Some solutions for 3X9
..0..0..0..1..1..1..1..1..1....0..0..0..0..1..1..2..2..2
..0..1..1..0..1..1..1..1..2....0..1..1..1..1..1..0..1..1
..1..0..0..2..0..1..1..1..0....1..0..0..1..1..2..2..2..2
...
...1..2..2..3..4..4..4..5.......1..2..2..3..4..4..5..6...
...2..2..3..3..3..4..4..4.......2..2..3..4..5..5..5..6...
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