The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 24 hours. 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 81st stefangimmillaro 879 89 1,301ms 1 Jan 2023 82nd edsrzf 🇳🇿 878 105 5ms 19 Sep 2025 83rd edsrzf 🇳🇿 878 113 13ms 20 Sep 2025 84th edsrzf 🇳🇿 877 98 2,616ms 31 Oct 2025 85th JayXon 🇺🇸 877 107 173ms 4 Nov 2025 86th edsrzf 🇳🇿 876 49 148ms 6 Nov 2025 87th SirBogman 🇺🇸 876 55 33ms 27 Dec 2022 87th stackofbears 876 55 33ms 23 Feb 2024 89th nwellnhof 🇩🇪 876 104 419ms 7 Mar 2023 89th namelessiw 876 104 421ms 19 May 2025 91st canissimia 🇦🇶 876 108 306ms 4 Nov 2025 92nd JayXon 🇺🇸 876 126 118ms 3 Nov 2025 93rd sean-niemann 🇺🇸 875 113 21ms 8 days ago 94th Steffan153 🇫🇮 875 121 2ms 2 days ago 95th zacjl 873 128 11ms 19 days ago 96th nwellnhof 🇩🇪 873 150 458ms 25 Sep 2025 96th ScottHamper 873 150 457ms 30 Nov 2025 98th stefangimmillaro 872 79 96ms 26 Dec 2024 99th JayXon 🇺🇸 871 117 448ms 31 Dec 2022 100th edsrzf 🇳🇿 871 129 43ms 31 Dec 2025 101st edsrzf 🇳🇿 869 127 120ms 3 Nov 2025 102nd edsrzf 🇳🇿 869 146 11ms 19 Sep 2025 103rd GrayJoKing 🇦🇺 868 101 16ms 3 Dec 2025 104th edsrzf 🇳🇿 867 114 4ms 31 Dec 2025 105th edsrzf 🇳🇿 867 125 64ms 9 Dec 2025 106th ovs-code 🇩🇪 867 139 95ms 22 Dec 2022 107th sisyphus-ppcg 🇦🇺 865 101 11ms 23 Dec 2022 107th sean-niemann 🇺🇸 865 101 11ms 8 days ago 109th edsrzf 🇳🇿 865 161 44ms 21 Sep 2025 110th edsrzf 🇳🇿 864 132 1,384ms 21 Sep 2025 111th GrayJoKing 🇦🇺 863 115 19ms 3 Dec 2025 112th JayXon 🇺🇸 863 134 90ms 19 Sep 2025 113th edsrzf 🇳🇿 863 150 51ms 11 Nov 2025 114th pardouin 🇫🇷 861 80 37ms 22 Aug 2025 115th FlyingPenguin223 861 123 3ms 7 Mar 2025 116th Steffan153 🇫🇮 859 106 432ms 16 Aug 2024 117th Shanethegamer 🇺🇸 859 130 14ms 10 Jan 2025 118th edsrzf 🇳🇿 857 135 6ms 19 Sep 2025 119th lynn 857 143 999ms 3 Feb 2023 120th Steffan153 🇫🇮 856 129 104ms 3 days ago 121st edsrzf 🇳🇿 856 154 29ms 31 Dec 2025 122nd blaztoma 🇱🇹 854 124 2ms 4 Jan 2026 123rd m-tkach 🇺🇦 854 163 29ms 5 May 2025 124th Kacarott 🇦🇺 853 127 62ms 9 Dec 2025 125th xsot 🇸🇬 851 93 8ms 9 Nov 2025 126th Steffan153 🇫🇮 850 79 1,846ms 2 days ago 127th rhdqor213 850 114 2ms 13 Dec 2023 128th edsrzf 🇳🇿 850 152 93ms 28 Oct 2025 129th edsrzf 🇳🇿 850 154 487ms 5 Jan 2026 130th m-tkach 🇺🇦 847 226 66ms 29 Jan 2024 131st Steffan153 🇫🇮 846 132 18ms 17 days ago 132nd 4hg 🇺🇸 845 57 31ms 28 Jul 2023 133rd edsrzf 🇳🇿 845 111 172ms 16 Jan 2026 134th IanUtley 845 143 123ms 25 Dec 2022 135th Yax42 🇫🇷 843 108 422ms 26 Dec 2024 135th AdrienHache 🇫🇷 843 108 446ms 10 Feb 2025 135th sean-niemann 🇺🇸 843 108 465ms 20 Jun 2025 138th MeWhenI 🇻🇦 843 148 9ms 30 Oct 2023 139th edsrzf 🇳🇿 842 180 43ms 19 Sep 2025 140th Steffan153 🇫🇮 841 103 609ms 3 days ago 141st stefangimmillaro 841 118 19ms 25 Dec 2022 141st duckyluuk 🇳🇱 841 118 12ms 1 Jan 2025 141st pardouin 🇫🇷 841 118 30ms 22 Aug 2025 141st ryyyn 🇺🇸 841 118 12ms 11 Nov 2025 141st Seek64 🇩🇪 841 118 12ms 20 Nov 2025 141st sean-niemann 🇺🇸 841 118 22ms 8 days ago 147th edsrzf 🇳🇿 838 108 42ms 44 hours ago 148th edsrzf 🇳🇿 838 134 131ms 29 Nov 2025 149th nwellnhof 🇩🇪 837 161 312ms 7 Mar 2023 150th stefangimmillaro 837 165 44ms 3 Oct 2023 150th SirBogman 🇺🇸 837 165 43ms 18 Aug 2025 152nd saito-ta 🇯🇵 836 116 2ms 28 Dec 2022 153rd stefangimmillaro 835 103 2,631ms 23 Nov 2024 154th acotis 835 162 186ms 27 Apr 2025 155th JayXon 🇺🇸 835 173 1,728ms 22 Apr 2024 156th hallvabo 🇳🇴 834 119 14ms 23 Dec 2022 156th xnor-gate 834 119 12ms 3 Jan 2023 158th Shanethegamer 🇺🇸 834 130 64ms 14 Dec 2024 159th pardouin 🇫🇷 832 94 1,387ms 22 Aug 2025 160th nwellnhof 🇩🇪 832 142 435ms 30 Dec 2022 First Prev 81–160 of 860 Next Last