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 321st JayXon 🇺🇸 927 81 283ms 8 Mar 2021 321st Lydxn 🇨🇦 927 81 270ms 25 Mar 2021 321st stefangimmillaro 927 81 271ms 12 Jun 2023 321st sean-niemann 🇺🇸 927 81 267ms 17 Jun 2023 321st Steffan153 🇫🇮 927 81 271ms 7 Feb 2024 321st fuzzylojik-golf 🇺🇸 927 81 264ms 20 Aug 2025 321st KasperKivimaeki 🇫🇮 927 81 254ms 29 Sep 2025 328th Lydxn 🇨🇦 926 34 72ms 16 Jan 2024 329th sisyphus-ppcg 🇦🇺 926 39 120ms 4 Nov 2021 329th JayXon 🇺🇸 926 39 124ms 4 Nov 2021 329th Lydxn 🇨🇦 926 39 123ms 4 Nov 2021 329th primo-ppcg 🇹🇭 926 39 140ms 4 Nov 2021 329th Steffan153 🇫🇮 926 39 122ms 17 Feb 2023 329th steffan-polygolf 926 39 121ms 24 Feb 2023 329th Shanethegamer 🇺🇸 926 39 121ms 22 Mar 2023 329th GrayJoKing 🇦🇺 926 39 124ms 23 Mar 2023 329th MeWhenI 🇻🇦 926 39 120ms 4 Aug 2023 329th stefangimmillaro 926 39 126ms 4 Aug 2023 329th sean-niemann 🇺🇸 926 39 118ms 27 Dec 2024 329th fuzzylojik-golf 🇺🇸 926 39 128ms 5 Sep 2025 341st DialFrost 🇸🇬 926 61 452ms 24 Sep 2025 341st fuzzylojik-golf 🇺🇸 926 61 440ms 24 Sep 2025 341st rucin93 🇵🇱 926 61 853ms 24 Sep 2025 341st namelessiw 926 61 434ms 2 Oct 2025 341st stefangimmillaro 926 61 429ms 6 Oct 2025 341st KasperKivimaeki 🇫🇮 926 61 369ms 17 days ago 347th Steffan153 🇫🇮 925 29 3ms 11 Aug 2024 347th btnlq 925 29 3ms 14 Aug 2024 347th ovs-code 🇩🇪 925 29 3ms 29 Oct 2024 347th sean-niemann 🇺🇸 925 29 3ms 11 Jan 2025 351st primo-ppcg 🇹🇭 925 38 4ms 21 Nov 2019 352nd Attero 🇸🇪 925 56 308ms 21 Nov 2021 352nd btnlq 925 56 305ms 21 Nov 2021 352nd janbehrens 🇩🇪 925 56 307ms 21 Nov 2021 352nd MeWhenI 🇻🇦 925 56 305ms 21 Nov 2021 352nd nwellnhof 🇩🇪 925 56 314ms 21 Nov 2021 352nd primo-ppcg 🇹🇭 925 56 315ms 21 Nov 2021 352nd prplz 🇦🇺 925 56 316ms 21 Nov 2021 352nd Irratix 🇳🇱 925 56 310ms 13 Dec 2021 352nd Giga-Bowser 925 56 309ms 20 Dec 2021 352nd tomtheisen 🇺🇸 925 56 319ms 22 Dec 2022 352nd Yewzir 🇧🇪 925 56 319ms 14 Oct 2023 352nd Betuaredead 925 56 304ms 12 Nov 2023 352nd Herbert00709 🇵🇱 925 56 308ms 22 Dec 2023 352nd billings7 🇬🇧 925 56 312ms 21 May 2024 352nd pardouin 🇫🇷 925 56 385ms 4 Sep 2024 352nd albanian-laundromat 925 56 356ms 30 Sep 2025 368th ovs-code 🇩🇪 924 36 88ms 13 Sep 2023 368th GrayJoKing 🇦🇺 924 36 72ms 14 Sep 2023 368th Lydxn 🇨🇦 924 36 72ms 14 Sep 2023 368th primo-ppcg 🇹🇭 924 36 65ms 15 Sep 2023 368th Steffan153 🇫🇮 924 36 65ms 15 Sep 2023 368th Kacarott 🇦🇺 924 36 71ms 10 Oct 2023 368th MeWhenI 🇻🇦 924 36 71ms 2 Nov 2023 368th Yewzir 🇧🇪 924 36 64ms 7 Mar 2024 368th error256 924 36 71ms 16 May 2024 368th pardouin 🇫🇷 924 36 87ms 24 Aug 2024 368th edsrzf 🇳🇿 924 36 63ms 17 Jan 2025 368th sean-niemann 🇺🇸 924 36 63ms 7 Apr 2025 368th DialFrost 🇸🇬 924 36 63ms 7 Apr 2025 368th Shanethegamer 🇺🇸 924 36 63ms 8 Apr 2025 368th fuzzylojik-golf 🇺🇸 924 36 61ms 17 Sep 2025 383rd stassats 924 47 5ms 28 Apr 2018 383rd primo-ppcg 🇹🇭 924 47 5ms 12 Dec 2018 383rd marcin7Cd 924 47 5ms 6 Feb 2021 383rd AlephSquirrel 924 47 5ms 22 May 2021 383rd Lydxn 🇨🇦 924 47 5ms 11 Oct 2021 383rd Shanethegamer 🇺🇸 924 47 5ms 15 Nov 2021 383rd JayXon 🇺🇸 924 47 5ms 26 Dec 2021 383rd Steffan153 🇫🇮 924 47 5ms 12 Jan 2023 383rd sisyphus-ppcg 🇦🇺 924 47 5ms 6 Feb 2023 383rd ovs-code 🇩🇪 924 47 4ms 11 Mar 2023 383rd syntax-rules 924 47 5ms 15 May 2023 383rd MeWhenI 🇻🇦 924 47 5ms 5 Aug 2023 383rd varhammer 🇷🇺 924 47 5ms 13 Dec 2023 383rd xsot 🇸🇬 924 47 5ms 21 Sep 2024 383rd kg583 🇺🇸 924 47 5ms 5 Oct 2024 383rd DialFrost 🇸🇬 924 47 5ms 6 Dec 2024 383rd edsrzf 🇳🇿 924 47 5ms 6 Dec 2024 383rd CLOStrophobic 🇮🇹 924 47 5ms 17 Jan 2025 First Prev 321–400 of 4,071 Next Last