Period-690 glider gun

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Period-690 glider gun
x = 52, y = 25, rule = B3/S23 11bo$11b3o$14bo$13b2o6$13b2o3b2o$13bo5bo2$14bo3bo$15b3o$33b2o$23b2o7bo bo15b2o$23b2o7bo17b2o$32b3o$12bo$12bobo$2o11bobo$2o11bo2bo15b3o$13bobo 16bo17b2o$12bobo17bobo15b2o$12bo20b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 60 Y 6 Z 8 ]]
Pattern type Gun
Number of cells 62
Bounding box 52×25
Period 690
Barrels 1
Discovered by Noam Elkies
Year of discovery 1996

Period-690 glider gun is a compound true period 690 glider gun found by Noam Elkies in July 1996. It is composed of a p30 queen bee shuttle pair and a p46 twin bees shuttle whose sparks occasionally react with each other. This is a very compact gun for such a high period and is used in many patterns requiring sparse glider streams.

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