Rules: Fill the grid with digits from 1 to n so that each digit appears exactly once in every row, column and outlined region. The arrow of an odd digit points to the bigger even neighbour of the cell. The arrow of an even digit points to the bigger odd neighbour of the cell. All possible arrows are given.
Background: This is one of my inventions. “Pusula” is a Turkish word, it means “Compass”. I used for the first time in OAPC 2, then I made for TLSCBWSC , and Turkish Sudoku Championship 2009. Also you can find more in Varientes de Sudoku.