Some solutions for n=2
..0..3. .3..1. .0..4. .0..2. .0..3. .2..1. .0..1. .2..4. .0..0. .3..1
..2..2. .2..0. .2..0. .4..3. .2..0. .2..0. .4..2. .1..2. .3..1. .0..2
..4..1. .1..2. .3..3. .4..3. .1..4. .3..1. .2..3. .3..3. .2..2. .3..1
..4..1. .0..3. .4..1. .1..0. .3..2. .3..4. .4..3. .0..1. .4..4. .4..2
..0..3. .4..4. .1..2. .1..2. .4..1. .0..4. .0..1. .4..0. .1..3. .0..4
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