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 tomh1012 601 97 378ms 19 days ago 482nd janAkali 🇷🇺 600 99 401ms 11 days ago 483rd albanian-laundromat 🇺🇸 598 98 135ms 23 Feb 2026 484th dokutan 596 54 39ms 46 hours ago 485th michelebastione 🇮🇹 595 98 443ms 13 days ago 486th Shanethegamer 🇺🇸 593 121 166ms 13 Dec 2024 487th Solathian 591 46 77ms 17 days ago 488th madex 🇩🇪 590 119 1,267ms 15 days ago 489th flekAI 585 55 43ms 3 hours ago 490th dokutan 581 72 209ms 47 hours ago 491st madex 🇩🇪 568 129 366ms 16 days ago 492nd Mikey-Beep 🇬🇧 567 99 25ms 4 days ago 493rd scpchicken 🇵🇼 566 48 10ms 18 hours ago 494th prestosilver 🇺🇸 566 105 381ms 11 days ago 495th JOrE20 562 100 46ms 15 Dec 2025 496th albanian-laundromat 🇺🇸 557 75 299ms 2 Mar 2026 497th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 498th dokutan 538 75 777ms 46 hours ago 499th JDiLenarda 🇫🇷 536 131 1,330ms 18 days ago 500th Shanethegamer 🇺🇸 521 50 4,001ms 8 May 2025 501st Arkadios200 520 146 2,407ms 3 days ago 502nd madex 🇩🇪 514 100 111ms 15 days ago 503rd dokutan 513 191 293ms 47 hours ago 504th madex 🇩🇪 492 53 475ms 16 days ago 505th HumanoidCPU 486 120 401ms 13 days ago 506th madex 🇩🇪 471 170 33ms 15 days ago 507th flekAI 460 59 5ms 3 hours ago 508th Shanethegamer 🇺🇸 458 85 6ms 13 Dec 2024 509th Shanethegamer 🇺🇸 450 107 8ms 9 May 2025 510th AstroOrbis 446 126 32ms 12 Aug 2025 511th Msleizak 🇫🇷 427 84 302ms 13 days ago 512th kasarino 420 170 48ms 8 hours ago 513th madex 🇩🇪 418 78 91ms 15 days ago 514th dokutan 412 163 477ms 47 hours ago 515th dokutan 383 152 407ms 47 hours ago 516th muser-logiccpu 🇺🇦 370 88 70ms 2 Sep 2025 517th Ripick 300 198 381ms 4 days ago 518th dokutan 224 253 5ms 47 hours ago 519th dokutan 205 371 67ms 47 hours ago 520th dokutan 170 371 4ms 47 hours ago 521st dokutan 152 395 21ms 47 hours ago 522nd darrenks 🇺🇸 0 6 50ms 19 days ago 522nd 2bular 0 6 45ms 19 days ago 522nd Natanaelel 🇸🇪 0 6 48ms 19 days ago 522nd plcc0 0 6 48ms 18 days ago 526th kg583 🇺🇸 0 9 921ms 14 May 2025 526th themoonisacheese 0 9 2,448ms 11 days ago 528th namelessiw 0 13 335ms 25 Oct 2025 529th AlephSquirrel 0 20 8ms 3 Dec 2025 529th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 531st AlephSquirrel 0 27 5ms 3 Dec 2025 531st ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 533rd ovs-code 🇩🇪 0 29 123ms 3 Dec 2025 534th Shanethegamer 🇺🇸 0 32 35ms 19 May 2025 535th KatieLG 🇬🇧 0 43 61ms 14 days ago 536th madex 🇩🇪 0 59 1,081ms 16 days ago 537th GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 538th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 539th GolfingSuccess 🇬🇷 0 71 23ms 12 Jan 2026 539th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 541st dokutan 0 74 81ms 8 Feb 2026 542nd Matter1024 🇮🇳 0 101 60ms 15 hours ago 543rd edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 544th btjones0 0 126 168ms 18 days ago 545th edsrzf 🇳🇿 0 136 4,774ms 19 May 2025 First Prev 481–545 of 545