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Joined: Aug 2001
Posts: 10,684 Likes: 1
Carpal Tunnel
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Carpal Tunnel
Joined: Aug 2001
Posts: 10,684 Likes: 1 |
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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Joined: Nov 2007
Posts: 390
enthusiast
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OP
enthusiast
Joined: Nov 2007
Posts: 390 |
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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Joined: Dec 2006
Posts: 956
old hand
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old hand
Joined: Dec 2006
Posts: 956 |
I get only 10, which one am I missing The Fourth one 
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Joined: Dec 2008
Posts: 107
member
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member
Joined: Dec 2008
Posts: 107 |
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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Joined: Dec 2000
Posts: 13,803
Carpal Tunnel
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Carpal Tunnel
Joined: Dec 2000
Posts: 13,803 |
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.
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Joined: Mar 2000
Posts: 11,613
Carpal Tunnel
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Carpal Tunnel
Joined: Mar 2000
Posts: 11,613 |
attention to detail i would like to see from a medical doctor. He likes puzzles, too. 
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Joined: Jan 2009
Posts: 16
stranger
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stranger
Joined: Jan 2009
Posts: 16 |
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.
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Joined: Jul 2005
Posts: 1,773
Pooh-Bah
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Pooh-Bah
Joined: Jul 2005
Posts: 1,773 |
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
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Joined: Apr 2000
Posts: 10,542
Carpal Tunnel
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Carpal Tunnel
Joined: Apr 2000
Posts: 10,542 |
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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Joined: Jan 2009
Posts: 16
stranger
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stranger
Joined: Jan 2009
Posts: 16 |
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
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