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 81st Andrey-Plotnikov 0 62 28ms 12 Jan 2025 81st XenThe 🇬🇧 0 62 13ms 15 Jul 2025 81st sean-niemann 🇺🇸 0 62 465ms 15 Jan 2026 84th kg583 🇺🇸 0 63 908ms 1 Dec 2024 84th hallvabo 🇳🇴 0 63 150ms 30 Dec 2024 84th pardouin 🇫🇷 0 63 237ms 24 Feb 2025 84th Shanethegamer 🇺🇸 0 63 171ms 7 May 2025 84th sean-niemann 🇺🇸 0 63 7ms 9 May 2025 84th rucin93 🇵🇱 0 63 7ms 10 May 2025 84th edsrzf 🇳🇿 0 63 6ms 10 May 2025 84th targrik 0 63 7ms 8 Oct 2025 84th albanian-laundromat 0 63 12ms 7 Dec 2025 84th GolfingSuccess 🇬🇷 0 63 7ms 12 Jan 2026 94th CornerMercury 🇬🇧 0 64 22ms 3 Dec 2024 94th ndren 0 64 19ms 3 Dec 2024 94th lifthrasiir 🇰🇷 0 64 182ms 11 Dec 2024 94th emgordon154 0 64 23ms 9 May 2025 94th error256 0 64 4,551ms 15 Jan 2026 94th anter69 🇭🇺 0 64 19ms 9 days ago 100th Shanethegamer 🇺🇸 0 65 257ms 13 Dec 2024 100th albanian-laundromat 0 65 36ms 6 Dec 2025 100th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 103rd dokutan 0 66 489ms 18 Aug 2025 103rd dokutan 0 66 20ms 18 Aug 2025 103rd Yax42 🇫🇷 0 66 398ms 6 Jan 2026 103rd AdrienHache 🇫🇷 0 66 426ms 6 Jan 2026 103rd GolfingSuccess 🇬🇷 0 66 10ms 12 Jan 2026 103rd JOrE20 🇺🇸 0 66 32ms 2 days ago 109th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 109th Shanethegamer 🇺🇸 0 67 436ms 7 May 2025 109th namelessiw 0 67 441ms 2 Nov 2025 109th error256 0 67 167ms 15 days ago 113th 4atj 0 69 1,159ms 21 May 2025 113th albanian-laundromat 0 69 489ms 6 Dec 2025 113th GolfingSuccess 🇬🇷 0 69 394ms 14 Jan 2026 116th btnlq 0 70 193ms 4 Dec 2024 116th kg583 🇺🇸 0 70 120ms 3 Oct 2025 116th error256 0 70 140ms 15 Jan 2026 119th GolfingSuccess 🇬🇷 0 71 4ms 12 Jan 2026 119th GolfingSuccess 🇬🇷 0 71 27ms 12 Jan 2026 119th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 122nd edsrzf 🇳🇿 0 72 546ms 9 May 2025 122nd kg583 🇺🇸 0 72 19ms 2 Oct 2025 122nd error256 0 72 21ms 12 Jan 2026 125th IISResetMe 0 73 256ms 10 Jan 2026 126th rhdqor213 0 74 3ms 11 May 2025 126th saito-ta 🇯🇵 0 74 3ms 11 May 2025 126th error256 0 74 3ms 12 Jan 2026 126th dokutan 0 74 65ms 5 days ago 130th ovs-code 🇩🇪 0 75 19ms 23 Feb 2025 130th Shanethegamer 🇺🇸 0 75 71ms 7 May 2025 130th edsrzf 🇳🇿 0 75 708ms 9 May 2025 130th Natanaelel 🇸🇪 0 75 20ms 11 May 2025 130th Seek64 🇩🇪 0 75 131ms 3 Jun 2025 130th commandz0 🇺🇸 0 75 1,210ms 27 Aug 2025 130th albanian-laundromat 0 75 124ms 5 Jan 2026 130th albanian-laundromat 0 75 400ms 6 Jan 2026 130th GolfingSuccess 🇬🇷 0 75 20ms 11 Jan 2026 139th Shanethegamer 🇺🇸 0 76 144ms 13 Dec 2024 139th edsrzf 🇳🇿 0 76 121ms 10 May 2025 139th ovs-code 🇩🇪 0 76 3ms 10 May 2025 139th AlephSquirrel 0 76 45ms 3 Dec 2025 139th AlephSquirrel 0 76 491ms 3 Dec 2025 144th Shanethegamer 🇺🇸 0 77 19ms 13 Dec 2024 144th DialFrost 🇸🇬 0 77 19ms 8 May 2025 144th edsrzf 🇳🇿 0 77 1,938ms 9 May 2025 144th Natanaelel 🇸🇪 0 77 3ms 11 May 2025 144th lukegustafson 🇺🇸 0 77 18ms 16 Jun 2025 144th addmai 0 77 20ms 24 Jul 2025 144th hiichbindermax 0 77 21ms 17 Aug 2025 144th 5cw 🇺🇸 0 77 18ms 22 Aug 2025 144th davecame 0 77 150ms 25 Sep 2025 144th SirBogman 🇺🇸 0 77 240ms 13 Oct 2025 144th jtaxen 0 77 19ms 16 Oct 2025 144th albanian-laundromat 0 77 19ms 25 Nov 2025 144th albanian-laundromat 0 77 366ms 6 Dec 2025 144th Matter1024 🇮🇳 0 77 17ms 40 hours ago 158th jameswmccarty 0 78 20ms 29 Mar 2025 158th DialFrost 🇸🇬 0 78 939ms 10 May 2025 158th DialFrost 🇸🇬 0 78 3ms 10 May 2025 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