AK-94
| AK-94 | |||||||||
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| Pattern type | Gun | ||||||||
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| Number of cells | 103 | ||||||||
| Bounding box | 38 × 25 | ||||||||
| Period | 94 | ||||||||
| Barrels | 2 | ||||||||
| Discovered by | Mike Playle | ||||||||
| Year of discovery | 2013 | ||||||||
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AK-94 is a 2-barrelled period-94 glider gun powered by the AK-47 reaction. The form shown to the right was completed by Mike Playle on May 9, 2013, who found additional stable catalysts with Bellman to eat the byproduct traffic lights.[1] Before discovery of these catalysts, removal of traffic lights required either multiple copies of the reaction as in P94S, or a special sparker as shown below.
| A pseudo p94 gun with a period of 188, using a period-4 mod-2 domino sparker found by Paul Callahan on July 11, 1994[2] (click above to open LifeViewer) RLE: here Plaintext: here |
A capped version of AK-94 is one of the honey farm shuttles, and it was the smallest known period-94 oscillator until the discovery of p94 R-pentomino hassler.
Glider synthesis
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.[3] On May 20, 2019, Jeremy Tan reduced this to 52 gliders for the one-barreled gun and 50 gliders for the two-barreled version.[4]
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 light predecessors die out naturally, there is no need for additional catalysts:
| Free-standing AK-94 in Pedestrian Life (click above to open LifeViewer) |
References
- ↑ Mike Playle (May 9, 2013). Re: What do you want out of (conway's) life this year? (discussion thread) at the ConwayLife.com forums
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on September 26, 2022.
- ↑ Martin Grant (July 11, 2014). Re: Scratch Your Heads: Glider Synthesis of Bellman One (discussion thread) at the ConwayLife.com forums
- ↑ Jeremy Tan (May 20, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
External links
- AK-94 at the Life Lexicon
- Capped AK-94 at Adam P. Goucher's Catagolue
- Recent Discoveries, part II at Game of Life News. Posted by Adam P. Goucher on May 29, 2013.
- Patterns
- Patterns with between 100 and 109 cells
- Patterns found by Mike Playle
- Patterns found in 2013
- Patterns that can be constructed with between 50 and 59 gliders
- Outer-totalistically endemic patterns
- Guns
- Linear growth
- Infinite growth
- Guns with period 94
- Guns with 2 barrels
- Non-flipping oscillators that turn 180 degrees