Twirling T-tetsons 2

Twirling T-tetsons 2
7b2o3b2o10b$6bo7bo9b$9bobo12b$7b2o3b2o10b4$21b3o$20b3ob$13bo10b$3o9b3o 9b$b3o20b$20b3ob$21b3o2$b3o20b$3o9b3o9b$13bo10b3$10b2o3b2o7b$12bobo9b$ 9bo7bo6b$10b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 WIDTH 480 HEIGHT 480 ZOOM 16 GPS 4 ]]
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Pattern type	Oscillator
Oscillator type	Shuttle
Number of cells	56
Bounding box	24 × 24
Period	60
Mod	15
Heat	83.2
Volatility	0.94
Strict volatility	0.68
Discovered by	Robert Wainwright
Year of discovery	1989
Rules Outer-totalistic rules B3/S23 – B37/S2378 # of rules 23 = 8 Isotropic rules B3-k/S23-ckq – B34kq5-e6-in7/S234ckyz5ackqr6-c78
Glider synthesis Fewest gliders 22† Catagolue-generated RLE synthesis Uploaded synthesis RLE twirlingttetsons2_synth.rle †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext twirlingttetsons2.cells RLE twirlingttetsons2.rle
Identifiers apgcode xp60_y37exe7z0gyecg2cz30k3w8sy1s8y1c2gcz3403zy6e7x7e Pentadecathlon ID 56P60.1

Twirling T-tetsons 2 is a period-60 oscillator that consists of a pre-pulsar hassled by killer toads. It was found by Robert Wainwright in 1989. Tanner Jacobi found a stable support for this oscillator on December 2, 2020, which was later reduced into a loaf spin by David Raucci on November 22, 2021, and synthesized by iNoMed the next day.

On June 19, 2022, Carson Cheng found a 30-glider synthesis of the original version of this oscillator. On December 24, 2023, Carson Cheng found a 5-glider killer toads synthesis which lowered the cost to 29 gliders. On December 28, 2023, after a 4-glider killer toads synthesis was found, Chris857 lowered the cost to 22 gliders.

The period-60 pipsquirter is a variant (Catagolue: here) of the twirling T-tetsons 2, with one quarter supported by a still life, through which the perturbation supplied by the pre-pulsar drifts to become the squirted pip.

Generation 4, which shows that the object being hassled really is a pre-pulsar

Gallery

x = 40, y = 40, rule = B3/S23 27bo$26bobo$26bobo$25b2ob3o$20b2o9bo$20b2o3b2ob3o$25b2obo2$4bo16b2o$3b obo14bo2bo$3bobo14bobo3bo$b3ob2o14bo3bobo$o10bo14bo$b3ob2o3bobo$3bob2o 4bo2$9bo5bo5bo$8bobo3bobo3bobo$4b2o2bo2bobo3bobo3bo$4b2o3b2o3bobo3bobo $15bo5bo7b2o3b2o$28bo2bo2b2o$29bobo$30bo2$28bo4b2obo$27bobo3b2ob3o$13b o14bo10bo$12bobo3bo14b2ob3o$13bo3bobo14bobo$16bo2bo14bobo$17b2o16bo2$ 11bo$9b6o3b2o$8bo4bo4b2o$9b3ob2o$11bobo$11bobo$12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 WIDTH 600 HEIGHT 480 AUTOSTART ZOOM 8 ]]

Stable form (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 51, y = 47, rule = B3/S23 23b2o$23bo2b2o$24b2ob3o$19b2o4bo4bo$19b2o3bo2b3o$24bo2bo2$3bo16b2o$2bo bo14bo2bo$2bobo14bobo3bo$b2ob2o14bo3bobo$bo8bo14bo$2bob2o3bobo$obob2o 4bo$2o$8bo29bo$7bobo26b3o$3b2o2bo2bo24bo$3b2o3b2o25b2o$16b3o3b3o$16bob o3bobo$16b3o3b3o14bo$38bobo$11bo27bo$10bobo$11bo14b3o3b3o$26bobo3bobo$ 26b3o3b3o$14b2o25b2o3b2o$15bo24bo2bo2b2o$12b3o26bobo$12bo29bo$49b2o$ 40bo4b2obobo$39bobo3b2obo$25bo14bo8bo$24bobo3bo14b2ob2o$25bo3bobo14bob o$28bo2bo14bobo$29b2o16bo2$23bo2bo$21b3o2bo3b2o$20bo4bo4b2o$21b3ob2o$ 23b2o2bo$26b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 WIDTH 600 HEIGHT 480 AUTOSTART ZOOM 8 ]]

A phase-shifted version (p59 instead of p60) found by Nico Brown on November 4, 2022 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

See also

• Traffic circle
• Tumbling T-tetson

External links

• Twirling T-tetsons 2 at the Life Lexicon
• Twirling T-tetsons 2 at Adam P. Goucher's Catagolue
• 56P60.1 at Heinrich Koenig's Game of Life Object Catalogs