Some solutions for n=3
..0..0..0..0..0..1....0..0..0..0..0..0....0..0..0..1..0..2....0..0..1..1..0..1
..2..3..1..0..3..1....0..0..1..1..0..0....1..0..3..1..3..1....0..2..1..0..0..0
..1..1..1..0..1..1....1..1..1..1..0..2....1..0..1..1..1..1....0..1..1..3..0..1
..0..0..0..0..0..1....0..3..1..0..0..1....0..0..0..0..0..0....0..1..1..1..0..1
..2..1..0..0..2..0....0..2..1..0..0..0....0..0..3..1..1..2....1..1..0..0..0..0
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