The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
Quine 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 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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 761st staufga0 947 32 9ms 10 Jan 2024 761st rucin93 🇵🇱 947 32 10ms 15 Jan 2024 761st byronknoll 🇺🇸 947 32 10ms 18 Jan 2024 761st nsprd 947 32 9ms 24 Jan 2024 761st bzijlema 🇳🇱 947 32 10ms 31 Jan 2024 761st Thonoton 947 32 9ms 1 Feb 2024 761st TheBaconPug 947 32 9ms 18 Feb 2024 761st 0xEigenDev 947 32 10ms 28 Feb 2024 761st helbling 🇨🇭 947 32 10ms 29 Feb 2024 761st FCORMERAIS 947 32 9ms 4 Mar 2024 761st Jacob385 947 32 10ms 9 Mar 2024 761st Ralac07 🇦🇺 947 32 10ms 11 Mar 2024 761st wenbang24 947 32 10ms 29 Mar 2024 761st thienudomsrirungruang 947 32 10ms 2 Apr 2024 761st madeforlosers 947 32 9ms 4 Apr 2024 761st CarsonChr 🇺🇸 947 32 10ms 7 Apr 2024 761st jfallon1997 947 32 10ms 9 Apr 2024 761st alex742 947 32 9ms 10 Apr 2024 761st Alex-Huggett 🇬🇧 947 32 9ms 13 Apr 2024 761st Herbert00709 🇵🇱 947 32 10ms 22 Apr 2024 761st aalec 947 32 9ms 23 Apr 2024 761st roupiq 🇵🇱 947 32 10ms 24 Apr 2024 761st sciencejiho 947 32 9ms 26 Apr 2024 761st Jasper-Ty 🇵🇭 947 32 10ms 27 Apr 2024 761st LHLaurini 🇧🇷 947 32 11ms 29 Apr 2024 761st error256 947 32 10ms 10 May 2024 761st zwxzwxzwx21 947 32 12ms 10 May 2024 761st kejcao 🇨🇦 947 32 10ms 16 May 2024 761st ComputerKWasTaken 🇺🇸 947 32 10ms 4 Jun 2024 761st stertooy 🇧🇪 947 32 10ms 14 Jun 2024 761st ceeb9 947 32 10ms 15 Jun 2024 761st wuzekai518 947 32 10ms 17 Jun 2024 761st Haksell 🇦🇶 947 32 10ms 19 Jun 2024 761st hacker112 🇸🇪 947 32 10ms 23 Jun 2024 761st CutSandstone 947 32 10ms 2 Jul 2024 761st cuboids 947 32 10ms 11 Jul 2024 761st codingisgreatbutiamnot 947 32 10ms 14 Jul 2024 761st csharpython 947 32 10ms 14 Jul 2024 761st rifatx 947 32 10ms 16 Jul 2024 761st hiichbindermax 947 32 10ms 28 Jul 2024 761st timhaj 🇸🇮 947 32 10ms 1 Aug 2024 761st Ythaenagor 947 32 9ms 5 Aug 2024 761st sjrct 947 32 9ms 5 Aug 2024 761st imelxr 🇮🇱 947 32 10ms 14 Aug 2024 761st Mathrew2012 947 32 9ms 15 Aug 2024 761st nickphe 947 32 10ms 19 Aug 2024 761st R4z0rX 947 32 9ms 20 Aug 2024 761st gallium-gonzollium 947 32 10ms 24 Aug 2024 761st TheCatGuy12321 947 32 10ms 26 Aug 2024 761st Mabeloid 🇳🇴 947 32 9ms 27 Aug 2024 761st Mikey-Beep 🇬🇧 947 32 9ms 2 Sep 2024 761st alemelis 947 32 9ms 13 Sep 2024 761st abhishekg999 947 32 10ms 22 Sep 2024 761st JesseNoEyes 🇺🇸 947 32 9ms 25 Sep 2024 761st xyangst 947 32 10ms 27 Sep 2024 761st dtbao20 🇻🇳 947 32 10ms 1 Oct 2024 761st smiksky 🇺🇸 947 32 9ms 16 Oct 2024 761st ahmetdemirag 🇨🇾 947 32 11ms 17 Oct 2024 761st griffinschreiber 947 32 10ms 1 Nov 2024 761st emgordon154 947 32 10ms 7 Nov 2024 761st wh3n3v3r 🇨🇿 947 32 10ms 8 Nov 2024 761st sciencedjinn 947 32 10ms 8 Nov 2024 761st OSYCh314 🇦🇺 947 32 10ms 15 Nov 2024 761st agreegious 947 32 9ms 17 Nov 2024 761st snydej 947 32 10ms 22 Nov 2024 761st Quirkly-Quasar 947 32 13ms 23 Nov 2024 761st JunkIce 947 32 10ms 3 Dec 2024 761st Quirkly-Quasar1 🇺🇸 947 32 10ms 8 Dec 2024 761st shenziyiszy 947 32 10ms 10 Dec 2024 761st croc54 947 32 9ms 16 Dec 2024 761st klixel 🇨🇦 947 32 10ms 17 Dec 2024 761st yujh-yujh 🇬🇸 947 32 10ms 3 Jan 2025 761st ryyyn 🇺🇸 947 32 10ms 7 Jan 2025 761st ridingqwerty 🇺🇸 947 32 10ms 15 Jan 2025 761st LostSyntax21 🇬🇧 947 32 9ms 19 Jan 2025 761st tte0 947 32 10ms 4 Feb 2025 761st plcc0 947 32 9ms 13 Feb 2025 761st DanielBash 947 32 10ms 15 Feb 2025 761st Languag3 947 32 9ms 27 Feb 2025 761st Pyroan 947 32 9ms 11 Mar 2025 First Prev 1,201–1,280 of 5,781 Next Last