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 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 950th HumanoidCPU 877 110 10ms 14 May 2024 950th pardouin 🇫🇷 877 110 9ms 20 Aug 2024 950th KatieLG 🇬🇧 877 110 10ms 26 Sep 2024 950th emgordon154 877 110 9ms 4 Dec 2024 950th CaedenHarper 🇨🇦 877 110 10ms 24 Jan 2025 950th albanian-laundromat 877 110 10ms 20 Jul 2025 950th GolfingSuccess 🇬🇷 877 110 10ms 15 Aug 2025 950th snoozingnewt 🇨🇦 877 110 9ms 13 days ago 969th ovs-code 🇩🇪 876 50 6ms 10 Dec 2023 969th MeWhenI 🇻🇦 876 50 6ms 12 Dec 2023 969th Kaffeleif 876 50 6ms 28 Jan 2024 969th steffan-polygolf 876 50 6ms 8 Mar 2024 969th Maximizer02 876 50 6ms 30 Jul 2024 969th emgordon154 876 50 5ms 10 Dec 2024 969th Babafaba 876 50 7ms 14 Oct 2025 976th DialFrost 🇸🇬 875 111 436ms 12 Jan 2025 976th GolfingSuccess 🇬🇷 875 111 427ms 12 Jan 2025 976th emgordon154 875 111 451ms 12 Jan 2025 976th Shanethegamer 🇺🇸 875 111 476ms 13 Jan 2025 976th dokutan 875 111 489ms 13 Jan 2025 976th KatieLG 🇬🇧 875 111 476ms 13 Jan 2025 976th HumanoidCPU 875 111 477ms 13 Jan 2025 976th ovs-code 🇩🇪 875 111 460ms 24 Jan 2025 976th CaedenHarper 🇨🇦 875 111 472ms 25 Jan 2025 976th MeWhenI 🇻🇦 875 111 465ms 9 Feb 2025 976th pardouin 🇫🇷 875 111 508ms 25 Feb 2025 976th rucin93 🇵🇱 875 111 594ms 12 Mar 2025 976th albanian-laundromat 875 111 482ms 10 Jul 2025 976th snoozingnewt 🇨🇦 875 111 515ms 10 days ago 976th JOrE20 🇺🇸 875 111 391ms 6 days ago 991st xsot 🇸🇬 874 34 49ms 30 Jan 2024 992nd AgathokakologicalBit 873 45 9ms 19 Jul 2019 992nd face0xff 873 45 15ms 26 Nov 2021 992nd RDShah 873 45 17ms 12 Jun 2022 992nd tri1212 🇻🇳 873 45 18ms 21 Jul 2022 992nd vhoulbreque 🇫🇷 873 45 15ms 13 Aug 2022 992nd Andriamanitra 🇫🇮 873 45 16ms 22 Sep 2022 992nd gXLg 🇩🇪 873 45 9ms 22 Oct 2022 992nd SniperSmiley 🇺🇸 873 45 10ms 13 Dec 2022 992nd b10011 🇫🇮 873 45 8ms 13 Jan 2023 992nd Ripick 873 45 16ms 1 Feb 2023 992nd SirFireball3521 873 45 9ms 4 Feb 2023 992nd quimey 873 45 15ms 22 Mar 2023 992nd rollershutter 873 45 15ms 25 Apr 2023 992nd celiendonze 🇨🇭 873 45 15ms 4 Jul 2023 992nd cros107 🇦🇺 873 45 16ms 14 Aug 2023 992nd yourlefthandman 873 45 16ms 15 Aug 2023 992nd PatrickStephansen 🇿🇦 873 45 9ms 23 Aug 2023 992nd ListeriaM 873 45 9ms 25 Aug 2023 992nd dteague3989 873 45 9ms 26 Oct 2023 992nd boboquack 873 45 16ms 18 Nov 2023 992nd Dataen 873 45 15ms 12 Jan 2024 992nd NickTheEASDude 🇺🇸 873 45 15ms 1 Feb 2024 992nd LlamaLad7 🇬🇧 873 45 10ms 9 Feb 2024 992nd retrohun 873 45 9ms 29 Mar 2024 992nd starfihs 873 45 9ms 2 Aug 2024 992nd jatloe 873 45 16ms 24 Aug 2024 992nd jamiloBBKing 873 45 15ms 27 Jan 2025 992nd jamesthekee 873 45 15ms 27 Jan 2025 992nd IsaacAlexBarden 873 45 16ms 6 Feb 2025 992nd Languag3 873 45 15ms 6 Mar 2025 992nd souta-1326 873 45 14ms 23 Mar 2025 992nd H3XDaemon 873 45 16ms 19 Aug 2025 992nd wobblybits 873 45 15ms 29 Aug 2025 992nd EthanJantz 873 45 16ms 29 Aug 2025 992nd not-a-pokemon 873 45 15ms 10 Sep 2025 992nd mishak-sys 873 45 16ms 10 Sep 2025 992nd tommasotode 873 45 16ms 20 Sep 2025 992nd Daniel-Ellison 873 45 15ms 2 Oct 2025 992nd solisolu 873 45 9ms 23 days ago 992nd JOrE20 🇺🇸 873 45 9ms 5 days ago 1,032nd prplz 🇦🇺 871 54 2ms 6 Mar 2019 1,032nd andersk 🇺🇸 871 54 108ms 24 Mar 2020 1,032nd Attero 🇸🇪 871 54 2ms 28 Apr 2020 1,032nd Irratix 🇳🇱 871 54 1ms 9 Oct 2020 1,032nd janbehrens 🇩🇪 871 54 1ms 30 Nov 2020 1,032nd TomatOid 871 54 1ms 22 Feb 2021 1,032nd inventshah 871 54 1ms 8 May 2021 1,032nd sisyphus-ppcg 🇦🇺 871 54 1ms 24 Jun 2021 1,032nd m-tkach 🇺🇦 871 54 1ms 5 Oct 2021 First Prev 961–1,040 of 5,023 Next Last