The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?
Game of Life in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 161st UnderKoen 🇳🇱 829 231 7ms 20 Jan 2025 162nd ovs-code 🇩🇪 827 120 12ms 13 May 2025 163rd Bubbler-4 826 46 2ms 22 Dec 2022 164th edsrzf 🇳🇿 824 96 7ms 3 Nov 2025 165th dmrichwa 🇺🇸 824 106 12ms 8 Sep 2023 166th m-tkach 🇺🇦 824 160 25ms 1 Jan 2026 167th Steffan153 🇫🇮 823 95 1,400ms 24 Dec 2022 168th GrayJoKing 🇦🇺 820 84 52ms 3 Dec 2025 168th sean-niemann 🇺🇸 820 84 77ms 5 days ago 170th bizy-coder 820 121 18ms 26 Dec 2022 170th AlephSquirrel 820 121 20ms 9 Jun 2023 170th kg583 🇺🇸 820 121 20ms 3 Mar 2025 170th CornerMercury 🇬🇧 820 121 12ms 25 days ago 174th albanian-laundromat 819 137 285ms 12 Nov 2025 175th clockworknazo 819 158 7ms 19 Jun 2023 176th kg583 🇺🇸 819 185 39ms 25 Jul 2025 177th antimon2 🇯🇵 818 93 803ms 29 Dec 2022 177th Steffan153 🇫🇮 818 93 1,819ms 17 Aug 2024 179th Lydxn 🇨🇦 817 106 839ms 2 Feb 2024 180th duckyluuk 🇳🇱 817 107 11ms 24 Oct 2025 181st Steffan153 🇫🇮 816 148 155ms 25 Dec 2022 181st annaproxy 816 148 152ms 26 Dec 2022 183rd ovs-code 🇩🇪 815 145 464ms 24 Aug 2024 184th canissimia 🇦🇶 815 205 8ms 27 Dec 2022 185th nwellnhof 🇩🇪 814 119 2ms 27 Dec 2022 186th albanian-laundromat 814 138 41ms 31 Oct 2025 187th dvargas46 🇺🇸 813 113 346ms 23 Dec 2022 188th Steffan153 🇫🇮 812 166 307ms 16 Aug 2024 189th Sakisan 🇧🇪 811 151 391ms 6 Feb 2023 190th edsrzf 🇳🇿 811 156 40ms 7 days ago 191st albanian-laundromat 811 357 11ms 10 days ago 192nd ovs-code 🇩🇪 810 85 35ms 22 Feb 2025 193rd sisyphus-ppcg 🇦🇺 810 146 447ms 30 Dec 2022 194th emgordon154 809 53 183ms 17 Nov 2025 195th Irratix 🇳🇱 809 108 14ms 22 Dec 2022 195th prplz 🇦🇺 809 108 10ms 23 Dec 2022 197th Steffan153 🇫🇮 809 160 15ms 11 Feb 2026 198th lynn 809 172 62ms 6 Aug 2023 199th edsrzf 🇳🇿 807 167 296ms 4 Nov 2025 200th albanian-laundromat 806 268 1,493ms 28 Oct 2025 201st Steffan153 🇫🇮 805 173 63ms 12 Feb 2026 202nd pardouin 🇫🇷 804 107 2,660ms 13 May 2025 203rd Steffan153 🇫🇮 803 142 1,320ms 4 Jan 2023 204th AlephSquirrel 803 158 103ms 30 Nov 2024 205th sean-niemann 🇺🇸 802 108 504ms 5 days ago 206th KingSkyrock 🇺🇸 802 109 12ms 23 Dec 2022 207th sean-niemann 🇺🇸 802 132 2ms 9 Feb 2023 208th Natanaelel 🇸🇪 801 86 41ms 7 May 2025 208th m-tkach 🇺🇦 801 86 324ms 21 Jul 2025 210th ovs-code 🇩🇪 800 95 552ms 9 May 2024 211th bzijlema 🇳🇱 800 124 19ms 21 Jul 2025 212th sean-niemann 🇺🇸 799 99 5ms 26 Dec 2024 213th snoozingnewt 🇨🇦 798 151 144ms 21 days ago 214th kg583 🇺🇸 798 159 27ms 29 Nov 2024 215th stefangimmillaro 798 164 705ms 6 Oct 2025 216th Shanethegamer 🇺🇸 797 271 1,545ms 22 Jan 2025 217th duckyluuk 🇳🇱 795 109 524ms 1 Jan 2025 217th pardouin 🇫🇷 795 109 430ms 22 Aug 2025 219th uttumuttu 🇫🇮 794 110 13ms 19 Jun 2023 220th scpchicken 🇵🇼 794 125 33ms 1 Jan 2023 221st jared-hughes 793 149 450ms 22 Dec 2022 222nd stefangimmillaro 793 170 301ms 1 Nov 2024 223rd tatzyr 🇯🇵 792 87 67ms 13 Mar 2025 224th Steffan153 🇫🇮 791 155 373ms 3 Feb 2023 225th Steffan153 🇫🇮 791 156 114ms 16 Aug 2024 226th sisyphus-ppcg 🇦🇺 788 123 2ms 23 Dec 2022 226th ovs-code 🇩🇪 788 123 2ms 23 Dec 2022 226th Alex-x90 🇺🇸 788 123 5ms 8 Feb 2024 229th prplz 🇦🇺 788 126 12ms 30 Dec 2022 229th Dataen 788 126 16ms 5 Jan 2024 229th 5cw 🇺🇸 788 126 13ms 21 Mar 2024 229th blaztoma 🇱🇹 788 126 17ms 3 Jan 2026 229th Emutis 🇱🇹 788 126 18ms 12 Jan 2026 234th m-tkach 🇺🇦 788 150 416ms 28 Dec 2022 235th blaztoma 🇱🇹 787 111 12ms 30 Dec 2025 236th MeWhenI 🇻🇦 785 272 19ms 23 Apr 2024 237th scpchicken 🇵🇼 783 88 63ms 10 Mar 2023 238th duckyluuk 🇳🇱 783 112 17ms 28 Nov 2025 239th GolfingSuccess 🇬🇷 783 151 481ms 18 May 2025 240th kg583 🇺🇸 781 111 518ms 3 Mar 2025 First Prev 161–240 of 858 Next Last