p10 traffic light hassler

p10 traffic light hassler
x = 17, y = 20, rule = B3/S23 5b2o3b2o$5b2o3b2o4$4b3o3b3o$2o13b2o$2o2bobo3bobo2b2o$5bo5bo3$5bo5bo$2o2bobo3b obo2b2o$2o13b2o$4b3o3b3o4$5b2o3b2o$5b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ AUTOSTART THUMBSIZE 2 GPS 2 LOOP 10 ]]
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Pattern type	Oscillator
Number of cells	56
Bounding box	17 × 20
Period	10 (mod: 10)
Heat	44
Volatility	0.91 | 0.91
Kinetic symmetry	Unspecified
Discovered by	David Buckingham
Year of discovery	1983
Rules Outer-totalistic rules B3/S23 – B37/S2378 # of rules 23 = 8 Isotropic rules B3-ckqy/S23-ckq – B34jkqyz5-eijr6-in7/S234cekqtyz5acjkn6-k78
Glider synthesis Fewest gliders 16† Catagolue-generated RLE synthesis †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext introvert.cells RLE introvert.rle
Identifiers apgcode xp10_y133x33z66w595x595w66zccwkikxkikwcczy1ooxoo Pentadecathlon ID 56P10.2

P10 traffic light hassler is a period-10 oscillator found by David Buckingham on May 1, 1983, consisting of eight blocks hassling four traffic light predecessors. The version in the infobox is the introvert, with all the blocks on the sides of the traffic light towards the center. The extrovert is also possible, with the blocks closer to the edge:

x = 17, y = 20, rule = B3/S23 5b2o3b2o$5b2o3b2o4$2o2b3o3b3o2b2o$2o13b2o$4bobo3bobo$5bo5bo3$5bo5bo$4bobo3bob o$2o13b2o$2o2b3o3b3o2b2o4$5b2o3b2o$5b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART THUMBSIZE 2 GPS 2 LOOP 10 ]]

(click above to open LifeViewer) RLE: here Plaintext: here

Combinations of introverts and extroverts are also possible, and blocks can also be shared with other introverts or extroverts, or with another p10 oscillator.

The first known semi-natural appearance of this oscillator was in November 2014 in a soup found by Adam P. Goucher using apgsearch.

On January 7, 2020, Jeremy Tan reduced the syntheses for both introvert and extrovert to 22 gliders. Matti Ward and Ian07 further reduced the introvert synthesis to 18 gliders on January 9, and Jeremy Tan reduced the extrovert to 20 gliders the next day. On February 17, 2022, iNoMed found 16-glider syntheses for both versions.

External links

• Introvert at Adam P. Goucher's Catagolue
• Extrovert at Adam P. Goucher's Catagolue
• 56P10.2 at Heinrich Koenig's Game of Life Object Catalogs