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 401st albanian-laundromat 🇺🇸 724 97 46ms 6 Dec 2025 402nd plcc0 722 18 9ms 13 days ago 403rd MeWhenI 🇻🇦 722 87 4ms 10 days ago 404th MeWhenI 🇻🇦 720 81 426ms 11 days ago 405th solisolu 719 78 41ms 10 Nov 2025 406th madex 🇩🇪 717 50 896ms 15 days ago 407th Matter1024 🇮🇳 717 83 163ms 6 days ago 408th edsrzf 🇳🇿 715 94 459ms 20 May 2025 409th Andriamanitra 🇫🇮 714 45 37ms 17 days ago 410th Jacob385 712 103 386ms 13 days ago 411th BREMAUCY 🇫🇷 710 79 19ms 18 days ago 411th mishak-sys 710 79 418ms 16 days ago 411th KatieLG 🇬🇧 710 79 18ms 10 days ago 411th ZakkkkAttackkkk 🇵🇭 710 79 45ms 4 days ago 415th Shanethegamer 🇺🇸 708 80 5ms 3 Jun 2025 416th elgan65536 🇺🇸 708 117 156ms 12 days ago 417th madex 🇩🇪 707 84 359ms 13 days ago 418th madex 🇩🇪 707 94 99ms 13 days ago 419th emgordon154 706 231 1,549ms 14 days ago 420th albanian-laundromat 🇺🇸 705 61 13ms 4 Mar 2026 421st Shanethegamer 🇺🇸 705 139 328ms 13 Dec 2024 422nd Matter1024 🇮🇳 699 46 38ms 18 days ago 423rd aadenboy 🇺🇸 699 81 5ms 12 days ago 424th Andrey-Plotnikov 694 62 39ms 12 Jan 2025 424th XenThe 🇬🇧 694 62 12ms 15 Jul 2025 424th JOrE20 694 62 31ms 27 Feb 2026 424th Protothor 694 62 13ms 14 days ago 424th madeforlosers 694 62 38ms 9 days ago 424th dokutan 694 62 24ms 17 hours ago 430th Aquateraneal 🇺🇸 693 81 22ms 15 days ago 430th luuumine 🇫🇷 693 81 17ms 15 days ago 432nd madex 🇩🇪 692 39 9ms 13 days ago 433rd albanian-laundromat 🇺🇸 690 95 114ms 6 Jan 2026 434th CLOStrophobic 🇮🇹 690 104 23ms 18 Jan 2025 435th dokutan 686 57 1,275ms 17 hours ago 436th albanian-laundromat 🇺🇸 685 75 119ms 5 Jan 2026 437th albanian-laundromat 🇺🇸 684 19 4ms 13 Feb 2026 438th KatieLG 🇬🇧 684 47 40ms 10 days ago 439th bricknellj 684 82 18ms 30 Jan 2025 439th cros107 🇦🇺 684 82 1,060ms 2 days ago 441st DialFrost 🇸🇬 679 48 54ms 16 Dec 2025 441st retrohun 679 48 2,663ms 4 days ago 443rd Arkadios200 678 98 111ms 46 hours ago 444th emgordon154 677 79 474ms 15 hours ago 445th Shanethegamer 🇺🇸 676 76 125ms 13 Dec 2024 446th msbranicky 676 83 18ms 14 days ago 447th Jonson26 673 109 350ms 28 hours ago 448th madex 🇩🇪 671 75 465ms 15 days ago 449th AlephSquirrel 671 107 23ms 14 May 2025 450th CaedenHarper 🇨🇦 670 87 380ms 17 days ago 451st Shanethegamer 🇺🇸 668 124 147ms 3 Jun 2025 452nd madex 🇩🇪 665 101 141ms 13 days ago 453rd KatieLG 🇬🇧 662 65 12ms 10 days ago 454th AlephSquirrel 662 76 427ms 3 Dec 2025 455th madex 🇩🇪 661 79 29ms 13 days ago 456th albanian-laundromat 🇺🇸 653 80 28ms 17 days ago 457th sean-niemann 🇺🇸 652 90 7ms 10 May 2025 458th madex 🇩🇪 649 121 8ms 13 days ago 459th Shanethegamer 🇺🇸 648 75 67ms 7 May 2025 460th Shanethegamer 🇺🇸 643 65 254ms 13 Dec 2024 461st Yax42 🇫🇷 633 68 13ms 18 days ago 462nd dokutan 632 74 160ms 17 hours ago 463rd madex 🇩🇪 628 87 14ms 15 days ago 464th GolfingSuccess 🇬🇷 626 137 91ms 16 days ago 465th HumanoidCPU 623 133 162ms 17 days ago 466th Shanethegamer 🇺🇸 620 94 371ms 13 Dec 2024 467th Shanethegamer 🇺🇸 619 96 427ms 3 Jun 2025 468th IISResetMe 618 58 308ms 15 days ago 469th UnderKoen 🇳🇱 617 139 1,195ms 17 days ago 470th Shanethegamer 🇺🇸 615 114 1,281ms 9 May 2025 471st KatieLG 🇬🇧 614 82 424ms 10 days ago 472nd brian124634 610 103 4ms 9 days ago 473rd madex 🇩🇪 608 99 19ms 13 days ago 474th kasarino 604 104 3ms 16 days ago 475th tomh1012 601 97 378ms 18 days ago 476th janAkali 🇷🇺 600 99 401ms 10 days ago 477th albanian-laundromat 🇺🇸 598 98 135ms 23 Feb 2026 478th dokutan 595 54 39ms 17 hours ago 479th michelebastione 🇮🇹 595 98 443ms 11 days ago 480th Shanethegamer 🇺🇸 593 121 166ms 13 Dec 2024 First Prev 401–480 of 534 Next Last