- F -

  • fourskewedblocks

    fourskewedblocks

    https://conwaylife.com/wiki/Four_skewed_blocks https://www.conwaylife.com/patterns/fourskewedblocks.rle

    Size:10x13 | Rule:23/3

  • foureaters

    foureaters

    https://conwaylife.com/wiki/Four_eaters https://www.conwaylife.com/patterns/foureaters.rle

    Size:15x15 | Rule:23/3

  • fox

    fox

    The smallest asymmetric period 2 oscillator.

    Size:7x7 | Rule:23/3 | @lifewiki

  • figureeightasreflector

    figureeightasreflector

    A figure eight reflecting gliders.

    Size:14x17 | Rule:23/3 | @lifewiki

  • figureeightonp29prepulsarshuttle

    figureeightonp29prepulsarshuttle

    https://conwaylife.com/wiki/P29_pre-pulsar_shuttle https://www.conwaylife.com/patterns/figureeightonp29prepulsarshuttle.rle

    Size:28x28 | Rule:23/3

  • fusewithtailandintegral

    fusewithtailandintegral

    https://conwaylife.com/wiki/Fuse_with_tail_and_integral https://conwaylife.com/patterns/fusewithtailandintegral.rle

    Size:7x7 | Rule:23/3

  • fermatprimecalculator

    fermatprimecalculator

    A pattern that is rigged to self-destruct if it finds a Fermat prim e larger than 65537.

    Size:838x736 | Rule:23/3 | @lifewiki

  • fumaroleon43p18

    fumaroleon43p18

    The smallest known period-90 oscillator. https://conwaylife.com/wiki/Fumarole_on_43P18

    Size:23x18 | Rule:23/3

  • figureeighton30p25

    figureeighton30p25

    https://conwaylife.com/wiki/30P25 https://www.conwaylife.com/patterns/figureeighton30p25.rle

    Size:29x20 | Rule:23/3

  • f116-2

    f116-2

    https://conwaylife.com/wiki/F116 https://www.conwaylife.com/patterns/f116-2.rle

    Size:99x55 | Rule:23/3

  • fx158

    fx158

    Repeat time 176 ticks https://conwaylife.com/wiki/Fx158 https://www.conwaylife.com/patterns/fx158.rle

    Size:30x30 | Rule:23/3

  • fumaroleonmerzenichsp64

    fumaroleonmerzenichsp64

    https://conwaylife.com/wiki/Merzenich%27s_p64 https://www.conwaylife.com/patterns/fumaroleonmerzenichsp64.rle

    Size:21x28 | Rule:23/3

  • fumaroleonalt62p83

    fumaroleonalt62p83

    https://conwaylife.com/wiki/62P83 https://www.conwaylife.com/patterns/fumaroleonalt62p83.rle

    Size:40x27 | Rule:23/3

  • fanout

    fanout

    https://conwaylife.com/wiki/Fanout https://www.conwaylife.com/patterns/fanout.rle

    Size:59x71 | Rule:23/3

  • frothingpuffer

    frothingpuffer

    A c/2 puffer with a seemingly unstable back end that nevertheless survives. https://www.conwaylife.com/wiki/Frothing_puffer

    Size:33x23 | Rule:23/3

  • fx77plusr64

    fx77plusr64

    https://conwaylife.com/wiki/Fx77 https://www.conwaylife.com/patterns/fx77plusr64.rle

    Size:48x30 | Rule:23/3

  • frutterfly

    frutterfly

    https://conwaylife.com/wiki/Frutterfly https://www.conwaylife.com/patterns/frutterfly.rle

    Size:12x5 | Rule:23/3

  • fx119inserter

    fx119inserter

    Eater1 addition Fx119 conduit is from circa 2003 https://www.conwaylife.com/patterns/fx119inserter.rle

    Size:30x24 | Rule:23/3 | @lifewiki

  • flyon60p3h1v0.3

    flyon60p3h1v0.3

    The fly tagalong attached to the back of a 60P3H1V0.3.

