n=3的一些解
..2..3..0. .2..1..1. .0..3..1. .1..2..3. .2..0..2. .0..1..1. .2..0..3
..3..2..1. .3..0..0. .2..0..2. .3..2..3. .1..3..1. .2..2..2. .1..3..3
..3..1..2. .0..1..3. .1..1..0. .2..1..0. .0..3..2. .0..3..3. .0..2..0
..1..0..0. .3..2..2. .3..2..3. .0..1..0. .1..3..0. .1..3..0. .1..2..1
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