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Counting the Triangles
by
Henry E. Dudeney
A pentagon divided with five lines proposes us a grid where several triangles are hidden. How fast can you count all of them? Is any method required to do this?
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The Lost Star
by
Sam Loyd
Several triangles and quadrangles joined together create an intricate pattern where some perfect star is hidden. Discover that lost one.
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Version for Pocket PC
Find the Cross
after
Charles H. Paraquin
They say there is a cross hidden in this "seems to be impossible to form any unbroken outline" pattern. Moreover, it's fully symmetric!
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Next Symbol
after
Martin Gardner
It seems a sequence of five odd symbols can be proceeded. Will you need the sixth sense to figure out the sixth symbol?
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Visual Puzzles
Last Updated: April 30, 2009
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