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