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 479th albanian-laundromat 🇺🇸 798 53 514ms 15 Jan 2026 479th AlephSquirrel 798 53 511ms 21 days ago 479th snoozingnewt 🇨🇦 798 53 456ms 9 days ago 484th Steffan153 🇫🇮 798 87 4ms 16 days ago 485th JayXon 🇺🇸 798 160 1,649ms 6 days ago 486th albanian-laundromat 🇺🇸 795 130 30ms 12 days ago 487th albanian-laundromat 🇺🇸 791 214 120ms 15 days ago 488th madex 🇩🇪 790 83 103ms 14 days ago 489th msbranicky 789 67 15ms 16 days ago 490th emgordon154 788 162 1,799ms 17 days ago 491st albanian-laundromat 🇺🇸 786 64 188ms 21 days ago 492nd Steffan153 🇫🇮 785 45 6ms 17 days ago 493rd UnderKoen 🇳🇱 785 91 2,148ms 12 days ago 494th dokutan 784 89 476ms 16 days ago 495th HumanoidCPU 783 115 324ms 17 days ago 496th saito-ta 🇯🇵 783 128 1,990ms 8 May 2025 497th Yax42 🇫🇷 780 89 13ms 16 days ago 497th DialFrost 🇸🇬 780 89 12ms 14 days ago 497th solisolu 780 89 4ms 7 days ago 500th canissimia 🇦🇶 780 143 15ms 18 days ago 501st dokutan 777 99 409ms 18 days ago 502nd flekAI 775 53 12ms 42 mins ago 503rd flekAI 774 33 4ms 34 mins ago 504th Pyroan 773 22 92ms 17 days ago 505th JOrE20 769 70 41ms 13 Feb 2026 506th GolfingSuccess 🇬🇷 769 135 80ms 16 days ago 507th madex 🇩🇪 768 46 5ms 5 days ago 508th dokutan 767 58 183ms 18 days ago 509th albanian-laundromat 🇺🇸 767 243 15ms 21 days ago 510th HumanoidCPU 765 48 1,424ms 18 days ago 511th HumanoidCPU 761 101 382ms 17 days ago 512th JOrE20 756 37 252ms 9 Dec 2025 513th madex 🇩🇪 755 92 12ms 18 days ago 514th HumanoidCPU 751 52 9ms 13 days ago 515th madex 🇩🇪 750 79 117ms 14 days ago 516th aadenboy 🇺🇸 748 87 7ms 13 days ago 517th CaedenHarper 🇨🇦 747 93 12ms 21 days ago 518th Jacob385 747 103 360ms 15 days ago 519th HumanoidCPU 745 96 163ms 18 days ago 520th GolfingSuccess 🇬🇷 736 48 5ms 16 days ago 521st retrohun 728 55 375ms 5 days ago 522nd Steffan153 🇫🇮 726 88 339ms 12 days ago 522nd edsrzf 🇳🇿 726 88 352ms 12 days ago 524th madex 🇩🇪 723 54 11ms 16 days ago 525th Shanethegamer 🇺🇸 718 89 341ms 6 May 2025 526th DialFrost 🇸🇬 715 56 2,639ms 16 Dec 2025 527th ovs-code 🇩🇪 715 237 107ms 17 days ago 528th DialFrost 🇸🇬 711 88 101ms 14 days ago 529th JOrE20 708 24 91ms 13 Feb 2026 530th Shanethegamer 🇺🇸 704 84 416ms 26 Nov 2024 530th dokutan 704 84 382ms 16 days ago 532nd dokutan 701 99 12ms 16 days ago 533rd HumanoidCPU 696 85 427ms 17 days ago 534th Shanethegamer 🇺🇸 693 51 4ms 30 Apr 2025 534th albanian-laundromat 🇺🇸 693 51 5ms 18 days ago 536th madex 🇩🇪 693 130 350ms 15 days ago 537th GolfingSuccess 🇬🇷 690 58 4,193ms 8 May 2025 538th GolfingSuccess 🇬🇷 688 73 16ms 8 May 2025 539th Jonson26 687 112 395ms 2 days ago 540th KatieLG 🇬🇧 682 62 419ms 19 days ago 540th madex 🇩🇪 682 62 448ms 16 days ago 540th flekAI 682 62 393ms 117 mins ago 543rd HumanoidCPU 671 97 7ms 16 days ago 544th madex 🇩🇪 671 104 210ms 16 days ago 545th HumanoidCPU 669 101 361ms 17 days ago 546th Natanaelel 🇸🇪 665 130 360ms 2 May 2025 547th Shanethegamer 🇺🇸 664 98 7ms 6 May 2025 548th flekAI 662 59 7ms 27 mins ago 549th janAkali 🇷🇺 662 102 399ms 11 days ago 550th plcc0 654 26 6ms 17 days ago 551st albanian-laundromat 🇺🇸 645 99 343ms 21 days ago 552nd HumanoidCPU 643 108 13ms 16 days ago 553rd GolfingSuccess 🇬🇷 643 111 109ms 17 days ago 554th dokutan 643 140 316ms 15 days ago 555th BREMAUCY 🇫🇷 639 40 4ms 10 days ago 556th Shanethegamer 🇺🇸 635 136 315ms 26 Nov 2024 557th Natanaelel 🇸🇪 630 27 6ms 8 May 2025 558th FlorianCassayre 🇫🇷 629 84 19ms 10 hours ago 559th madex 🇩🇪 621 118 17ms 14 days ago 560th HumanoidCPU 620 103 329ms 17 days ago First Prev 481–560 of 633 Next Last