The Mutilated Checkerboard in Set Theory
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http://wwwformal.stanford.edu/jmc/checkerboard1/checkerboard1.html  


John McCarthy  
An 8 by 8 checkerboard with two diagonally opposite squares removed cannot be covered by dominoes each of which covers two rectilinearly adjacent squares. This site presents a set theory description of the proposition and an informal proof that the covering is impossible.  


Levels:  College, Research 
Languages:  English 
Resource Types:  Articles 
Math Topics:  Set Theory 
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