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 481st UnderKoen 🇳🇱 617 139 1,195ms 20 days ago 482nd KatieLG 🇬🇧 615 82 424ms 13 days ago 483rd brian124634 613 103 4ms 12 days ago 484th madex 🇩🇪 611 99 19ms 17 days ago 485th kasarino 607 104 3ms 20 days ago 486th flekAI 607 162 312ms 2 days ago 487th scpchicken 🇵🇼 604 45 6ms 23 hours ago 488th tomh1012 604 97 378ms 21 days ago 489th albanian-laundromat 🇺🇸 603 98 135ms 23 Feb 2026 490th janAkali 🇷🇺 603 99 401ms 13 days ago 491st michelebastione 🇮🇹 598 98 443ms 15 days ago 492nd dokutan 597 54 39ms 4 days ago 493rd flekAI 594 66 1,280ms 2 days ago 494th madex 🇩🇪 593 119 1,267ms 17 days ago 495th Shanethegamer 🇺🇸 593 121 166ms 13 Dec 2024 496th Solathian 591 46 77ms 19 days ago 497th flekAI 586 55 40ms 2 days ago 498th dokutan 583 72 209ms 4 days ago 499th madex 🇩🇪 570 129 366ms 18 days ago 500th Mikey-Beep 🇬🇧 568 99 25ms 6 days ago 501st prestosilver 🇺🇸 568 105 381ms 13 days ago 502nd flekAI 566 147 172ms 2 days ago 503rd JOrE20 562 100 46ms 15 Dec 2025 503rd tails618 562 100 22ms 40 hours ago 505th albanian-laundromat 🇺🇸 560 75 299ms 2 Mar 2026 506th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 507th dokutan 540 75 777ms 4 days ago 508th JDiLenarda 🇫🇷 539 131 1,330ms 20 days ago 509th Shanethegamer 🇺🇸 523 50 4,001ms 8 May 2025 510th Arkadios200 523 146 2,407ms 5 days ago 511th flekAI 522 128 686ms 2 days ago 512th madex 🇩🇪 517 100 111ms 17 days ago 513th dokutan 515 191 293ms 4 days ago 514th flekAI 506 80 886ms 2 days ago 515th madex 🇩🇪 494 53 475ms 18 days ago 516th HumanoidCPU 488 120 401ms 15 days ago 517th flekAI 477 154 354ms 2 days ago 518th flekAI 475 142 186ms 2 days ago 519th flekAI 472 89 223ms 2 days ago 520th madex 🇩🇪 471 170 33ms 17 days ago 521st flekAI 460 59 5ms 2 days ago 522nd Shanethegamer 🇺🇸 460 85 6ms 13 Dec 2024 523rd Shanethegamer 🇺🇸 452 107 8ms 9 May 2025 524th AstroOrbis 446 126 32ms 12 Aug 2025 525th Msleizak 🇫🇷 429 84 302ms 15 days ago 526th flekAI 429 139 378ms 2 days ago 527th madex 🇩🇪 420 78 91ms 17 days ago 528th kasarino 420 170 46ms 2 days ago 529th dokutan 414 163 477ms 4 days ago 530th flekAI 407 127 102ms 2 days ago 531st flekAI 399 148 112ms 2 days ago 532nd flekAI 399 177 1,298ms 2 days ago 533rd dokutan 385 152 407ms 4 days ago 534th muser-logiccpu 🇺🇦 372 88 70ms 2 Sep 2025 535th flekAI 372 235 31ms 46 hours ago 536th flekAI 371 206 66ms 2 days ago 537th flekAI 360 221 7ms 45 hours ago 538th flekAI 347 169 426ms 2 days ago 539th flekAI 341 275 45ms 45 hours ago 540th flekAI 318 190 19ms 45 hours ago 541st flekAI 315 104 74ms 2 days ago 542nd flekAI 315 190 189ms 46 hours ago 543rd flekAI 303 208 4ms 2 days ago 544th Ripick 301 198 381ms 6 days ago 545th flekAI 300 120 459ms 2 days ago 546th flekAI 274 208 5ms 46 hours ago 547th flekAI 270 97 148ms 2 days ago 548th flekAI 254 212 500ms 2 days ago 549th flekAI 239 164 6ms 46 hours ago 550th dokutan 225 253 5ms 4 days ago 551st flekAI 215 225 7ms 2 days ago 552nd flekAI 215 387 46ms 46 hours ago 553rd dokutan 206 371 67ms 4 days ago 554th dokutan 170 371 4ms 4 days ago 555th dokutan 153 395 21ms 4 days ago 556th darrenks 🇺🇸 0 6 50ms 21 days ago 556th 2bular 0 6 45ms 21 days ago 556th Natanaelel 🇸🇪 0 6 48ms 21 days ago 556th plcc0 0 6 48ms 20 days ago 560th kg583 🇺🇸 0 9 921ms 14 May 2025 First Prev 481–560 of 579 Next Last