What is the maximum number of 3x3 squaresthat can be formed from the squares ... ...

What is the maximum number of 3x3 squares that can be formed from the squares in the 6x6 checker board to the right?


(A) 4
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Press: Set H - Elimination Strategies

 
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What is the maximum number of 3x3 squaresthat can be formed from the squares ... ... 
Posted: 11/21/2013 21:52
How to count ,I don't understand.