Achim's p11

Achim's p11
x = 22, y = 22, rule = B3/S23 10b2o$10b2o$5bo10bo$4bobo8bobo$3bobo3bo2bo3bobo$2bobo4bo2bo4bobo$3bo5b o2bo5bo3$4b3o8b3o$2o18b2o$2o18b2o$4b3o8b3o3$3bo5bo2bo5bo$2bobo4bo2bo4b obo$3bobo3bo2bo3bobo$4bobo8bobo$5bo10bo$10b2o$10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 24 GPS 4 LOOP 11 ]]
View animated image
View static image
Pattern type	Oscillator
Number of cells	72
Bounding box	22 × 22
Period	11 (mod: 11)
Heat	68.4
Volatility	0.90 | 0.90
Kinetic symmetry	*k
Discovered by	Achim Flammenkamp
Year of discovery	1994
Rules Outer-totalistic rules B3/S23 – B38/S236 # of rules 22 = 4 Isotropic rules B3-ky/S2-e3-ek – B34cy5-ejny6-kn7c8/S234eiktz5acenr67e
Glider synthesis Fewest gliders 42† Catagolue-generated RLE synthesis Uploaded synthesis RLE achimsp11_synth.rle †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext achimsp11.cells RLE achimsp11.rle
Identifiers apgcode xp11_xg8k8x33x8k8gzw121ow111111wo121z33xfy6fx33zw25ak8022222208ka52zy633 Pentadecathlon ID 72P11.1

Achim's p11 is a period-11 oscillator discovered by Achim Flammenkamp on August 4, 1994.

The first known semi-natural appearance of this oscillator was in December 2014, in a symmetric soup found by Dongook Lee using apgsearch. 1 in 14.4 million even-width eightfold symmetric soups (D8_4) form an Achim's p11.

Glider synthesis

In February, 2000 Mark Niemiec created a 96-glider synthesis for this oscillator. It was later improved to 75 gliders by Jeremy Tan on July 11, 2019, followed by 63 gliders due to improvements by Matti Ward and toroidalet later the same day. A 46-glider synthesis was found in August 2022 by Carson Cheng. A 42-glider synthesis was found in October 2023 by KtT.

Gallery

x = 29, y = 22, rule = B3/S23 10b2o$10b2o$5bo10bo$4bobo8bobo$3bobo10bobo$2bobo3b6o3bobo$3bo14bo2$5bo 10bo$5bo10bo$2o3bo10bo3b2o$2o3bo10bo3b2o$5bo10bo$5bo10bo10b2o$23b3o2bo $3bo14bo7b2o$2bobo3b6o3bobo2bo$3bobo10bobo3bo$4bobo8bobo8b2o$5bo10bo6b 3o2bo$10b2o15b2o$10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 16 ]]

fumarole on Achim's p11, a period-55 oscillator (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

See also

• Achim's p4
• Achim's p8
• Achim's p16
• Achim's other p16
• Achim's p144
• 38P11.1

External links

• Achim's p11 at Adam P. Goucher's Catagolue
• 72P11.1 at Heinrich Koenig's Game of Life Object Catalogs
• Seminatural (D8_4) stator variants of Achim's p11 (Catagolue)