The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 hours. 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 764th Glinte 947 32 9ms 2 Jan 2024 764th yuchuehw 947 32 10ms 3 Jan 2024 764th staufga0 947 32 9ms 10 Jan 2024 764th rucin93 🇵🇱 947 32 10ms 15 Jan 2024 764th byronknoll 🇺🇸 947 32 10ms 18 Jan 2024 764th nsprd 947 32 9ms 24 Jan 2024 764th bzijlema 🇳🇱 947 32 10ms 31 Jan 2024 764th Thonoton 947 32 9ms 1 Feb 2024 764th TheBaconPug 947 32 9ms 18 Feb 2024 764th 0xEigenDev 947 32 10ms 28 Feb 2024 764th helbling 🇨🇭 947 32 10ms 29 Feb 2024 764th FCORMERAIS 947 32 9ms 4 Mar 2024 764th Jacob385 947 32 10ms 9 Mar 2024 764th Ralac07 🇦🇺 947 32 10ms 11 Mar 2024 764th wenbang24 947 32 10ms 29 Mar 2024 764th thienudomsrirungruang 947 32 10ms 2 Apr 2024 764th madeforlosers 947 32 9ms 4 Apr 2024 764th CarsonChr 🇺🇸 947 32 10ms 7 Apr 2024 764th jfallon1997 947 32 10ms 9 Apr 2024 764th alex742 947 32 9ms 10 Apr 2024 764th Alex-Huggett 🇬🇧 947 32 9ms 13 Apr 2024 764th Herbert00709 🇵🇱 947 32 10ms 22 Apr 2024 764th aalec 947 32 9ms 23 Apr 2024 764th roupiq 🇵🇱 947 32 10ms 24 Apr 2024 764th sciencejiho 947 32 9ms 26 Apr 2024 764th Jasper-Ty 🇵🇭 947 32 10ms 27 Apr 2024 764th LHLaurini 🇧🇷 947 32 11ms 29 Apr 2024 764th error256 947 32 10ms 10 May 2024 764th zwxzwxzwx21 947 32 12ms 10 May 2024 764th kejcao 🇨🇦 947 32 10ms 16 May 2024 764th ComputerKWasTaken 🇺🇸 947 32 10ms 4 Jun 2024 764th stertooy 🇧🇪 947 32 10ms 14 Jun 2024 764th ceeb9 947 32 10ms 15 Jun 2024 764th wuzekai518 947 32 10ms 17 Jun 2024 764th Haksell 🇦🇶 947 32 10ms 19 Jun 2024 764th hacker112 🇸🇪 947 32 10ms 23 Jun 2024 764th CutSandstone 947 32 10ms 2 Jul 2024 764th cuboids 947 32 10ms 11 Jul 2024 764th codingisgreatbutiamnot 947 32 10ms 14 Jul 2024 764th csharpython 947 32 10ms 14 Jul 2024 764th rifatx 947 32 10ms 16 Jul 2024 764th hiichbindermax 947 32 10ms 28 Jul 2024 764th timhaj 🇸🇮 947 32 10ms 1 Aug 2024 764th Ythaenagor 947 32 9ms 5 Aug 2024 764th sjrct 947 32 9ms 5 Aug 2024 764th imelxr 🇮🇱 947 32 10ms 14 Aug 2024 764th Mathrew2012 947 32 9ms 15 Aug 2024 764th nickphe 947 32 10ms 19 Aug 2024 764th R4z0rX 947 32 9ms 20 Aug 2024 764th gallium-gonzollium 947 32 10ms 24 Aug 2024 764th TheCatGuy12321 947 32 10ms 26 Aug 2024 764th Mabeloid 🇳🇴 947 32 9ms 27 Aug 2024 764th Mikey-Beep 🇬🇧 947 32 9ms 2 Sep 2024 764th alemelis 947 32 9ms 13 Sep 2024 764th abhishekg999 947 32 10ms 22 Sep 2024 764th JesseNoEyes 🇺🇸 947 32 9ms 25 Sep 2024 764th xyangst 947 32 10ms 27 Sep 2024 764th dtbao20 🇻🇳 947 32 10ms 1 Oct 2024 764th smiksky 🇺🇸 947 32 9ms 16 Oct 2024 764th ahmetdemirag 🇨🇾 947 32 11ms 17 Oct 2024 764th griffinschreiber 947 32 10ms 1 Nov 2024 764th emgordon154 947 32 10ms 7 Nov 2024 764th wh3n3v3r 🇨🇿 947 32 10ms 8 Nov 2024 764th sciencedjinn 947 32 10ms 8 Nov 2024 764th OSYCh314 🇦🇺 947 32 10ms 15 Nov 2024 764th agreegious 947 32 9ms 17 Nov 2024 764th snydej 947 32 10ms 22 Nov 2024 764th Quirkly-Quasar 947 32 13ms 23 Nov 2024 764th JunkIce 947 32 10ms 3 Dec 2024 764th Quirkly-Quasar1 🇺🇸 947 32 10ms 8 Dec 2024 764th shenziyiszy 947 32 10ms 10 Dec 2024 764th croc54 947 32 9ms 16 Dec 2024 764th klixel 🇨🇦 947 32 10ms 17 Dec 2024 764th yujh-yujh 🇬🇸 947 32 10ms 3 Jan 2025 764th ryyyn 🇺🇸 947 32 10ms 7 Jan 2025 764th ridingqwerty 🇺🇸 947 32 10ms 15 Jan 2025 764th LostSyntax21 🇬🇧 947 32 9ms 19 Jan 2025 764th tte0 947 32 10ms 4 Feb 2025 764th plcc0 947 32 9ms 13 Feb 2025 764th DanielBash 947 32 10ms 15 Feb 2025 First Prev 1,201–1,280 of 5,784 Next Last