    Size:34x33 | Rule:23/3 | @lifewiki

  • fireship_synth

    fireship_synth

    18-glider synthesis of fireship Repeat time 387 ticks (shown) -- same for either of two variants: https://www.conwaylife.com/forums/viewtopic.php?p=54918#p54918

    Size:271x275 | Rule:23/3

  • fumaroleontwinbeesshuttle

    fumaroleontwinbeesshuttle

    https://conwaylife.com/wiki/Twin_bees_shuttle https://www.conwaylife.com/patterns/fumaroleontwinbeesshuttle.rle

    Size:11x40 | Rule:23/3

  • f171

    f171

    https://conwaylife.com/wiki/F171 https://www.conwaylife.com/patterns/f171.rle

    Size:33x35 | Rule:23/3

  • factory

    factory

    https://conwaylife.com/wiki/Factory https://www.conwaylife.com/patterns/factory.rle

    Size:51x24 | Rule:23/3

  • fx176

    fx176

    Repeat time 92 ticks, reducible to 73 ticks with alternate PF35W https://conwaylife.com/wiki/Fx176 https://www.conwaylife.com/patterns/fx176.rle

    Size:50x38 | Rule:23/3

  • fleet_synth

    fleet_synth

    Glider synthesis of fleets. https://www.conwaylife.com/ref/mniemiec/glider-3.htm

    Size:149x111 | Rule:23/3

  • figureeightonp35honeyfarmhassler

    figureeightonp35honeyfarmhassler

    https://conwaylife.com/wiki/P35_honey_farm_hassler https://www.conwaylife.com/patterns/figureeightonp35honeyfarmhassler.rle

    Size:23x27 | Rule:23/3

  • fheptomino

    fheptomino

    https://conwaylife.com/wiki/F-heptomino https://conwaylife.com/patterns/fheptomino.rle

    Size:4x4 | Rule:23/3

  • fourskewedblocks_synth

    fourskewedblocks_synth

    https://conwaylife.com/wiki/Four_skewed_blocks https://conwaylife.com/patterns/fourskewedblocks_synth.rle https://conwaylife.com/ref/mniemiec/16/16blocks.rle

    Size:29x10 | Rule:23/3

  • fireshiptagalong

    fireshiptagalong

    https://conwaylife.com/wiki/Fireship https://www.conwaylife.com/patterns/fireshiptagalong.rle

    Size:34x23 | Rule:23/3

  • flyextension

    flyextension

    Two flies attached to each other at the back of a c/3 spaceship.

    Size:60x28 | Rule:23/3 | @lifewiki

  • figureeightonrattlesnake

    figureeightonrattlesnake

    The smallest known period-88 oscillator. https://conwaylife.com/wiki/Figure_eight_on_rattlesnake

    Size:20x15 | Rule:23/3

  • fumarolepredecessor

    fumarolepredecessor

    https://conwaylife.com/wiki/Fumarole https://www.conwaylife.com/patterns/fumarolepredecessor.rle

    Size:9x11 | Rule:23/3

  • fx77parallelglider

    fx77parallelglider

    https://conwaylife.com/wiki/Fx77 https://www.conwaylife.com/patterns/fx77parallelglider.rle

    Size:29x23 | Rule:23/3

  • filterstream

    filterstream

    https://conwaylife.com/wiki/Filter_stream https://www.conwaylife.com/patterns/filterstream.rle

    Size:62x34 | Rule:23/3

  • fly

    fly

    A tagalong for an orthogonal period 3 c/3 edge-repair spaceship that was found in April 1992.

