The Calendar hole will go live in approximately 8 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 712th Irratix 🇳🇱 898 56 366ms 13 Dec 2021 712th Giga-Bowser 898 56 357ms 20 Dec 2021 712th p-vf 🇨🇭 898 56 343ms 16 Jul 2022 712th Yewzir 🇧🇪 898 56 368ms 14 Oct 2023 712th Betuaredead 898 56 323ms 12 Nov 2023 712th Herbert00709 🇵🇱 898 56 337ms 22 Dec 2023 712th billings7 🇬🇧 898 56 365ms 21 May 2024 712th pardouin 🇫🇷 898 56 353ms 4 Sep 2024 712th albanian-laundromat 898 56 365ms 30 Sep 2025 730th pardouin 🇫🇷 898 61 570ms 26 Sep 2025 730th sisyphus-ppcg 🇦🇺 898 61 493ms 27 days ago 730th ScottHamper 898 61 424ms 22 days ago 733rd Steffan153 🇫🇮 898 63 26ms 6 Aug 2024 733rd Lydxn 🇨🇦 898 63 25ms 6 Aug 2024 733rd sean-niemann 🇺🇸 898 63 26ms 19 May 2025 736th Shanethegamer 🇺🇸 897 81 264ms 7 Feb 2024 736th KasperKivimaeki 🇫🇮 897 81 266ms 29 Sep 2025 736th emplv 🇱🇻 897 81 243ms 8 days ago 739th MeWhenI 🇻🇦 896 48 13ms 15 Nov 2021 739th HumanEquivalentUnit 896 48 12ms 4 Jan 2022 739th arjanadriaanse 🇳🇱 896 48 9ms 28 Sep 2023 739th Yewzir 🇧🇪 896 48 13ms 11 Nov 2023 743rd rucin93 🇵🇱 894 37 126ms 28 Aug 2024 744th pardouin 🇫🇷 894 41 3,665ms 31 Oct 2024 744th btnlq 894 41 3,777ms 31 Oct 2024 746th UnderKoen 🇳🇱 894 59 1ms 5 Jul 2022 746th sisyphus-ppcg 🇦🇺 894 59 1ms 7 Jul 2022 746th m-tkach 🇺🇦 894 59 1ms 8 Mar 2023 746th Shanethegamer 🇺🇸 894 59 121ms 22 Mar 2023 746th orthoplex 🇨🇽 894 59 1ms 29 Jun 2023 746th elgan65536 894 59 119ms 4 Apr 2024 752nd kmaork 🇮🇱 893 44 9ms 18 Apr 2018 752nd stevelamm 893 44 9ms 4 Oct 2018 752nd hirosuzuki 893 44 9ms 1 Mar 2019 752nd sk- 893 44 9ms 11 Sep 2019 752nd urojony 🇵🇱 893 44 9ms 26 Dec 2020 752nd Indivicivet 893 44 9ms 26 Oct 2021 752nd dzshn 893 44 9ms 24 Aug 2022 752nd smartiel 893 44 9ms 21 Sep 2022 752nd FlorianCassayre 🇫🇷 893 44 10ms 6 Nov 2022 752nd TaserTheFox 🇺🇸 893 44 9ms 9 Jan 2023 752nd AlexanderFair 893 44 9ms 2 Jul 2023 752nd janeclange 893 44 9ms 13 Nov 2023 752nd namelessiw 893 44 9ms 10 Jan 2024 752nd Anonymousellama21 893 44 9ms 14 Mar 2024 752nd elgan65536 893 44 9ms 4 Apr 2024 752nd wuzekai518 893 44 9ms 17 Jun 2024 752nd lifthrasiir 🇰🇷 893 44 9ms 12 Nov 2024 752nd dirckvdende 893 44 9ms 23 Jul 2025 752nd janlelis 893 44 9ms 16 Aug 2025 771st btnlq 893 45 2ms 12 Sep 2022 771st sisyphus-ppcg 🇦🇺 893 45 2ms 23 Mar 2023 771st fuzzylojik-golf 🇺🇸 893 45 6ms 4 Sep 2025 774th sisyphus-ppcg 🇦🇺 891 40 2ms 10 Jun 2021 774th lynn 891 40 2ms 18 Nov 2021 774th steffan-polygolf 891 40 2ms 24 Feb 2023 774th xsot 🇸🇬 891 40 2ms 21 Oct 2023 774th synt7x 🇺🇸 891 40 2ms 14 Jul 2025 774th fuzzylojik-golf 🇺🇸 891 40 1ms 2 Sep 2025 780th GrayJoKing 🇦🇺 890 38 1ms 9 Oct 2023 781st MeWhenI 🇻🇦 890 46 5ms 16 Dec 2024 782nd nwellnhof 🇩🇪 889 72 52ms 3 Jan 2022 782nd primo-ppcg 🇹🇭 889 72 49ms 18 Jan 2022 782nd Shanethegamer 🇺🇸 889 72 66ms 3 Apr 2023 782nd DialFrost 🇸🇬 889 72 68ms 16 Jan 2024 782nd ovs-code 🇩🇪 889 72 68ms 8 Jun 2024 782nd Herbert00709 🇵🇱 889 72 59ms 12 Jul 2024 782nd MostParsingVex 889 72 81ms 26 Aug 2024 782nd fuzzylojik-golf 🇺🇸 889 72 66ms 20 Aug 2025 782nd 09cf 889 72 64ms 27 days ago 791st primo-ppcg 🇹🇭 888 53 115ms 3 Jul 2019 791st marcin7Cd 888 53 119ms 13 Mar 2020 791st ssiquoya 🇷🇺 888 53 116ms 12 Jun 2021 791st GrayJoKing 🇦🇺 888 53 1ms 6 Jul 2021 791st emplv 🇱🇻 888 53 1ms 28 Apr 2022 791st inventshah 888 53 2ms 12 Jun 2022 791st Irratix 🇳🇱 888 53 1ms 13 Jun 2022 791st michael-pruglo 🇺🇦 888 53 1ms 14 Jul 2022 791st Alex-x90 🇺🇸 888 53 1ms 29 Jul 2022 791st Shanethegamer 🇺🇸 888 53 119ms 22 Mar 2023 First Prev 721–800 of 4,994 Next Last