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Ken's Puzzle of the Week

Dividing A Square

Dividing along the gridlines, divide an NxN square in to the maximum number of pieces, such that each piece
is unique (including rotations and reflections.) Solve for N<=8. For example, for N=3, you
can divide a 3x3 square into four pieces of sizes (3,3,2,1).

Source: Original.

Solution

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