Enigma 749: Four square digits
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From New Scientist #1904, 18th December 1993 [link] Here is a four-by-four
square of numbers. You will see that each row and each column adds up to
the sam...
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2 comments:
I love the top one here - wouldn't call it a doodle but an artpiece :)
Thanks anonymous - it emerged out of a very long telephone conversation. The friend I was talking to says it reminds her of her grandmother.
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