Hammerhead

Hammerhead
x = 18, y = 16, rule = B3/S23 5o$o4bo7b2o$o11b2ob3o$bo9b2ob4o$3b2o3b2ob2o2b2o$5bo4bo2bo$6bobobobo$7b o$7bo$6bobobobo$5bo4bo2bo$3b2o3b2ob2o2b2o$bo9b2ob4o$o11b2ob3o$o4bo7b2o $5o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 ZOOM 10 TRACKLOOP 4 -1/2 0 ]]
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Pattern type	Spaceship
Number of cells	76
Bounding box	18×16
Direction	Orthogonal
Period	4
Mod	4
Speed	c/2
Speed (unsimplified)	2c/4
Heat	90.0
Discovered by	Hartmut Holzwart
Year of discovery	Unknown
Rules Outer-totalistic rules B3/S23 – B38/S23 Important rules Conway Life # of rules 21 = 2 Isotropic rules B3-ky/S23-k – B2n34city5ijry6eik7e8/S234cejz5cenr6ein7e
Pattern files Plaintext hammerhead.cells RLE hammerhead.rle
Identifiers apgcode xq4_osssogy2aghgiszy2fq240m6zy2ub840dcz377731y2a1h197

Hammerhead is an orthogonal c/2 spaceship found by Hartmut Holzwart no later than September 1995. Alternatively, hammerhead may refer to just the front half of this spaceship (in particular the leftmost nine columns of the form shown below), which can be extended to a c/2 spaceship in a variety of ways.

Image gallery

Hammerhead may refer just to the leftmost 9 columns of generation 3, shown here in green

External links

• Hammerhead at the Life Lexicon

• Hammerhead at Adam P. Goucher's Catagolue