    Size:34x20 | Rule:23/3 | @lifewiki

  • figureeightonpentadecathlon

    figureeightonpentadecathlon

    The smallest known period 120 oscillator. https://www.conwaylife.com/wiki/index.php?title=Figure_eight_on_pent adecathlon

    Size:14x10 | Rule:23/3

  • fx119fast

    fx119fast

    https://conwaylife.com/wiki/Fx119 https://www.conwaylife.com/patterns/Fx119fast.rle

    Size:25x34 | Rule:23/3

  • fastforwardforcefield

    fastforwardforcefield

    A reaction involving a lightweight spaceship and three gliders. In the absence of the incoming lightweight spaceship from the left, the gliders would simply annihilate one another, but as shown they allow the spaceship to advance 11 spaces in the course of the next 6 generations. Leithner named the Fast Forward Force Field in honour of his favourite science fiction writer, the physicist Robert L. Forward.

    Size:17x7 | Rule:23/3

  • fumaroleonachimsp11

    fumaroleonachimsp11

    A small non-trivial period 55 oscillator.

    Size:29x22 | Rule:23/3 | @lifewiki

  • fx119

    fx119

    Repeat time 231 ticks -- can be reduced with additional catalysts https://conwaylife.com/wiki/Fx119 https://www.conwaylife.com/patterns/fx119.rle

    Size:23x24 | Rule:23/3

  • fumaroleon34p14shuttle

    fumaroleon34p14shuttle

    https://conwaylife.com/wiki/Fumarole_on_34P14_shuttle https://conwaylife.com/patterns/fumaroleon34p14shuttle.rle

    Size:15x21 | Rule:23/3

  • f166

    f166

    Repeat time 116 ticks https://conwaylife.com/wiki/F166 https://www.conwaylife.com/patterns/f166.rle

    Size:56x31 | Rule:23/3

  • fleet

    fleet

    A fairly common 24-cell pseudo still life made up of two ship-ties. https://www.conwaylife.com/wiki/index.php?title=Harbour

    Size:10x10 | Rule:23/3

  • frothingpuffer2

    frothingpuffer2

    Period 270 forward rake using period tripling of p90 input streams. In this rake, the base c/3 ship (found in Jan. 2002 by Paul Tooke) cycles between all three possible frothing periods: 21, 12, and 6.

    Size:249x371 | Rule:23/3

  • figureeighton36p22

    figureeighton36p22

    A small non-trivial period 88 oscillator

    Size:27x21 | Rule:23/3 | @lifewiki

  • foureatershasslingfourbookends

    foureatershasslingfourbookends

    A period 18 oscillator found by Jason Summers. https://conwaylife.com/wiki/Four_eaters_hassling_four_bookends

    Size:29x29 | Rule:23/3

  • f131variant

    f131variant

    https://conwaylife.com/wiki/F131 https://www.conwaylife.com/patterns/f131variant.rle

    Size:37x44 | Rule:23/3

  • figureeight

    figureeight

    A period 8 oscillator found in 1970.

    Size:6x6 | Rule:23/3 | @lifewiki

  • foursiamesehats

    foursiamesehats

    https://conwaylife.com/wiki/Small_lake https://www.conwaylife.com/patterns/foursiamesehats.rle

    Size:9x9 | Rule:23/3

  • fumaroleonrobsp16

    fumaroleonrobsp16

    https://conwaylife.com/wiki/Fumarole_on_Rob%27s_p16 https://www.conwaylife.com/patterns/fumaroleonrobsp16.rle

    Size:17x10 | Rule:23/3

  • fx153

    fx153

    Repeat time 69 ticks https://conwaylife.com/wiki/Fx153 https://www.conwaylife.com/patterns/fx153.rle

    Size:53x23 | Rule:23/3

  • fourblinkersaroundfourblocks

    fourblinkersaroundfourblocks

    https://conwaylife.com/wiki/Four_blinkers_around_four_blocks https://www.conwaylife.com/patterns/fourblinkersaroundfourblocks.rle

