Life Objects Buildable With 4 Gliders

Still-lifes | Pseudo-still-lifes | Oscillators | Period 2 pseudo-oscillators | Constellations | Metheuselah

Since only a small fraction of all the possible 4-glider interactions have been tracked, it is likely that many of these lists are incomplete.

48 still-lifes buildable from 4 gliders:

4-glider still-lifes
Snake [4] Aircraft carrier, Carrier [4] Python, Long snake [4] Shil- lelagh [4] Long ship [4] Tub w/tail [4] Canoe, Sinking ship, Cis snake [4] Long canoe (9.3) [4] Integral (9.4) [4] Up boat w/tail (9.5) [4]
Down boat w/tail (9.6) [4] Beehive w/tail (10.7) [4] Very long canoe (10.11) [4] Claw w/tail (10.18) [4] Boat tie boat (Bowtie, 10.24) [4] Block on table (10.25) [4] Down loaf w/tail (11.4) [4] Up loaf w/tail (11.5) [4] Ship tie boat (11.30) [4] Gull, Elevener (11.38) [4]
Ship tie ship (Half-fleet, 12.3) [4] Boat tie eater (12.7) [4] Cis table on table (12.25) [4] Block on covered table (12.27) [4] Down cigar w/tail (12.66) [4] Beehive tie beehive (12.104) [4] Carrier bridge carrier (12.107) [4] Gull w/tub (12.109) [4] Gull w/hook (12.110) [4] Down cis bun on bun (14.13) [4]
Large S (14.36) [4] Up cis bun on bun (14.55) [4] Block on long house (14.89) [4] Eater tail bridge eater tail (14.176) [4] Sidewalk (14.507) [4] Biloaf (14.520) [4] Cis very long fuse w/two tails (14.526) [4] Up cis bookend on bookend (14.590) [4] Moose antlers (15.243) [4] Shillelagh tie bun (15.356) [4]
Up boat on long house (15.462) [4] Up covered table above eater (15.601) [4] Bipond (16.1749) [4] Down trans bun on house (16.1942) [4] Up cis dove on dove (18.355) [4] Cis house on house (18.287) [4] Trans house on house (18.6707) [4] Cis long house on long house (20.5320) [4]

29 pseudo-still-lifes buildable from 4 gliders:

4-glider pseudo-still-lifes
Block below carrier [4] Down boat on boat [4] Boat on beehive [4] Down boat on ship [4] Block above eater [4] Block on eater [4] Block below python [4] Block on block on block [4] Block on pond [4] Beehive on ship [4]
Down boat on long boat [4] Beehive on loaf [4] Boat on pond [4] Beehive above eater [4] Down boat on long ship [4] Beehive on pond [4] Up loaf on loaf [4] Up eater tail above eater [4] Down eater tail below eater [4] Loaf on pond [4]
Block on block on loaf [4] Pond above eater [4] Trans up and down boats on ship [4] Pond on pond [4] Two blocks on two blocks [4] Up boats on and above eater [4] Two down boats on loaf [4] Two blocks on two boats [4] Two boats on pond [4]

3 Oscillators buildable from 4 gliders:

4-glider osc.
Clock [4] Spark coil [4] Figure-8 [4]

3 period-2 pseudo-oscillators buildable from 4 gliders:

4gl pseudo-oscillators
Block on beacon [4] Up boat on beacon [4] Cis block on beacon on block [4]

1 small constellation buildable from 4 gliders:

There are an infinite number of 4-glider constellations; these is one of the most common:
4gl const.
Two bowties and two half traffic lights [4]

2 metheuselahs buildable from 4 gliders:

4gl meth.
Thunder- bird [4] Acorn [4]

Other costs: 2 gliders, 3 gliders, 4 gliders, >1 glider/bit, unknown.

See also: Life objects sorted by: counts, gliders, name, size, or type.

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