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36 coins are arranged in a 6x6 square grid fashion. What are the maximum number of coins that you can remove, if you have to ensure that every row and column has at least 2 coins remaining?

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#### Puzzle No. 2

*Posted on 08 January 2016*36 coins are arranged in a 6x6 square grid fashion. What are the maximum number of coins that you can remove, if you have to ensure that every row and column has at least 2 coins remaining?

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