Period-2 catalysts

A collection of period-2 oscillators with catalytic properties.

Even periods only

Toad and Killer toads

2bo14bo$3bo14bo$3bo14bo$2b2o13b2o$bo14bo$o3bo10bo3b2o$4b2o13bo$4b2o14b3o$5bo16bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 3 ]] (click above to open LifeViewer)

4b2o$3bo2bo$3b3o3$bo$2o$2o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 ]] (click above to open LifeViewer)

10bo18bo$9bobo6b2o8bobo$6bo2bobo5bo10bobo2bo$5bobobob2o7bo6b2obobobo$4bobobobo7b2o9bobobobo$4bo3bo2b3o12b3o2bo3bo$2bobobobob2o16b2obobobobo$bobobob2o4bo5b2o5bo4b2obobobo$bobobobo2bo3bo4b2o4bo3bo2bobobobo$2ob2ob2obo4bo4b2o4bo4bob2ob2ob2o$bobobobo2bo3bo3b4o3bo3bo2bobobobo$bobobob2o4bo4b4o4bo4b2obobobo$2bobobobob2o6b4o6b2obobobobo$4bo3bo2b3o12b3o2bo3bo$4bobobobo9b2o7bobobobo$5bobobob2o6bo7b2obobobo$6bo2bobo10bo5bobo2bo$9bobo8b2o6bobo$10bo18bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 18 ]] Use as a cell birth suppressor. (oscillator found by HotdogPi) (click above to open LifeViewer)

13b2o$13bo$2b2o7bobo18b2o8b3o$o4bo5b2o17bo4bo5b3o$6bo29bo$o5bo23bo5bo$b6o24b6o$11b2o28b3o$11bobo28b3o$13bo$13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 ]]

How killer toads catalyse differently than Eater 1s (click above to open LifeViewer)

Traffic stop

x = 23, y = 28, rule = B3/S23 b2o$obo$obob2o$bobobo$3bo$2b2o$b3o$b3o8bobo$b3o8bobo$b3o8b3o$2b2o$3bo$ bobobo$obob2o$obo$b2o4$13b3o2$11bo$11bo$11bo$19b2o$13b3o3bobo$21bo$21b 2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 8 ZOOM 10 HEIGHT 400 ]] p76 pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here

x = 40, y = 12, rule = B3/S23 2b3o30b3o2$o5bo2b2o18b2o2bo5bo$o4b2o4bo16bo4b2o4bo$o11bo14bo11bo$11b2o 14b2o3$5b2o26b2o$5bo28bo$6b3o22b3o$8bo22bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 19 ]] Raucci's p38 (click above to open LifeViewer) RLE: here Plaintext: here

x = 37, y = 15, rule = B3/S23 24b2o$24b2o$36bo$10b2o22b3o$2o7bobo13b2o6bo$2o7bo15b2o6b2o$9b3o4$9b3o 21b3o$2o7bo20b2o$2o7bobo13bo4b2o$10b2o11bobo4bobo$24b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 60 ]] Current smallest p46 gun (click above to open LifeViewer) RLE: here Plaintext: here

Antiphase why bother

o14bo$o14bo$2o13b2o2$2bo14bo$bobo12bobo$2bo14bobo$14b2obo$17bob2o$15bobo$16bobo$17bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 ]]

(click above to open LifeViewer)

x = 51, y = 33, rule = B3/S23 32bo$31bobo$14bo17bobo$12b2o15b2obo$8b2o4b2o16bob2o$8b2o3bo16bobo$31bo bo$32bo3$14b3o$12b2o2bo$12bo2b2o32b2o$12b3o34bo$47bobo$47b2o2$2b2o$bob o$bo34b3o$2o32b2o2bo$34bo2b2o$34b3o3$18bo$17bobo$18bobo16bo3b2o$15b2ob o16b2o4b2o$18bob2o15b2o$16bobo17bo$17bobo$18bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 10 GPS 50 HEIGHT 460 WIDTH 500 ]]

p100 Lumps of muck hassler which shows off Antiphase why bother's use as a catalyst. (click above to open LifeViewer) RLE: here Plaintext: here

Fox and clock

[[:RLE:Foxandclockcatalystexamples]] #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 ZOOM 12 HEIGHT 500 ]]

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

2bo$3o$obo$o$10b2o$11bo$10bo$11b3o$13bo$bo4bo$bobo2bobobo$obo3bobo$2bo8b2o$7bo2bo$8bo$8bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 20 ]]

p2 SW-2 using the catalyst (click above to open LifeViewer)

Unnamed catalyst

5b2obo2bo$6bob4o2b2o$4bobo7bo2bo$2b3o2b6o3b2o$bo6bo3b4o$b6o2b2obo2bo$6b3obo2bo$b2ob2o7bobo$obob2obo2bo3b2o$obo4bobobo$bob2ob2o2bo$3bo3bo$bo2b2o4b3o$b2obo5b3o$4bo4bo3bo$4b2o4b3o$10b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 15 ]]

Catalyses regions with all six closest cells on (click above to open LifeViewer)

Blinker+toad

Used in p82 lumps of muck hassler & 42P38.

2b3o$4bo$bo2bo$b3o4$3o$4b3o$5b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 ]]

(click above to open LifeViewer)

66P106 catalyst

4bo3bo$4bo3bo$5b3o2$bo$bobo$obo$2bo2b3o$9b3o$10b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 ]]

(click above to open LifeViewer)

Odd periods only

Odd traffic stop

4b2o$5bo$5bobo$6b2o$10b3o4b3o$17bo$b2o5bo5bo2b3o$bobo4bo5bo$3bo4bo5bo$3b3o$b2o3bo$o2b4o6b2o$2obo9bo$3bob2o7b3o$3bobo10bo$2b2obobo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 ]]

(click above to open LifeViewer)

x = 52, y = 41, rule = B3/S23 44b2o$44bobo$35bo10bo2b2o$35b3o7b2obobo$38bo9bo$14bo22b2o6b4o$14b3o28b o3b2o$17bo28b3o2bo$16b2o13b2o4bo5bo4bob2o$30bo2bo3bo5bo4bo$31bobo3bo5b o3b2o$32bo$39b3o$44b2o$18b3o23bobo$18bo2bo24bo$22bo23b2o$18bo2bo$18b3o $12bobo$13bo24bo$37bobo$31b3o$30bo2bo$4b2o23bo$5bo24bo2bo$5bobo23b3o$ 6b2o$10b3o$19bo$3b2o3bo5bo3bobo$3bo4bo5bo3bo2bo$2obo4bo5bo4b2o13b2o$o 2b3o28bo$b2o3bo28b3o$3b4o6b2o22bo$3bo9bo$bobob2o7b3o$b2o2bo10bo$5bobo$ 6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 40 ZOOM 9 HEIGHT 500 ]]

The 2nd known period-79 oscillator engine, showing off a loaf+odd traffic stop catalyst. (click above to open LifeViewer) RLE: here Plaintext: here

Blinker+eater 1+eater bridge eater

2o$bo$bobo$2b2o$6bo3b2o$6bo2b3o$6bo3b2o3$4b2o$3bobo$b3obobo$o5b2o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 ]]

(click above to open LifeViewer)

See also

• Periodic catalyst