Period-22 glider gun

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Period-22 glider gun
x = 45, y = 21, rule = B3/S23 18b2o$19bo7bo$19bobo14b2o$20b2o12b2o2bo$24b3o7b2ob2o$24b2ob2o7b3o$24bo 2b2o12b2o$25b2o14bobo$35bo7bo$43b2o2$2o23bo$bo21bobo$bobo13b3o4b2o$2b 2o3bo8bo3bo$6bob2o6bo4bo$5bo4bo6b2obo9bo$6bo3bo8bo3b2o6bo$7b3o13bobo3b 3o$25bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 10 AUTOSTART OFF ]]
Pattern type Gun
Number of cells 86
Bounding box 45×21
Period 22
Barrels 1
Discovered by David Eppstein
Year of discovery 2000

Period-22 glider gun is a true period 22 gun discovered by David Eppstein on August 27, 2000. It uses two copies of the period-22 oscillator, 36P22, and was in fact found later on the same day as that oscillator. It is one of a relatively small number of known true period guns below period 78, where syringe-based guns become possible.

External links