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 545th GoateSo 949 68 1ms 14 Aug 2023 545th jipsong 🇩🇪 949 68 2ms 28 Aug 2023 545th jacobly0 🇺🇸 949 68 2ms 30 Aug 2023 545th adriweb 🇫🇷 949 68 2ms 25 Sep 2023 545th FlyingPenguin223 949 68 1ms 29 Oct 2023 545th dokutan 949 68 1ms 18 Nov 2023 545th xsot 🇸🇬 949 68 1ms 12 Feb 2024 545th RockOfStone 949 68 1ms 23 Mar 2024 545th DialFrost 🇸🇬 949 68 1ms 15 Sep 2024 545th pardouin 🇫🇷 949 68 1ms 21 Sep 2024 545th sean-niemann 🇺🇸 949 68 1ms 7 Oct 2024 545th edsrzf 🇳🇿 949 68 2ms 4 Apr 2025 545th synt7x 🇺🇸 949 68 2ms 5 Jul 2025 545th fuzzylojik-golf 🇺🇸 949 68 2ms 9 Jul 2025 545th GolfingSuccess 🇬🇷 949 68 1ms 12 Nov 2025 545th snoozingnewt 🇨🇦 949 68 1ms 3 Dec 2025 545th Steffan153 🇫🇮 949 68 2ms 11 Feb 2026 545th frosster 🇨🇦 949 68 2ms 11 Feb 2026 579th ovs-code 🇩🇪 948 35 79ms 11 Dec 2022 579th sisyphus-ppcg 🇦🇺 948 35 80ms 12 Dec 2022 579th Lydxn 🇨🇦 948 35 84ms 12 Dec 2022 579th prplz 🇦🇺 948 35 81ms 12 Dec 2022 579th clockworknazo 948 35 94ms 12 Dec 2022 579th Steffan153 🇫🇮 948 35 82ms 13 Dec 2022 579th sean-niemann 🇺🇸 948 35 84ms 16 Dec 2022 579th Alessandro-Balconi 🇮🇹 948 35 81ms 26 Dec 2022 579th Shanethegamer 🇺🇸 948 35 80ms 17 May 2023 579th DialFrost 🇸🇬 948 35 81ms 21 Oct 2023 579th snoozingnewt 🇨🇦 948 35 82ms 21 Oct 2023 579th pardouin 🇫🇷 948 35 82ms 15 Aug 2024 591st Shanethegamer 🇺🇸 947 78 134ms 13 Jan 2022 591st JayXon 🇺🇸 947 78 127ms 13 Jan 2022 591st prplz 🇦🇺 947 78 129ms 13 Jan 2022 591st GrayJoKing 🇦🇺 947 78 124ms 13 Jan 2022 591st nipzu 947 78 122ms 13 Jan 2022 591st Lydxn 🇨🇦 947 78 117ms 13 Jan 2022 591st primo-ppcg 🇹🇭 947 78 124ms 14 Jan 2022 591st btnlq 947 78 133ms 14 Jan 2022 591st kumavale 947 78 124ms 14 Jan 2022 591st Bubbler-4 947 78 126ms 26 Jan 2022 591st lynn 947 78 121ms 10 Mar 2022 591st verticallity 947 78 124ms 7 Apr 2022 591st oeb25 947 78 120ms 16 May 2022 591st MeWhenI 🇻🇦 947 78 123ms 16 May 2022 591st gbxdl 947 78 127ms 14 Jun 2022 591st mintyproof 947 78 121ms 7 Sep 2022 591st sean-niemann 🇺🇸 947 78 116ms 25 Sep 2022 591st Steffan153 🇫🇮 947 78 120ms 30 Sep 2022 591st andersk 🇺🇸 947 78 136ms 22 Oct 2022 591st lzahray 947 78 130ms 25 Oct 2022 591st Natanaelel 🇸🇪 947 78 119ms 9 Nov 2022 591st snobee 🇨🇦 947 78 126ms 10 Dec 2022 591st Betuaredead 947 78 125ms 4 Jan 2023 591st Re-Adventures 🇮🇳 947 78 116ms 4 Jan 2023 591st DialFrost 🇸🇬 947 78 121ms 22 Jan 2023 591st kgodara 947 78 133ms 20 Feb 2023 591st StronkCheese 🇺🇸 947 78 132ms 26 Feb 2023 591st klixel 🇨🇦 947 78 125ms 14 Apr 2023 591st dzshn 947 78 132ms 23 Apr 2023 591st Yewzir 🇧🇪 947 78 124ms 17 May 2023 591st ovs-code 🇩🇪 947 78 123ms 20 Jun 2023 591st stefangimmillaro 947 78 126ms 21 Jun 2023 591st Heathcorp 🇦🇺 947 78 119ms 15 Aug 2023 591st The3gs 947 78 130ms 18 Aug 2023 591st elgan65536 🇺🇸 947 78 130ms 21 Sep 2023 591st snoozingnewt 🇨🇦 947 78 130ms 23 Sep 2023 591st msbranicky 947 78 118ms 6 Oct 2023 591st CarsonChr 🇺🇸 947 78 128ms 24 Dec 2023 591st okaponta 947 78 121ms 11 Jan 2024 591st unfinishedprogram 947 78 126ms 3 May 2024 591st Aurel300 🇨🇭 947 78 129ms 5 Jun 2024 591st HumanoidCPU 947 78 137ms 23 Jun 2024 591st madex 🇩🇪 947 78 119ms 9 Jul 2024 591st wuzekai518 947 78 127ms 17 Jul 2024 591st pardouin 🇫🇷 947 78 119ms 18 Jul 2024 591st dokutan 947 78 136ms 13 Aug 2024 591st CaedenHarper 🇨🇦 947 78 120ms 24 Oct 2024 591st edsrzf 🇳🇿 947 78 121ms 16 Nov 2024 591st nullie 947 78 130ms 18 Dec 2024 591st acotis 947 78 129ms 2 Feb 2025 First Prev 561–640 of 5,526 Next Last