The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 days. Why not try and solve them ahead of time?
Divisors in all languages in bytes. 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 Bytes Time Submitted 28th 4atj 984 57 101ms 18 Apr 2025 28th ryyyn 🇺🇸 984 57 10ms 20 May 2025 28th Lv0Sys 🇵🇱 984 57 11ms 31 May 2025 28th smilesformiles3 984 57 10ms 14 Jun 2025 28th Flekay 🇩🇪 984 57 11ms 19 Jun 2025 28th lukegustafson 🇺🇸 984 57 11ms 30 Jun 2025 28th dirckvdende 984 57 10ms 2 Jul 2025 28th wuduculfre 984 57 11ms 21 Jul 2025 28th Daniel-Ellison 984 57 10ms 8 Aug 2025 28th janlelis 984 57 12ms 14 Aug 2025 28th blaztoma 🇱🇹 984 57 10ms 27 Sep 2025 28th BrunoVisnadi 🇧🇷 984 57 10ms 27 Sep 2025 28th qpwoeirut 984 57 10ms 29 Sep 2025 28th albanian-laundromat 984 57 11ms 4 Oct 2025 28th Babafaba 984 57 10ms 15 Oct 2025 28th luuumine 🇫🇷 984 57 10ms 16 Oct 2025 28th solisolu 984 57 11ms 30 Oct 2025 28th webmiche 984 57 11ms 3 Nov 2025 28th jacekwladzinski 984 57 11ms 4 Nov 2025 28th Mukundan314 984 57 11ms 4 Nov 2025 28th sunleonid 984 57 11ms 26 Nov 2025 28th GodlyProgrammer1 984 57 11ms 27 Nov 2025 28th CommandLeo 🇮🇹 984 57 11ms 28 Nov 2025 28th hellopir2 984 57 11ms 4 Dec 2025 28th Natanaelel 🇸🇪 984 57 10ms 9 Feb 2026 28th yujh-yujh 🇬🇸 984 57 11ms 20 days ago 28th Googolplexo 🇷🇺 984 57 11ms 4 days ago 28th aksyristos 984 57 11ms 3 days ago 28th professor-l 984 57 11ms 4 hours ago 350th MeWhenI 🇻🇦 982 24 56ms 23 Jul 2022 350th canissimia 🇦🇶 982 24 54ms 23 Jul 2022 350th sisyphus-ppcg 🇦🇺 982 24 55ms 24 Jul 2022 350th saito-ta 🇯🇵 982 24 52ms 2 Aug 2022 350th clockworknazo 982 24 55ms 8 Aug 2022 350th GolfingSuccess 🇬🇷 982 24 58ms 19 Nov 2023 350th fuzzylojik-golf 🇺🇸 982 24 55ms 2 Aug 2025 350th emgordon154 982 24 56ms 21 Nov 2025 358th prplz 🇦🇺 979 49 11ms 9 Oct 2019 358th primo-ppcg 🇹🇭 979 49 9ms 22 Apr 2020 358th Argeento 🇵🇱 979 49 13ms 8 Oct 2020 358th rucin93 🇵🇱 979 49 12ms 9 Oct 2020 358th JayXon 🇺🇸 979 49 12ms 30 Jan 2021 358th GrayJoKing 🇦🇺 979 49 13ms 17 Feb 2021 358th o0lit3 🇺🇸 979 49 11ms 17 Feb 2021 358th BBoehm 🇩🇪 979 49 11ms 18 Feb 2021 358th emplv 🇱🇻 979 49 9ms 18 Feb 2021 358th Lydxn 🇨🇦 979 49 10ms 15 Jan 2022 358th sisyphus-ppcg 🇦🇺 979 49 10ms 9 Nov 2022 358th sean-niemann 🇺🇸 979 49 11ms 1 Mar 2023 358th Steffan153 🇫🇮 979 49 11ms 5 Mar 2023 358th lukegustafson 🇺🇸 979 49 12ms 17 Nov 2023 358th vlpx 🇫🇮 979 49 11ms 18 Jun 2024 358th targrik 979 49 12ms 7 Jun 2025 358th xsot 🇸🇬 979 49 10ms 31 Jul 2025 375th Steffan153 🇫🇮 975 28 105ms 26 Nov 2022 375th Lydxn 🇨🇦 975 28 101ms 26 Nov 2022 375th nwellnhof 🇩🇪 975 28 102ms 26 Nov 2022 375th GrayJoKing 🇦🇺 975 28 110ms 27 Nov 2022 375th sean-niemann 🇺🇸 975 28 109ms 7 Mar 2025 380th juliansiebert 🇩🇪 971 32 310ms 30 Jul 2022 381st ProtD 968 58 11ms 27 Feb 2018 381st renaudll 968 58 11ms 1 Mar 2018 381st mueller14003 968 58 10ms 7 Apr 2018 381st alexcoda 968 58 11ms 30 Jun 2018 381st kajigga 968 58 11ms 10 Aug 2018 381st TMcBoyle 968 58 10ms 14 Sep 2018 381st toabi 968 58 11ms 21 Aug 2019 381st Edgex42 968 58 10ms 15 Feb 2020 381st DarkTemplar5 968 58 10ms 17 Feb 2020 381st doug-h 968 58 11ms 29 May 2020 381st jakingy 968 58 11ms 8 Jul 2020 381st hjcafaroUC 968 58 10ms 27 Jul 2020 381st Informagier 968 58 10ms 10 Sep 2020 381st garrisonhh 968 58 11ms 22 Nov 2020 381st geofft 968 58 10ms 10 Dec 2020 381st PYRiTEmonark 968 58 10ms 25 Mar 2021 381st Manby 968 58 10ms 7 Jul 2021 381st itsjustfreekie 968 58 10ms 19 Sep 2021 381st MatthiasDurivet 968 58 10ms 30 Sep 2021 381st tetraxile 968 58 11ms 17 Oct 2021 First Prev 321–400 of 5,527 Next Last
