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 229th thisishowmymindworks 🇳🇴 932 40 9ms 26 May 2023 229th biocommando 🇫🇮 932 40 9ms 19 Aug 2023 229th Yewzir 🇧🇪 932 40 9ms 14 Oct 2023 229th Betuaredead 932 40 9ms 13 Nov 2023 229th two-bad 🇬🇧 932 40 9ms 5 Feb 2024 229th vlpx 🇫🇮 932 40 9ms 1 Aug 2024 229th pardouin 🇫🇷 932 40 9ms 23 Aug 2024 229th emgordon154 932 40 8ms 16 Nov 2024 229th fuzzylojik-golf 🇺🇸 932 40 9ms 6 Aug 2025 250th primo-ppcg 🇹🇭 929 46 2ms 11 Aug 2023 250th JayXon 🇺🇸 929 46 2ms 11 Aug 2023 250th Lydxn 🇨🇦 929 46 2ms 12 Aug 2023 253rd KasperKivimaeki 🇫🇮 929 71 71ms 25 Aug 2025 254th Lydxn 🇨🇦 928 36 2ms 13 May 2024 255th AdrienHache 🇫🇷 928 43 28ms 20 hours ago 256th JayXon 🇺🇸 928 62 420ms 24 Sep 2025 256th fuzzylojik-golf 🇺🇸 928 62 440ms 24 Sep 2025 256th sean-niemann 🇺🇸 928 62 519ms 24 Sep 2025 256th namelessiw 928 62 440ms 2 Oct 2025 256th stefangimmillaro 928 62 389ms 6 Oct 2025 256th KasperKivimaeki 🇫🇮 928 62 404ms 17 days ago 256th Lydxn 🇨🇦 928 62 341ms 6 days ago 263rd Lydxn 🇨🇦 927 52 2ms 6 Sep 2022 263rd primo-ppcg 🇹🇭 927 52 2ms 9 Sep 2022 263rd sean-niemann 🇺🇸 927 52 2ms 27 Feb 2023 263rd Steffan153 🇫🇮 927 52 2ms 6 Mar 2023 263rd rucin93 🇵🇱 927 52 2ms 18 Oct 2023 263rd orthoplex 🇨🇽 927 52 2ms 14 Apr 2024 263rd KasperKivimaeki 🇫🇮 927 52 2ms 19 Dec 2024 270th JayXon 🇺🇸 925 61 119ms 7 Sep 2022 270th kumavale 925 61 123ms 29 Oct 2025 272nd GrayJoKing 🇦🇺 924 36 76ms 7 Sep 2022 272nd primo-ppcg 🇹🇭 924 36 61ms 9 Sep 2022 272nd Lydxn 🇨🇦 924 36 86ms 15 Jul 2023 275th Lydxn 🇨🇦 923 36 74ms 12 Dec 2022 276th ovs-code 🇩🇪 922 39 72ms 12 Sep 2024 276th GrayJoKing 🇦🇺 922 39 67ms 13 Sep 2024 276th Kacarott 🇦🇺 922 39 69ms 13 Sep 2024 276th error256 922 39 67ms 13 Sep 2024 276th pardouin 🇫🇷 922 39 62ms 13 Sep 2024 276th edsrzf 🇳🇿 922 39 69ms 25 Sep 2024 276th Shanethegamer 🇺🇸 922 39 74ms 22 Nov 2024 276th primo-ppcg 🇹🇭 922 39 66ms 5 Apr 2025 276th MeWhenI 🇻🇦 922 39 67ms 5 Apr 2025 276th sean-niemann 🇺🇸 922 39 66ms 7 Apr 2025 276th DialFrost 🇸🇬 922 39 67ms 8 Apr 2025 276th fuzzylojik-golf 🇺🇸 922 39 72ms 17 Sep 2025 288th Lydxn 🇨🇦 922 54 124ms 6 Sep 2022 288th HPWiz 🇳🇿 922 54 125ms 6 Sep 2022 288th lynn 922 54 125ms 6 Sep 2022 288th xnor-gate 922 54 127ms 13 Sep 2022 288th henkma 922 54 222ms 30 May 2023 293rd saltysylvi 921 21 34ms 11 Oct 2022 293rd stackofbears 921 21 32ms 14 Mar 2025 295th Shanethegamer 🇺🇸 919 48 9ms 6 Sep 2022 295th Lydxn 🇨🇦 919 48 8ms 6 Sep 2022 295th JayXon 🇺🇸 919 48 8ms 6 Sep 2022 295th primo-ppcg 🇹🇭 919 48 8ms 9 Sep 2022 295th AlephSquirrel 919 48 8ms 7 Jan 2023 295th Steffan153 🇫🇮 919 48 8ms 12 Jan 2023 295th sisyphus-ppcg 🇦🇺 919 48 8ms 6 Feb 2023 295th ovs-code 🇩🇪 919 48 8ms 11 Mar 2023 295th syntax-rules 919 48 8ms 15 May 2023 295th MeWhenI 🇻🇦 919 48 8ms 5 Aug 2023 295th varhammer 🇷🇺 919 48 8ms 11 Jan 2024 295th xsot 🇸🇬 919 48 8ms 21 Sep 2024 295th kg583 🇺🇸 919 48 8ms 5 Oct 2024 295th DialFrost 🇸🇬 919 48 8ms 6 Dec 2024 295th edsrzf 🇳🇿 919 48 8ms 6 Dec 2024 295th CLOStrophobic 🇮🇹 919 48 8ms 17 Jan 2025 295th zacjl 919 48 8ms 14 Feb 2025 295th pardouin 🇫🇷 919 48 8ms 21 Mar 2025 295th sean-niemann 🇺🇸 919 48 8ms 17 Apr 2025 295th fuzzylojik-golf 🇺🇸 919 48 8ms 6 Aug 2025 315th AdrienHache 🇫🇷 917 36 47ms 12 Jan 2024 315th lyphyser 917 36 51ms 12 Jan 2024 317th MeWhenI 🇻🇦 917 57 307ms 7 Sep 2022 317th janbehrens 🇩🇪 917 57 306ms 7 Sep 2022 317th primo-ppcg 🇹🇭 917 57 306ms 9 Sep 2022 317th nwellnhof 🇩🇪 917 57 330ms 11 Sep 2022 First Prev 241–320 of 2,509 Next Last