The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 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 760th dgambit 947 32 10ms 2 Apr 2021 760th nsauzede 947 32 9ms 10 Apr 2021 760th gnash117 947 32 9ms 11 Apr 2021 760th 051 🇸🇬 947 32 10ms 23 Apr 2021 760th didion0 🇺🇸 947 32 10ms 23 Apr 2021 760th Sp3000 🇦🇺 947 32 10ms 26 Apr 2021 760th aliakseikalosha 947 32 9ms 26 Apr 2021 760th lochnessdragon 947 32 9ms 4 May 2021 760th cbondurant 947 32 10ms 5 May 2021 760th baby-steve 947 32 9ms 5 May 2021 760th Stockoh 🇫🇷 947 32 9ms 8 May 2021 760th peculiarination 947 32 9ms 11 May 2021 760th pascscha 947 32 11ms 13 May 2021 760th Frowny 947 32 10ms 18 May 2021 760th domzymonz 947 32 11ms 21 May 2021 760th enbyte 947 32 10ms 21 May 2021 760th PYRiTEmonark 947 32 9ms 22 May 2021 760th urojony 🇵🇱 947 32 10ms 26 May 2021 760th clementblaudeau 947 32 10ms 27 May 2021 760th Natanaelel 🇸🇪 947 32 9ms 28 May 2021 760th Echriser 947 32 10ms 1 Jun 2021 760th Larspolo 947 32 9ms 6 Jun 2021 760th PhysicDev 🇫🇷 947 32 9ms 10 Jun 2021 760th abba23 947 32 9ms 13 Jun 2021 760th silvncr 947 32 10ms 15 Jun 2021 760th mokymok 🇺🇸 947 32 10ms 15 Jun 2021 760th SniperSmiley 🇺🇸 947 32 9ms 25 Jun 2021 760th ScottHamper 947 32 9ms 1 Jul 2021 760th kurkale6ka 947 32 10ms 15 Jul 2021 760th glf818 947 32 9ms 22 Jul 2021 760th madex 🇩🇪 947 32 9ms 28 Jul 2021 760th RYNO8 947 32 10ms 8 Aug 2021 760th Rhinozz 🇨🇦 947 32 9ms 9 Aug 2021 760th schachmattmatt 947 32 9ms 11 Aug 2021 760th mauro-1 🇮🇹 947 32 9ms 18 Aug 2021 760th jacklynnepenick 947 32 9ms 19 Aug 2021 760th Jonatan6 🇩🇰 947 32 10ms 29 Aug 2021 760th olivermrose 🇺🇸 947 32 9ms 29 Aug 2021 760th NicholasSeward 947 32 10ms 9 Sep 2021 760th UladzimirSukharukau 947 32 10ms 15 Sep 2021 760th Fmbalbuena 947 32 10ms 16 Sep 2021 760th underscorelior 947 32 10ms 18 Sep 2021 760th tegenton 947 32 10ms 4 Oct 2021 760th cubed-guy 947 32 10ms 18 Oct 2021 760th MarcMush 🇫🇷 947 32 9ms 20 Oct 2021 760th danielweper 947 32 10ms 21 Oct 2021 760th ozefe 🇹🇷 947 32 10ms 28 Oct 2021 760th Bubbler-4 947 32 10ms 3 Nov 2021 760th shellbertt 🇨🇦 947 32 10ms 3 Nov 2021 760th ZakkkkAttackkkk 🇵🇭 947 32 9ms 3 Nov 2021 760th aglahir1 947 32 9ms 5 Nov 2021 760th CodyMiner 947 32 10ms 11 Nov 2021 760th xy3 🇮🇪 947 32 9ms 18 Nov 2021 760th Anonymousellama21 947 32 9ms 24 Nov 2021 760th sleepyStick 947 32 9ms 4 Dec 2021 760th LouisRustenholz 947 32 9ms 23 Dec 2021 760th chayleaf 947 32 10ms 7 Jan 2022 760th TimHuisman1703 947 32 10ms 7 Jan 2022 760th razetime 947 32 9ms 12 Jan 2022 760th QuincyNash 🇺🇸 947 32 9ms 14 Jan 2022 760th CuboidRaptor 🇨🇦 947 32 10ms 18 Jan 2022 760th lovernj 947 32 9ms 21 Jan 2022 760th Bonjour27891 🇻🇳 947 32 10ms 25 Jan 2022 760th thealtofwar 947 32 10ms 31 Jan 2022 760th varhammer 947 32 10ms 31 Jan 2022 760th aposteriorist 🇨🇦 947 32 9ms 15 Feb 2022 760th RoscoeDaWah 🇬🇧 947 32 10ms 15 Feb 2022 760th nick99nack 947 32 9ms 15 Feb 2022 760th j-Ewan 947 32 9ms 16 Feb 2022 760th MichaelMBradley 🇨🇦 947 32 10ms 16 Feb 2022 760th guilhem-roy 🇫🇷 947 32 9ms 23 Feb 2022 760th ValNyz 947 32 10ms 23 Feb 2022 760th Great-Gamer 947 32 9ms 24 Feb 2022 760th hellwue 947 32 9ms 2 Mar 2022 760th mathisfun271 947 32 9ms 6 Mar 2022 760th vodker1 947 32 10ms 7 Mar 2022 760th gitbedd 🇬🇧 947 32 9ms 13 Mar 2022 760th Drew-j-Smith 947 32 10ms 29 Mar 2022 760th pandaninjas 947 32 9ms 1 Apr 2022 760th EthanGrant1 947 32 10ms 13 Apr 2022 First Prev 961–1,040 of 5,780 Next Last