- 4 -

  • 47575m_synth

    Glider synthesis of 47575M. https://conwaylife.com/wiki/47575M

    Size:157x25 | Rule:23/3

  • 44p7onbeluchenkosp13

    https://conwaylife.com/wiki/44P7_on_Beluchenko%27s_p13 https://www.conwaylife.com/patterns/44p7onbeluchenkosp13.rle

    Size:25x25 | Rule:23/3

  • 49p88_synth

    A 16-glider synthesis of 49P88 https://www.conwaylife.com/wiki/index.php?title=49P88

    Size:117x81 | Rule:23/3

  • 42883m

    https://conwaylife.com/wiki/42883M https://conwaylife.com/patterns/42883m.rle A methuselah with a lifespan of 42883 generations, discovered on November 30, 2018, also known as Homer.

    Size:16x16 | Rule:23/3

  • 44p5h2v0tagalongs

    The first 2c/5 orthogonal spaceship, discovered on July 23, 1991 https://www.conwaylife.com/wiki/44P5H2V0 https://www.conwaylife.com/patterns/44p5h2v0tagalongs.rle

    Size:66x35 | Rule:23/3

  • 44p10

    https://conwaylife.com/wiki/44P10 https://www.conwaylife.com/patterns/44p10.rle

    Size:14x14 | Rule:23/3

  • 47p72_synth

    Glider synthesis of 47P72, a period 72 oscillator

    Size:150x90 | Rule:23/3 | @lifewiki

  • 47575m

    A methuselah with a lifespan of 47575 generations, found using apgsearch. https://conwaylife.com/wiki/47575M https://www.conwaylife.com/patterns/47575m.rle

    Size:16x16 | Rule:23/3

  • 48p31

    The first known period-31 oscillator https://www.conwaylife.com/wiki/index.php?title=48P31

    Size:24x13 | Rule:23/3

  • 48p22.1

    https://conwaylife.com/wiki/48P22.1 https://conwaylife.com/patterns/48p221.rle

    Size:16x16 | Rule:23/3

  • 48p20

    A period-20 oscillator found in 2008

    Size:15x15 | Rule:23/3

  • 48p31_synth

    24-glider synthesis of Merzenich's p31 (48P31) https://conwaylife.com/wiki/Merzenich's_p31 https://conwaylife.com/forums/viewtopic.php?p=29398#p29398

    Size:142x39 | Rule:23/3

  • 43p54

    https://conwaylife.com/wiki/43P54 https://www.conwaylife.com/patterns/43p54.rle

    Size:26x19 | Rule:23/3

  • 4enginecordership_synth

    14-glider recipe for 4-engine Cordership, minimum population 134 Completed 21 April 2017, following Luka Okanishi's discovery of a three-glider switch engine synthesis 14-glider synthesis of a minimum population 4-engine Cordership. https://conwaylife.com/wiki/4-engine_Cordership https://conwaylife.com/patterns/4enginecordership_synth.rle

    Size:131x131 | Rule:23/3

  • 440p49.1

    The first period 49 oscillator to be discovered. Found on August 1, 1999.

    Size:65x65 | Rule:23/3 | @lifewiki

  • 44p14

    https://conwaylife.com/wiki/44P14 https://www.conwaylife.com/patterns/44p14.rle 44p14 billiard table Dean Hickerson, 21 Apr 1997

    Size:13x10 | Rule:23/3

  • 49p88

    A small non-trivial period 88 oscillator, discovered on September 1 3, 1996

    Size:27x25 | Rule:23/3 | @lifewiki

  • 487tickreflector

    https://conwaylife.com/wiki/487-tick_reflector https://conwaylife.com/patterns/487tickreflector.rle

    Size:270x174 | Rule:23/3

  • 4812diamond

    A pure glider generator.

    Size:12x9 | Rule:23/3

  • 44p14variant

    https://conwaylife.com/wiki/44P14 https://www.conwaylife.com/patterns/44p14variant.rle

    Size:12x13 | Rule:23/3

  • 46p10

    https://conwaylife.com/wiki/46P10 https://www.conwaylife.com/patterns/46p10.rle

    Size:19x19 | Rule:23/3

  • 49769m

    https://conwaylife.com/wiki/49768M https://www.conwaylife.com/patterns/49769m.rle

    Size:16x16 | Rule:23/3

  • 44p12.3_synth

    79-glider synthesis of 44P12.3 https://conwaylife.com/wiki/44P12.3 https://conwaylife.com/forums/viewtopic.php?p=15718#p15718 https://conwaylife.com/forums/viewtopic.php?p=56651#p56651

    Size:515x249 | Rule:23/3

  • 47p72

    The first period 72 oscillator to be discovered. Found in July 1990 .

