Twogun
x = 39, y = 27, rule = B3/S23
27bo$27b4o$11bo16b4o$10bobo5b2o8bo2bo5b2o$3b2o3b2o3bo14b4o5b2o$3b2o3b
2o3bo4bobob2o3b4o$8b2o3bo5b2o3bo2bo$10bobo10bo$11bo8bo2bo2$26bobo$28bo
$24bo$26bo$25bo2$11b2o$11b2o4bo$2o6b2o6b5ob2o$2o5b3o5bo2b2o4bo$8b2o5b
2o8bo12bo$11b2o4bo7bo10bobo$11b2o12bo11b2o$24bo8b2o$22b2o9bobo$35bo$
35b2o!
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View static image
Pattern type
Gun
Number of cells
113
Bounding box
39 × 27
Period
60
Barrels
1
Discovered by
Bill Gosper
Year of discovery
1970
A period-60 glider gun is any glider gun with true period 60.
The first true period 60 gun to be discovered is the Twogun , found by Bill Gosper ; it is shown in the infobox. It is composed of two Gosper glider guns . There are several other ways to create a p60 gun from two p30 guns using period-doubling reactions.
A smaller p60 gun with bounding box 36 × 27 = 972 cells, containing Eye of Sauron , was found by 2718281828 in November 2018 ,[1] and reduced by Simon Ekström to 35 × 27 = 945 cells on the next day.[2]
In November 2022 , a smaller gun (36 × 23 = 828 cells) was found by Entity Valkyrie 2 ;[3] Note that the still life it uses as a catalyst , xs29_8e1lmz3lla252z056 , can be replaced with the smaller xs25_2lla8k8z3egld , which has occurred naturally, making it Spartan .
On March 19, 2024, iNoMed found a 27 × 30 = 810 -cell gun using Karel's p15 and 5blink to hassle a honey farm ; this is the smallest known true period 60 gun.
x = 24, y = 27, rule = B3/S23
2o$obo8bo$bobo2b2o2bobo4b2o$3b3obo3bo4bobo$o3bo11bo$o8bo4b2obo$o3bo3b2o4bo2bo$4bob2o8b2ob2o$5bo13bobo$12b2o5bobo$11bo2bo3b2ob2o$12bobo7bo$12b3o3b2obo$18b2obobo$22b2o2$bo6bo$3bo2bo$3bo2bo$3bo2bo$bo6bo3$18bobo$b8o10b2o$bob4obo10bo$b8o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
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The smallest known true period 60 gun as of 2024[4] (click above to open LifeViewer )
x = 33, y = 23, rule = B3/S23
3bo$3b3o$6bo$5b2o$10b2o$b2o6bo2bo12bo4bo$2bo6bo2bo10b2ob4ob2o$bo7bo15bo4bo$b2o7bo$3bo7bo2bo$b2o2bo6b2o$o2b2obo$3o2bo13b2o$3b2o14bobo$2o19bo$bob2o16b2o$bo2bo$2b2o2$6b2o$7bo6bo$4b3o8b2o$4bo9b2o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
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Entity Valkyrie 2's gun[3] (click above to open LifeViewer )
x = 35, y = 26, rule = B3/S23
23bo$23b4o$7bo16b4o$6bobo5b2o8bo2bo5b2o$4b2o3bo14b4o5b2o$4b2o3bo4bobob
2o3b4o$4b2o3bo5b2o3bo2bo$2o4bobo10bo$o2bo3bo8bo2bo$b3o$15bo$b3o10b3o$o
bo9b2o3bo$o3bo7b3o2b2o$b4o12bobo$9b2o2b4ob3o$b2o6b2obo4bo3bo$b2o5bobob
ob2obo3b2o$7b2o3bob2obobobo$8bo3bo4bob2o$9b3ob4o2b2o13bo$10bobo19bobo$
11b2o2b3o15b2o$12bo3b2o$13b3o$14bo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
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A reduction by Simon Ekström [2] of a gun found by 2718281828 in 2018[1] (click above to open LifeViewer )
x = 46, y = 28, rule = B3/S23
15bo15b2o$3b2o10bo15bobob2o$4bo10bo17bob2o$4bobo8b2o15b2o$5bobo10bo16b
2o$6bo3b2o2bo4bo16bo$10b2o7bo16bobo$3o12b3o19b2o$3o$bo27bo$bo26b3o$bo
16b2o7b5o6b2o$obo13b2o2b2o4b2o3b2o5bo$14b2o4b2o5b5o7b3ob2o$11bo10bo4bo
3bo9bob2o$obo7b3obob4o2bo5bobo$bo7bo2b4obob3o7bo12b3o$bo7bo10bo15bo5bo
2bo$bo8b2o4b2o18bobo5b2o$3o7b2o2b2o13b2o8b2o$3o9b2o14bo2bo7b2o$29b2o8b
2o$36bobo$36bo$7b3o4b3o$6bob3o2b3obo11bo$7b2ob4ob2o13bo$28b3o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 ZOOM 8 WIDTH 600 HEIGHT 400 THEME 6 GPS 12 AUTOSTART KILLGLIDERS ]]
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A gun found on July 19, 2021 [5] [6] [7] [8] (click above to open LifeViewer )
x = 35, y = 40, rule = B3/S23
19bo$18b3o$30bo$30bo$18b3o$30bo$18bobo8bobo$18bobo$29b3o$18b3o2$29b3o$
18b3o$2o17bo9bobo$bo28bo$bobo$2b2o26bo$30bo2$17b3o$15b3o$30bo$4bo25b2o
$4bo24bobo2$4bo$3bobo9bo$14b3o12b3o$3b3o22bo3bo$27bo5bo$14b3o$3b3o20bo
7bo$14bobo9bo7bo$3bobo8bobo$4bo22bo5bo$14b3o11bo3bo$4bo24b3o$4bo$14b3o
$15bo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
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A gun found by EvinZL on August 7, 2022 ,[9] based on a p60 LoM hassler found by Carson Cheng earlier the same day[10] (click above to open LifeViewer )
See also
References
↑ 1.0 1.1 2718281828 (November 12, 2018). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ 2.0 2.1 Simon Ekström (November 13, 2018). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ 3.0 3.1 Entity Valkyrie 2 (November 18, 2022). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ iNoMed (March 19, 2024). Message in #cgol on the Conwaylife Lounge Discord server
↑ Matthias Merzenich (July 19, 2021). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ Adam P. Goucher (July 19, 2021). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ Matthias Merzenich (July 19, 2021). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ David Raucci (July 19, 2021). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ EvinZL (August 7, 2022). Re: Gun Discussion Thread (discussion thread) at the ConwayLife.com forums
↑ Carson Cheng (August 7, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
External links