Bloxorz
http://www.coolmath-games.com/0-bloxorz/index.html
Move the block around, a logic puzzle.
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Links
This link, Bloxorz: http://www.coolmath-games.com/0-bloxorz/index.html
Give to students: http://gomaths.net/1664
This link on MathsLinks: http://mths.co/l/1664
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