Some solutions for n=6
..0..x..0..x..0..x..1....0..x..1..x..0..x..0....0..x..0..x..1..x..1
..x..1..x..1..x..0..x....x..1..x..0..x..1..x....x..1..x..0..x..0..x
..1..x..1..x..1..x..1....0..x..1..x..1..x..1....0..x..0..x..1..x..0
..x..0..x..0..x..0..x....x..0..x..1..x..0..x....x..1..x..1..x..1..x
..0..x..1..x..1..x..0....1..x..0..x..0..x..0....1..x..1..x..0..x..1
..x..1..x..0..x..1..x....x..0..x..1..x..1..x....x..0..x..0..x..0..x
..0..x..0..x..1..x..0....1..x..1..x..0..x..0....1..x..1..x..1..x..1
|