Racetrack

Racetrack
x = 6, y = 4, rule = B3/S23 3b2o$b3obo$o4bo$b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 48 ]]
View static image
Pattern type	Induction coil
Number of cells	12
Bounding box	6 × 4
Static symmetry	C1
Discovered by	Unknown
Year of discovery	Unknown
Pattern files Plaintext racetrack.cells RLE racetrack.rle

For other uses of 'Racetrack', see Racetrack (disambiguation).

Racetrack is an induction coil.

It can be seen as containing a photonegative Q-pentomino.

It can be welded onto itself to form racetrack-weld-racetrack (shown below), four of which form cloverleaf interchange.

x = 6, y = 6, rule = B3/S23 4bo$3bobo$3bobo$b2o2bo$o4bo$b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 24 ]]

racetrack-weld-racetrack (click above to open LifeViewer) RLE: here Plaintext: here

Together with an unnamed still life (apgcode xs24_259aczcid1d93), the cis-mirrored racetrack is the largest still life (with 24 cells) known to be constructible in 4 gliders.

x = 6, y = 9, rule = B3/S23 3b2o$b3obo$o4bo$b4o2$b4o$o4bo$b3obo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 24 ]]

cis-mirrored racetrack (click above to open LifeViewer) Catagolue: here

External links

• Racetrack and ortho-beacon at Adam P. Goucher's Catagolue