Period-51 glider gun

Period-51 glider gun
x = 29, y = 38, rule = B3/S23 3bo12bo$2b2o12b3o$2bobo7bo6bo$12b3o3b2o$15bo$14b2o10bo$25bobo$26bo$17b o$16bobo$15b2ob2o$16bobo$17bo$25b2o$25bobo$27bo$27b2o5$2o$bo$bobo$2b2o $11bo$10bobo$9b2ob2o$10bobo$11bo$2bo$bobo$2bo10b2o$13bo$9b2o3b3o$9bo6b o7bobo$10b3o12b2o$12bo12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 7 GPS 17 LOOP 51 ]]
View static image
Pattern type	Gun
Number of cells	70
Bounding box	29 × 38
Period	51
Barrels	1
Discovered by	Nico Brown
Year of discovery	2022
Rules Outer-totalistic rules B3/S23 – B38/S23 # of rules 21 = 2 Isotropic rules B3/S23 – B34c8/S234c5e6n
Pattern files RLE period51glidergun2022.rle

Period-51 glider gun is a glider gun found by Nico Brown on November 2, 2022. In terms of its 29 × 38 bounding box, it is by far the smallest known gun of this period.

It can also be capped with eater 1s to produce a period-51 oscillator with only 84 cells, which surpasses 90P51 as the smallest known oscillator of period 51.