The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Evil 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 717th nathanadams 🇳🇿 897 56 351ms 21 Nov 2021 717th primo-ppcg 🇹🇭 897 56 376ms 21 Nov 2021 717th prplz 🇦🇺 897 56 379ms 21 Nov 2021 717th ScottHamper 897 56 355ms 21 Nov 2021 717th sisyphus-ppcg 🇦🇺 897 56 356ms 21 Nov 2021 717th Irratix 🇳🇱 897 56 366ms 13 Dec 2021 717th Giga-Bowser 897 56 357ms 20 Dec 2021 717th p-vf 🇨🇭 897 56 343ms 16 Jul 2022 717th Yewzir 🇧🇪 897 56 368ms 14 Oct 2023 717th Betuaredead 897 56 323ms 12 Nov 2023 717th Herbert00709 🇵🇱 897 56 337ms 22 Dec 2023 717th billings7 🇬🇧 897 56 365ms 21 May 2024 717th pardouin 🇫🇷 897 56 353ms 4 Sep 2024 717th albanian-laundromat 897 56 365ms 30 Sep 2025 735th Shanethegamer 🇺🇸 897 81 264ms 7 Feb 2024 735th KasperKivimaeki 🇫🇮 897 81 266ms 29 Sep 2025 735th emplv 🇱🇻 897 81 243ms 3 days ago 738th MeWhenI 🇻🇦 896 48 13ms 15 Nov 2021 738th HumanEquivalentUnit 896 48 12ms 4 Jan 2022 738th arjanadriaanse 🇳🇱 896 48 9ms 28 Sep 2023 738th Yewzir 🇧🇪 896 48 13ms 11 Nov 2023 742nd rucin93 🇵🇱 894 37 126ms 28 Aug 2024 743rd pardouin 🇫🇷 894 41 3,665ms 31 Oct 2024 743rd btnlq 894 41 3,777ms 31 Oct 2024 745th UnderKoen 🇳🇱 894 59 1ms 5 Jul 2022 745th sisyphus-ppcg 🇦🇺 894 59 1ms 7 Jul 2022 745th m-tkach 🇺🇦 894 59 1ms 8 Mar 2023 745th Shanethegamer 🇺🇸 894 59 121ms 22 Mar 2023 745th orthoplex 🇨🇽 894 59 1ms 29 Jun 2023 745th elgan65536 894 59 119ms 4 Apr 2024 751st kmaork 🇮🇱 893 44 9ms 18 Apr 2018 751st stevelamm 893 44 9ms 4 Oct 2018 751st hirosuzuki 893 44 9ms 1 Mar 2019 751st sk- 893 44 9ms 11 Sep 2019 751st urojony 🇵🇱 893 44 9ms 26 Dec 2020 751st Indivicivet 893 44 9ms 26 Oct 2021 751st dzshn 893 44 9ms 24 Aug 2022 751st smartiel 893 44 9ms 21 Sep 2022 751st FlorianCassayre 🇫🇷 893 44 10ms 6 Nov 2022 751st TaserTheFox 🇺🇸 893 44 9ms 9 Jan 2023 751st AlexanderFair 893 44 9ms 2 Jul 2023 751st janeclange 893 44 9ms 13 Nov 2023 751st namelessiw 893 44 9ms 10 Jan 2024 751st Anonymousellama21 893 44 9ms 14 Mar 2024 751st elgan65536 893 44 9ms 4 Apr 2024 751st wuzekai518 893 44 9ms 17 Jun 2024 751st lifthrasiir 🇰🇷 893 44 9ms 12 Nov 2024 751st dirckvdende 893 44 9ms 23 Jul 2025 751st janlelis 893 44 9ms 16 Aug 2025 770th btnlq 893 45 2ms 12 Sep 2022 770th sisyphus-ppcg 🇦🇺 893 45 2ms 23 Mar 2023 770th fuzzylojik-golf 🇺🇸 893 45 6ms 4 Sep 2025 773rd sisyphus-ppcg 🇦🇺 892 40 1ms 10 Jun 2021 773rd lynn 892 40 1ms 18 Nov 2021 773rd steffan-polygolf 892 40 1ms 24 Feb 2023 773rd xsot 🇸🇬 892 40 1ms 21 Oct 2023 773rd synt7x 🇺🇸 892 40 1ms 14 Jul 2025 773rd fuzzylojik-golf 🇺🇸 892 40 1ms 2 Sep 2025 779th GrayJoKing 🇦🇺 890 38 1ms 9 Oct 2023 780th MeWhenI 🇻🇦 890 46 5ms 16 Dec 2024 781st nwellnhof 🇩🇪 889 72 52ms 3 Jan 2022 781st primo-ppcg 🇹🇭 889 72 49ms 18 Jan 2022 781st Shanethegamer 🇺🇸 889 72 66ms 3 Apr 2023 781st DialFrost 🇸🇬 889 72 68ms 16 Jan 2024 781st ovs-code 🇩🇪 889 72 68ms 8 Jun 2024 781st Herbert00709 🇵🇱 889 72 59ms 12 Jul 2024 781st MostParsingVex 889 72 81ms 26 Aug 2024 781st fuzzylojik-golf 🇺🇸 889 72 66ms 20 Aug 2025 781st 09cf 889 72 64ms 23 days ago 790th GrayJoKing 🇦🇺 888 53 1ms 6 Jul 2021 790th emplv 🇱🇻 888 53 1ms 28 Apr 2022 790th inventshah 888 53 2ms 12 Jun 2022 790th Irratix 🇳🇱 888 53 1ms 13 Jun 2022 790th michael-pruglo 🇺🇦 888 53 1ms 14 Jul 2022 790th Alex-x90 🇺🇸 888 53 1ms 29 Jul 2022 790th stefangimmillaro 888 53 1ms 12 Jun 2023 790th Yewzir 🇧🇪 888 53 1ms 14 Oct 2023 790th Betuaredead 888 53 1ms 11 Nov 2023 790th Mandrzejy 🇵🇱 888 53 2ms 14 Apr 2024 790th pardouin 🇫🇷 888 53 2ms 29 Sep 2024 First Prev 721–800 of 4,991 Next Last