F131

F131
x = 37, y = 35, rule = B3/S23 17bo$16bobo$2o15b2o2b2o$bo19b2o$bobo$2b2o7$2bo$2bobo$2b3o$4bo$34bo$34b o$23b2o9b3o$23b2o11bo5$27b2o$28bo$25b3o$12b2ob2o8bo$11bobobobo$9b3o3bo bo$8bo4bobob3o$9b3ob2obo3bo$11bo4bo2b2o$13b3o$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 8 LOOP 132 GPS 20 PAUSE 2 T 60 PAUSE 2 GPS 1 T 62 PAUSE 2 GPS 20 T 131 PAUSE 2 WIDTH 480 HEIGHT 320 THUMBSIZE 2 ]]
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Pattern type	Conduit
Conduit type	Composite
Input	Herschel
Number of cells	69
Output orientation	Unturned
Output offset	(32, 4)
Step	131 ticks
Recovery time (ignoring FNG if any)	98 ticks
Minimum overclock period (ignoring FNG if any)	96 ticks
Spartan?	No
Dependent?	No
Discovered by	Luka Okanishi
Year of discovery	2017
Rules Outer-totalistic rules B3/S23 – B38/S23 # of rules 21 = 2 Isotropic rules B3/S23 – B38/S234c
Pattern files Plaintext f131.cells RLE f131.rle

Not to be confused with F171.

F131 is a composite conduit discovered by Luka Okanishi on June 13, 2017. It is made up of two elementary conduits, HL58R and RR73H. After 131 ticks, it produces a Herschel at (32, 4) relative to the input. Its repeat time is 98 ticks, but it can be overclocked to period 96.

The HL58R stage consists of an eater 1, a boat and a block, which removes the majority of chaos produced by Herschel, but leaves the natural edge-shooting hexaplet that converges to the generation 4 of R-pentomino after two ticks. The RR73H stage uses a 37-cell still life found by praosylen with dr; Luka recognized that its interaction with R-pentomino gives a region reminiscent of one from Callahan G-to-H, and converted that to an output Herschel with the same transparent block successfully.

Matthias Merzenich reduced the large catalyst to 35 cells, as shown in the infobox; unlike the original 37-cell one that can absorb the first natural glider by itself via toggling boat-bit reaction, this new variant requires an eater to suppress it unless a dependent conduit follows.

Chris Cain noted that an extra glider with systematic designation HNE1T22 can be released with another eater 1 and a BTS, as shown below.

x = 37, y = 44, rule = B3/S23 10b2o$11bo$10bo$10b2o2b2o$13bobo$8b4obo$8bo2bob2o5$2o$bo20b2o$bobo18bo $2b2o16bobo$20b2o6$2bo$2bobo$2b3o$4bo$34bo$34bo$23b2o9b3o$23b2o11bo8$ 12b2ob2o$11bobobobo$9b3o3bobo2bo$8bo4bobob4o$8b2ob2ob2o$12bo3b3o$12bob 2o2bo$13bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 X -2 LOOP 210 AUTOSTART GPS 20 PAUSE 2 T 73 PAUSE 2 T 131 PAUSE 2 WIDTH 480 HEIGHT 380 THUMBSIZE 2 ]]

F131 variant with HNE1T22 glider (click above to open LifeViewer) RLE: here Plaintext: here

In these patterns, a ghost Herschel marks the output location.

Gallery

HL58R	+	RR73H
The two elementary conduits that form F131