The Calendar hole will go live in approximately 5 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 877th Yax42 🇫🇷 877 41 9ms 5 Sep 2025 882nd prplz 🇦🇺 877 73 58ms 1 Jan 2022 882nd Irratix 🇳🇱 877 73 54ms 3 Jan 2022 882nd inventshah 877 73 55ms 18 Jan 2022 882nd MeWhenI 🇻🇦 877 73 58ms 8 May 2022 882nd solmyr2000 877 73 58ms 20 Jun 2022 882nd m-tkach 🇺🇦 877 73 58ms 26 Jun 2022 882nd michael-pruglo 🇺🇦 877 73 55ms 13 Jul 2022 882nd Alex-x90 🇺🇸 877 73 60ms 30 Jul 2022 882nd jared-hughes 877 73 55ms 8 Sep 2022 882nd janbehrens 🇩🇪 877 73 53ms 20 Nov 2022 882nd Yewzir 🇧🇪 877 73 59ms 14 Oct 2023 882nd Betuaredead 877 73 61ms 12 Nov 2023 882nd Mandrzejy 🇵🇱 877 73 59ms 14 Apr 2024 882nd pardouin 🇫🇷 877 73 59ms 23 Aug 2024 896th sisyphus-ppcg 🇦🇺 875 83 265ms 14 Jun 2021 897th Lydxn 🇨🇦 875 94 1,789ms 22 Apr 2024 897th JayXon 🇺🇸 875 94 1,792ms 22 Apr 2024 899th DialFrost 🇸🇬 875 111 436ms 12 Jan 2025 899th GolfingSuccess 🇬🇷 875 111 427ms 12 Jan 2025 899th emgordon154 875 111 451ms 12 Jan 2025 899th Shanethegamer 🇺🇸 875 111 476ms 13 Jan 2025 899th dokutan 875 111 489ms 13 Jan 2025 899th KatieLG 🇬🇧 875 111 476ms 13 Jan 2025 899th HumanoidCPU 875 111 477ms 13 Jan 2025 899th ovs-code 🇩🇪 875 111 460ms 24 Jan 2025 899th CaedenHarper 🇨🇦 875 111 472ms 25 Jan 2025 899th MeWhenI 🇻🇦 875 111 465ms 9 Feb 2025 899th pardouin 🇫🇷 875 111 508ms 25 Feb 2025 899th rucin93 🇵🇱 875 111 594ms 12 Mar 2025 899th albanian-laundromat 875 111 482ms 10 Jul 2025 899th snoozingnewt 🇨🇦 875 111 449ms 18 days ago 899th JOrE20 🇺🇸 875 111 391ms 13 days ago 914th AgathokakologicalBit 873 45 9ms 19 Jul 2019 914th face0xff 873 45 15ms 26 Nov 2021 914th RDShah 873 45 17ms 12 Jun 2022 914th tri1212 🇻🇳 873 45 18ms 21 Jul 2022 914th vhoulbreque 🇫🇷 873 45 15ms 13 Aug 2022 914th Andriamanitra 🇫🇮 873 45 16ms 22 Sep 2022 914th gXLg 🇩🇪 873 45 9ms 22 Oct 2022 914th SniperSmiley 🇺🇸 873 45 10ms 13 Dec 2022 914th b10011 🇫🇮 873 45 8ms 13 Jan 2023 914th Ripick 873 45 16ms 1 Feb 2023 914th SirFireball3521 873 45 9ms 4 Feb 2023 914th quimey 873 45 15ms 22 Mar 2023 914th rollershutter 873 45 15ms 25 Apr 2023 914th celiendonze 🇨🇭 873 45 15ms 4 Jul 2023 914th cros107 🇦🇺 873 45 16ms 14 Aug 2023 914th yourlefthandman 873 45 16ms 15 Aug 2023 914th PatrickStephansen 🇿🇦 873 45 9ms 23 Aug 2023 914th ListeriaM 873 45 9ms 25 Aug 2023 914th dteague3989 873 45 9ms 26 Oct 2023 914th boboquack 873 45 16ms 18 Nov 2023 914th Dataen 873 45 15ms 12 Jan 2024 914th NickTheEASDude 🇺🇸 873 45 15ms 1 Feb 2024 914th LlamaLad7 🇬🇧 873 45 10ms 9 Feb 2024 914th retrohun 873 45 9ms 29 Mar 2024 914th starfihs 873 45 9ms 2 Aug 2024 914th jatloe 873 45 16ms 24 Aug 2024 914th jamiloBBKing 873 45 15ms 27 Jan 2025 914th jamesthekee 873 45 15ms 27 Jan 2025 914th IsaacAlexBarden 873 45 16ms 6 Feb 2025 914th Languag3 873 45 15ms 6 Mar 2025 914th souta-1326 873 45 14ms 23 Mar 2025 914th H3XDaemon 873 45 16ms 19 Aug 2025 914th wobblybits 873 45 15ms 29 Aug 2025 914th EthanJantz 873 45 16ms 29 Aug 2025 914th not-a-pokemon 873 45 15ms 10 Sep 2025 914th mishak-sys 873 45 16ms 10 Sep 2025 914th tommasotode 873 45 16ms 20 Sep 2025 914th Daniel-Ellison 873 45 15ms 2 Oct 2025 914th solisolu 873 45 9ms 25 Nov 2025 914th JOrE20 🇺🇸 873 45 9ms 13 days ago 954th MeWhenI 🇻🇦 872 37 99ms 18 Aug 2021 955th prplz 🇦🇺 872 54 2ms 6 Mar 2019 955th Attero 🇸🇪 872 54 2ms 28 Apr 2020 955th janbehrens 🇩🇪 872 54 1ms 30 Nov 2020 955th TomatOid 872 54 1ms 22 Feb 2021 955th sisyphus-ppcg 🇦🇺 872 54 1ms 24 Jun 2021 955th m-tkach 🇺🇦 872 54 1ms 5 Oct 2021 First Prev 881–960 of 4,997 Next Last