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 561st CaedenHarper 🇨🇦 750 93 12ms 21 Mar 2026 562nd HumanoidCPU 747 96 162ms 27 days ago 563rd GolfingSuccess 🇬🇷 742 48 5ms 25 days ago 564th retrohun 731 55 375ms 15 days ago 565th madex 🇩🇪 728 54 10ms 25 days ago 566th DialFrost 🇸🇬 727 61 755ms 8 days ago 567th edsrzf 🇳🇿 723 88 352ms 21 days ago 568th jusaka 723 215 1,713ms 6 days ago 569th DialFrost 🇸🇬 718 56 2,639ms 16 Dec 2025 570th DialFrost 🇸🇬 717 88 101ms 23 days ago 571st Shanethegamer 🇺🇸 715 89 341ms 6 May 2025 572nd ovs-code 🇩🇪 715 237 107ms 27 days ago 573rd denkyuu1 714 55 9ms 7 days ago 574th JOrE20 708 24 91ms 13 Feb 2026 575th Shanethegamer 🇺🇸 706 84 474ms 26 Nov 2024 575th dokutan 706 84 420ms 25 days ago 577th GolfingSuccess 🇬🇷 704 73 16ms 8 May 2025 578th dokutan 704 99 12ms 25 days ago 579th Shanethegamer 🇺🇸 698 51 4ms 30 Apr 2025 579th albanian-laundromat 🇺🇸 698 51 5ms 27 days ago 581st HumanoidCPU 698 85 451ms 26 days ago 582nd madex 🇩🇪 697 130 350ms 24 days ago 583rd GolfingSuccess 🇬🇷 693 58 4,193ms 8 May 2025 584th Jonson26 688 112 395ms 11 days ago 585th KatieLG 🇬🇧 683 62 419ms 23 Mar 2026 585th madex 🇩🇪 683 62 448ms 25 days ago 585th jusaka 683 62 405ms 5 days ago 588th HumanoidCPU 676 97 7ms 25 days ago 589th madex 🇩🇪 676 104 210ms 25 days ago 590th HumanoidCPU 674 101 361ms 27 days ago 591st Natanaelel 🇸🇪 672 130 360ms 2 May 2025 592nd dokutan 671 135 293ms 5 days ago 593rd Shanethegamer 🇺🇸 669 98 7ms 6 May 2025 594th janAkali 🇷🇺 668 102 399ms 20 days ago 595th plcc0 654 26 6ms 26 days ago 596th GolfingSuccess 🇬🇷 650 111 109ms 26 days ago 597th jusaka 647 43 122ms 6 days ago 598th HumanoidCPU 645 108 13ms 25 days ago 599th albanian-laundromat 🇺🇸 643 99 343ms 21 Mar 2026 600th Shanethegamer 🇺🇸 643 136 315ms 26 Nov 2024 601st BREMAUCY 🇫🇷 640 40 4ms 19 days ago 602nd jusaka 637 121 399ms 6 days ago 603rd Natanaelel 🇸🇪 630 27 6ms 8 May 2025 604th FlorianCassayre 🇫🇷 630 84 19ms 9 days ago 605th jusaka 630 86 46ms 5 days ago 606th madex 🇩🇪 624 118 16ms 24 days ago 607th emgordon154 623 71 32ms 23 days ago 608th HumanoidCPU 618 103 329ms 26 days ago 609th Alex-x90 🇺🇸 611 114 4ms 9 days ago 610th Shanethegamer 🇺🇸 610 46 259ms 26 Nov 2024 611th HumanoidCPU 603 59 278ms 21 days ago 612th madex 🇩🇪 601 106 334ms 24 days ago 613th jusaka 599 89 2,375ms 6 days ago 614th madex 🇩🇪 593 130 345ms 25 days ago 615th prestosilver 🇺🇸 592 115 411ms 24 Mar 2026 616th zgialor-lab 591 87 18ms 4 days ago 617th albanian-laundromat 🇺🇸 587 150 28ms 22 Mar 2026 618th not-a-pokemon 586 119 15ms 27 days ago 619th madex 🇩🇪 585 48 310ms 25 days ago 620th CaedenHarper 🇨🇦 580 129 462ms 21 Mar 2026 621st ComradeSquirrel 576 121 14ms 20 hours ago 622nd dokutan 575 114 7ms 5 days ago 623rd retrohun 574 62 5ms 15 days ago 624th madex 🇩🇪 563 121 366ms 24 days ago 625th JOrE20 554 159 69ms 14 Feb 2026 626th madex 🇩🇪 547 182 7ms 24 days ago 627th snoozingnewt 🇨🇦 544 116 113ms 18 days ago 628th snydej 535 99 45ms 22 Nov 2024 629th jusaka 524 126 112ms 6 days ago 630th jusaka 518 175 307ms 6 days ago 631st jusaka 514 121 17ms 6 days ago 632nd emgordon154 512 150 15ms 9 May 2025 633rd madex 🇩🇪 509 112 1,473ms 24 days ago 634th jusaka 504 73 1,652ms 6 days ago 635th jusaka 498 148 16ms 6 days ago 636th KrausRaus 🇺🇸 496 83 13ms 25 days ago 637th albanian-laundromat 🇺🇸 492 57 313ms 23 Mar 2026 638th caleblin125 481 110 22ms 7 days ago 639th jusaka 479 95 141ms 5 days ago 640th HumanoidCPU 476 59 341ms 22 days ago First Prev 561–640 of 750 Next Last