Difference between revisions of "Spider"

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m (Synth cost down from 488 to 382 with Goldtiger997's improved last step)
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|isorulemin      = B3/S23-cy
|isorulemin      = B3/S23-cy
|isorulemax      = B34cekq5e6c8/S234ceq5-ciqr6acn7c8
|isorulemax      = B34cekq5e6c8/S234ceq5-ciqr6acn7c8
|synthesis        = 382
|synthesis        = 381
|synthesisRLE    = true
|synthesisRLE    = true
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|plaintext        = true

Revision as of 14:13, 9 December 2019

Spider
9bo7bo$3b2obobob2o3b2obobob2o$3obob3o9b3obob3o$o3bobo5bobo5bobo3bo$4b 2o6bobo6b2o$b2o9bobo9b2o$b2ob2o15b2ob2o$5bo15bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 TRACKLOOP 5 0 -1/5 THUMBSIZE 2 ]]
Pattern type Spaceship
Number of cells 58
Bounding box 27 × 8
Direction Orthogonal
Period 5
Mod 5
Speed c/5 | c/5
Heat 53.6
Discovered by David Bell
Year of discovery 1997

Spider is an orthogonal c/5 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.

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]

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

External links