Gray Code Encoder 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 dokutan 798 53 431ms 15 Aug 2025 481st MeWhenI 🇻🇦 798 53 458ms 21 Nov 2025 481st albanian-laundromat 🇺🇸 798 53 514ms 15 Jan 2026 481st AlephSquirrel 798 53 511ms 21 days ago 481st snoozingnewt 🇨🇦 798 53 456ms 9 days ago 486th JayXon 🇺🇸 798 160 1,649ms 6 days ago 487th albanian-laundromat 🇺🇸 795 130 30ms 12 days ago 488th madex 🇩🇪 793 83 103ms 15 days ago 489th albanian-laundromat 🇺🇸 791 214 120ms 16 days ago 490th Steffan153 🇫🇮 789 45 6ms 17 days ago 490th sean-niemann 🇺🇸 789 45 7ms 2 hours ago 492nd msbranicky 789 67 15ms 16 days ago 493rd emgordon154 788 162 1,799ms 17 days ago 494th dokutan 787 89 476ms 16 days ago 495th albanian-laundromat 🇺🇸 786 64 188ms 22 days ago 496th UnderKoen 🇳🇱 785 91 2,148ms 12 days ago 497th HumanoidCPU 785 115 324ms 17 days ago 498th Yax42 🇫🇷 783 89 13ms 16 days ago 498th DialFrost 🇸🇬 783 89 12ms 14 days ago 498th solisolu 783 89 4ms 8 days ago 501st saito-ta 🇯🇵 783 128 1,990ms 8 May 2025 502nd canissimia 🇦🇶 780 143 15ms 18 days ago 503rd dokutan 778 99 409ms 18 days ago 504th flekAI 775 53 12ms 6 hours ago 505th flekAI 774 33 4ms 6 hours ago 506th Pyroan 773 22 92ms 18 days ago 507th madex 🇩🇪 772 46 5ms 5 days ago 508th dokutan 770 58 183ms 18 days ago 509th JOrE20 769 70 41ms 13 Feb 2026 510th GolfingSuccess 🇬🇷 769 135 80ms 16 days ago 511th albanian-laundromat 🇺🇸 767 243 15ms 21 days ago 512th HumanoidCPU 766 48 1,424ms 18 days ago 513th HumanoidCPU 763 101 382ms 17 days ago 514th JOrE20 758 37 252ms 9 Dec 2025 515th madex 🇩🇪 758 92 12ms 19 days ago 516th madex 🇩🇪 753 79 117ms 15 days ago 517th HumanoidCPU 751 52 9ms 13 days ago 518th aadenboy 🇺🇸 751 87 7ms 13 days ago 519th CaedenHarper 🇨🇦 750 93 12ms 22 days ago 520th HumanoidCPU 747 96 163ms 19 days ago 521st GolfingSuccess 🇬🇷 740 48 5ms 16 days ago 522nd retrohun 731 55 375ms 6 days ago 523rd Steffan153 🇫🇮 730 88 339ms 12 days ago 523rd edsrzf 🇳🇿 730 88 352ms 12 days ago 525th madex 🇩🇪 723 54 11ms 16 days ago 526th Shanethegamer 🇺🇸 722 89 341ms 6 May 2025 527th DialFrost 🇸🇬 718 56 2,639ms 16 Dec 2025 528th DialFrost 🇸🇬 717 88 101ms 14 days ago 529th ovs-code 🇩🇪 715 237 107ms 18 days ago 530th flekAI 710 101 170ms 2 hours ago 531st JOrE20 708 24 91ms 13 Feb 2026 532nd Shanethegamer 🇺🇸 705 84 416ms 26 Nov 2024 532nd dokutan 705 84 382ms 16 days ago 534th dokutan 704 99 12ms 16 days ago 535th HumanoidCPU 697 85 427ms 17 days ago 536th Shanethegamer 🇺🇸 696 51 4ms 30 Apr 2025 536th albanian-laundromat 🇺🇸 696 51 5ms 18 days ago 538th madex 🇩🇪 694 130 350ms 15 days ago 539th GolfingSuccess 🇬🇷 693 58 4,193ms 8 May 2025 540th GolfingSuccess 🇬🇷 688 73 16ms 8 May 2025 541st Jonson26 688 112 395ms 2 days ago 542nd KatieLG 🇬🇧 682 62 419ms 20 days ago 542nd madex 🇩🇪 682 62 448ms 16 days ago 542nd flekAI 682 62 393ms 7 hours ago 545th HumanoidCPU 674 97 7ms 16 days ago 546th madex 🇩🇪 673 104 210ms 16 days ago 547th HumanoidCPU 672 101 361ms 18 days ago 548th Shanethegamer 🇺🇸 667 98 7ms 6 May 2025 549th janAkali 🇷🇺 665 102 399ms 11 days ago 550th Natanaelel 🇸🇪 665 130 360ms 2 May 2025 551st flekAI 664 136 295ms 2 hours ago 552nd flekAI 662 59 7ms 6 hours ago 553rd plcc0 654 26 6ms 17 days ago 554th albanian-laundromat 🇺🇸 649 99 343ms 22 days ago 555th HumanoidCPU 645 108 13ms 16 days ago 556th dokutan 645 140 316ms 16 days ago 557th GolfingSuccess 🇬🇷 643 111 109ms 17 days ago 558th BREMAUCY 🇫🇷 639 40 4ms 10 days ago 559th Shanethegamer 🇺🇸 635 136 315ms 26 Nov 2024 560th Natanaelel 🇸🇪 630 27 6ms 8 May 2025 First Prev 481–560 of 659 Next Last