Parallel HBK

Parallel HBK
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Pattern type	Spaceship
Number of cells	132945
Bounding box	31080 × 32771
Direction	slope 2
Period	245912 (mod: Unknown)
Speed	(6,3)c/245912 | Unknown
Heat	Unknown
Kinetic symmetry	Unspecified
Discovered by	Chris Cain
Year of discovery	2014
Rules Outer-totalistic rules B3/S23 only # of rules 20 = 1
Pattern files Macrocell parallelhbk.mc

Parallel half-baked knightships were proposed before the first half-baked knightship appeared on the scene, although the actual construction was completed several days later by Chris Cain. This design allows for several slow-salvo construction recipes to be completed in parallel, whereas the first half-baked knightship did all constructions serially.

There are several significant differences in design between the original half-baked knightship and Chris Cain's smaller version. The slow-salvo constructions are done serially in Goucher's design, and an extra glider is used to suppress the salvo that triggers the half-bakery trails.

Consequently, Cain's parallel knightship is much smaller than Goucher's original knightship, in terms of the population count, bounding box and period. It had also been the smallest known example of an oblique spaceship in Conway's Game of Life in terms of the bounding box before discovery of the waterbear later in the same year.

See also

• Caterpillar
• Gemini
• Waterbear