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Pieces of a Latin Square

Place the numbers 1-4 in the 16 squares of a 4x4 grid, such that each row and
column contains one of each number. Then divide the grid into five pieces
along the gridlines, such that:

- Each piece has the same sum (8)
- Each piece is unique (no pieces have the same numbers in the same shape,
through rotations or reflections.)

Source: Original.

Solution

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