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 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 Continued Fractions 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 ><> 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 ALGOL 68 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 ><> 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 ALGOL 68 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 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 Continued Fractions 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 80th XenThe 🇬🇧 0 62 12ms 15 Jul 2025 80th sean-niemann 🇺🇸 0 62 465ms 26 days ago 83rd kg583 🇺🇸 0 63 908ms 1 Dec 2024 83rd hallvabo 🇳🇴 0 63 150ms 30 Dec 2024 83rd pardouin 🇫🇷 0 63 237ms 24 Feb 2025 83rd Shanethegamer 🇺🇸 0 63 171ms 7 May 2025 83rd sean-niemann 🇺🇸 0 63 6ms 9 May 2025 83rd rucin93 🇵🇱 0 63 7ms 10 May 2025 83rd edsrzf 🇳🇿 0 63 6ms 10 May 2025 83rd targrik 0 63 7ms 8 Oct 2025 83rd albanian-laundromat 0 63 12ms 7 Dec 2025 83rd GolfingSuccess 🇬🇷 0 63 7ms 12 Jan 2026 93rd CornerMercury 🇬🇧 0 64 22ms 3 Dec 2024 93rd ndren 0 64 19ms 3 Dec 2024 93rd lifthrasiir 🇰🇷 0 64 182ms 11 Dec 2024 93rd emgordon154 0 64 23ms 9 May 2025 93rd error256 0 64 4,441ms 27 days ago 93rd anter69 🇭🇺 0 64 19ms 6 days ago 99th Shanethegamer 🇺🇸 0 65 257ms 13 Dec 2024 99th albanian-laundromat 0 65 42ms 6 Dec 2025 99th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 102nd dokutan 0 66 489ms 18 Aug 2025 102nd dokutan 0 66 20ms 18 Aug 2025 102nd Yax42 🇫🇷 0 66 398ms 6 Jan 2026 102nd AdrienHache 🇫🇷 0 66 426ms 6 Jan 2026 102nd GolfingSuccess 🇬🇷 0 66 10ms 12 Jan 2026 102nd JOrE20 🇺🇸 0 66 32ms 31 mins ago 108th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 108th Shanethegamer 🇺🇸 0 67 436ms 7 May 2025 108th namelessiw 0 67 441ms 2 Nov 2025 108th error256 0 67 176ms 12 days ago 112th 4atj 0 69 1,159ms 21 May 2025 112th albanian-laundromat 0 69 489ms 6 Dec 2025 112th GolfingSuccess 🇬🇷 0 69 394ms 27 days ago 115th btnlq 0 70 193ms 4 Dec 2024 115th kg583 🇺🇸 0 70 120ms 3 Oct 2025 115th error256 0 70 140ms 27 days ago 118th GolfingSuccess 🇬🇷 0 71 4ms 12 Jan 2026 118th GolfingSuccess 🇬🇷 0 71 28ms 12 Jan 2026 118th GolfingSuccess 🇬🇷 0 71 18ms 27 days ago 121st edsrzf 🇳🇿 0 72 546ms 9 May 2025 121st kg583 🇺🇸 0 72 19ms 2 Oct 2025 121st error256 0 72 21ms 12 Jan 2026 124th IISResetMe 0 73 256ms 10 Jan 2026 125th rhdqor213 0 74 3ms 11 May 2025 125th saito-ta 🇯🇵 0 74 3ms 11 May 2025 125th error256 0 74 3ms 12 Jan 2026 125th dokutan 0 74 76ms 3 days ago 129th ovs-code 🇩🇪 0 75 19ms 23 Feb 2025 129th Shanethegamer 🇺🇸 0 75 71ms 7 May 2025 129th edsrzf 🇳🇿 0 75 708ms 9 May 2025 129th Natanaelel 🇸🇪 0 75 20ms 11 May 2025 129th Seek64 🇩🇪 0 75 131ms 3 Jun 2025 129th commandz0 🇺🇸 0 75 1,210ms 27 Aug 2025 129th albanian-laundromat 0 75 124ms 5 Jan 2026 129th albanian-laundromat 0 75 400ms 6 Jan 2026 129th GolfingSuccess 🇬🇷 0 75 20ms 11 Jan 2026 138th Shanethegamer 🇺🇸 0 76 144ms 13 Dec 2024 138th edsrzf 🇳🇿 0 76 121ms 10 May 2025 138th ovs-code 🇩🇪 0 76 3ms 10 May 2025 138th AlephSquirrel 0 76 45ms 3 Dec 2025 138th AlephSquirrel 0 76 491ms 3 Dec 2025 143rd Shanethegamer 🇺🇸 0 77 19ms 13 Dec 2024 143rd DialFrost 🇸🇬 0 77 19ms 8 May 2025 143rd edsrzf 🇳🇿 0 77 1,938ms 9 May 2025 143rd Natanaelel 🇸🇪 0 77 3ms 11 May 2025 143rd lukegustafson 🇺🇸 0 77 18ms 16 Jun 2025 143rd addmai 0 77 20ms 24 Jul 2025 143rd hiichbindermax 0 77 21ms 17 Aug 2025 143rd 5cw 🇺🇸 0 77 18ms 22 Aug 2025 143rd davecame 0 77 150ms 25 Sep 2025 143rd SirBogman 🇺🇸 0 77 240ms 13 Oct 2025 143rd jtaxen 0 77 19ms 16 Oct 2025 143rd albanian-laundromat 0 77 19ms 25 Nov 2025 143rd albanian-laundromat 0 77 366ms 6 Dec 2025 156th jameswmccarty 0 78 20ms 29 Mar 2025 156th DialFrost 🇸🇬 0 78 939ms 10 May 2025 156th DialFrost 🇸🇬 0 78 3ms 10 May 2025 156th solisolu 0 78 20ms 10 Nov 2025 160th KasperKivimaeki 🇫🇮 0 79 3ms 1 Nov 2025 First Prev 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