The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Odious Numbers 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 475th snoozingnewt 🇨🇦 912 30 825ms 6 days ago 482nd kg583 🇺🇸 912 36 363ms 11 Mar 2024 482nd pardouin 🇫🇷 912 36 395ms 11 Jul 2024 484th Constructor7 912 43 9ms 22 Feb 2018 484th kmaork 🇮🇱 912 43 9ms 18 Apr 2018 484th marcin7Cd 912 43 9ms 3 Sep 2019 484th stu303 912 43 9ms 30 Dec 2020 484th Indivicivet 912 43 9ms 26 Oct 2021 484th MichaelMBradley 🇨🇦 912 43 9ms 29 Mar 2022 484th ZakkkkAttackkkk 🇵🇭 912 43 9ms 27 Jul 2022 484th dzshn 912 43 9ms 24 Aug 2022 484th FlorianCassayre 🇫🇷 912 43 13ms 30 Oct 2022 484th OhmNomNom 912 43 9ms 30 Oct 2022 484th Skwerl23 912 43 10ms 5 Feb 2023 484th 2011-Chan-Ethan 912 43 9ms 9 Jul 2023 484th 1231234md5 🇨🇳 912 43 9ms 12 Dec 2023 484th fourth-bit 912 43 9ms 3 Jul 2024 484th starfihs 912 43 12ms 7 Jul 2024 484th alemelis 912 43 9ms 13 Sep 2024 484th lifthrasiir 🇰🇷 912 43 9ms 12 Nov 2024 484th dirckvdende 912 43 10ms 20 Jul 2025 484th iczelia 🇩🇪 912 43 10ms 16 Oct 2025 503rd pardouin 🇫🇷 911 62 446ms 24 Sep 2025 503rd emgordon154 911 62 397ms 25 Sep 2025 503rd GolfingSuccess 🇬🇷 911 62 431ms 25 Sep 2025 503rd nwellnhof 🇩🇪 911 62 454ms 25 Sep 2025 503rd Yewzir 🇧🇪 911 62 426ms 2 Oct 2025 503rd Apataras 911 62 455ms 7 Oct 2025 503rd MeWhenI 🇻🇦 911 62 417ms 7 Nov 2025 503rd sisyphus-ppcg 🇦🇺 911 62 361ms 22 days ago 503rd ScottHamper 911 62 432ms 18 days ago 512th m-tkach 🇺🇦 911 65 25ms 4 Apr 2022 512th emplv 🇱🇻 911 65 24ms 17 Aug 2022 512th Lydxn 🇨🇦 911 65 25ms 21 Nov 2022 512th Steffan153 🇫🇮 911 65 24ms 17 Feb 2023 512th Shanethegamer 🇺🇸 911 65 24ms 22 Mar 2023 512th sean-niemann 🇺🇸 911 65 25ms 14 Jan 2025 518th saito-ta 🇯🇵 909 36 1ms 23 Jun 2023 519th DialFrost 🇸🇬 909 37 662ms 29 Aug 2025 519th sean-niemann 🇺🇸 909 37 663ms 29 Aug 2025 519th rucin93 🇵🇱 909 37 675ms 29 Aug 2025 519th fuzzylojik-golf 🇺🇸 909 37 663ms 22 Sep 2025 523rd sean-niemann 🇺🇸 908 55 329ms 17 Jun 2023 523rd DialFrost 🇸🇬 908 55 317ms 16 Jan 2024 523rd Steffan153 🇫🇮 908 55 314ms 17 Jan 2024 523rd fuzzylojik-golf 🇺🇸 908 55 368ms 20 Aug 2025 527th Lydxn 🇨🇦 908 61 431ms 27 Feb 2022 527th JayXon 🇺🇸 908 61 448ms 28 Feb 2022 527th sean-niemann 🇺🇸 908 61 438ms 6 Mar 2025 530th Lydxn 🇨🇦 907 41 3ms 16 Jul 2023 531st UnderKoen 🇳🇱 907 58 1ms 6 Jul 2022 531st sisyphus-ppcg 🇦🇺 907 58 1ms 7 Jul 2022 531st m-tkach 🇺🇦 907 58 1ms 8 Mar 2023 531st orthoplex 🇨🇽 907 58 2ms 29 Jun 2023 531st Lydxn 🇨🇦 907 58 1ms 19 Jul 2023 536th Shanethegamer 🇺🇸 906 60 121ms 22 Mar 2023 536th elgan65536 906 60 116ms 4 Apr 2024 538th edsrzf 🇳🇿 905 56 41ms 30 Dec 2024 538th DialFrost 🇸🇬 905 56 41ms 13 Feb 2025 538th zacjl 905 56 41ms 13 Feb 2025 538th kg583 🇺🇸 905 56 41ms 13 Feb 2025 538th pardouin 🇫🇷 905 56 40ms 25 Apr 2025 543rd sisyphus-ppcg 🇦🇺 905 68 1ms 13 May 2022 543rd GolfingSuccess 🇬🇷 905 68 1ms 15 May 2022 543rd MeWhenI 🇻🇦 905 68 1ms 18 May 2022 543rd ovs-code 🇩🇪 905 68 1ms 20 May 2022 543rd inventshah 905 68 1ms 22 May 2022 543rd lynn 905 68 1ms 27 May 2022 543rd saito-ta 🇯🇵 905 68 1ms 9 Jun 2022 543rd nwellnhof 🇩🇪 905 68 1ms 7 Jul 2022 543rd galloj 🇨🇿 905 68 1ms 29 Aug 2022 543rd retrohun 905 68 1ms 1 Jan 2023 543rd Steffan153 🇫🇮 905 68 1ms 28 Jan 2023 543rd sean-niemann 🇺🇸 905 68 1ms 20 May 2023 543rd JayXon 🇺🇸 905 68 1ms 25 May 2023 543rd Lydxn 🇨🇦 905 68 1ms 24 Jun 2023 543rd btnlq 905 68 1ms 24 Jun 2023 543rd dokutan 905 68 1ms 2 Oct 2023 543rd kritixilithos 905 68 1ms 19 May 2024 543rd pardouin 🇫🇷 905 68 1ms 21 Sep 2024 First Prev 481–560 of 4,042 Next Last