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?
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 542nd adriweb 🇫🇷 949 68 2ms 25 Sep 2023 542nd FlyingPenguin223 949 68 1ms 29 Oct 2023 542nd dokutan 949 68 1ms 18 Nov 2023 542nd xsot 🇸🇬 949 68 1ms 12 Feb 2024 542nd RockOfStone 949 68 1ms 23 Mar 2024 542nd DialFrost 🇸🇬 949 68 1ms 15 Sep 2024 542nd pardouin 🇫🇷 949 68 1ms 21 Sep 2024 542nd sean-niemann 🇺🇸 949 68 1ms 7 Oct 2024 542nd edsrzf 🇳🇿 949 68 2ms 4 Apr 2025 542nd synt7x 🇺🇸 949 68 2ms 5 Jul 2025 542nd fuzzylojik-golf 🇺🇸 949 68 2ms 9 Jul 2025 542nd GolfingSuccess 🇬🇷 949 68 1ms 12 Nov 2025 542nd snoozingnewt 🇨🇦 949 68 1ms 3 Dec 2025 542nd Steffan153 🇫🇮 949 68 2ms 11 Feb 2026 542nd frosster 🇨🇦 949 68 2ms 11 Feb 2026 576th ovs-code 🇩🇪 948 35 79ms 11 Dec 2022 576th sisyphus-ppcg 🇦🇺 948 35 80ms 12 Dec 2022 576th Lydxn 🇨🇦 948 35 84ms 12 Dec 2022 576th prplz 🇦🇺 948 35 81ms 12 Dec 2022 576th clockworknazo 948 35 94ms 12 Dec 2022 576th Steffan153 🇫🇮 948 35 82ms 13 Dec 2022 576th sean-niemann 🇺🇸 948 35 84ms 16 Dec 2022 576th Alessandro-Balconi 🇮🇹 948 35 81ms 26 Dec 2022 576th Shanethegamer 🇺🇸 948 35 80ms 17 May 2023 576th DialFrost 🇸🇬 948 35 81ms 21 Oct 2023 576th snoozingnewt 🇨🇦 948 35 82ms 21 Oct 2023 576th pardouin 🇫🇷 948 35 82ms 15 Aug 2024 588th Shanethegamer 🇺🇸 947 78 125ms 13 Jan 2022 588th JayXon 🇺🇸 947 78 126ms 13 Jan 2022 588th prplz 🇦🇺 947 78 121ms 13 Jan 2022 588th GrayJoKing 🇦🇺 947 78 132ms 13 Jan 2022 588th nipzu 947 78 122ms 13 Jan 2022 588th Lydxn 🇨🇦 947 78 123ms 13 Jan 2022 588th primo-ppcg 🇹🇭 947 78 119ms 14 Jan 2022 588th btnlq 947 78 125ms 14 Jan 2022 588th kumavale 947 78 125ms 14 Jan 2022 588th Bubbler-4 947 78 126ms 26 Jan 2022 588th lynn 947 78 122ms 10 Mar 2022 588th verticallity 947 78 125ms 7 Apr 2022 588th oeb25 947 78 120ms 16 May 2022 588th MeWhenI 🇻🇦 947 78 122ms 16 May 2022 588th gbxdl 947 78 127ms 14 Jun 2022 588th mintyproof 947 78 123ms 7 Sep 2022 588th sean-niemann 🇺🇸 947 78 122ms 25 Sep 2022 588th Steffan153 🇫🇮 947 78 125ms 30 Sep 2022 588th andersk 🇺🇸 947 78 127ms 22 Oct 2022 588th lzahray 947 78 120ms 25 Oct 2022 588th Natanaelel 🇸🇪 947 78 121ms 9 Nov 2022 588th snobee 🇨🇦 947 78 126ms 10 Dec 2022 588th Betuaredead 947 78 131ms 4 Jan 2023 588th Re-Adventures 🇮🇳 947 78 122ms 4 Jan 2023 588th DialFrost 🇸🇬 947 78 124ms 22 Jan 2023 588th kgodara 947 78 133ms 20 Feb 2023 588th StronkCheese 🇺🇸 947 78 140ms 26 Feb 2023 588th klixel 🇨🇦 947 78 125ms 14 Apr 2023 588th dzshn 947 78 126ms 23 Apr 2023 588th Yewzir 🇧🇪 947 78 126ms 17 May 2023 588th ovs-code 🇩🇪 947 78 120ms 20 Jun 2023 588th stefangimmillaro 947 78 125ms 21 Jun 2023 588th Heathcorp 🇦🇺 947 78 130ms 15 Aug 2023 588th The3gs 947 78 125ms 18 Aug 2023 588th elgan65536 🇺🇸 947 78 123ms 21 Sep 2023 588th snoozingnewt 🇨🇦 947 78 121ms 23 Sep 2023 588th msbranicky 947 78 125ms 6 Oct 2023 588th CarsonChr 🇺🇸 947 78 129ms 24 Dec 2023 588th okaponta 947 78 122ms 11 Jan 2024 588th unfinishedprogram 947 78 132ms 3 May 2024 588th Aurel300 🇨🇭 947 78 128ms 5 Jun 2024 588th HumanoidCPU 947 78 131ms 23 Jun 2024 588th madex 🇩🇪 947 78 125ms 9 Jul 2024 588th wuzekai518 947 78 126ms 17 Jul 2024 588th pardouin 🇫🇷 947 78 121ms 18 Jul 2024 588th dokutan 947 78 123ms 13 Aug 2024 588th CaedenHarper 🇨🇦 947 78 117ms 24 Oct 2024 588th edsrzf 🇳🇿 947 78 121ms 16 Nov 2024 588th nullie 947 78 121ms 18 Dec 2024 588th acotis 947 78 124ms 2 Feb 2025 588th emgordon154 947 78 125ms 27 Feb 2025 588th TannerJ07 🇺🇸 947 78 130ms 4 Apr 2025 588th Lv0Sys 🇵🇱 947 78 120ms 31 May 2025 First Prev 561–640 of 5,521 Next Last