72P4H1V0

72P4H1V0
x = 19, y = 15, rule = B3/S23 b2o3b2o3b2o3b2o$obobobobobobobobobo$bob2obobobobob2obo$4b3obobob3o$4b2o2bobo 2b2o$5bo7bo$5bo7bo$5bo2bobo2bo$4bo2bo3bo2bo2$3bo3bo3bo3bo$3b2ob2o3b2ob2o3$4b 3o5b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 550 GPS 4 TRACKLOOP 4 0 -1/4 ]]
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Pattern type	Spaceship
Number of cells	72
Bounding box	19 × 17
Direction	Orthogonal
Period	4 (mod: 4)
Speed	c/4 | c/4
Heat	59
Kinetic symmetry	-c
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B3/S23 – B38/S238 # of rules 22 = 4 Isotropic rules B3-k/S23-k – B2n34eqryz5ae6acn7c8/S0234cek5cek6-k7e8
Glider synthesis Fewest gliders 190† Catagolue-generated RLE synthesis †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext 72p4h1v0.cells RLE 72p4h1v0.rle
Identifiers apgcode xq4_2534uof1u0u1fou4352zy087084048078zx3igi3x3igi3

72P4H1V0 is one of many unnamed period-4 c/4 orthogonal spaceships, notable for being one of the few elementary spaceships which is known to be constructible via gliders.

Glider synthesis

The synthesis for 72P4H1V0 was completed in March 2021, making it the second c/4 orthogonal spaceship to be synthesized.

See also

• 46P4H1V0
• 61P4H1V0

External links

• 72P4H1V0 at Adam P. Goucher's Catagolue