Some solutions for n=8
..0....0....0....1....0....1....0....0....0....0....1....0....3....0....0....0
..0....1....1....2....1....1....0....2....0....0....2....0....3....4....0....0
..4....3....1....4....5....2....4....1....5....3....2....2....4....2....6....5
..2....2....1....5....4....2....5....2....6....5....3....3....4....2....2....4
..6....3....3....4....3....6....5....4....4....3....2....3....6....2....2....3
..5....4....6....6....3....6....3....3....3....5....3....3....5....4....6....4
..4....5....3....6....5....3....3....2....4....6....5....3....6....4....3....6
..6....4....5....6....3....5....6....2....6....6....3....2....5....6....4....4
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