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The Tangramboard Plus

Put-Together Puzzles

by Serhiy Grabarchuk

Featured at Puzzles.COM
This puzzle is featured at Puzzles.COM.
 
This puzzle is the Tangramboard* extended with an additional checkered 3x3 Mini-Tangramboard. Using all the 11 checkered tiles, assemble one big (5x5) checkered square. Note that dark elements of both colors, blue and green, are considered as the same (dark) color, and so you can compose dark boxes of the checkerboard, using any combinations of these colors.

Pieces are one-sided, so you can not flip them over. Also, no overlapping is allowed. To move a tile, click and drag it. To rotate a tile, click it. Use "Restart" to start the puzzle over again.

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IMPORTANT NOTE: The Tangramboard Plus is rather a hard puzzle.
*) First it was described in my article, Puzzle Classics at G4G7, which is a web version of my presentation "Puzzle Classics: New Discoveries, Challenges, and Solutions" given at the Seventh Gathering for Gardner, Atlanta, USA, March 17, 2006. Now the Tangramboard is also presented at the Archimedes' Lab website in their wonderful Tangram pages among Tangram Variants II.
 
Last Updated: October 14, 2008
Posted: July 23, 2007
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