The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Odious Numbers (Long) 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 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 Bytes Time Submitted 317th tomtheisen 🇺🇸 917 57 325ms 22 Dec 2022 317th btnlq 917 57 319ms 9 May 2023 317th DialFrost 🇸🇬 917 57 304ms 1 Sep 2023 317th Yewzir 🇧🇪 917 57 329ms 14 Oct 2023 317th Betuaredead 917 57 322ms 12 Nov 2023 317th Herbert00709 🇵🇱 917 57 321ms 22 Dec 2023 317th billings7 🇬🇧 917 57 319ms 21 May 2024 317th pardouin 🇫🇷 917 57 355ms 4 Sep 2024 317th albanian-laundromat 917 57 365ms 30 Sep 2025 330th JPRuskin 🇬🇧 916 29 262ms 30 Apr 2024 331st stefangimmillaro 916 46 77ms 13 Jun 2023 331st JayXon 🇺🇸 916 46 76ms 13 Jun 2023 331st Lydxn 🇨🇦 916 46 78ms 15 Jun 2023 331st sean-niemann 🇺🇸 916 46 78ms 17 Jun 2023 331st Steffan153 🇫🇮 916 46 77ms 13 Mar 2024 331st fuzzylojik-golf 🇺🇸 916 46 77ms 2 Sep 2025 337th m-tkach 🇺🇦 916 49 99ms 13 Oct 2022 337th Lydxn 🇨🇦 916 49 99ms 14 Oct 2022 337th sisyphus-ppcg 🇦🇺 916 49 95ms 14 Oct 2022 337th Steffan153 🇫🇮 916 49 97ms 14 Oct 2022 337th JayXon 🇺🇸 916 49 98ms 14 Oct 2022 337th sean-niemann 🇺🇸 916 49 98ms 14 Oct 2022 337th stefangimmillaro 916 49 102ms 15 Oct 2022 337th emplv 🇱🇻 916 49 99ms 26 Oct 2022 337th Alex-x90 🇺🇸 916 49 98ms 2 Jan 2023 337th DialFrost 🇸🇬 916 49 103ms 26 Sep 2023 337th Betuaredead 916 49 98ms 13 Nov 2023 337th Yewzir 🇧🇪 916 49 98ms 18 Nov 2023 337th pardouin 🇫🇷 916 49 98ms 22 Aug 2024 337th fuzzylojik-golf 🇺🇸 916 49 96ms 13 Sep 2025 337th snoozingnewt 🇨🇦 916 49 103ms 7 days ago 352nd JayXon 🇺🇸 916 72 81ms 6 Sep 2022 352nd nwellnhof 🇩🇪 916 72 66ms 11 Sep 2022 352nd Lydxn 🇨🇦 916 72 75ms 12 Oct 2022 352nd sean-niemann 🇺🇸 916 72 75ms 21 Jun 2023 352nd Steffan153 🇫🇮 916 72 62ms 13 Mar 2024 352nd ovs-code 🇩🇪 916 72 56ms 8 Jun 2024 352nd Herbert00709 🇵🇱 916 72 81ms 12 Jul 2024 352nd MostParsingVex 916 72 73ms 26 Aug 2024 352nd fuzzylojik-golf 🇺🇸 916 72 67ms 20 Aug 2025 361st JayXon 🇺🇸 915 40 125ms 4 Aug 2024 361st Steffan153 🇫🇮 915 40 120ms 4 Aug 2024 361st sean-niemann 🇺🇸 915 40 130ms 4 Aug 2024 361st lukegustafson 🇺🇸 915 40 128ms 5 Aug 2024 361st Lydxn 🇨🇦 915 40 125ms 6 Aug 2024 361st pardouin 🇫🇷 915 40 129ms 23 Aug 2024 361st rucin93 🇵🇱 915 40 125ms 11 Sep 2024 368th DialFrost 🇸🇬 914 63 406ms 24 Sep 2025 368th pardouin 🇫🇷 914 63 407ms 24 Sep 2025 368th emgordon154 914 63 415ms 25 Sep 2025 368th GolfingSuccess 🇬🇷 914 63 471ms 25 Sep 2025 368th nwellnhof 🇩🇪 914 63 509ms 25 Sep 2025 368th Yewzir 🇧🇪 914 63 448ms 2 Oct 2025 368th MeWhenI 🇻🇦 914 63 441ms 7 Nov 2025 375th Lydxn 🇨🇦 913 25 231ms 6 Sep 2022 376th Lydxn 🇨🇦 913 48 13ms 6 Sep 2022 376th JayXon 🇺🇸 913 48 13ms 6 Sep 2022 376th btnlq 913 48 13ms 7 Sep 2022 376th GrayJoKing 🇦🇺 913 48 13ms 7 Sep 2022 376th primo-ppcg 🇹🇭 913 48 13ms 9 Sep 2022 376th IanUtley 913 48 9ms 20 Sep 2022 376th Steffan153 🇫🇮 913 48 13ms 8 Oct 2022 376th annaproxy 913 48 13ms 8 Jan 2023 376th lynn 913 48 12ms 25 Oct 2023 376th HumanEquivalentUnit 913 48 13ms 17 Nov 2023 376th ovs-code 🇩🇪 913 48 13ms 30 Jun 2024 376th sean-niemann 🇺🇸 913 48 13ms 25 Mar 2025 376th DialFrost 🇸🇬 913 48 13ms 10 Apr 2025 376th snoozingnewt 🇨🇦 913 48 14ms 10 days ago 390th Yewzir 🇧🇪 913 49 7ms 11 Dec 2023 390th Shanethegamer 🇺🇸 913 49 7ms 11 Dec 2023 390th Steffan153 🇫🇮 913 49 8ms 11 Dec 2023 390th Lydxn 🇨🇦 913 49 9ms 20 Dec 2023 390th dokutan 913 49 8ms 9 May 2024 390th DialFrost 🇸🇬 913 49 8ms 15 Dec 2024 390th edsrzf 🇳🇿 913 49 7ms 5 Jan 2025 390th zacjl 913 49 8ms 12 Feb 2025 390th sean-niemann 🇺🇸 913 49 7ms 19 Apr 2025 390th kg583 🇺🇸 913 49 10ms 30 Jul 2025 400th stefangimmillaro 913 82 275ms 12 Jun 2023 First Prev 321–400 of 2,509 Next Last