    Size:30x15 | Rule:23/3 | @lifewiki

  • 43p18

    The smallest known period 18 oscillator.

    Size:20x15 | Rule:23/3 | @lifewiki

  • 4hearts

    https://conwaylife.com/wiki/Heart https://www.conwaylife.com/patterns/4hearts.rle

    Size:15x15 | Rule:23/3

  • 46p4h1v0

    The smallest known c/4 orthogonal spaceship. Has period 4.

    Size:19x10 | Rule:23/3 | @lifewiki

  • 44p38

    A period-38 oscillator discovered by David Raucci on 12 Jan 2022 based on a wick by Jason Summers and a catalyst by 'cvojan'

    Size:44x12 | Rule:23/3

  • 4enginecordership2

    https://conwaylife.com/wiki/4-engine_Cordership https://www.conwaylife.com/patterns/4enginecordership2.rle

    Size:77x77 | Rule:23/3

  • 4enginecordershipb

    A diagonal period 96 c/12 four-engine Cordership found on July 9, 2005.

    Size:77x74 | Rule:23/3 | @lifewiki

  • 44p12.3

    https://conwaylife.com/wiki/44P12.3 https://www.conwaylife.com/patterns/44p12.3.rle

    Size:14x14 | Rule:23/3

  • 48p9onrattlesnake

    https://conwaylife.com/wiki/48P9_on_rattlesnake https://www.conwaylife.com/patterns/48p9onrattlesnake.rle

    Size:25x24 | Rule:23/3

  • 48p9

    https://conwaylife.com/wiki/68P9 https://www.conwaylife.com/patterns/48p9.rle

    Size:12x17 | Rule:23/3

  • 48p9on30p25

    https://conwaylife.com/wiki/30P25 https://www.conwaylife.com/patterns/48p9on30p25.rle

    Size:31x28 | Rule:23/3

  • 4boats

    A period 2 oscillator made up of 4 boats.

    Size:8x8 | Rule:23/3

  • 400p49

    A small period 49 oscillator based off of Noam Elkies' reflector te chnology

    Size:65x65 | Rule:23/3 | @lifewiki

  • 4eaters

    https://conwaylife.com/wiki/Composers https://www.conwaylife.com/patterns/4eaters.rle

    Size:15x15 | Rule:23/3

  • 4iheptominomimics

    https://conwaylife.com/wiki/I-heptomino https://www.conwaylife.com/patterns/4iheptominomimics.rle

    Size:25x21 | Rule:23/3

  • 4enginecordership136

    https://conwaylife.com/wiki/4-engine_Cordership https://www.conwaylife.com/patterns/4enginecordership136.rle

    Size:77x74 | Rule:23/3

  • 4inarowcordership_synth

    https://conwaylife.com/wiki/4-in-a-row_Cordership https://www.conwaylife.com/patterns/4inarowcordership_synth.rle Ian07, 9 September 2020 4-in-a-row Cordership synthesis in 14 gliders https://www.conwaylife.com/forums/viewtopic.php?p=103728#p103720

    Size:92x92 | Rule:23/3

  • 46p4h1v0_synth

    46p4h1v0_synth.rle 88-glider synthesis of c/4 orthogonal spaceship 46P4H1V0. Discovered by Tanner Jacobi and Martin Grant on 4 February 2019, and subsequently optimized by several contributors. This is the first glider synthesis of a c/4 orthogonal spaceship. Repeat time for this synthesis variant ia 572 ticks, as shown. https://conwaylife.com/wiki/46P4H1V0 https://www.conwaylife.com/forums/viewtopic.php?p=70272#p70272

    Size:1968x648 | Rule:23/3

  • 44p5h2v0

    The first 2c/5 spaceship to be discovered https://www.conwaylife.com/wiki/index.php?title=44P5H2V0

    Size:15x11 | Rule:23/3

  • 4gto5greaction

    https://conwaylife.com/wiki/4g-to-5g_reaction https://www.conwaylife.com/patterns/4gto5greaction.rle

    Size:65x49 | Rule:23/3

  • 40514m_synth

    Glider synthesis of 40514M. https://conwaylife.com/wiki/40514M

    Size:313x54 | Rule:23/3

  • 4gto5gr2

    https://conwaylife.com/wiki/4g-to-5g_reaction https://conwaylife.com/patterns/4gto5gr2.rle

    Size:65x49 | Rule:23/3

  • 42p7.1

    https://conwaylife.com/wiki/44P7.2 https://www.conwaylife.com/patterns/42p7.1.rle

