

There are five 1-by-1 squares, five 2-by-2 squares, and one 3-by-3 square.

Watch out not to miscount six 2-by-2s by tagging the same one (made of four 1-by-1s) twice, counting both across and down.

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Originally Posted By: wofahulicodoc
Indeed.

There are five 1-by-1 squares, five 2-by-2 squares, and one 3-by-3 square.

Watch out not to miscount six 2-by-2s by tagging the same one (made of four 1-by-1s) twice, counting both across and down.


it may be a coincidence and not relevant at all but I note that your username ends in doc and this post shows the sort of attention to detail i would like to see from a medical doctor.

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Originally Posted By: dalehileman
I get only 10, which one am I missing


The Fourth one whistle

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Somewhere back there in my math education, I think I remember some kind of rule about lines in relation to infinity. Isn't there one about libes not ending? If that is the case, I get 19.

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Lines don't end (but libes, do; the one at Beloit College did back in the early '60s and it was replaced by a new one, but that's a whole nother story) but line segments do end. Those squares are all bounded by line segments. If you extend all those line segments to infinity you get 30 squares by my count.

latishya #185426 06/22/09 02:14 AM
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attention to detail i would like to see from a medical doctor. He likes puzzles, too. smile

tsuwm #185449 06/23/09 02:09 PM
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I only see 7 squares. 4 in the middle, one covering the circumference of those 4, one in the top right corner, and one comprised of the middle squares, and top and right rectangles. All the rest are rectangles.

Sparkle #185451 06/23/09 04:40 PM
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Spark: I think you probably dismiss a square if it contains other squares or rectangles. Undoubtedly there are 11 squares although I must share your concern because for some reason I count only 10

...while for obvious reasons I find it difficult to specify the one I can't find

Edited to admit sheepishly that I had missed the middle 2 x 2

.....the one Zed has described as "that one there"


dalehileman
Sparkle #185453 06/23/09 06:21 PM
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as dale says, Sparkle, you are discounting the the four long (empty) rectangles and the (two respective) juxtaposed small squares; there are four sets of these which comprise the four additional squares.

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Originally Posted By: dalehileman
Spark: I think you probably dismiss a square if it contains other squares or rectangles. Undoubtedly there are 11 squares although I must share your concern because for some reason I count only 10

...while for obvious reasons I find it difficult to specify the one I can't find

Edited to admit sheepishly that I had missed the middle 2 x 2

.....the one Zed has described as "that one there"


lol smile

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