The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Evil Numbers (Long) 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 401st Shanethegamer 🇺🇸 915 48 8ms 11 Dec 2023 401st Steffan153 🇫🇮 915 48 8ms 11 Dec 2023 401st Lydxn 🇨🇦 915 48 8ms 20 Dec 2023 401st dokutan 915 48 8ms 9 May 2024 401st DialFrost 🇸🇬 915 48 7ms 15 Dec 2024 401st edsrzf 🇳🇿 915 48 7ms 5 Jan 2025 401st zacjl 915 48 8ms 12 Feb 2025 401st sean-niemann 🇺🇸 915 48 7ms 19 Apr 2025 401st kg583 🇺🇸 915 48 9ms 30 Jul 2025 410th JayXon 🇺🇸 915 81 269ms 13 Jun 2023 410th stefangimmillaro 915 81 262ms 13 Jun 2023 410th Lydxn 🇨🇦 915 81 259ms 15 Jun 2023 410th sean-niemann 🇺🇸 915 81 271ms 17 Jun 2023 410th Steffan153 🇫🇮 915 81 253ms 13 Mar 2024 410th fuzzylojik-golf 🇺🇸 915 81 299ms 20 Aug 2025 416th Lydxn 🇨🇦 914 39 40ms 6 Sep 2022 416th marshallward 🇺🇸 914 39 37ms 6 Sep 2022 416th JayXon 🇺🇸 914 39 39ms 6 Sep 2022 416th primo-ppcg 🇹🇭 914 39 39ms 9 Sep 2022 420th edsrzf 🇳🇿 914 58 41ms 30 Dec 2024 420th zacjl 914 58 40ms 13 Feb 2025 420th DialFrost 🇸🇬 914 58 40ms 13 Feb 2025 420th kg583 🇺🇸 914 58 41ms 13 Feb 2025 420th pardouin 🇫🇷 914 58 42ms 25 Apr 2025 425th m-tkach 🇺🇦 913 38 373ms 23 Jan 2024 426th Lydxn 🇨🇦 913 48 13ms 6 Sep 2022 426th JayXon 🇺🇸 913 48 12ms 6 Sep 2022 426th GrayJoKing 🇦🇺 913 48 13ms 7 Sep 2022 426th btnlq 913 48 13ms 7 Sep 2022 426th primo-ppcg 🇹🇭 913 48 13ms 9 Sep 2022 426th IanUtley 913 48 13ms 20 Sep 2022 426th Steffan153 🇫🇮 913 48 13ms 1 Oct 2022 426th annaproxy 913 48 13ms 8 Jan 2023 426th lynn 913 48 13ms 25 Oct 2023 426th HumanEquivalentUnit 913 48 13ms 23 Nov 2023 426th ovs-code 🇩🇪 913 48 13ms 30 Jun 2024 426th sean-niemann 🇺🇸 913 48 14ms 25 Mar 2025 426th DialFrost 🇸🇬 913 48 13ms 10 Apr 2025 426th snoozingnewt 🇨🇦 913 48 13ms 18 days ago 440th MeWhenI 🇻🇦 912 41 9ms 6 Sep 2022 440th dmrichwa 🇺🇸 912 41 8ms 6 Sep 2022 440th inventshah 912 41 9ms 6 Sep 2022 440th GrayJoKing 🇦🇺 912 41 8ms 6 Sep 2022 440th Irratix 🇳🇱 912 41 9ms 7 Sep 2022 440th emplv 🇱🇻 912 41 9ms 7 Sep 2022 440th janbehrens 🇩🇪 912 41 9ms 7 Sep 2022 440th itsh01 912 41 9ms 7 Sep 2022 440th jared-hughes 912 41 8ms 8 Sep 2022 440th nwellnhof 🇩🇪 912 41 9ms 11 Sep 2022 440th stefangimmillaro 912 41 9ms 29 Oct 2022 440th ovs-code 🇩🇪 912 41 9ms 11 Jan 2023 440th AlephSquirrel 912 41 9ms 15 Feb 2023 440th nathanadams 🇳🇿 912 41 9ms 24 Mar 2023 440th thisishowmymindworks 🇳🇴 912 41 10ms 16 May 2023 440th tayloia 🇬🇧 912 41 9ms 17 May 2023 440th Yewzir 🇧🇪 912 41 9ms 14 Oct 2023 440th voytxt 🇨🇿 912 41 8ms 4 Feb 2024 440th two-bad 🇬🇧 912 41 8ms 5 Feb 2024 440th helbling 🇨🇭 912 41 9ms 10 Mar 2024 440th vlpx 🇫🇮 912 41 9ms 1 Aug 2024 440th emgordon154 912 41 8ms 16 Nov 2024 440th targrik 912 41 8ms 14 Feb 2025 440th xsot 🇸🇬 912 41 9ms 31 Jul 2025 440th fuzzylojik-golf 🇺🇸 912 41 10ms 6 Aug 2025 440th sean-niemann 🇺🇸 912 41 2ms 18 Nov 2025 440th rucin93 🇵🇱 912 41 2ms 18 Nov 2025 467th sean-niemann 🇺🇸 912 43 6ms 14 Apr 2024 467th Steffan153 🇫🇮 912 43 7ms 26 Jul 2024 467th xsot 🇸🇬 912 43 4ms 29 Jul 2025 470th nwellnhof 🇩🇪 912 51 2ms 11 Sep 2022 470th inventshah 912 51 2ms 25 Nov 2022 470th emplv 🇱🇻 912 51 2ms 20 Dec 2022 470th GrayJoKing 🇦🇺 912 51 2ms 17 Oct 2023 470th pardouin 🇫🇷 912 51 2ms 31 May 2025 475th Shanethegamer 🇺🇸 911 31 918ms 6 Sep 2022 475th SirBogman 🇺🇸 911 31 985ms 7 Sep 2022 475th primo-ppcg 🇹🇭 911 31 1,001ms 9 Sep 2022 475th inventshah 911 31 1,007ms 27 Sep 2023 475th Yewzir 🇧🇪 911 31 1,050ms 7 Feb 2024 475th edsrzf 🇳🇿 911 31 954ms 17 Jan 2025 First Prev 401–480 of 2,733 Next Last