The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 days. Why not try and solve them ahead of time?
Levenshtein Distance 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 Lydxn 🇨🇦 896 93 432ms 2 Aug 2023 241st GrayJoKing 🇦🇺 896 93 479ms 24 Jul 2025 243rd primo-ppcg 🇹🇭 896 123 89ms 10 Apr 2021 244th lynn 895 142 215ms 23 Mar 2021 244th xnor-gate 895 142 384ms 6 Apr 2021 246th JayXon 🇺🇸 895 203 510ms 25 Sep 2025 247th JayXon 🇺🇸 895 207 325ms 15 Jan 2025 248th sisyphus-ppcg 🇦🇺 894 101 515ms 28 Feb 2022 249th GolfingSuccess 🇬🇷 893 97 44ms 5 days ago 249th edsrzf 🇳🇿 893 97 44ms 5 days ago 251st fuzzylojik-golf 🇺🇸 892 88 419ms 8 Sep 2025 252nd edsrzf 🇳🇿 892 95 809ms 16 Feb 2026 252nd Steffan153 🇫🇮 892 95 844ms 16 Feb 2026 252nd sean-niemann 🇺🇸 892 95 891ms 20 Feb 2026 255th bitsandbeyond 🇳🇱 890 120 277ms 30 Mar 2025 256th nwellnhof 🇩🇪 890 184 60ms 3 Jan 2022 257th stefangimmillaro 890 200 123ms 3 Mar 2023 258th saito-ta 🇯🇵 889 105 86ms 20 May 2022 259th tomtheisen 🇺🇸 889 124 1,338ms 10 Nov 2020 260th JayXon 🇺🇸 888 143 704ms 1 Oct 2021 260th ovs-code 🇩🇪 888 143 1,120ms 6 Aug 2024 260th Natanaelel 🇸🇪 888 143 372ms 18 days ago 263rd IanUtley 888 164 24ms 10 Jan 2024 264th edsrzf 🇳🇿 887 159 48ms 12 Oct 2025 265th JayXon 🇺🇸 887 228 191ms 9 Jun 2025 265th acotis 887 228 205ms 14 days ago 267th Shanethegamer 🇺🇸 886 63 270ms 30 Nov 2024 268th nwellnhof 🇩🇪 886 205 601ms 25 Sep 2025 269th DialFrost 🇸🇬 885 102 514ms 10 Nov 2023 270th nwellnhof 🇩🇪 885 162 2ms 1 Oct 2021 270th m-tkach 🇺🇦 885 162 6ms 20 Jan 2022 272nd janbehrens 🇩🇪 884 77 1,481ms 30 Sep 2021 272nd Yewzir 🇧🇪 884 77 1,557ms 6 Feb 2024 272nd dokutan 884 77 1,390ms 26 Jul 2024 275th SirBogman 🇺🇸 883 61 4ms 16 Nov 2020 275th BBoehm 🇩🇪 883 61 4ms 26 Jan 2021 275th KrausRaus 🇺🇸 883 61 4ms 21 Apr 2021 275th JRaspass 🇬🇧 883 61 4ms 6 Jun 2021 275th nwellnhof 🇩🇪 883 61 4ms 18 Aug 2021 275th scpchicken 🇵🇼 883 61 4ms 17 Apr 2022 275th snoozingnewt 🇨🇦 883 61 5ms 8 Feb 2026 282nd MeWhenI 🇻🇦 882 56 130ms 13 Dec 2022 282nd snoozingnewt 🇨🇦 882 56 138ms 21 Nov 2025 284th AlephSquirrel 882 89 410ms 31 Dec 2025 284th Natanaelel 🇸🇪 882 89 441ms 1 Jan 2026 284th Babafaba 882 89 481ms 1 Jan 2026 287th Argeento 🇵🇱 882 125 18ms 24 Nov 2020 287th rucin93 🇵🇱 882 125 16ms 8 Mar 2021 287th Steffan153 🇫🇮 882 125 17ms 2 Mar 2023 287th sean-niemann 🇺🇸 882 125 345ms 3 Aug 2024 291st yzhs 🇩🇪 882 144 169ms 24 Jul 2021 291st Steffan153 🇫🇮 882 144 176ms 28 Feb 2024 293rd nwellnhof 🇩🇪 882 210 356ms 24 Aug 2023 294th JayXon 🇺🇸 881 122 166ms 31 Oct 2024 295th ovs-code 🇩🇪 880 186 3,940ms 10 Jul 2024 296th m42km 879 99 33ms 27 Jan 2024 297th Steffan153 🇫🇮 879 104 324ms 4 Mar 2024 298th sean-niemann 🇺🇸 877 95 435ms 9 Jan 2025 298th GolfingSuccess 🇬🇷 877 95 448ms 19 Feb 2025 298th m-tkach 🇺🇦 877 95 404ms 27 Jun 2025 298th janAkali 🇷🇺 877 95 440ms 2 Nov 2025 298th pardouin 🇫🇷 877 95 443ms 10 Feb 2026 303rd edsrzf 🇳🇿 877 146 809ms 4 Oct 2025 304th annaproxy 876 145 167ms 15 Jun 2023 304th the-zammers 876 145 229ms 12 Jan 2024 306th Irratix 🇳🇱 875 126 25ms 21 Apr 2021 306th KingSkyrock 🇺🇸 875 126 52ms 15 Oct 2024 306th voytxt 🇨🇿 875 126 20ms 2 Feb 2025 309th rucin93 🇵🇱 874 123 173ms 31 Oct 2024 309th sean-niemann 🇺🇸 874 123 191ms 31 Oct 2024 309th Steffan153 🇫🇮 874 123 181ms 25 days ago 312th JayXon 🇺🇸 873 146 3,387ms 19 Jan 2025 313th CaedenHarper 🇨🇦 872 90 426ms 1 Jan 2026 313th ndren 872 90 492ms 3 Jan 2026 315th m-tkach 🇺🇦 871 147 2,043ms 19 Jan 2024 316th kg583 🇺🇸 871 192 1,125ms 14 Feb 2026 317th SirBogman 🇺🇸 870 146 161ms 6 Nov 2021 317th edsrzf 🇳🇿 870 146 185ms 22 Dec 2025 319th primo-ppcg 🇹🇭 868 96 443ms 1 Aug 2023 320th GrayJoKing 🇦🇺 868 127 17ms 10 Nov 2020 First Prev 241–320 of 1,188 Next Last