Today my copy of Painter IX Creativity by Jeremy Sutton arrived - its very inspiring. This was created mostly using the special brushes that came with it on a CD.
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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