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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 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 481st Solathian 587 46 77ms 15 days ago 482nd dokutan 581 72 231ms 12 mins ago 483rd madex 🇩🇪 568 129 366ms 14 days ago 484th Mikey-Beep 🇬🇧 567 99 25ms 2 days ago 485th prestosilver 🇺🇸 566 105 381ms 9 days ago 486th JOrE20 561 100 46ms 15 Dec 2025 487th albanian-laundromat 🇺🇸 557 75 238ms 2 Mar 2026 488th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 489th dokutan 538 75 777ms 11 mins ago 490th JDiLenarda 🇫🇷 536 131 1,330ms 16 days ago 491st Shanethegamer 🇺🇸 521 50 4,001ms 8 May 2025 492nd Arkadios200 520 146 2,407ms 29 hours ago 493rd madex 🇩🇪 514 100 111ms 13 days ago 494th dokutan 513 191 293ms 32 mins ago 495th madex 🇩🇪 492 53 475ms 14 days ago 496th HumanoidCPU 486 120 401ms 11 days ago 497th madex 🇩🇪 471 170 33ms 13 days ago 498th Shanethegamer 🇺🇸 458 85 6ms 13 Dec 2024 499th Shanethegamer 🇺🇸 450 107 8ms 9 May 2025 500th AstroOrbis 445 126 32ms 12 Aug 2025 501st Msleizak 🇫🇷 427 84 302ms 11 days ago 502nd madex 🇩🇪 418 78 91ms 13 days ago 503rd dokutan 412 163 477ms 34 mins ago 504th dokutan 383 152 407ms 33 mins ago 505th muser-logiccpu 🇺🇦 370 88 70ms 2 Sep 2025 506th Ripick 300 198 381ms 2 days ago 507th dokutan 224 253 5ms 31 mins ago 508th dokutan 205 371 67ms 30 mins ago 509th dokutan 169 371 4ms 30 mins ago 510th dokutan 152 395 21ms 29 mins ago 511th darrenks 🇺🇸 0 6 50ms 17 days ago 511th 2bular 0 6 45ms 17 days ago 511th Natanaelel 🇸🇪 0 6 48ms 17 days ago 511th plcc0 0 6 48ms 16 days ago 515th kg583 🇺🇸 0 9 921ms 14 May 2025 515th themoonisacheese 0 9 2,448ms 9 days ago 517th namelessiw 0 13 335ms 25 Oct 2025 518th AlephSquirrel 0 20 8ms 3 Dec 2025 518th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 520th AlephSquirrel 0 27 5ms 3 Dec 2025 520th ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 522nd ovs-code 🇩🇪 0 29 123ms 3 Dec 2025 523rd Shanethegamer 🇺🇸 0 32 35ms 19 May 2025 524th KatieLG 🇬🇧 0 43 61ms 12 days ago 525th madex 🇩🇪 0 59 1,081ms 14 days ago 526th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 527th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 528th GolfingSuccess 🇬🇷 0 71 25ms 12 Jan 2026 528th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 530th dokutan 0 74 81ms 8 Feb 2026 531st edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 532nd btjones0 0 126 168ms 16 days ago 533rd edsrzf 🇳🇿 0 136 4,774ms 19 May 2025 First 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