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 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 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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 156th addmai 0 77 20ms 24 Jul 2025 156th hiichbindermax 0 77 19ms 17 Aug 2025 156th 5cw 🇺🇸 0 77 18ms 22 Aug 2025 156th davecame 0 77 150ms 25 Sep 2025 156th SirBogman 🇺🇸 0 77 240ms 13 Oct 2025 156th jtaxen 0 77 19ms 16 Oct 2025 156th albanian-laundromat 0 77 412ms 6 Dec 2025 156th Matter1024 🇮🇳 0 77 17ms 19 days ago 169th jameswmccarty 0 78 20ms 29 Mar 2025 169th DialFrost 🇸🇬 0 78 939ms 10 May 2025 169th DialFrost 🇸🇬 0 78 3ms 10 May 2025 169th solisolu 0 78 20ms 10 Nov 2025 173rd KasperKivimaeki 🇫🇮 0 79 3ms 1 Nov 2025 174th Shanethegamer 🇺🇸 0 80 5ms 3 Jun 2025 174th error256 0 80 466ms 16 Jan 2026 176th Shanethegamer 🇺🇸 0 81 291ms 3 Jun 2025 176th albanian-laundromat 0 81 9ms 15 days ago 178th bricknellj 0 82 17ms 30 Jan 2025 178th aksyristos 0 82 17ms 13 Jan 2026 180th GolfingSuccess 🇬🇷 0 83 111ms 12 Jan 2026 180th GolfingSuccess 🇬🇷 0 83 386ms 12 Jan 2026 180th error256 0 83 430ms 12 Jan 2026 180th albanian-laundromat 0 83 9ms 26 Jan 2026 184th albanian-laundromat 0 84 135ms 15 days ago 185th Shanethegamer 🇺🇸 0 85 11ms 13 Dec 2024 185th edsrzf 🇳🇿 0 85 973ms 25 May 2025 185th albanian-laundromat 0 85 92ms 6 Dec 2025 185th GolfingSuccess 🇬🇷 0 85 25ms 14 Jan 2026 189th kg583 🇺🇸 0 86 23ms 2 Oct 2025 190th sean-niemann 🇺🇸 0 87 42ms 9 May 2025 190th error256 0 87 3,061ms 14 Jan 2026 190th IanUtley 0 87 3,106ms 16 Jan 2026 193rd edsrzf 🇳🇿 0 88 2,069ms 15 May 2025 193rd muser-logiccpu 🇺🇦 0 88 72ms 2 Sep 2025 193rd solisolu 0 88 3ms 11 Nov 2025 193rd albanian-laundromat 0 88 1,304ms 5 Jan 2026 193rd GolfingSuccess 🇬🇷 0 88 1,013ms 14 Jan 2026 198th Shanethegamer 🇺🇸 0 89 106ms 13 Dec 2024 198th GolfingSuccess 🇬🇷 0 89 57ms 12 Jan 2026 200th sean-niemann 🇺🇸 0 90 6ms 10 May 2025 200th rucin93 🇵🇱 0 90 7ms 10 May 2025 202nd ovs-code 🇩🇪 0 91 261ms 13 Dec 2025 202nd error256 0 91 55ms 12 Jan 2026 202nd error256 0 91 293ms 14 Jan 2026 202nd GolfingSuccess 🇬🇷 0 91 272ms 14 Jan 2026 206th Shanethegamer 🇺🇸 0 92 462ms 20 May 2025 207th Shanethegamer 🇺🇸 0 94 414ms 13 Dec 2024 207th edsrzf 🇳🇿 0 94 459ms 20 May 2025 209th albanian-laundromat 0 95 119ms 6 Jan 2026 210th Natanaelel 🇸🇪 0 96 266ms 8 May 2025 210th stefangimmillaro 0 96 20ms 10 May 2025 210th Shanethegamer 🇺🇸 0 96 437ms 3 Jun 2025 210th albanian-laundromat 0 96 5ms 6 Dec 2025 214th edsrzf 🇳🇿 0 97 512ms 24 Sep 2025 214th albanian-laundromat 0 97 44ms 6 Dec 2025 216th kumavale 0 98 146ms 26 Nov 2025 216th error256 0 98 151ms 16 Jan 2026 216th albanian-laundromat 0 98 120ms 8 days ago 219th edsrzf 🇳🇿 0 99 481ms 9 May 2025 219th Shanethegamer 🇺🇸 0 99 352ms 24 Sep 2025 221st edsrzf 🇳🇿 0 100 145ms 9 May 2025 221st edsrzf 🇳🇿 0 100 307ms 9 May 2025 221st edsrzf 🇳🇿 0 100 16ms 9 May 2025 221st emgordon154 0 100 7ms 9 May 2025 221st JOrE20 0 100 42ms 15 Dec 2025 226th edsrzf 🇳🇿 0 102 440ms 16 Jun 2025 227th CLOStrophobic 🇮🇹 0 104 21ms 18 Jan 2025 228th kg583 🇺🇸 0 106 38ms 9 May 2025 229th Shanethegamer 🇺🇸 0 107 8ms 9 May 2025 229th AlephSquirrel 0 107 20ms 14 May 2025 231st CLOStrophobic 🇮🇹 0 108 47ms 17 Feb 2025 231st edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 231st albanian-laundromat 0 108 31ms 5 Jan 2026 234th kg583 🇺🇸 0 109 41ms 16 hours ago 234th GolfingSuccess 🇬🇷 0 109 41ms 2 hours ago 236th GolfingSuccess 🇬🇷 0 112 44ms 24 Jan 2026 237th Shanethegamer 🇺🇸 0 114 1,370ms 9 May 2025 237th edsrzf 🇳🇿 0 114 697ms 9 May 2025 237th error256 0 114 480ms 29 Jan 2026 240th GolfingSuccess 🇬🇷 0 117 298ms 12 Jan 2026 First Prev 161–240 of 256 Next Last