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 81st edsrzf 🇳🇿 878 113 13ms 20 Sep 2025 82nd edsrzf 🇳🇿 877 98 2,616ms 31 Oct 2025 83rd JayXon 🇺🇸 877 107 173ms 4 Nov 2025 84th SirBogman 🇺🇸 876 55 33ms 27 Dec 2022 84th stackofbears 876 55 33ms 23 Feb 2024 86th nwellnhof 🇩🇪 876 104 419ms 7 Mar 2023 86th namelessiw 876 104 421ms 19 May 2025 88th canissimia 🇦🇶 876 108 306ms 4 Nov 2025 89th JayXon 🇺🇸 876 126 118ms 3 Nov 2025 90th edsrzf 🇳🇿 875 49 148ms 6 Nov 2025 91st sean-niemann 🇺🇸 875 113 21ms 5 days ago 92nd Steffan153 🇫🇮 874 100 12ms 16 Aug 2024 93rd zacjl 873 128 11ms 16 days ago 94th nwellnhof 🇩🇪 873 150 458ms 25 Sep 2025 94th ScottHamper 873 150 457ms 30 Nov 2025 96th stefangimmillaro 872 79 96ms 26 Dec 2024 97th JayXon 🇺🇸 871 117 448ms 31 Dec 2022 98th edsrzf 🇳🇿 871 129 43ms 31 Dec 2025 99th edsrzf 🇳🇿 869 127 120ms 3 Nov 2025 100th edsrzf 🇳🇿 869 146 11ms 19 Sep 2025 101st GrayJoKing 🇦🇺 868 101 16ms 3 Dec 2025 102nd edsrzf 🇳🇿 867 114 4ms 31 Dec 2025 103rd edsrzf 🇳🇿 867 125 64ms 9 Dec 2025 104th ovs-code 🇩🇪 867 139 95ms 22 Dec 2022 105th sisyphus-ppcg 🇦🇺 865 101 11ms 23 Dec 2022 105th sean-niemann 🇺🇸 865 101 14ms 5 days ago 107th edsrzf 🇳🇿 865 161 44ms 21 Sep 2025 108th edsrzf 🇳🇿 864 132 1,384ms 21 Sep 2025 109th GrayJoKing 🇦🇺 863 115 19ms 3 Dec 2025 110th JayXon 🇺🇸 863 134 90ms 19 Sep 2025 111th edsrzf 🇳🇿 863 150 51ms 11 Nov 2025 112th pardouin 🇫🇷 861 80 37ms 22 Aug 2025 113th FlyingPenguin223 861 123 3ms 7 Mar 2025 114th Steffan153 🇫🇮 859 106 432ms 16 Aug 2024 115th Shanethegamer 🇺🇸 859 130 14ms 10 Jan 2025 116th edsrzf 🇳🇿 857 135 6ms 19 Sep 2025 117th lynn 857 143 999ms 3 Feb 2023 118th Steffan153 🇫🇮 856 129 104ms 13 hours ago 119th edsrzf 🇳🇿 856 154 29ms 31 Dec 2025 120th blaztoma 🇱🇹 854 124 2ms 4 Jan 2026 121st m-tkach 🇺🇦 854 163 29ms 5 May 2025 122nd Kacarott 🇦🇺 853 127 62ms 9 Dec 2025 123rd xsot 🇸🇬 851 93 8ms 9 Nov 2025 124th rhdqor213 850 114 2ms 13 Dec 2023 125th edsrzf 🇳🇿 850 152 93ms 28 Oct 2025 126th edsrzf 🇳🇿 850 154 487ms 5 Jan 2026 127th m-tkach 🇺🇦 847 226 66ms 29 Jan 2024 128th Steffan153 🇫🇮 846 132 18ms 14 days ago 129th 4hg 🇺🇸 845 57 31ms 28 Jul 2023 130th edsrzf 🇳🇿 845 111 172ms 16 Jan 2026 131st IanUtley 845 143 123ms 25 Dec 2022 132nd Yax42 🇫🇷 843 108 422ms 26 Dec 2024 132nd AdrienHache 🇫🇷 843 108 446ms 10 Feb 2025 132nd sean-niemann 🇺🇸 843 108 465ms 20 Jun 2025 135th MeWhenI 🇻🇦 843 148 9ms 30 Oct 2023 136th edsrzf 🇳🇿 842 180 43ms 19 Sep 2025 137th Steffan153 🇫🇮 841 103 622ms 16 hours ago 138th stefangimmillaro 841 118 19ms 25 Dec 2022 138th duckyluuk 🇳🇱 841 118 12ms 1 Jan 2025 138th pardouin 🇫🇷 841 118 30ms 22 Aug 2025 138th ryyyn 🇺🇸 841 118 12ms 11 Nov 2025 138th Seek64 🇩🇪 841 118 12ms 20 Nov 2025 138th sean-niemann 🇺🇸 841 118 22ms 5 days ago 144th Steffan153 🇫🇮 841 126 2ms 16 Aug 2024 145th edsrzf 🇳🇿 838 134 131ms 29 Nov 2025 146th nwellnhof 🇩🇪 837 161 312ms 7 Mar 2023 147th stefangimmillaro 837 165 44ms 3 Oct 2023 147th SirBogman 🇺🇸 837 165 43ms 18 Aug 2025 149th edsrzf 🇳🇿 836 110 47ms 22 Feb 2026 150th saito-ta 🇯🇵 836 116 2ms 28 Dec 2022 151st stefangimmillaro 835 103 2,631ms 23 Nov 2024 152nd acotis 835 162 186ms 27 Apr 2025 153rd JayXon 🇺🇸 835 173 1,728ms 22 Apr 2024 154th hallvabo 🇳🇴 834 119 14ms 23 Dec 2022 154th xnor-gate 834 119 12ms 3 Jan 2023 156th Shanethegamer 🇺🇸 834 130 64ms 14 Dec 2024 157th pardouin 🇫🇷 832 94 1,387ms 22 Aug 2025 158th nwellnhof 🇩🇪 832 142 435ms 30 Dec 2022 159th Natanaelel 🇸🇪 831 58 33ms 2 Nov 2023 160th Shanethegamer 🇺🇸 830 151 1,052ms 10 Jan 2025 First Prev 81–160 of 858 Next Last