Sixteen pumpkins are placed in a 4x4 array as is shown.
The object is to light as many pumpkins as possible so that in each row, each column and in each of the two main diagonals exactly three pumpkins are lighted and the remaining pumpkins are all differently rotated.
To light a pumpkin, click it. To return the pumpkin to its initial state, click it again.
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*The final version of this puzzle has been inspired by the design to the puzzle created by Peter Grabarchuk.