    Size:14x14 | Rule:23/3

  • 46p22

    A period 22 oscillator discovered on September 8, 2005

    Size:17x16 | Rule:23/3 | @lifewiki

  • 44p7.2_synth

    127-glider synthesis of 44P7.2 https://conwaylife.com/wiki/44P7.2 https://conwaylife.com/forums/viewtopic.php?p=20994#p20994

    Size:580x122 | Rule:23/3

  • 40514m

    18-cell 40514-generation methuselah based on Richard Wobus' 15-cell 32829M https://conwaylife.com/wiki/40514M https://conwaylife.com/patterns/40514m.rle

    Size:78x54 | Rule:23/3

  • 4gto6greaction

    https://conwaylife.com/wiki/Over-unity_reaction https://www.conwaylife.com/patterns/4gto6greaction.rle

    Size:89x66 | Rule:23/3

  • 48p31reflectinggliders90

    https://conwaylife.com/wiki/Merzenich%27s_p31 https://www.conwaylife.com/patterns/48p31reflectinggliders90.rle

    Size:35x32 | Rule:23/3

  • 409p6h1v0

    https://conwaylife.com/wiki/409P6H1V0 https://www.conwaylife.com/patterns/409p6h1v0.rle

    Size:12x163 | Rule:23/3

  • 4blocks

    https://conwaylife.com/wiki/Density https://www.conwaylife.com/patterns/4blocks.rle

    Size:5x5 | Rule:23/3

  • 45degreemwsstogp2

    https://conwaylife.com/wiki/45-degree_MWSS-to-G https://www.conwaylife.com/patterns/45degreemwsstogp2.rle

    Size:17x22 | Rule:23/3

  • 4skewedblocks

    https://conwaylife.com/wiki/Familiar_fours https://www.conwaylife.com/patterns/4skewedblocks.rle

    Size:10x13 | Rule:23/3

  • 4inarowcordership

    https://conwaylife.com/wiki/4-in-a-row_Cordership https://www.conwaylife.com/patterns/4inarowcordership.rle

    Size:71x71 | Rule:23/3

  • 42p10.3

    https://conwaylife.com/wiki/42P10.3 https://conwaylife.com/patterns/42p10.3.rle First period-10 oscillator to be discovered, no later than 1976.

    Size:13x13 | Rule:23/3

  • 41p7.2

    A period 7 oscillator with an isolated two-bit spark

    Size:13x14 | Rule:23/3 | @lifewiki

  • 40enginecordership

    https://conwaylife.com/wiki/Switchwave https://conwaylife.com/patterns/40enginecordership.rle

    Size:436x436 | Rule:23/3

  • 43cell9x9pseudostilllifes

    https://conwaylife.com/wiki/Density https://www.conwaylife.com/patterns/43cell9x9pseudostilllifes.rle

    Size:89x29 | Rule:23/3

  • 45hivenudgers

    All 45 distinct period 4 c/2 orthogonal hivenudger spaceships.

    Size:155x116 | Rule:23/3 | @lifewiki

  • 4boats_synth

    Glider synthesis of four boats (aka. hourglass). https://conwaylife.com/wiki/Four_boats

    Size:36x36 | Rule:23/3

  • 42100m

    The longest-lived (as of early November 2018) methuselah fitting into a 16x16 bounding box, discovered using apgsearch 4.5 and Catagolue. https://conwaylife.com/wiki/42100M

    Size:16x16 | Rule:23/3

  • 4enginecorderships

    extensible 4-engine Cordership https://www.conwaylife.com/forums/viewtopic.php?p=14135#p14135 https://conwaylife.com/wiki/4-engine_Cordership https://www.conwaylife.com/patterns/4enginecorderships.rle

    Size:302x137 | Rule:23/3

  • 43p18_synth

    A 16-glider synthesis of 43P18 https://www.conwaylife.com/wiki/index.php?title=43P18

    Size:120x81 | Rule:23/3

  • 49768m

    https://conwaylife.com/wiki/49768M https://www.conwaylife.com/patterns/49768m.rle

    Size:16x16 | Rule:23/3

  • 4enginecordership

    A 4-engine c/12 period 96 diagonal Cordership found on July 9, 2005.

    Size:76x76 | Rule:23/3 | @lifewiki

  • 44p7.2

    A period 7 oscillator that supplies two accessible domino sparks, discovered on June 19, 1977

    Size:16x16 | Rule:23/3 | @lifewiki

  • 4blocksonstar

    https://conwaylife.com/wiki/Star https://www.conwaylife.com/patterns/4blocksonstar.rle

    Size:11x11 | Rule:23/3

  • 45degreemwsstog

    https://www.conwaylife.com/wiki/45-degree_MWSS-to-G https://www.conwaylife.com/patterns/45degreemwsstog.rle

    Size:84x26 | Rule:23/3