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 flekAI 607 162 333ms 4 hours ago 482nd albanian-laundromat 🇺🇸 603 98 135ms 23 Feb 2026 483rd janAkali 🇷🇺 603 99 401ms 11 days ago 484th tomh1012 602 97 378ms 19 days ago 485th dokutan 596 54 39ms 2 days ago 486th michelebastione 🇮🇹 596 98 443ms 13 days ago 487th flekAI 594 66 1,280ms 4 hours ago 488th madex 🇩🇪 593 119 1,267ms 15 days ago 489th Shanethegamer 🇺🇸 593 121 166ms 13 Dec 2024 490th Solathian 591 46 77ms 17 days ago 491st flekAI 585 55 43ms 9 hours ago 492nd dokutan 583 72 209ms 2 days ago 493rd madex 🇩🇪 570 129 366ms 16 days ago 494th prestosilver 🇺🇸 568 105 381ms 11 days ago 495th Mikey-Beep 🇬🇧 567 99 25ms 4 days ago 496th scpchicken 🇵🇼 566 48 10ms 24 hours ago 497th flekAI 566 147 172ms 4 hours ago 498th JOrE20 562 100 46ms 15 Dec 2025 499th albanian-laundromat 🇺🇸 560 75 299ms 2 Mar 2026 500th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 501st dokutan 540 75 777ms 2 days ago 502nd JDiLenarda 🇫🇷 539 131 1,330ms 18 days ago 503rd Shanethegamer 🇺🇸 523 50 4,001ms 8 May 2025 504th Arkadios200 523 146 2,407ms 3 days ago 505th flekAI 522 128 686ms 4 hours ago 506th madex 🇩🇪 517 100 111ms 15 days ago 507th dokutan 515 191 293ms 2 days ago 508th flekAI 506 80 886ms 4 hours ago 509th madex 🇩🇪 494 53 475ms 16 days ago 510th HumanoidCPU 487 120 401ms 13 days ago 511th flekAI 477 154 354ms 4 hours ago 512th flekAI 475 142 188ms 4 hours ago 513th flekAI 472 89 223ms 4 hours ago 514th madex 🇩🇪 471 170 33ms 15 days ago 515th flekAI 460 59 5ms 9 hours ago 516th Shanethegamer 🇺🇸 460 85 6ms 13 Dec 2024 517th Shanethegamer 🇺🇸 452 107 8ms 9 May 2025 518th AstroOrbis 446 126 32ms 12 Aug 2025 519th Msleizak 🇫🇷 429 84 302ms 13 days ago 520th flekAI 429 139 378ms 4 hours ago 521st madex 🇩🇪 420 78 91ms 15 days ago 522nd kasarino 420 170 48ms 14 hours ago 523rd dokutan 414 163 477ms 2 days ago 524th flekAI 407 127 102ms 4 hours ago 525th flekAI 399 148 112ms 4 hours ago 526th flekAI 399 177 1,298ms 4 hours ago 527th dokutan 384 152 407ms 2 days ago 528th muser-logiccpu 🇺🇦 372 88 70ms 2 Sep 2025 529th flekAI 372 235 31ms 3 hours ago 530th flekAI 371 206 66ms 4 hours ago 531st flekAI 358 221 7ms 2 hours ago 532nd flekAI 346 169 426ms 4 hours ago 533rd flekAI 343 275 45ms 2 hours ago 534th flekAI 318 190 19ms 2 hours ago 535th flekAI 315 104 74ms 4 hours ago 536th flekAI 315 190 189ms 3 hours ago 537th flekAI 303 208 4ms 4 hours ago 538th Ripick 301 198 381ms 4 days ago 539th flekAI 300 120 459ms 4 hours ago 540th flekAI 274 208 5ms 3 hours ago 541st flekAI 270 97 148ms 4 hours ago 542nd flekAI 254 212 500ms 4 hours ago 543rd flekAI 239 164 6ms 3 hours ago 544th dokutan 225 253 5ms 2 days ago 545th flekAI 215 225 7ms 4 hours ago 546th flekAI 215 387 46ms 3 hours ago 547th dokutan 206 371 67ms 2 days ago 548th dokutan 170 371 4ms 2 days ago 549th dokutan 153 395 21ms 2 days ago 550th darrenks 🇺🇸 0 6 50ms 19 days ago 550th 2bular 0 6 45ms 19 days ago 550th Natanaelel 🇸🇪 0 6 48ms 19 days ago 550th plcc0 0 6 48ms 18 days ago 554th kg583 🇺🇸 0 9 921ms 14 May 2025 554th themoonisacheese 0 9 2,448ms 11 days ago 556th namelessiw 0 13 335ms 25 Oct 2025 557th AlephSquirrel 0 20 8ms 3 Dec 2025 557th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 559th AlephSquirrel 0 27 5ms 3 Dec 2025 559th ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 First Prev 481–560 of 573 Next Last