Cis-mirrored dove

Up dove on dove
Up dove on dove image
View static image
Pattern type	Strict still life
Number of cells	18
Bounding box	9 × 5
Frequency class	21.0
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S23 – B378/S012345678 # of rules 210 = 1024 Isotropic rules B/S2-ai3nr – B2ikn34-ijk5-n6-i78/S012345678
Glider synthesis Fewest gliders 4 Catagolue-generated RLE synthesis Uploaded synthesis RLE updoveondove_synth.rle
Pattern files Plaintext updoveondove.cells RLE updoveondove.rle
Identifiers apgcode xs18_69is0si96 Niemiec ID 18.355 Pentadecathlon ID 18.15360

Up dove on dove (or cis-mirrored R-mango) is an 18-bit still life consisting of two mirrored doves.

Commonness

Up dove on dove is the eighty-ninth most common object on Adam P. Goucher's Catagolue. 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 up dove on dove is slightly more common than the up wing on wing; this is true in both asymmetric and symmetric soups.

Glider synthesis

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.

See also

• List of common still lifes

External links

• Cis-mirrored dove at Adam P. Goucher's Catagolue

• The 19044 eighteen-bit still-lifes at Mark D. Niemiec's Life Page (18.355)