Quadri-Snark

The quadri-Snark is a period-multiplying colour-preserving signal conduit found by Tanner Jacobi in October 2017, producing one output glider for every four input gliders.[1] It is made by replacing one of the eaters in a tremi-Snark with a catalyst found using Bellman. The catalyst cause the formation of a tub which then requires an additional glider to delete. However, this adds 5 ticks to the repeat time, so that it becomes 48. If period quadrupling is needed with a colour-changing reaction, a CP semi-Snark, CC semi-Snark and the regular Snark can be used in series, or a period-multiplying Herschel conduit can be connected to a syringe and an appropriately chosen Herschel-to-glider converter.

Quadri-Snark
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Pattern type Stable reflector
Number of cells 70
Bounding box 25×22
Angle 90°
Repeat time 48
Period multiplier 4×
Colour Colour-preserving
Discovered by Tanner Jacobi
Year of discovery 2017

The quadri-Snark was part of a series of new stable pulse dividers (the others being the tremi-Snark and the semi-cenarks) which collectively ranked third place in the Pattern of the Year 2017 competition on the ConwayLife.com forums, behind Tanner's p46 and the 2-engine Cordership.[2]

See also

References
  1. Tanner Jacobi (October 24, 2017). Re: Thread For Your Bellman Finds (discussion thread) at the ConwayLife.com forums
  2. Dave Greene (February 19, 2018). Re: Pattern of the Year 2017 -- votes (discussion thread) at the ConwayLife.com forums
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