Some solutions for n=2
..0..x..2..x..2....0..x..0..x..1....0..x..2..x..2....0..x..0..x..1
..x..1..x..0..x....x..1..x..2..x....x..1..x..0..x....x..1..x..2..x
..0..x..2..x..1....2..x..1..x..0....0..x..1..x..2....0..x..2..x..1
..x..1..x..2..x....x..0..x..1..x....x..2..x..0..x....x..2..x..0..x
..0..x..0..x..1....2..x..2..x..0....1..x..1..x..2....1..x..1..x..2
|