Cis-mirrored R-bee (or up bun on bun) consists of two buns facing each other with one row of dead cells between them so as to stabilize each other. It is one of the five possible ways to combine two buns into a still life. Its name comes from the fact that buns are also known as R-bees.
Cis-mirrored R-bee is the thirty-second most common still life in Achim Flammenkamp's census, being less common than canoe but more common than moose antlers.[1] It is also the forty-second most common object on Adam P. Goucher's Catagolue.[2]
It is much more common in DryLife.
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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