98P25

98P25
x = 38, y = 23, rule = B3/S23 9b2o4b2o7b2o$9bobo2bobo7b2o$11bo2bo$10bo4bo$10b2o2b2o$12b2o2$36b2o$2o 24bo6b2o2bo$o2b2o19b2obo5bob2o$b2obo19bo2bo4bo$5bo5b3o10b3o5bo$5bo4bo 2bo19bob2o$b2obo5bob2o19b2o2bo$o2b2o6bo24b2o$2o2$24b2o$22b2o2b2o$22bo 4bo$23bo2bo$12b2o7bobo2bobo$12b2o7b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 10 LOOP 25 ]]
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Pattern type	Oscillator
Number of cells	98
Bounding box	38 × 23
Period	25
Mod	25
Heat	84.2
Volatility	0.87
Strict volatility	0.56
Discovered by	Noam Elkies
Year of discovery	2002
Rules Outer-totalistic rules B3/S23 – B38/S238 # of rules 22 = 4 Isotropic rules B3-k/S23-c – B34cz5e6c8/S234ct6i8
Glider synthesis Fewest gliders 71† Catagolue-generated RLE synthesis Uploaded synthesis RLE 98p25_synth.rle †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext 98p25.cells RLE 98p25.rle
Identifiers apgcode xp25_y53pmwmp3y333zo80ggy311y6gg8gy1o8gkczg99gp6y0ciaey63221y03c84koz11ygo8448ozy866y3643w346

98P25 is an unnamed period-25 oscillator discovered by Noam Elkies in October 2002. In terms of minimum population, it was the smallest known period-25 oscillator until the discovery of an improved version of the pattern. The improved version replaces the west and east fumaroles with eater 1s.

It works by using four fumaroles and two blocks to hassle two honey farm predecessors.

x = 32, y = 23, rule = B3/S23 4b2o4b2o9b2o$4bobo2bobo9b2o$6bo2bo$5bo4bo$5b2o2b2o$7b2o21b2o$30bo$2o 26bobo$bo26b2o$bobo18b3o$2b2o16b2ob2o$9bo12bo$7b2ob2o16b2o$7b3o18bobo$ 2b2o26bo$bobo26b2o$bo$2o21b2o$21b2o2b2o$21bo4bo$22bo2bo$9b2o9bobo2bobo $9b2o9b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 10 LOOP 25 Y 0 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 320 ]]

A slightly smaller version (the current record), 88P25. (click above to open LifeViewer) RLE: here Plaintext: here

Half of this oscillator can be replaced by a toaster, as shown below.

Image gallery

A related period-25 oscillator that hassles only one honey farm predecessor RLE: here

The original form of this oscillator used two copies of eater 1 rather than blocks. RLE: here

See also

• Honey farm
• P18 honey farm hassler
• P35 honey farm hassler

External links

• 98P25 at Adam P. Goucher's Catagolue

• 88P25 at Adam P. Goucher's Catagolue