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