Some solutions for n=6
..4....0....3....0....4....1....1....4....2....3....4....0....1....4....4....0
..4....2....1....5....6....4....1....1....4....2....4....4....3....3....4....6
..5....1....5....1....5....6....2....2....0....3....5....1....4....4....3....2
..2....3....3....3....3....5....3....2....4....2....3....3....3....5....5....1
..3....2....2....4....4....3....2....3....6....4....3....5....5....6....2....4
..3....4....4....2....2....2....3....3....2....1....5....2....2....5....3....5
..1....0....3....3....1....4....4....4....2....3....4....3....1....4....1....3
..4....2....1....5....3....4....1....4....4....2....4....4....6....3....4....0
..2....1....2....1....2....6....5....5....0....3....5....4....4....4....0....2
..2....3....0....0....0....5....0....2....4....5....6....6....3....2....2....1
..0....5....5....4....1....3....2....6....6....4....3....5....5....3....2....4
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