Period-45 glider gun
|Period-45 glider gun|
|View static image|
|Number of cells||147|
|Discovered by||Matthias Merzenich|
|Year of discovery||2010|
A further improvement by Tanner Jacobi in 2015, replacing three of the pentadecathlons with custom still-lifes, is given on the right. Using the glider-producing pentadecathlon reaction, the p45 gun can be 4-barrelled.
Glider syntheses for the one-barrelled and four-barrelled versions of the original gun (costing 46 and 40 gliders respectively) were posted by Jeremy Tan on January 5, 2020, in response to a less efficient synthesis by Entity Valkyrie using a different method.
- Matthias Merzenich (April 29, 2010). "Re: Pattern of the Year 2010 competition". Retrieved on March 18, 2016.
- Tanner Jacobi (April 12, 2015). "Re: Execution of Old Guns by Variable-Speed Firing Squad". Retrieved on March 18, 2016.
- Jeremy Tan (January 5, 2020). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums