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 636th Herbert00709 🇵🇱 896 71 67ms 12 Jul 2024 636th MostParsingVex 896 71 70ms 26 Aug 2024 636th fuzzylojik-golf 🇺🇸 896 71 60ms 20 Aug 2025 644th pardouin 🇫🇷 895 42 3,778ms 31 Oct 2024 644th btnlq 895 42 4,121ms 31 Oct 2024 646th sisyphus-ppcg 🇦🇺 894 41 1ms 10 Jun 2021 646th lynn 894 41 1ms 18 Nov 2021 646th jared-hughes 894 41 1ms 16 Feb 2022 646th steffan-polygolf 894 41 1ms 24 Feb 2023 646th GrayJoKing 🇦🇺 894 41 2ms 23 Mar 2023 646th xsot 🇸🇬 894 41 2ms 21 Oct 2023 646th synt7x 🇺🇸 894 41 1ms 14 Jul 2025 646th fuzzylojik-golf 🇺🇸 894 41 1ms 2 Sep 2025 654th Attero 🇸🇪 892 56 308ms 21 Nov 2021 654th janbehrens 🇩🇪 892 56 307ms 21 Nov 2021 654th MeWhenI 🇻🇦 892 56 305ms 21 Nov 2021 654th primo-ppcg 🇹🇭 892 56 315ms 21 Nov 2021 654th prplz 🇦🇺 892 56 316ms 21 Nov 2021 654th Irratix 🇳🇱 892 56 310ms 13 Dec 2021 654th Giga-Bowser 892 56 309ms 20 Dec 2021 654th Yewzir 🇧🇪 892 56 319ms 14 Oct 2023 654th Betuaredead 892 56 304ms 12 Nov 2023 654th Herbert00709 🇵🇱 892 56 308ms 22 Dec 2023 654th billings7 🇬🇧 892 56 312ms 21 May 2024 654th pardouin 🇫🇷 892 56 385ms 4 Sep 2024 654th albanian-laundromat 892 56 356ms 30 Sep 2025 667th RYNO8 891 44 9ms 28 Aug 2021 667th MeWhenI 🇻🇦 891 44 5ms 16 Dec 2024 669th wuzekai518 891 61 119ms 25 Jun 2024 669th Babafaba 891 61 115ms 11 Oct 2025 671st m-tkach 🇺🇦 887 37 376ms 23 Jan 2024 672nd sisyphus-ppcg 🇦🇺 885 28 2ms 4 Feb 2022 672nd HPWiz 🇳🇿 885 28 3ms 12 May 2024 672nd saito-ta 🇯🇵 885 28 3ms 20 Aug 2025 675th Steffan153 🇫🇮 885 37 2ms 5 Aug 2024 676th Lydxn 🇨🇦 885 65 25ms 13 Jan 2023 676th Shanethegamer 🇺🇸 885 65 27ms 22 Mar 2023 676th lynn 885 65 26ms 11 Jul 2023 676th GrayJoKing 🇦🇺 885 65 25ms 11 Aug 2023 676th m-tkach 🇺🇦 885 65 25ms 11 Aug 2023 681st prplz 🇦🇺 884 53 1ms 6 Mar 2019 681st Attero 🇸🇪 884 53 1ms 26 Apr 2020 681st janbehrens 🇩🇪 884 53 2ms 26 Sep 2020 681st m-tkach 🇺🇦 884 53 1ms 5 Oct 2021 681st MeWhenI 🇻🇦 884 53 5ms 13 Oct 2021 681st solmyr2000 884 53 1ms 20 Jun 2022 681st jared-hughes 884 53 1ms 8 Sep 2022 681st AlephSquirrel 884 53 1ms 7 Jan 2023 681st emgordon154 884 53 1ms 25 Nov 2024 681st kaurakeksi 🇫🇮 884 53 2ms 1 Jan 2025 691st JOrE20 🇺🇸 884 67 25ms 5 days ago 692nd m-tkach 🇺🇦 884 72 85ms 2 Jan 2022 692nd Irratix 🇳🇱 884 72 72ms 3 Jan 2022 692nd inventshah 884 72 74ms 18 Jan 2022 692nd MeWhenI 🇻🇦 884 72 83ms 8 May 2022 692nd solmyr2000 884 72 65ms 20 Jun 2022 692nd michael-pruglo 🇺🇦 884 72 67ms 14 Jul 2022 692nd Alex-x90 🇺🇸 884 72 68ms 30 Jul 2022 692nd jared-hughes 884 72 64ms 8 Sep 2022 692nd Yewzir 🇧🇪 884 72 75ms 14 Oct 2023 692nd Betuaredead 884 72 73ms 12 Nov 2023 692nd Mandrzejy 🇵🇱 884 72 70ms 14 Apr 2024 692nd pardouin 🇫🇷 884 72 83ms 23 Aug 2024 692nd rucin93 🇵🇱 884 72 62ms 14 Apr 2025 705th dpatterbee 883 84 261ms 20 Aug 2020 705th janbehrens 🇩🇪 883 84 272ms 12 Jun 2021 705th sisyphus-ppcg 🇦🇺 883 84 263ms 14 Jun 2021 705th albanian-laundromat 883 84 271ms 15 days ago 709th sisyphus-ppcg 🇦🇺 882 23 186ms 9 May 2021 709th prplz 🇦🇺 882 23 250ms 9 May 2021 709th primo-ppcg 🇹🇭 882 23 132ms 10 May 2021 712th Irratix 🇳🇱 882 31 943ms 25 Mar 2021 712th MeWhenI 🇻🇦 882 31 841ms 5 Aug 2023 712th anter69 🇭🇺 882 31 1,023ms 10 Mar 2025 715th Yax42 🇫🇷 882 64 425ms 10 Oct 2025 715th Babafaba 882 64 442ms 11 Oct 2025 717th sisyphus-ppcg 🇦🇺 880 39 120ms 4 Nov 2021 717th steffan-polygolf 880 39 121ms 24 Feb 2023 717th Shanethegamer 🇺🇸 880 39 121ms 22 Mar 2023 717th GrayJoKing 🇦🇺 880 39 124ms 23 Mar 2023 First Prev 641–720 of 4,042 Next Last