Here is a list of the entries for the competition:
#01 0E0P metacell (by Adam P. Goucher): a unit cell which doesn't require a background grid of OFF cells to function, allowing unusual classes of patterns such as quadratic replicators and RROs to be imported into CGoL from other rules.
#02 42883M (by Adam P. Goucher): a recording-breaking methuselah, discovered using apgsearch.
#03 Jormungant's G-to-H (by Jormungant): a 2G-to-H converter with a short recovery time, allowing the optimisation of numerous guns.
#04 Quinti-Snarks (by Tanner Jacobi): period-quintupling reflectors useful for guns.
#05 Period-33 glider gun (by Arie Paap and Matthias Merzenich): the first true period-33 gun.
#06 Period-52 glider gun (by Dave Greene, Matthias Merzenich, Adam P. Goucher, Chris Cain, and Entity Valkyrie): the first true period-52 gun.
#07 Reverse caber-tosser (by Adam P. Goucher, Dave Greene, and Chris Cain): a complex mechanism which theoretically allows any glider-synthesisable pattern to be synthesised in just 35 gliders, by encoding the pattern's complexity into the distance between the gliders rather than their quantity.
#08 Sierpinski triangle generator (by Luka Okanishi): a breeder that outputs gliders in the shape of a growing Sierpinski triangle.
#09 Sir Robin (by Adam P. Goucher and Tomas Rokicki): a (2,1)c/6 spaceship, the first elementary knightship discovered in CGoL.
#10 Bronco (by Tanner Jacobi): the second elementary G-to-H to be discovered, following the venerable syringian TJ/JT tradition -- discovered by Tanner Jacobi and named by Jeremy Tan;
#11 New self-constructing spaceships (by Dave Greene): including a loopship and HashLife-friendly variants of the Orthogonoid and Demonoid (no giraffeship yet);
#12 Stable line crosser (by Dave Greene and Goldtiger997): a modernised rehash of David Bell's periodic circuitry for transmitting a glider across a line of cells;
#13 Cottonmouth (by A for Ampere): a pushalong for the c/10 copperhead spaceship;
#14 Fast Universal Regulators (by Dave Greene): ingenious use of pulse dividers to reduce the period of the drive gun of a universal regulator;
#15 5c/9 signal injector (by Rhombic, Simon Ekström, and Chris Cain): a method of transforming Herschels to 5c/9 drifters with a recovery time of 62;
#16 Minstrel 4 (by Entity Valkyrie): the first manually-assembled knightship;
#19 Camelship (by Chris Cain): a self-constructing spaceship with a new step distance, (3,1), based in part on the volatility-1 oscillator but with a unique design component, a loop-crossing recipe-switching signal;
#20 c/2 diagonal telegraph recipe (by Martin Grant): a 140-glider recipe to create a detectable c/2 diagonal signal traveling non-destructively along a very^N long barge or ship;
#25 p9 bouncer (by Matthias Merzenich, carybe, and Noam Elkies): can reflect a p27 glider stream using a p9 oscillator found with apgsearch the same day.
#26 p3 bumper (by Arie Paap and Tanner Jacobi): the first reflector to work at p39. It also enabled the construction of a smaller p57.
#32 New honeyfarm hasslers [1], [2], [3] (by Tanner Jacobi and Matthias Merzenich)
#33 New mid-period (7-10) sparkers [1], [2], [3], [4], [5], [6], [7], [8] (by Dongook Lee, Josh Ball, Martin Grant, Aidan F. Pierce, carybe, and Bullet51)
#34 p18-21 pseudo-period LWSS/MWSS/HWSS guns (by Chris Cain, Adam P. Goucher, Entity Valkyrie, 2718281828, and Goldtiger997): the previous lowest known pseudo-period *WSS gun was p22.
We will use the same voting system as the 2016 and 2017 competitions:
Vote only for the patterns you like, and give each of them 1, 2, or 3 stars depending on how much you like them. You can vote for your own patterns if you want. Here is an example vote:
#01 *
#02 **
#04 ***
#08 *
The voting will close two weeks after the creation of this post.
former username: A for Awesome
praosylen#5847 (Discord)
The only decision I made was made
of flowers, to jump universes to one of springtime in
a land of former winter, where no invisible walls stood,
or could stand for more than a few hours at most...
The torch of 5S has been passed on again, and is now managed by speedydelete. It can be found here. Also check out my program EPE, a tool for searching for patterns in various rulespaces.