Symmetrica / Puffers

The three most common puffers are:

  1. Mason
  2. Hyperion
  3. Parade

Parade

  • Period-16 blinker puffer
  • 3rd most common puffer

The parade can combine with a tugboat to make a period-16 block puffer.

Voyager

  • Period-16 blinker puffer

Hyperion

  • Period-26 blinker puffer
  • 2nd most common puffer
  • See also: titan

Here is a nova-producing puffer made of two hyperions and two tugboats:

Arcade

Plow

  • Period-140 puffer
  • Debris: 12 blocks, 4 flares
  • Front section repeats at a period of 20

Two plows can combine to make a puffer than produces shells and pinwheels.

Byzantine

Although the byzantine is fairly dirty on its own, multiple byzantines can combine to produce a variety of clean puffers. Six examples are shown below. (From left to right: flare puffer, shell puffer, block puffer, block on table puffer, beacon puffer, victory puffer.)

The byzantine can combine with a tugboat to make a period-16 block puffer.

The cluster of common objects below produces a byzantine, along with a block and a tugboat.

Mason

  • Period-19 5c/19 block puffer
  • Most common puffer
  • See also: slowpoke

In the wild, masons are created when a tango collides into a blinker and then a block.

Two seeds that produce a mason when hit by a tugboat:

Marathon puffer

  • Large engineered puffer that creates a marathon every 160 generations
  • Consists of three parade-tugboat block puffers, two 40 up rakes, a schooner, three ABSs, and two 80 down rakes

The puffer works by laying three trails of blocks and then destroying eight tenths of the blocks, leaving behind groups of six blocks whose central blocks can be activated by a beehive spark to produce a marathon. These beehive sparks are provided by an ABS. However, the ABS cannot fit between the block trails, so the leftmost trail must actually be laid after the ABS has passed. Many of the excess blocks are destroyed by the ABS or by the marathons themselves, which is why only four rakes are needed.