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 canissimia 🇦🇶 780 143 15ms 12 days ago 482nd Yax42 🇫🇷 778 89 13ms 10 days ago 482nd DialFrost 🇸🇬 778 89 13ms 8 days ago 482nd solisolu 778 89 4ms 2 days ago 485th dokutan 775 99 409ms 12 days ago 486th Pyroan 773 22 92ms 12 days ago 487th GolfingSuccess 🇬🇷 769 135 80ms 10 days ago 488th dokutan 767 58 176ms 12 days ago 489th albanian-laundromat 767 243 15ms 15 days ago 490th HumanoidCPU 764 48 1,424ms 12 days ago 491st JOrE20 761 70 41ms 13 Feb 2026 492nd HumanoidCPU 760 101 382ms 11 days ago 493rd albanian-laundromat 757 99 343ms 16 days ago 494th JOrE20 756 37 252ms 9 Dec 2025 495th aadenboy 🇺🇸 753 87 7ms 7 days ago 496th madex 🇩🇪 753 92 12ms 13 days ago 497th HumanoidCPU 750 52 8ms 7 days ago 498th madex 🇩🇪 750 79 120ms 9 days ago 499th HumanoidCPU 747 96 163ms 12 days ago 500th CaedenHarper 🇨🇦 745 93 13ms 16 days ago 501st Jacob385 745 103 360ms 9 days ago 502nd retrohun 728 55 375ms 2 hours ago 503rd HumanoidCPU 728 103 329ms 11 days ago 504th madex 🇩🇪 722 54 10ms 10 days ago 505th DialFrost 🇸🇬 715 56 2,639ms 16 Dec 2025 506th ovs-code 🇩🇪 715 237 107ms 12 days ago 507th DialFrost 🇸🇬 711 88 101ms 8 days ago 508th JOrE20 708 24 91ms 13 Feb 2026 509th madex 🇩🇪 707 106 334ms 9 days ago 510th Shanethegamer 🇺🇸 704 84 416ms 26 Nov 2024 510th dokutan 704 84 382ms 10 days ago 512th dokutan 700 99 12ms 10 days ago 513th HumanoidCPU 696 85 434ms 11 days ago 514th madex 🇩🇪 693 130 269ms 9 days ago 515th GolfingSuccess 🇬🇷 690 58 4,193ms 8 May 2025 516th GolfingSuccess 🇬🇷 688 73 16ms 8 May 2025 517th KatieLG 🇬🇧 681 62 416ms 14 days ago 517th madex 🇩🇪 681 62 426ms 10 days ago 519th HumanoidCPU 676 59 278ms 6 days ago 520th HumanoidCPU 676 97 7ms 10 days ago 521st Shanethegamer 🇺🇸 669 98 7ms 6 May 2025 522nd madex 🇩🇪 668 104 210ms 10 days ago 523rd HumanoidCPU 665 101 361ms 12 days ago 524th Natanaelel 🇸🇪 665 130 360ms 2 May 2025 525th janAkali 🇷🇺 659 102 399ms 5 days ago 526th plcc0 654 26 6ms 11 days ago 527th retrohun 643 62 5ms 117 mins ago 528th GolfingSuccess 🇬🇷 643 111 107ms 11 days ago 529th dokutan 643 140 279ms 10 days ago 530th HumanoidCPU 642 108 13ms 10 days ago 531st BREMAUCY 🇫🇷 636 40 4ms 4 days ago 532nd Shanethegamer 🇺🇸 635 136 315ms 26 Nov 2024 533rd Natanaelel 🇸🇪 630 27 6ms 8 May 2025 534th vang1ong7ang 623 115 162ms 4 days ago 535th madex 🇩🇪 621 118 17ms 9 days ago 536th emgordon154 617 71 32ms 8 days ago 537th Shanethegamer 🇺🇸 608 46 304ms 26 Nov 2024 538th madex 🇩🇪 591 130 412ms 10 days ago 539th scpchicken 🇵🇼 586 29 7ms 43 hours ago 540th prestosilver 🇺🇸 584 115 414ms 13 days ago 541st madex 🇩🇪 583 48 271ms 10 days ago 542nd albanian-laundromat 583 150 28ms 15 days ago 543rd not-a-pokemon 582 119 15ms 12 days ago 544th CaedenHarper 🇨🇦 578 129 446ms 16 days ago 545th madex 🇩🇪 568 182 7ms 9 days ago 546th madex 🇩🇪 555 121 366ms 9 days ago 547th JOrE20 550 159 69ms 14 Feb 2026 548th snoozingnewt 🇨🇦 540 116 113ms 3 days ago 549th snydej 533 99 43ms 22 Nov 2024 550th emgordon154 524 150 15ms 9 May 2025 551st madex 🇩🇪 502 112 1,333ms 9 days ago 552nd KrausRaus 🇺🇸 494 83 14ms 10 days ago 553rd albanian-laundromat 491 57 272ms 14 days ago 554th MeWhenI 🇻🇦 475 83 1,088ms 11 hours ago 555th HumanoidCPU 474 59 255ms 7 days ago 556th dokutan 472 158 74ms 10 days ago 557th madex 🇩🇪 471 85 70ms 9 days ago 558th CaedenHarper 🇨🇦 450 89 101ms 14 days ago 559th madex 🇩🇪 443 204 32ms 9 days ago 560th kasarino 441 157 12ms 12 days ago First Prev 481–560 of 601 Next Last