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) Taxicab Numbers 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic 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) Taxicab Numbers 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 501st kasarino 607 104 3ms 25 Mar 2026 502nd duckyluuk 🇳🇱 606 69 119ms 8 days ago 503rd scpchicken 🇵🇼 602 45 6ms 17 days ago 504th tomh1012 602 97 474ms 24 Mar 2026 505th janAkali 🇷🇺 600 99 434ms 1 Apr 2026 506th albanian-laundromat 🇺🇸 598 98 146ms 23 Feb 2026 507th dokutan 597 54 48ms 20 days ago 508th Shanethegamer 🇺🇸 597 121 166ms 13 Dec 2024 509th michelebastione 🇮🇹 596 98 443ms 30 Mar 2026 510th madex 🇩🇪 590 119 1,464ms 28 Mar 2026 511th Solathian 589 46 77ms 26 Mar 2026 512th dokutan 581 72 209ms 20 days ago 513th Mikey-Beep 🇬🇧 568 99 25ms 22 days ago 514th madex 🇩🇪 568 129 426ms 27 Mar 2026 515th prestosilver 🇺🇸 566 105 430ms 1 Apr 2026 516th JOrE20 563 100 46ms 15 Dec 2025 516th tails618 563 100 22ms 17 days ago 518th dokutan 560 129 37ms 34 hours ago 519th albanian-laundromat 🇺🇸 557 75 268ms 2 Mar 2026 520th Shanethegamer 🇺🇸 549 146 31ms 9 May 2025 521st dokutan 538 75 825ms 20 days ago 522nd JDiLenarda 🇫🇷 536 131 1,562ms 25 Mar 2026 523rd Shanethegamer 🇺🇸 523 50 4,043ms 8 May 2025 524th Arkadios200 520 146 2,610ms 21 days ago 525th madex 🇩🇪 514 100 118ms 28 Mar 2026 526th dokutan 513 191 293ms 20 days ago 527th dcc5480 507 111 20ms 15 days ago 528th madex 🇩🇪 494 53 510ms 27 Mar 2026 529th HumanoidCPU 487 120 515ms 30 Mar 2026 530th madex 🇩🇪 471 170 33ms 28 Mar 2026 531st denkyuu1 460 70 45ms 4 days ago 532nd Shanethegamer 🇺🇸 460 85 6ms 13 Dec 2024 533rd Shanethegamer 🇺🇸 450 107 8ms 9 May 2025 534th AstroOrbis 447 126 32ms 12 Aug 2025 535th Msleizak 🇫🇷 427 84 339ms 30 Mar 2026 536th kasarino 420 170 45ms 18 days ago 537th madex 🇩🇪 418 78 91ms 28 Mar 2026 538th dokutan 414 163 470ms 20 days ago 539th dokutan 384 152 448ms 20 days ago 540th muser-logiccpu 🇺🇦 370 88 70ms 2 Sep 2025 541st Ripick 300 198 466ms 22 days ago 542nd dokutan 295 192 5ms 11 days ago 543rd dokutan 258 233 20ms 11 days ago 544th dokutan 205 371 72ms 20 days ago 545th dokutan 170 371 4ms 20 days ago 546th darrenks 🇺🇸 0 6 45ms 24 Mar 2026 546th 2bular 0 6 45ms 24 Mar 2026 546th Natanaelel 🇸🇪 0 6 46ms 24 Mar 2026 546th plcc0 0 6 46ms 25 Mar 2026 550th kg583 🇺🇸 0 9 940ms 14 May 2025 550th themoonisacheese 0 9 2,893ms 1 Apr 2026 550th someCoder-a11y 0 9 214ms 14 days ago 550th namelessiw 0 9 344ms 14 days ago 554th AlephSquirrel 0 20 8ms 3 Dec 2025 554th ovs-code 🇩🇪 0 20 9ms 3 Dec 2025 556th AlephSquirrel 0 27 5ms 3 Dec 2025 556th ovs-code 🇩🇪 0 27 6ms 7 Dec 2025 558th ovs-code 🇩🇪 0 29 123ms 3 Dec 2025 559th Shanethegamer 🇺🇸 0 31 35ms 27 hours ago 560th KatieLG 🇬🇧 0 43 65ms 29 Mar 2026 561st madex 🇩🇪 0 59 1,440ms 27 Mar 2026 562nd dokutan 0 64 426ms 11 days ago 563rd GolfingSuccess 🇬🇷 0 65 92ms 12 Jan 2026 564th Shanethegamer 🇺🇸 0 67 92ms 7 May 2025 565th GolfingSuccess 🇬🇷 0 71 23ms 12 Jan 2026 565th GolfingSuccess 🇬🇷 0 71 18ms 14 Jan 2026 567th dokutan 0 72 71ms 2 days ago 568th Matter1024 🇮🇳 0 101 60ms 18 days ago 569th edsrzf 🇳🇿 0 108 1,839ms 21 May 2025 570th btjones0 0 126 168ms 25 Mar 2026 571st FortuiteMan 🇫🇷 0 132 267ms 5 days ago 572nd edsrzf 🇳🇿 0 136 4,774ms 19 May 2025 573rd dokutan 0 199 13ms 2 days ago First Prev 501–573 of 573