LifeWiki:FAQ/apgcode

What is an apgcode?

Main article: apgcode

An apgcode is a unique identifier used by apgsearch and its search results database, Catagolue, to classify and denote a pattern.

How to convert RLE to apgcode?

• Pipe the RLE into apgsearch compiled for the desired rule and a test stdin pseudo-symmetry:
  https://conwaylife.com/forums/viewtopic.php?p=141757#p141757
  https://conwaylife.com/forums/viewtopic.php?p=154659#p154659
• Via a Golly script (only for oscillators, spaceships and still lives):
  https://conwaylife.com/forums/viewtopic.php?p=114262#p114262
  https://conwaylife.com/forums/viewtopic.php?p=135450#p135450
• Via "Identify pattern" page on Catagolue (only for oscillators, spaceships and still lives):
  https://catagolue.hatsya.com/object
• Using lifelib: https://conwaylife.com/forums/viewtopic.php?p=148552#p148552

How to convert apgcode to RLE?

• Via "Identify pattern" page on Catagolue: https://catagolue.hatsya.com/object
• Using lifelib: https://conwaylife.com/forums/viewtopic.php?p=148552#p148552

What are the numbers after yl?

See these posts:

• https://conwaylife.com/forums/viewtopic.php?p=71429#p71429
• https://conwaylife.com/forums/viewtopic.php?p=150517#p150517