Fake glider

A fake or counterfeit glider is a spaceship in a cellular automaton, other than Conway's Game of Life, that matches Life's glider in at least one of its phases but evolves differently. Whereas the glider has period 4 and moves diagonally at c/4, fake gliders can have different periods and move in different directions at different speeds.

Examples

The c/12 diagonal spaceship with the apgcode xq12_153 in the non-totalistic rule B2e3-j4arw5n/S23-a is a fake glider:

x = 3, y = 3, rule = B2e3-j4arw5n/S23-a 2o$obo$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GRID GRIDMAJOR 0 GPS 4 AUTOSTART THUMBLAUNCH THUMBSIZE 2 TRACKLOOP 12 -1/12 -1/12 ]]

(click above to open LifeViewer) Catagolue: here

The c/2 orthogonal spaceship in the rule B3-nqr4acew5y6/S1e2-a34wz is a fake glider:

x = 3, y = 3, rule = B3-nqr4acew5y6/S1e2-a34wz 3o$o$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GRID GRIDMAJOR 0 GPS 4 AUTOSTART THUMBLAUNCH THUMBSIZE 2 TRACKLOOP 4 0 -1/4 ]]

(click above to open LifeViewer)

Likewise, there is a photon in the rule B2a3a4r/S3j that looks like a glider.

x = 3, y = 3, rule = B2a3a4r/S3j bo$b2o$obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GRID GRIDMAJOR 0 GPS 4 AUTOSTART THUMBLAUNCH THUMBSIZE 2 TRACK 1 0 LOOP 2 ]]

(click above to open LifeViewer) Catagolue: here

The glider in B3ai45/S1e3 goes the opposite direction a glider should.

x = 3, y = 3, rule = B3ai45/S1e3 bo$2bo$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 GRID GRIDMAJOR 0 GPS 8 AUTOSTART THUMBLAUNCH THUMBSIZE 2 TRACK -1/2 1/2 LOOP 4 ]]

(click above to open LifeViewer)

See also

• Anti-glider
• Fake xWSS

External links

• Counterfeit Gliders (discussion thread) at the ConwayLife.com forums