|View animated image|
|View static image|
|Number of cells||28|
|Year of discovery||2016|
The ship hauls a block behind it, which makes for interesting reactions involving other ships. Dean Hickerson built a sawtooth that uses copperhead's ability to turn a heavyweight spaceship into a loaf. It can also eat gliders and middleweight spaceships cleanly from behind, and lightweight spaceships from the side of the block. Its front end can cleanly burn through blinkers, creating a c/10 blinker fuse.
Simon Ekström found a tagalong with a large spark on March 20, 2016. Tanner Jacobi noticed that it can be attached to two other identical tagalongs, thus allowing for ships of arbitrary size. Nico Brown built a puffer and a rake using copperheads with tagalongs to make a signal loop.
The first synthesis was proposed by Aidan F. Pierce on the day of discovery. An alternative synthesis utilising fumarole as a predecessor, presented by Tanner Jacobi an hour later, was much more efficient. After optimizations by Mark Niemiec and Chris Cain the total synthesis cost made 22 gliders. A copperhead gun was then completed by Alexey Nigin on March 6, 2016. A faster gun was constructed one day later.
In other rules
In the cellular automaton DryLife, an extremely similar spaceship (dubbed the goldenhead) also travels at c/10 orthogonal. It differs from the normal copperhead by 2 cells in one phase. A normal copperhead at this phase will turn into a goldenhead in DryLife, and conversely this phase will return to a copperhead in normal Life.
- zdr (March 5, 2016). "is this c/10 spaceship known?". Retrieved on March 5, 2016.
- Dean Hickerson (6 March, 2016). "Re: is this c/10 spaceship known?".
- Simon Ekström (March 20, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 20, 2016.
- Tanner Jacobi (March 20, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 20, 2016.
- Nico Brown (March 20, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 20, 2016.
- Alexey Nigin (March 6, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 6, 2016.
- gmc_nxtman (7 March, 2016). "Re: is this c/10 spaceship known?". Retrieved on 8 March, 2016.
- Apple Bottom (April 4, 2016). "Haul". Catagolue. Retrieved on April 4, 2016.