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 241st stefangimmillaro 788 140 130ms 28 Oct 2022 242nd m-tkach 🇺🇦 788 142 17ms 28 Jul 2022 243rd emgordon154 785 127 532ms 6 May 2025 244th stefangimmillaro 785 204 177ms 12 May 2024 245th MeWhenI 🇻🇦 784 140 87ms 6 Nov 2023 246th AlephSquirrel 782 143 11ms 3 Jan 2023 247th KatieLG 🇬🇧 779 128 603ms 17 Nov 2024 248th dokutan 779 586 10ms 22 days ago 249th jared-hughes 777 144 19ms 31 Jan 2023 250th annaproxy 772 145 11ms 21 Jul 2022 251st jared-hughes 771 113 38ms 23 Jul 2022 252nd MeWhenI 🇻🇦 769 144 219ms 17 Nov 2022 253rd inventshah 764 166 11ms 18 May 2022 254th MeWhenI 🇻🇦 763 117 1,377ms 30 Aug 2025 255th MeWhenI 🇻🇦 763 259 1,966ms 7 Nov 2025 256th emgordon154 761 350 1,515ms 5 Feb 2025 257th commandz0 🇺🇸 756 148 12ms 6 Jul 2023 258th kg583 🇺🇸 755 132 562ms 3 Dec 2025 259th CLOStrophobic 🇮🇹 754 160 5ms 20 Feb 2025 260th DialFrost 🇸🇬 754 175 100ms 2 Aug 2024 261st duckyluuk 🇳🇱 754 234 5ms 25 Jun 2025 262nd neel11235813 751 149 11ms 5 Feb 2024 262nd fourth-bit 751 149 10ms 3 Sep 2024 264th SirBogman 🇺🇸 750 133 587ms 16 Jan 2024 265th GolfingSuccess 🇬🇷 750 235 5ms 23 Dec 2024 266th TeodorDyakov 🇧🇬 749 168 603ms 11 Jan 2026 267th MeWhenI 🇻🇦 749 264 40ms 17 May 2023 268th GrayJoKing 🇦🇺 747 236 7ms 21 Nov 2025 269th AlephSquirrel 747 243 4ms 3 Aug 2024 270th lynn 746 211 29ms 20 Jul 2023 271st AlephSquirrel 744 134 546ms 22 Jan 2024 272nd lifthrasiir 🇰🇷 741 105 3ms 6 Dec 2024 273rd bricknellj 741 151 10ms 17 Nov 2022 274th SirBogman 🇺🇸 740 131 326ms 5 Jan 2024 275th annaproxy 732 218 124ms 21 Jul 2022 276th retrohun 729 174 14ms 2 Jan 2023 277th MeWhenI 🇻🇦 729 220 3ms 10 Sep 2022 278th prplz 🇦🇺 728 173 714ms 29 Sep 2021 279th NewDefectus 🇮🇱 725 113 56ms 5 Dec 2021 280th lifthrasiir 🇰🇷 722 155 10ms 16 Nov 2024 280th ndren 722 155 10ms 14 Jul 2025 282nd SirBogman 🇺🇸 713 107 162ms 23 Jul 2022 283rd neel11235813 712 140 504ms 1 Apr 2024 284th tayloia 🇬🇧 712 189 13ms 13 Jan 2023 285th Yax42 🇫🇷 709 167 448ms 23 Jan 2025 286th sisyphus-ppcg 🇦🇺 708 179 13ms 18 May 2022 287th kg583 🇺🇸 708 209 47ms 4 Dec 2025 288th anter69 🇭🇺 707 130 1,619ms 12 days ago 289th Lydxn 🇨🇦 707 198 2ms 27 May 2023 290th andersk 🇺🇸 706 227 206ms 31 Oct 2022 291st sisyphus-ppcg 🇦🇺 705 156 2ms 29 Jul 2022 292nd Lydxn 🇨🇦 704 164 5ms 2 Jul 2023 293rd dokutan 704 216 2ms 12 Feb 2025 294th snoozingnewt 🇨🇦 703 148 128ms 6 Dec 2025 295th MeWhenI 🇻🇦 702 170 401ms 30 Jan 2023 296th dokutan 701 158 237ms 14 Dec 2025 297th marshallward 🇺🇸 701 282 42ms 22 Jul 2022 298th emgordon154 700 192 10ms 6 Sep 2024 299th inventshah 700 200 2ms 15 Nov 2022 300th argusdusty 🇺🇸 700 229 187ms 2 Jan 2021 301st dokutan 699 160 15ms 15 Feb 2026 302nd sean-niemann 🇺🇸 698 226 365ms 10 Jul 2024 303rd kg583 🇺🇸 697 173 6ms 4 Dec 2025 304th Irratix 🇳🇱 695 161 10ms 21 Sep 2022 305th anter69 🇭🇺 693 121 35ms 13 days ago 306th tomtheisen 🇺🇸 693 171 480ms 6 Feb 2025 307th marcin7Cd 691 162 11ms 18 Dec 2020 307th snoozingnewt 🇨🇦 691 162 11ms 2 Dec 2025 309th AdrienHache 🇫🇷 688 119 54ms 5 Apr 2024 310th commandz0 🇺🇸 688 145 518ms 1 Sep 2025 311th dokutan 688 233 2ms 12 Feb 2025 312th dokutan 686 204 2ms 14 Dec 2025 313th attila8192 683 197 10ms 11 May 2025 314th adyache 🇺🇸 682 218 6ms 30 Jul 2023 315th AdrienHache 🇫🇷 681 174 496ms 25 Jul 2025 316th inventshah 679 198 11ms 13 Nov 2022 316th MeWhenI 🇻🇦 679 198 11ms 30 Jan 2023 318th Natanaelel 🇸🇪 679 235 148ms 22 Aug 2024 319th lifthrasiir 🇰🇷 678 147 525ms 2 Dec 2024 320th MeWhenI 🇻🇦 677 163 145ms 15 Oct 2022 First Prev 241–320 of 1,346 Next Last