Riley's breeder

	Riley's breeder
	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 135, y = 41, rule = B3/S23 133bo$134bo$130bo3bo$131b4o3$130bo$131bo$132bo$132bo$131b2o4$133bo$ 134bo$130bo3bo$131b4o9$96bo$97bo$93bo3bo$94b4o8$3bo$4bo$o3bo$b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] <nowiki></nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 135, y = 41, rule = B3/S23 133bo$134bo$130bo3bo$131b4o3$130bo$131bo$132bo$132bo$131b2o4$133bo$ 134bo$130bo3bo$131b4o9$96bo$97bo$93bo3bo$94b4o8$3bo$4bo$o3bo$b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] <nowiki></nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
	View static image
Pattern type	Breeder
Number of cells	38
Bounding box	135×41
Direction	Orthogonal
Period	140
Speed	c/2
Discovered by	Mitchell Riley
Year of discovery	2006
Pattern files
RLE	rileysbreeder.rle

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.

This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.