Gray Code Decoder in all languages in chars. 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 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 ArkScript 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 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 ArkScript 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 Chars Time Submitted 154th MeWhenI 🇻🇦 0 76 588ms 8 hours ago 162nd Shanethegamer 🇺🇸 0 77 19ms 13 Dec 2024 162nd DialFrost 🇸🇬 0 77 19ms 8 May 2025 162nd edsrzf 🇳🇿 0 77 1,938ms 9 May 2025 162nd Natanaelel 🇸🇪 0 77 3ms 11 May 2025 162nd addmai 0 77 20ms 24 Jul 2025 162nd hiichbindermax 0 77 19ms 17 Aug 2025 162nd 5cw 🇺🇸 0 77 18ms 22 Aug 2025 162nd davecame 0 77 150ms 25 Sep 2025 162nd SirBogman 🇺🇸 0 77 240ms 13 Oct 2025 162nd jtaxen 0 77 19ms 16 Oct 2025 162nd albanian-laundromat 0 77 412ms 6 Dec 2025 162nd Matter1024 🇮🇳 0 77 17ms 12 Feb 2026 162nd KasperKivimaeki 🇫🇮 0 77 564ms 10 hours ago 175th jameswmccarty 0 78 20ms 29 Mar 2025 175th DialFrost 🇸🇬 0 78 1,013ms 10 May 2025 175th DialFrost 🇸🇬 0 78 3ms 10 May 2025 175th solisolu 0 78 20ms 10 Nov 2025 179th KasperKivimaeki 🇫🇮 0 79 3ms 1 Nov 2025 180th Shanethegamer 🇺🇸 0 80 5ms 3 Jun 2025 180th error256 0 80 466ms 16 Jan 2026 182nd Shanethegamer 🇺🇸 0 81 348ms 3 Jun 2025 182nd albanian-laundromat 0 81 9ms 16 Feb 2026 184th bricknellj 0 82 17ms 30 Jan 2025 185th GolfingSuccess 🇬🇷 0 83 114ms 12 Jan 2026 185th GolfingSuccess 🇬🇷 0 83 386ms 12 Jan 2026 185th error256 0 83 430ms 12 Jan 2026 185th albanian-laundromat 0 83 9ms 26 Jan 2026 189th Shanethegamer 🇺🇸 0 85 6ms 13 Dec 2024 189th edsrzf 🇳🇿 0 85 1,065ms 25 May 2025 189th albanian-laundromat 0 85 92ms 6 Dec 2025 189th GolfingSuccess 🇬🇷 0 85 25ms 14 Jan 2026 193rd kg583 🇺🇸 0 86 23ms 2 Oct 2025 193rd GolfingSuccess 🇬🇷 0 86 2,067ms 7 days ago 195th sean-niemann 🇺🇸 0 87 42ms 9 May 2025 195th error256 0 87 3,061ms 14 Jan 2026 195th IanUtley 0 87 3,106ms 16 Jan 2026 198th edsrzf 🇳🇿 0 88 2,094ms 15 May 2025 198th muser-logiccpu 🇺🇦 0 88 72ms 2 Sep 2025 198th solisolu 0 88 3ms 11 Nov 2025 198th albanian-laundromat 0 88 1,607ms 5 Jan 2026 202nd Shanethegamer 🇺🇸 0 89 99ms 13 Dec 2024 202nd GolfingSuccess 🇬🇷 0 89 65ms 12 Jan 2026 204th sean-niemann 🇺🇸 0 90 7ms 10 May 2025 205th ovs-code 🇩🇪 0 91 261ms 13 Dec 2025 205th error256 0 91 57ms 12 Jan 2026 205th error256 0 91 293ms 14 Jan 2026 205th GolfingSuccess 🇬🇷 0 91 272ms 14 Jan 2026 209th Shanethegamer 🇺🇸 0 92 462ms 20 May 2025 210th Shanethegamer 🇺🇸 0 94 383ms 13 Dec 2024 210th edsrzf 🇳🇿 0 94 459ms 20 May 2025 212th albanian-laundromat 0 95 114ms 6 Jan 2026 213th Natanaelel 🇸🇪 0 96 266ms 8 May 2025 213th stefangimmillaro 0 96 20ms 10 May 2025 213th Shanethegamer 🇺🇸 0 96 437ms 3 Jun 2025 213th albanian-laundromat 0 96 5ms 6 Dec 2025 213th MeWhenI 🇻🇦 0 96 399ms 8 hours ago 218th edsrzf 🇳🇿 0 97 512ms 24 Sep 2025 218th albanian-laundromat 0 97 48ms 6 Dec 2025 220th kumavale 0 98 155ms 26 Nov 2025 220th error256 0 98 156ms 16 Jan 2026 220th albanian-laundromat 0 98 135ms 20 days ago 223rd edsrzf 🇳🇿 0 99 468ms 9 May 2025 223rd Shanethegamer 🇺🇸 0 99 352ms 24 Sep 2025 225th edsrzf 🇳🇿 0 100 145ms 9 May 2025 225th edsrzf 🇳🇿 0 100 307ms 9 May 2025 225th edsrzf 🇳🇿 0 100 16ms 9 May 2025 225th emgordon154 0 100 7ms 9 May 2025 225th JOrE20 0 100 42ms 15 Dec 2025 230th rucin93 🇵🇱 0 101 373ms 11 days ago 231st edsrzf 🇳🇿 0 102 440ms 16 Jun 2025 231st fantaize 0 102 148ms 5 days ago 233rd CLOStrophobic 🇮🇹 0 104 21ms 18 Jan 2025 234th kg583 🇺🇸 0 106 38ms 9 May 2025 235th Shanethegamer 🇺🇸 0 107 8ms 9 May 2025 235th AlephSquirrel 0 107 20ms 14 May 2025 237th CLOStrophobic 🇮🇹 0 108 47ms 17 Feb 2025 237th edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 237th albanian-laundromat 0 108 31ms 5 Jan 2026 237th albanian-laundromat 0 108 83ms 6 days ago First Prev 161–240 of 260 Next Last