Difference between revisions of "Riley's breeder"
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'''Riley's breeder''' is a | '''Riley's breeder''' is a suprisingly small 38-cell quadratic growth pattern, discovered by [[Mitchell Riley]] in July 2006. It comprises a [[puffer train]] and two [[LWSS]]es. It produces a [[switch engine]] every 140 generations, filling three eighths of the [[Life]] plane. It has fewer cells than [[metacatacryst]], and fits in a [[bounding box]] several orders of magnitude smaller. | ||
It was originally discovered as a 40-cell pattern, but can be backtracked two generations by replacing the B-heptomino with a hexaplet. | It was originally discovered as a 40-cell pattern, but can be backtracked two generations by replacing the B-heptomino with a hexaplet. | ||
Revision as of 19:47, 1 June 2017
| Riley's breeder | |||||
| View static image | |||||
| Pattern type | Breeder | ||||
|---|---|---|---|---|---|
| Number of cells | 38 | ||||
| Bounding box | 135 × 41 | ||||
| Direction | Unknown | ||||
| Period | Unknown | ||||
| Speed | Unknown | ||||
| Discovered by | Mitchell Riley | ||||
| Year of discovery | 2006 | ||||
| |||||
Riley's breeder is a suprisingly small 38-cell quadratic growth pattern, discovered by Mitchell Riley in July 2006. It comprises a puffer train and two LWSSes. It produces a switch engine every 140 generations, filling three eighths of the Life plane. It has fewer cells than metacatacryst, and fits in a bounding box several orders of magnitude smaller.
It was originally discovered as a 40-cell pattern, but can be backtracked two generations by replacing the B-heptomino with a hexaplet.