Spider

Spider is a c/5 orthogonal spaceship that was discovered by David Bell in April 1997. It is the smallest known c/5 orthogonal spaceship. Its side sparks have proven to be very useful in constructing puffers and rakes.

Spider
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Pattern type Spaceship
Number of cells 58
Bounding box 27×8
Direction Orthogonal
Period 5
Mod 5
Speed c/5
Speed (unsimplified) c/5
Heat 53.6
Discovered by David Bell
Year of discovery 1997

On March 7, 2019, Martin Grant found a 601-glider synthesis of spider, making it the first c/5 orthogonal spaceship to be synthesized.[1] Optimizations have since been found to reduce the glider count.[2][3][4][5] A spider gun was constructed by Entity Valkyrie on January 26, 2020,[6] and a glider-to-spider converter was constructed by Goldtiger997 on March 12.[7] The spider synthesis ranked second place in the Pattern of the Year 2019 competition on the ConwayLife.com forums, behind David Hilbert.[8]

See also

References
  1. Martin Grant (March 7, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  2. Jeremy Tan (May 18, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  3. Goldtiger997 (December 9, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  4. Tanner Jacobi (January 22, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  5. Tanner Jacobi (March 24, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  6. Entity Valkyrie (January 26, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  7. Goldtiger997 (March 12, 2020). Re: Stable signal converters (discussion thread) at the ConwayLife.com forums
  8. Dave Greene (March 16, 2020). Re: POTY 2019 Voting (discussion thread) at the ConwayLife.com forums
  • 58P5H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs
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