Raucci's p102

Raucci's p102
x = 41, y = 27, rule = B3/S23 17b2o$18bo$15b3o$15bo2$36bo2bo$36bo$35bo4bo$34bobo2b2o$32b2obo3$32bo2b o$5b2o11b3o13b2o$5b2o14b2o$5b2o10bo3b2o$6bo9bo2bob2o$5bobo7bo4bo$3obob o9b3o$4obo$4bo3$25bo$23b3o$22bo$22b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 8 GPS 12 ]]
View static image
Pattern type	Oscillator
Number of cells	67
Bounding box	41 × 27
Period	102 (mod: 51)
Heat	47
Volatility	0.93 | 0.76
Kinetic symmetry	n.c
Discovered by	David Raucci
Year of discovery	2022
Rules Outer-totalistic rules B3/S23 only # of rules 20 = 1 Isotropic rules B3/S23 – B34c/S234ce6i
Glider synthesis Fewest gliders 17† Catagolue-generated RLE synthesis †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext rauccisp102.cells RLE rauccisp102.rle
Identifiers apgcode xp102_ybc453zyeg8w4kk8y2gg8kbw9czy1ooy678c48by5408czooog8lb4zy01yeggozyi32

Raucci's p102 is a period-102 oscillator found by David Raucci on May 25, 2022. It consists of an unnamed active object being hassled by two unices and two fishhooks; the fishhooks use the tail catalysis. It is the smallest known period-102 oscillator, having 67 cells.

It can be synthesized in 17 gliders. Each unix takes five, each fishhook takes two, and the active object takes three.

The active object also appears in 45P25 (Catagolue: here) and 44P49; a predecessor is shown in the gallery below.

Gallery

x = 41, y = 37, rule = B3/S23 23b2o$23b2o3$23b3o$18b2o2bob2o$18b2o2b2o$22b2o3$13bo23b2o$12bobo3b2o 16b4o$12bobo2bobo15bo2bobo$13bo3b2o15bobo2b2o$33bobo$32b2o$12bo19b3o$ 11bobo19bobo$5b2o3bo3bo19b2o$5b2o4bo2bo$13b2o$6bo$5bobo$2o2bo2bo$2obo$ 4b2o4$18b4o$17bo4bo$16bobo3bo$15bobo3bo$15bo$15bo$15bo2bo$16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 12 THUMBSIZE 2 ZOOM 8 AUTOSTART HEIGHT 320 ]]

A larger but sparkier version (click above to open LifeViewer) Catagolue: here

3o2$3b2o$2bo2bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 8 THUMBSIZE 2 ]]

The hassled object evolves from a beehive and a blinker that are too close to each other (click above to open LifeViewer)

x = 46, y = 44, rule = B3/S23 36bo$24bo9b3o$23bobo7bo$7b2o14bobo7b2o$7b2o12b3ob2o$7b2o11bo$7bo13b3ob 2o10b2o5b2o$6bobo14bob2o3b2o5b2o4bobo$7bobob3o15bo3bo3b3o3b2o$8bob4o 15bo4bo3bo2bobo$9bo19b2o4bo2b2o2b2o$20b2o17bobo$19bobo6bo4b2o4bo3bo$ 28bo4bo4bobo3bo$18bo2bo2bobo10bo5b2o$18bo4bo2bo3b3o$19bo2bo3bo10bob2o 2bo$20bob2o13bo2b4o$7b2o10bo2bo15bobo$6bo2b2o8b3o15b2obobobo$17bo2bo 18bobob2o$6b2o4bo5b2o5b2o12bobo$8b2o15b2o13b2o$10b2obo$11bobo11bo$2o7b 2o2bo10bobo$obo6bo2b2o10bo2bo2b2o$2bo7b3o15bob2o$2b2o7bo14b2o7$14bo2bo $17bo$13bo4bo$13b2o2bobo$18bob2o3$18bo2bo$18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 21 THUMBSIZE 2 ]]

Raucci's p102 is useful in making guns of certain periods. When an edgy domino spark is supplied, it creates a glider. The sparker shown here is period 21; the period of the gun is LCM(102,21) = 714. (click above to open LifeViewer)

External links

• Raucci's p102 at Adam P. Goucher's Catagolue