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 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 961st NewDefectus 🇮🇱 854 42 9ms 10 Feb 2021 961st Shingyx 854 42 9ms 11 Apr 2021 961st pcomerford 854 42 8ms 12 Jun 2022 961st Shanethegamer 🇺🇸 854 42 8ms 22 Mar 2023 961st duckyluuk 🇳🇱 854 42 9ms 4 Oct 2024 961st luuumine 🇫🇷 854 42 9ms 28 Oct 2025 961st JOrE20 🇺🇸 854 42 9ms 5 days ago 968th stefangimmillaro 854 44 3,503ms 28 Oct 2024 969th SirBogman 🇺🇸 853 27 111ms 4 Jun 2022 970th 4hg 🇺🇸 853 39 70ms 14 Sep 2023 970th chunes3 🇺🇸 853 39 62ms 14 Sep 2023 970th gifti258 853 39 71ms 15 Sep 2023 970th GolfingSuccess 🇬🇷 853 39 73ms 18 Sep 2023 974th LucaArgentiUCF 🇮🇹 853 42 38ms 14 Feb 2021 974th snoozingnewt 🇨🇦 853 42 40ms 6 days ago 976th argusdusty 🇺🇸 853 88 275ms 26 Dec 2020 977th DialFrost 🇸🇬 852 41 129ms 8 Jan 2025 978th Shanethegamer 🇺🇸 852 43 1ms 22 Mar 2023 978th Babafaba 852 43 2ms 11 Oct 2025 980th Sakaala 852 46 16ms 23 Apr 2019 980th KatieLG 🇬🇧 852 46 9ms 26 Oct 2020 980th rak1507 🇬🇧 852 46 15ms 10 May 2021 980th clementblaudeau 852 46 15ms 28 May 2021 980th minhtrancccp 852 46 9ms 25 Oct 2021 980th face0xff 852 46 16ms 26 Nov 2021 980th firegene 🇮🇪 852 46 10ms 6 Dec 2021 980th jmerle 🇳🇱 852 46 9ms 22 Jan 2022 980th CedricGebistorf 852 46 9ms 18 Feb 2022 980th Bonjour27891 🇻🇳 852 46 15ms 19 Feb 2022 980th trag1c 🇵🇱 852 46 9ms 12 Apr 2022 980th tkr-sh 🇰🇵 852 46 9ms 16 Apr 2022 980th Ailko 🇧🇪 852 46 17ms 6 May 2022 980th TheSmilingTurtle 852 46 9ms 13 May 2022 980th pochmann 852 46 16ms 17 May 2022 980th twocatsinatrenchcoat 852 46 9ms 4 Jun 2022 980th aonkeeper4 852 46 9ms 3 Jul 2022 980th tri1212 🇻🇳 852 46 16ms 17 Jul 2022 980th 051 🇸🇬 852 46 16ms 7 Aug 2022 980th domingues 🇵🇹 852 46 9ms 10 Aug 2022 980th Eilonlif 🇮🇱 852 46 15ms 26 Aug 2022 980th suwat513 852 46 9ms 13 Sep 2022 980th smartiel 852 46 9ms 21 Sep 2022 980th 5quiwyrm 852 46 9ms 21 Sep 2022 980th Andriamanitra 🇫🇮 852 46 16ms 22 Sep 2022 980th abba23 852 46 16ms 23 Sep 2022 980th Mikey-Beep 🇬🇧 852 46 9ms 1 Oct 2022 980th jakobkordez 🇸🇮 852 46 9ms 13 Oct 2022 980th QuincyNash 🇺🇸 852 46 9ms 6 Dec 2022 980th joll05 🇸🇪 852 46 9ms 17 Dec 2022 980th cefqrn 852 46 9ms 20 Dec 2022 980th randolchance 852 46 16ms 21 Dec 2022 980th TaserTheFox 🇺🇸 852 46 8ms 9 Jan 2023 980th Ripick 852 46 15ms 1 Feb 2023 980th SirFireball3521 852 46 9ms 4 Feb 2023 980th gareth-kmet 852 46 10ms 2 Mar 2023 980th quimey 852 46 9ms 6 Mar 2023 980th 4ndyJ 🇬🇧 852 46 9ms 20 Mar 2023 980th vishwathg 852 46 9ms 2 Apr 2023 980th kellantech 852 46 15ms 11 Jun 2023 980th rollershutter 852 46 10ms 24 Jun 2023 980th msbranicky 852 46 11ms 2 Jul 2023 980th Re-Adventures 🇮🇳 852 46 9ms 20 Jul 2023 980th 5cw 🇺🇸 852 46 10ms 1 Aug 2023 980th Nic0M 852 46 9ms 13 Aug 2023 980th yourlefthandman 852 46 15ms 17 Aug 2023 980th PatrickStephansen 🇿🇦 852 46 9ms 23 Aug 2023 980th ListeriaM 852 46 15ms 25 Aug 2023 980th cros107 🇦🇺 852 46 16ms 18 Sep 2023 980th m42km 852 46 9ms 12 Oct 2023 980th Azearia 852 46 9ms 23 Oct 2023 980th boboquack 852 46 17ms 18 Nov 2023 980th gidHog 852 46 9ms 20 Nov 2023 980th ben-j-herbertz 852 46 9ms 20 Nov 2023 980th logvp 852 46 9ms 28 Dec 2023 980th smokestacklightnin 🇺🇸 852 46 10ms 9 Jan 2024 980th Dataen 852 46 15ms 15 Jan 2024 980th dokutan 852 46 9ms 15 Jan 2024 980th jatloe 852 46 15ms 28 Jan 2024 980th RobertHoeh 852 46 16ms 1 Feb 2024 980th NickTheEASDude 🇺🇸 852 46 16ms 1 Feb 2024 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