Move unit square
A,B,C to a,b,c
and an ugly shape becomes beautifully.
On Dec. 19, 1999 , a sunday afternoon fortunately I found this figure can be devided by 6 "Z" shape.
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Back to Note 1
Back to Note 1.1 "Z" shape
Back to Note 1.2 "Duck" shape
Back to Note 1.3 "Left-hand Gun" shape
