AK-94

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AK-94
#C AK94 gun #C Mike Playle, 9 May 2013 #C http://conwaylife.com/wiki/AK-94 x = 38, y = 25, rule = B3/S23 15bo7b2o$15b3o5b2o$18bo$17b2o16b2o$30b2o2bo2bo$30bobo2b2o$19bo13b2o$5b o12bob2o12bo$5b3o10bo2bo12bob2o$8bo10b3o4bo4b2obo2bo$7b2o15bo2bo3b2ob 2o$25b2o3$2b2ob2o22b2o$o2bob2o22bo$2obo26b3o$3bo28bo$3b2o$b2o2bobo$o2b o2b2o$b2o16b2o$19bo10bo$13b2o5b3o8bo$13b2o7bo6b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 ZOOM 11 GPS 12 ]]
Pattern type Gun
Number of cells 103
Bounding box 38×25
Period 94
Barrels 2
Discovered by Mike Playle
Year of discovery 2013

AK-94 is a 2-barrelled period-94 glider gun that was completed by Mike Playle on May 9, 2013.[1] Like P94S, it is powered by the AK-47 reaction, but additional catalysts were found with Bellman to eat the byproduct traffic lights.

In July 2014 Martin Grant found a 60-glider synthesis for the one-barreled gun, which can be trivially turned into a two-barreled gun by removing two gliders.[2] On May 20, 2019, Jeremy Tan reduced this to 52 gliders for the one-barreled gun and 50 for the two-barreled version.[3]

A capped version of AK-94 is the smallest known period-94 oscillator with a population of 110 cells.

In other rules

In EightLife (B3/S238), the AK-94 has a slightly different evolutionary sequence from generation 34 to 37 that does not destroy the gun, so one can actually use AK-94 under this rule.

In Pedestrian Life (B38/S23), where traffic lights die out naturally, there is no need for additional catalysts:

x = 12, y = 25, rule = B38/S23 2bo7b2o$2b3o5b2o$5bo$4b2o10$4bo$3bobo$2bo3bo$2bo3bo$2bo3bo$3bobo$4bo2$ 6b2o$6bo$2o5b3o$2o7bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 ZOOM 8 ]]
Free-standing AK-94 in Pedestrian Life
(click above to open LifeViewer)

Gallery

x = 25, y = 38, rule = B3/S23 4bo3b2o$3bobo2bo$3bobo4bo$4bob5o$6bo$5bo3b2o5b2o2b2o$4bo4b2o5bo3bo$4b2o8bobo 4bo$14b2o4b2o5$2o$2o$7b3o13b2o$6bo3bo12bo$5bo5bo9bobo$6bo3bo10b2o$2b2o3b3o$bo bo$bo$2o$23b2o$23b2o5$3b2o4b2o$3bo4bobo8b2o$4bo3bo5b2o4bo$3b2o2b2o5b2o3bo$18b o$14b5obo$14bo4bobo$16bo2bobo$15b2o3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 7.5 ]]
SKOP 188: AK-94 with boat-bits
(click above to open LifeViewer)
RLE: here Plaintext: here

References

  1. Mike Playle (May 9, 2013). Re: What do you want out of (conway's) life this year? (discussion thread) at the ConwayLife.com forums
  2. Martin Grant (July 11, 2014). Re: Scratch Your Heads: Glider Synthesis of Bellman One (discussion thread) at the ConwayLife.com forums
  3. Jeremy Tan (May 20, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links