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Define 6-Queens problem. Assuming that the queens are placed column-wise in the 6-Queens problem solved using backtracking. Consider the following intermediate state where the queens are attacking each other. Show the steps that involve backtracking to attain the solution where no queen attacks the other.

__ __ Q __ __ __
Q __ __ __ __ __
__ __ __ Q __ Q
__ Q __ __ __ __
__ __ __ __ Q __
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