    Size:10x10 | Rule:23/3

  • figureeighton32p21

    figureeighton32p21

    https://conwaylife.com/wiki/32P21 https://www.conwaylife.com/patterns/figureeighton32p21.rle

    Size:22x17 | Rule:23/3

  • fusewithtwotails

    fusewithtwotails

    https://conwaylife.com/wiki/Fuse_with_two_tails https://www.conwaylife.com/patterns/fusewithtwotails.rle

    Size:6x6 | Rule:23/3

  • fourboats

    fourboats

    https://conwaylife.com/wiki/Four_boats https://www.conwaylife.com/patterns/fourboats.rle

    Size:8x8 | Rule:23/3

  • f131

    f131

    https://conwaylife.com/wiki/F131 https://www.conwaylife.com/patterns/f131.rle

    Size:37x35 | Rule:23/3

  • fumarole

    fumarole

    A period 5 oscillator found in September 1989.

    Size:8x7 | Rule:23/3 | @lifewiki

  • figureeightoncentinal

    figureeightoncentinal

    https://conwaylife.com/wiki/Figure_eight_on_centinal https://www.conwaylife.com/patterns/figureeightoncentinal.rle

    Size:52x25 | Rule:23/3

  • fourmoldshasslingeightblocks

    fourmoldshasslingeightblocks

    https://conwaylife.com/wiki/Four_molds_hassling_eight_blocks https://conwaylife.com/patterns/fourmoldshasslingeightblocks.rle

    Size:26x26 | Rule:23/3

  • fumaroleonbeluchenkosp13

    fumaroleonbeluchenkosp13

    Period-65 oscillator onstructed in January 2009 https://conwaylife.com/wiki/Fumarole_on_Beluchenko's_p13 https://conwaylife.com/patterns/fumaroleonbeluchenkosp13.rle

    Size:23x19 | Rule:23/3

  • figureeighton34p13

    figureeighton34p13

    A 46-cell non-trivial period 104 oscillator. https://conwaylife.com/wiki/Figure_eight_on_34P13

    Size:16x22 | Rule:23/3

  • fourteener

    fourteener

    Still life with 14 cells.

    Size:7x5 | Rule:23/3

  • fox_synth

    fox_synth

    7-glider syntheses of fox https://conwaylife.com/wiki/Fox https://conwaylife.com/forums/viewtopic.php?p=51666#p51666 https://conwaylife.com/forums/viewtopic.php?p=51678#p51678

    Size:79x39 | Rule:23/3

  • figureeightonbeluchenkosp13

    figureeightonbeluchenkosp13

    Period 104 oscillator constructed in January 2009 https://conwaylife.com/wiki/Figure_eight_on_Beluchenko's_p13 https://conwaylife.com/patterns/figureeightonbeluchenkosp13.rle

    Size:23x19 | Rule:23/3

  • fx119suppressed

    fx119suppressed

    https://conwaylife.com/wiki/Fx119 https://www.conwaylife.com/patterns/Fx119suppressed.rle

    Size:27x38 | Rule:23/3

  • firespitting

    firespitting

    A small period-3 oscillator found by Nicolay Beluchenko in September 2003. https://conwaylife.com/wiki/Fire-spitting

    Size:8x10 | Rule:23/3

  • fourteener_synth

    fourteener_synth

    Glider syntheses of fourteener https://www.conwaylife.com/wiki/index.php?title=Fourteener

    Size:76x25 | Rule:23/3

  • foreandback_synth

    foreandback_synth

    Glider synthesis of fore and back https://conwaylife.com/wiki/fore_and_back

    Size:30x18 | Rule:23/3

  • fumaroleonp76piheptominohassler

    fumaroleonp76piheptominohassler

    https://conwaylife.com/wiki/P76_pi-heptomino_hassler https://www.conwaylife.com/patterns/fumaroleonp76piheptominohassler.rle

