The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 7 days. Why not try and solve them ahead of time?
Emojify 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 sean-niemann 🇺🇸 877 121 2ms 6 Aug 2025 162nd stefangimmillaro 876 180 331ms 4 Oct 2024 163rd CaedenHarper 🇨🇦 875 114 502ms 1 Aug 2025 164th MeWhenI 🇻🇦 874 128 44ms 24 May 2024 164th KatieLG 🇬🇧 874 128 17ms 17 Nov 2024 164th CornerMercury 🇬🇧 874 128 11ms 3 Nov 2025 167th MeWhenI 🇻🇦 872 96 43ms 28 Jul 2022 168th stefangimmillaro 871 227 40ms 31 May 2025 168th JayXon 🇺🇸 871 227 1,949ms 14 Sep 2025 170th stefangimmillaro 870 77 2ms 26 May 2024 171st stefangimmillaro 867 106 1,569ms 11 May 2024 172nd edsrzf 🇳🇿 865 182 27ms 10 Feb 2026 173rd MeWhenI 🇻🇦 864 210 4ms 16 Jul 2023 174th Steffan153 🇫🇮 863 116 4ms 11 Feb 2026 175th duckyluuk 🇳🇱 861 130 11ms 26 Jul 2024 176th acotis 861 186 174ms 20 Feb 2026 177th b-illy 🇬🇧 860 116 572ms 7 Sep 2024 178th antimon2 🇯🇵 859 92 435ms 10 May 2024 179th typeswitch-dev 🇵🇹 856 212 4ms 4 Aug 2023 180th error256 856 311 1,600ms 28 Mar 2025 181st MeWhenI 🇻🇦 855 213 1,021ms 21 Jul 2022 182nd Bulmenisaurus 854 131 10ms 12 Aug 2024 182nd blaztoma 🇱🇹 854 131 10ms 3 Jan 2026 182nd Emutis 🇱🇹 854 131 10ms 12 Jan 2026 182nd ryyyn 🇺🇸 854 131 10ms 12 Feb 2026 186th inventshah 852 156 467ms 26 Mar 2025 187th DialFrost 🇸🇬 851 158 11ms 30 Jan 2023 187th Argeento 🇵🇱 851 158 10ms 28 Sep 2023 187th stefangimmillaro 851 158 13ms 11 May 2024 190th sean-niemann 🇺🇸 849 118 4ms 6 Aug 2025 191st primo-ppcg 🇹🇭 848 165 3ms 13 Nov 2022 192nd Steffan153 🇫🇮 846 208 71ms 72 mins ago 193rd Kacarott 🇦🇺 845 130 80ms 6 May 2024 194th saito-ta 🇯🇵 845 150 12ms 30 Sep 2022 195th primo-ppcg 🇹🇭 845 351 10ms 2 Aug 2023 196th hallvabo 🇳🇴 841 133 12ms 27 Jul 2022 196th stefangimmillaro 841 133 12ms 5 May 2023 196th emgordon154 841 133 30ms 2 Aug 2025 199th jared-hughes 841 158 453ms 31 Jan 2023 200th primo-ppcg 🇹🇭 841 235 41ms 25 May 2025 201st namelessiw 840 141 455ms 24 Aug 2025 202nd stefangimmillaro 839 100 34ms 26 Dec 2024 203rd stefangimmillaro 836 165 2,586ms 31 Oct 2023 204th canissimia 🇦🇶 836 376 3ms 9 Apr 2024 205th plcc0 835 134 10ms 14 Jan 2026 206th jared-hughes 835 161 11ms 31 Jan 2023 207th MeWhenI 🇻🇦 834 151 782ms 7 Nov 2025 208th MeWhenI 🇻🇦 831 120 496ms 24 May 2024 209th kumavale 830 193 189ms 3 days ago 210th o0lit3 🇺🇸 829 110 3ms 27 Nov 2020 211th jared-hughes 829 128 2ms 31 Jan 2023 211th inventshah 829 128 2ms 26 Mar 2025 213th lifthrasiir 🇰🇷 829 350 8ms 12 Dec 2024 214th rucin93 🇵🇱 826 147 186ms 31 Oct 2024 215th lynn 826 194 174ms 4 Dec 2025 216th bizy-coder 823 136 29ms 19 Oct 2024 217th Lydxn 🇨🇦 823 153 668ms 12 Dec 2022 218th jacobly0 🇺🇸 819 171 2ms 13 Sep 2023 219th MeWhenI 🇻🇦 817 82 2ms 27 Oct 2021 220th duckyluuk 🇳🇱 817 122 536ms 26 Jul 2024 221st stefangimmillaro 817 145 463ms 11 May 2024 222nd ovs-code 🇩🇪 815 149 178ms 17 Apr 2025 223rd janlelis 814 103 35ms 22 Jul 2022 224th MeWhenI 🇻🇦 813 194 400ms 17 Apr 2023 225th MeWhenI 🇻🇦 812 170 1,147ms 8 Mar 2023 226th 5cw 🇺🇸 811 138 11ms 10 Aug 2025 226th qpwoeirut 811 138 12ms 6 Nov 2025 228th Irratix 🇳🇱 810 166 14ms 20 Sep 2022 229th MeWhenI 🇻🇦 808 124 4ms 16 Aug 2024 230th SirBogman 🇺🇸 803 246 40ms 28 Nov 2023 231st SirBogman 🇺🇸 799 105 34ms 25 Jul 2022 232nd kg583 🇺🇸 799 140 10ms 3 Dec 2025 233rd error256 796 138 84ms 9 Jul 2024 234th SirBogman 🇺🇸 793 141 10ms 25 Jul 2022 234th inventshah 793 141 10ms 17 Nov 2022 234th anter69 🇭🇺 793 141 10ms 19 Mar 2024 237th MeWhenI 🇻🇦 792 116 1,558ms 11 May 2023 238th rucin93 🇵🇱 792 192 2ms 7 Dec 2025 239th ovs-code 🇩🇪 791 188 3ms 27 Sep 2024 240th stefangimmillaro 788 140 130ms 28 Oct 2022 First Prev 161–240 of 1,345 Next Last