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