    Size:26x34 | Rule:23/3

  • fumaroleonp18biblockhassler

    fumaroleonp18biblockhassler

    https://conwaylife.com/wiki/Fumarole_on_p18_bi-block_hassler https://conwaylife.com/patterns/fumaroleonp18biblockhassler.rle

    Size:23x18 | Rule:23/3

  • fusewithtwolongtails

    fusewithtwolongtails

    https://conwaylife.com/wiki/Fuse_with_two_long_tails https://conwaylife.com/patterns/fusewithtwolongtails.rle

    Size:4x8 | Rule:23/3

  • fx70periodquadrupler

    fx70periodquadrupler

    https://conwaylife.com/wiki/Period_multiplier https://www.conwaylife.com/patterns/fx70periodquadrupler.rle

    Size:60x35 | Rule:23/3

  • fx77sw

    fx77sw

    https://conwaylife.com/wiki/Fx77 https://www.conwaylife.com/patterns/fx77sw.rle

    Size:29x21 | Rule:23/3

  • figureeight_synth

    figureeight_synth

    Glider syntheses of figure eights. https://www.conwaylife.com/ref/mniemiec/glider-4.htm

    Size:82x98 | Rule:23/3

  • fumaroleon34p13

    fumaroleon34p13

    The smallest known non-trivial period 65 oscillator https://www.conwaylife.com/wiki/index.php?title=Fumarole_on_34P13

    Size:21x18 | Rule:23/3

  • fumaroleon44p38

    fumaroleon44p38

    https://conwaylife.com/wiki/Raucci%27s_p38 https://www.conwaylife.com/patterns/fumaroleon44p38.rle

    Size:21x42 | Rule:23/3

  • foreandback

    foreandback

    A period 2 oscillator found in July 1994.

    Size:7x7 | Rule:23/3 | @lifewiki

  • fireshipreflect

    fireshipreflect

    https://conwaylife.com/wiki/Fireship https://www.conwaylife.com/patterns/fireshipreflect.rle

    Size:15x24 | Rule:23/3

  • fumarole_synth

    fumarole_synth

    Incremental synthesis by Mark Niemiec, direct synthesis by Stephen Silver https://www.conwaylife.com/wiki/index.php?title=Fumarole

    Size:191x52 | Rule:23/3

  • flyonfly

    flyonfly

    https://conwaylife.com/wiki/Fly https://www.conwaylife.com/patterns/flyonfly.rle

    Size:60x28 | Rule:23/3

  • fx77extraglider

    fx77extraglider

    https://conwaylife.com/wiki/Fx77 https://www.conwaylife.com/patterns/fx77extraglider.rle

    Size:194x87 | Rule:23/3

  • fusewithtailandnine

    fusewithtailandnine

    https://conwaylife.com/wiki/Fuse_with_tail_and_nine https://www.conwaylife.com/patterns/fusewithtailandnine.rle

    Size:7x7 | Rule:23/3

  • figureeighton44p38

    figureeighton44p38

    https://conwaylife.com/wiki/44P38 https://www.conwaylife.com/patterns/figureeighton44p38.rle

    Size:44x24 | Rule:23/3

  • fourtempestshasslingequalssign

    fourtempestshasslingequalssign

    https://conwaylife.com/wiki/Tempest https://www.conwaylife.com/patterns/fourtempestshasslingequalssign.rle

    Size:23x23 | Rule:23/3

  • fourreagents

    fourreagents

    https://conwaylife.com/wiki/Grin_reagent https://www.conwaylife.com/patterns/fourreagents.rle

    Size:32x32 | Rule:23/3

  • flyingwing

    flyingwing

    https://conwaylife.com/wiki/Flying_wing https://conwaylife.com/patterns/flyingwing.rle

    Size:159x90 | Rule:23/3

  • figure8glidersynth

    figure8glidersynth

    https://conwaylife.com/wiki/Figure_eight https://www.conwaylife.com/patterns/figure8glidersynth.rle

