Some solutions for 3X9
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..0..0..0..1..0..0..1..1..1....0..0..0..1..0..0..1..1..0
..0..0..1..1..0..0..0..0..1....0..0..0..1..1..1..0..1..0
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...M..M..P..E..M..M..E..P.......M..M..E..P..E..E..P..E...
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