p39 pi-heptomino hassler

p39 pi-heptomino hassler
x = 35, y = 32, rule = B3/S23 9b2o$8bobo$8bo$3bob2ob2o$3b2obo$6bo$6b2o5$22b2o3b2o$22bobo2b2o$10b3o 10bo$2obo6bobo$ob2o6bobo$24bo$23b2obo$24bobo$23bo$23bobo$22bo3bo$14b2o 7bo2bo$14b2o8b2o$19b2o7b2o2b2o$19b2o6bo2bo$27bo4b3o$28bob2obo$29bo2$ 25b2o$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] [[ THUMBSIZE 2 GPS 13 ZOOM 8 ]]
View static image
Pattern type	Oscillator
Number of cells	77
Bounding box	36 × 32
Period	39 (mod: 39)
Heat	54.7
Volatility	0.91 | 0.58
Kinetic symmetry	Unspecified
Discovered by	goldenratio iNoMed
Year of discovery	2022
Rules Outer-totalistic rules B3/S23 – B38/S238 # of rules 22 = 4 Isotropic rules B3/S23 – B34e8/S234c8
Glider synthesis Fewest gliders (canonical) 32† Catagolue-generated RLE (canonical) synthesis Fewest gliders (cheapest variant) 29† Catagolue-generated RLE (cheapest variant) synthesis †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext p39piheptominohassler.cells RLE p39piheptominohassler.rle
Identifiers apgcode (canonical) xp39_yl330gggzyaoox66wg88g34530571zyj3ripz6426y26c6y5g8hwggzyi11x11zxc48f1o8zy4123 apgcode (cheapest variant) xp39_xog8o0e93zy232yn66z4s0gy1go4ogy46a4w66yeggzw11yeccw4acy413431y11074zyaccyn8ozyz0oie03213

For other period-39 pi-heptomino hasslers, see list of p39 pi-heptomino hasslers

p39 pi-heptomino hassler is a period-39 oscillator discovered by goldenratio and iNoMed on January 17, 2022, and the first such oscillator not based on an LCM or glider loop mechanism. It consists of a Beluchenko's p13, 2 blocks, a boat, snake and a hook with tail on bookend hassling a pi-heptomino. A dimer form exists that has only stable catalysts.

x = 51, y = 30, rule = B3/S23 9b2o$8bobo$8bo$3bob2ob2o$3b2obo$6bo$6b2o27b2o$35b2o4$22b2o3b2o$22bobo 2b2o$10b3o10bo$2obo6bobo25bobo6b2obo$ob2o6bobo25bobo6bob2o$27bo10b3o$ 22b2o2bobo$22b2o3b2o4$14b2o$14b2o27b2o$44bo$44bob2o$41b2ob2obo$42bo$ 40bobo$40b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 GPS 13 AUTOSTART ]]

The dimer form mentioned above (click above to open LifeViewer) RLE: here Plaintext: here

A glider synthesis for this oscillator was found on January 21. On May 18, it was discovered by wwei23 that the p39 pi hassler could itself be used to support a different p39 pi-hassling reaction. Without the hook with tail on bookend, it produces a spare block that is used below:

x = 34, y = 42, rule = B3/S23 4b2o$2obobo5bo$ob2o5b3o$5bo2bo$b3o3bobo$bo2bob2obo$3b3ob2o$2bobo10b2o $15bo$bo2bo11bo$b2o12b2o2$15b2o$14bobo$8bobo4bo$3b2o4b2o5b3o$2bobo4bo 8bo$2bo$b2o6b2o$9b2o2$22b2o3b2o$22bobo2b2o$23bo$2obo6b2o$ob2o7b2o$12b 2o$12bobob2o5b3o$26b2o$23b4o$25bobo$24bobo$14bo9b2o$14b2o4bo9bobo$19b o4bo4bob2o$19bo3bo4bob2obo$20bo5bob2obobo$25bo5bobo3$24bo2bo$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 7 GPS 13 AUTOSTART ]]

The p39 pi hassler mentioned above (click above to open LifeViewer)

On January 23, 2024, Chris857 found a 29-glider synthesis of the dimer form of the oscillator with eaters instead of snakes.

External links

• p39 pi-heptomino hassler at Adam P. Goucher's Catagolue