Bx222
| Bx222 | |||||||||
| View static image | |||||||||
| Pattern type | Conduit | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Conduit type | Composite | ||||||||
| Input | Herschel | ||||||||
| Number of cells | 84 | ||||||||
| Bounding box | 38 × 36 | ||||||||
| Output orientation | Turned back, flipped | ||||||||
| Output offset | (6, -16) | ||||||||
| Step | 222 ticks | ||||||||
| Recovery time (ignoring FNG if any) |
271 ticks | ||||||||
| Minimum overclock period (ignoring FNG if any) |
Unknown | ||||||||
| Spartan? | No | ||||||||
| Dependent? | No | ||||||||
| Discovered by | Paul Callahan | ||||||||
| Year of discovery | 1998 | ||||||||
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Bx222 is a composite conduit, one of the original sixteen Herschel conduits, discovered by Paul Callahan in October 1998. It is made up of three elementary conduits: HF95P, PB68B and BFx59H. After 222 ticks, it produces a backward-traveling inverted Herschel at (6, -16) relative to the input. In the pattern shown in the infobox, a ghost Herschel marks the output location.
Its recovery time is very slow, 271 ticks, because it relies on the output Herschel's first natural glider to clean up the input Herschel's first natural block (visible in the infobox starting at T=37). Most other conduits include an eater 1 to suppress that block, but there's no room for a catalyst in that location in the Bx222.
The HF95P stage produces an extra glider in the northwest, but to release that glider, one would usually need to either suppress the output Herschel or use a staged recovery conduit, since most elementary H-to-X conduits require an eater 1 to eat the first natural block of the Herschel. Early catalysts in most conduits that can be attached to the Bx222 would be damaged if the NW glider is allowed to escape. (One of exceptions is HLx111R; attaching it allows the northwest glider to escape.[1] While Fx119 allows the northwest glider to escape, in practice it blocks the input so is of limited utility.) Therefore an eater 5 variant is generally required.
The specific eater 5 variant shown in the infobox allows for an Fx77 and similar conduits to be appended using a simple weld—a standard eater 5 won't fit as well. F117 and similar conduits, on the other hand, can be appended to the following Spartan variant; their initial eater 1 needs to be removed to keep the first natural block instead.
| (click above to open LifeViewer) RLE: here Plaintext: here |
Gallery
 HF95P |
+ |  PB68B |
+ |  BFx59H |
| The elementary conduits that form Bx222 | ||||
See also
External links
- Bx222 at the Life Lexicon
- Patterns
- Patterns with 84 cells
- Patterns found by Paul Callahan
- Patterns found in 1998
- Outer-totalistically endemic patterns
- Conduits
- Composite conduits
- Herschel conduits
- Conduits with output orientation Bx
- Conduits with output offset (6, -16)
- Conduits with recovery time 271
- Non-Spartan conduits
- Independent conduits