Rules: Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 outlined box.
A digit N in a cell with an arrow indicates that the digit N is also in a cell N steps in the direction of an arrow. There may be other repeated digits in the direction of the arrow. Not all arrows are given. (For example, A 4 in a cell with an arrow means that there is a 4, 4 cells away in the direction of the arrow and there may be additional 4s in that direction.)
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