Cis-mirrored dove is a 18-cell strict still life consisting of two mutually stabilising doves. It is one of six ways in which two doves can be arranged to create a still life, and one of the five which has two separate islands. Of the six, it is the only one with mirror symmetry.
Cis-mirrored dove is the eighty-ninth most common object on Adam P. Goucher's Catagolue.[1] In odd orthogonal symmetries (D2_+1, D2_+2, D4_+1, D8_+1), it is the twentieth through twenty-fifth most common object, with the exact ranking depending on the specific symmetry.
Despite wings being more common than doves, the cis-mirrored dove is slightly more common than the cis-mirrored wing; this is true in both asymmetric and symmetric soups.
All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
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