Pseudo still life not partitionable in two parts:
..............
..............
.......@......
......@.@.@@..
....@@@.@@.@..
...@..........
....@.@@.@@...
...@@.@@.@....
..........@...
..@.@@.@@@....
..@@.@.@......
..............
..............

Pseudo still life not partitionable in two parts:
..............
..............
......@.@.@@..
....@@@.@@.@..
...@..........
....@.@@.@@...
...@@.@@.@.@..
..........@...
..@.@@.@@@....
..@@.@.@......
..............
..............

Not stable = 172787766795, not canonical = 2248772307, not connected = 99572774

Number of on-cells:         33
Result for subset 21 in (0..99) of search space:
Strict still lifes:  193067666
Pseudo still lifes:  328420264