    Size:11x11 | Rule:23/3

  • fred

    fred

    Longest-lived known methuselah to fit within a 20x20 bounding box. Settling time 35426 generations, discovered 15 May 2010. https://www.conwaylife.com/wiki/C/Fred https://www.conwaylife.com/patterns/fred.rle

    Size:20x20 | Rule:23/3

  • finiteplane

    finiteplane

    https://conwaylife.com/wiki/Finite_plane https://conwaylife.com/patterns/finiteplane.rle

    Size:100x100 | Rule:23/3

  • fx77

    fx77

    https://conwaylife.com/wiki/Fx77 https://www.conwaylife.com/patterns/fx77.rle

    Size:30x61 | Rule:23/3

  • fusewithtailandverylongtail

    fusewithtailandverylongtail

    https://conwaylife.com/wiki/Fuse_with_tail_and_very_long_tail https://conwaylife.com/patterns/fusewithtailandverylongtail.rle

    Size:8x5 | Rule:23/3

  • frogii

    frogii

    A period 3 oscillator found in October 1972.

    Size:11x13 | Rule:23/3 | @lifewiki

  • flyon60p3h1v0dot3

    flyon60p3h1v0dot3

    https://conwaylife.com/wiki/Fly https://www.conwaylife.com/patterns/flyon60P3H1V0dot3.rle

    Size:34x33 | Rule:23/3

  • fusewithtailandlongtail

    fusewithtailandlongtail

    https://conwaylife.com/wiki/Fuse_with_tail_and_long_tail https://conwaylife.com/patterns/fusewithtailandlongtail.rle

    Size:7x5 | Rule:23/3

  • frenchkiss

    frenchkiss

    A period 3 oscillator found in July 1971.

    Size:10x9 | Rule:23/3 | @lifewiki

  • fx77s

    fx77s

    https://conwaylife.com/wiki/Fx77 https://www.conwaylife.com/patterns/fx77s.rle

    Size:29x21 | Rule:23/3

  • fireship

    fireship

    https://conwaylife.com/wiki/Fireship https://conwaylife.com/patterns/fireship.rle

    Size:12x21 | Rule:23/3

  • flybydeletiontub

    flybydeletiontub

    https://conwaylife.com/wiki/Fly-by_deletion https://www.conwaylife.com/patterns/flybydeletiontub.rle

    Size:33x16 | Rule:23/3

  • figure8on22p36

    figure8on22p36

    Size:28x26 | Rule:23/3

  • fumaroleonrichsp16

    fumaroleonrichsp16

    https://conwaylife.com/wiki/Fumarole_on_Rich%27s_p16 https://conwaylife.com/patterns/fumaroleonrichsp16.rle

    Size:13x20 | Rule:23/3

  • feather

    feather

    https://conwaylife.com/wiki/Feather https://conwaylife.com/patterns/feather.rle

    Size:3x4 | Rule:23/3

  • f117

    f117

    Repeat time 63 ticks https://conwaylife.com/wiki/F117 https://www.conwaylife.com/patterns/f117.rle

    Size:45x22 | Rule:23/3

  • frenchkiss_synth

    frenchkiss_synth

    Glider synthesis of the French kiss, January 2017: https://www.conwaylife.com/forums/viewtopic.php?p=39264#p39264 https://conwaylife.com/wiki/French_kiss

    Size:57x46 | Rule:23/3

  • f116

    f116

    Repeat time 138 ticks, or 120 ticks with an additional sparker https://conwaylife.com/wiki/F116 https://www.conwaylife.com/patterns/f116.rle

    Size:35x28 | Rule:23/3

  • fountain

    fountain

    A period 4 oscillator found in November 1994.

    Size:19x15 | Rule:23/3 | @lifewiki

  • fheptomino_synth

    fheptomino_synth

    Glider synthesis of an F-heptomino. https://conwaylife.com/wiki/F-heptomino

    Size:8x11 | Rule:23/3

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