The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 9 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 gitbedd 🇬🇧 947 32 9ms 13 Mar 2022 764th Drew-j-Smith 947 32 10ms 29 Mar 2022 764th pandaninjas 947 32 9ms 1 Apr 2022 764th EthanGrant1 947 32 10ms 13 Apr 2022 764th Yareeeema 947 32 10ms 13 Apr 2022 764th jm600 947 32 9ms 14 Apr 2022 764th pyrolitic 🇮🇪 947 32 9ms 27 Apr 2022 764th tkr-sh 🇰🇵 947 32 10ms 28 Apr 2022 764th Romain-1 🇫🇷 947 32 9ms 28 Apr 2022 764th GeneralTwi 947 32 9ms 4 May 2022 764th MichalMarsalek 🇨🇿 947 32 10ms 6 May 2022 764th Ailko 🇧🇪 947 32 10ms 6 May 2022 764th andre-de-lorde 947 32 9ms 6 May 2022 764th Jaydosu 947 32 10ms 10 May 2022 764th ophact 947 32 9ms 11 May 2022 764th connorslade 947 32 10ms 13 May 2022 764th pengu1n-master 947 32 9ms 20 May 2022 764th Mortis66666 947 32 10ms 27 May 2022 764th AliceFord 947 32 9ms 2 Jun 2022 764th solmyr2000 947 32 9ms 12 Jun 2022 764th nullie 947 32 9ms 14 Jun 2022 764th k3w1k0d3r 947 32 9ms 22 Jun 2022 764th Educorreia932 947 32 9ms 22 Jun 2022 764th shinh 947 32 9ms 28 Jun 2022 764th dylan-dang 947 32 10ms 1 Jul 2022 764th BREMAUCY 🇫🇷 947 32 10ms 5 Jul 2022 764th michael-pruglo 🇺🇦 947 32 9ms 6 Jul 2022 764th shachy 947 32 10ms 15 Jul 2022 764th jroscoe5 947 32 9ms 21 Jul 2022 764th abrn 947 32 10ms 30 Jul 2022 764th InigoK 🇺🇸 947 32 10ms 2 Aug 2022 764th P-Quentin 🇫🇷 947 32 9ms 3 Aug 2022 764th 5quiwyrm 947 32 10ms 3 Aug 2022 764th hamhub7 947 32 9ms 4 Aug 2022 764th bthalheim 947 32 10ms 5 Aug 2022 764th jaxmattfair 🇺🇸 947 32 9ms 5 Aug 2022 764th vhoulbreque 🇫🇷 947 32 10ms 15 Aug 2022 764th kcinnu 🇱🇹 947 32 11ms 17 Aug 2022 764th commandz0 🇺🇸 947 32 10ms 18 Aug 2022 764th Liastrae 947 32 9ms 22 Aug 2022 764th tcql 🇺🇸 947 32 10ms 22 Aug 2022 764th Bananapants22 947 32 9ms 4 Sep 2022 764th trist224 🇫🇷 947 32 9ms 15 Sep 2022 764th 4hg 🇺🇸 947 32 10ms 17 Sep 2022 764th LogicalJoe 947 32 9ms 26 Sep 2022 764th pyuraii 947 32 9ms 27 Sep 2022 764th MaxElf999 947 32 9ms 27 Sep 2022 764th fredrik-bakke 🇳🇴 947 32 10ms 29 Sep 2022 764th suwat513 947 32 9ms 29 Sep 2022 764th TheBlupper 947 32 10ms 30 Sep 2022 764th georgehulme 947 32 9ms 6 Oct 2022 764th ldoodle 947 32 9ms 6 Oct 2022 764th ValentinCassayre 947 32 9ms 8 Oct 2022 764th eshilo-draper 947 32 10ms 9 Oct 2022 764th jakobkordez 🇸🇮 947 32 9ms 13 Oct 2022 764th PogLop 🇨🇿 947 32 10ms 15 Oct 2022 764th Nicronmil 947 32 9ms 19 Oct 2022 764th garrisonhh 947 32 10ms 23 Oct 2022 764th AodhanDalton 947 32 10ms 24 Oct 2022 764th bonevbs 947 32 9ms 20 Nov 2022 764th Manitary 947 32 9ms 28 Nov 2022 764th DaCuteRaccoon 947 32 10ms 1 Dec 2022 764th nstearns96 🇬🇧 947 32 10ms 2 Dec 2022 764th TaserTheFox 🇺🇸 947 32 10ms 5 Dec 2022 764th Captain-Quack 947 32 9ms 14 Dec 2022 764th CatsAreFluffy 947 32 10ms 16 Dec 2022 764th hectordubuis 947 32 9ms 16 Dec 2022 764th mousetail 🇳🇱 947 32 9ms 19 Dec 2022 764th StefanHabel 🇨🇦 947 32 9ms 19 Dec 2022 764th daniel-montanari 947 32 10ms 20 Dec 2022 764th 4ndyJ 🇬🇧 947 32 10ms 21 Dec 2022 764th luni-moon 🇺🇸 947 32 9ms 23 Dec 2022 764th nayakrujul 947 32 9ms 24 Dec 2022 764th firegene 🇮🇪 947 32 9ms 2 Jan 2023 764th thehylian 947 32 10ms 4 Jan 2023 764th thatbirdguythatuknownot 947 32 10ms 4 Jan 2023 764th MCausc78 🇺🇦 947 32 10ms 5 Jan 2023 764th wimglenn 947 32 9ms 6 Jan 2023 764th zakariamouhid 947 32 10ms 10 Jan 2023 764th Betuaredead 947 32 9ms 14 Jan 2023 First Prev 1,041–1,120 of 5,784 Next Last