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