p124 lumps of muck hassler

p124 lumps of muck hassler
x = 39, y = 38, rule = B3/S23 20bo$14b2o3bobo3b2o$13bobo4bo4bobo$13bo13bo$10b2obo13bob2o$10b2obobob 7obobob2o$13bobo9bobo$13bobo9bobo$14bo3bobobo3bo$32bo$32bobo$31bobo$ 33bo$3bo$3b3o$6bo30b2o$5b2o30b2o3$13b3o$11b2o2bo$2o9bo2b2o16b2o$2o9b3o 18bo$17bo15b3o$16bobo16bo$5bo12b2o$5bobo$4bobo$6bo$12bo11bo$11bobo3b3o 3bobo$11bob4o3b4obo$8b2obo13bob2o$8b2ob2o2b2o3b2o2b2ob2o$11bo13bo$11bo bo4bo4bobo$12b2o3bobo3b2o$18bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 20 ZOOM 7 LOOP 124 ]]
View static image
Pattern type	Oscillator
Number of cells	146
Bounding box	39×38
Period	124
Mod	62
Heat	78.71
Volatility	0.82
Strict volatility	0.65
Discovered by	Dean Hickerson
Year of discovery	1994
Rules Outer-totalistic rules B3/S23 only Important rules Conway Life # of rules 20 = 1 Isotropic rules B3/S23 – B3/S234c6i7e
Glider synthesis Fewest gliders (cheapest variant) 66† Catagolue-generated RLE (cheapest variant) p124lumpsofmuckhassler_synth.rle †Can be constructed with 16 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext p124lumpsofmuckhassler.cells RLE p124lumpsofmuckhassler.rle
Identifiers apgcode (canonical) xp124_y7gx33y2o8zy0oox1612y4321z0ca22iaa4y1goy9g88br88gz8k80uuuy04670cosy8tv1w1hz0o801598gyg1fvx121zw11dd11yh255lm453zyao4cy44o68x11zy911y2cc apgcode (cheapest variant) xp124_yi33z066y366y0ca4y633y533y333zo48gy1g84oy5399ay9sik8y18kisz1j1y31j1ymgpgy3gpgz7952y12597ym3421y11243z0ooy3ooy5ooy64a6y0ccy3cczyooo

P124 lumps of muck hassler is a period-124 oscillator discovered by Dean Hickerson and Bill Gosper in 1994. It features a lumps of muck being hassled back and forth, involving two mechanisms.

1. One half of a lumps of muck is removed and the remaining active region evolves into a dove in 39 generations.
2. The dove evolves into the 3-tick descendant of stairstep hexomino in 23 generations, along with a large spark.

The first stage can be done in many ways, such as a middleweight emulator, a single eater 3 (by David Buckingham), or a regenerative loop catalyst. The stabilization using a block, an eater 1 and a clock is the smallest in terms of population, as shown in the infobox.

The second stage requires a quick suppression of the byproduct spark, which appears to be hard. Bill Gosper's original solution is to use the period-4 fountain. In April, 2010, David Buckingham reduced the bounding box with two copies of blocked p4-3, as shown in the infobox. On September 25, 2021, GUYTU6J found a stabilization using Merzenich's p31, reducing the population to 132 but increasing the bounding box. This is currently the only variant with a known glider synthesis.

Dean Hickerson also noted that arbitrarily large agar can be built using many copies of lumps of muck.

Image gallery

See also

• p22 lumps of muck hassler

External links

• p124 lumps of muck hassler at Adam P. Goucher's Catagolue