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 216th max-the-mage 958 41 9ms 29 Oct 2020 216th aionescu 958 41 9ms 1 Dec 2020 216th argusdusty 🇺🇸 958 41 10ms 27 Dec 2020 216th cesarm4 958 41 9ms 6 Jan 2021 216th rak1507 🇬🇧 958 41 10ms 25 Jan 2021 216th Shanethegamer 🇺🇸 958 41 10ms 10 Feb 2021 216th jameslindesay 958 41 10ms 24 Feb 2021 216th stordev 958 41 9ms 26 Feb 2021 216th Espiobest 958 41 9ms 13 Mar 2021 216th jascotm 958 41 9ms 8 Apr 2021 216th asheeri 958 41 9ms 18 Aug 2021 216th clementblaudeau 958 41 9ms 29 Aug 2021 216th jakzo 958 41 10ms 10 Sep 2021 216th CodyMiner 958 41 9ms 11 Nov 2021 216th CedricGebistorf 958 41 10ms 25 Feb 2022 216th Romain-1 🇫🇷 958 41 9ms 3 May 2022 216th tkr-sh 🇰🇵 958 41 10ms 13 Jul 2022 216th Mortis66666 958 41 9ms 14 Jul 2022 216th Bonjour27891 🇻🇳 958 41 9ms 14 Jul 2022 216th jaxmattfair 🇺🇸 958 41 9ms 5 Aug 2022 216th 051 🇸🇬 958 41 10ms 7 Aug 2022 216th ms-boom 958 41 9ms 12 Sep 2022 216th HrrrXppp 958 41 10ms 12 Sep 2022 216th trist224 🇫🇷 958 41 10ms 21 Sep 2022 216th Mikey-Beep 🇬🇧 958 41 9ms 21 Sep 2022 216th abba23 958 41 9ms 23 Sep 2022 216th andersk 🇺🇸 958 41 10ms 25 Oct 2022 216th Yareeeema 958 41 10ms 2 Nov 2022 216th fourth-bit 958 41 9ms 15 Nov 2022 216th TheBlupper 958 41 9ms 23 Nov 2022 216th QuincyNash 🇺🇸 958 41 10ms 30 Nov 2022 216th olivermrose 🇺🇸 958 41 9ms 5 Dec 2022 216th aksyristos 958 41 10ms 19 Dec 2022 216th shacharrr 958 41 10ms 20 Dec 2022 216th OrBenYosef 958 41 10ms 20 Dec 2022 216th nstearns96 🇬🇧 958 41 9ms 21 Dec 2022 216th nayakrujul 958 41 9ms 26 Dec 2022 216th scpchicken 🇵🇼 958 41 11ms 2 Jan 2023 216th emirps 958 41 10ms 30 Jan 2023 216th Skwerl23 958 41 10ms 5 Feb 2023 216th firegene 🇮🇪 958 41 10ms 1 Apr 2023 216th markusgraube 958 41 9ms 13 Apr 2023 216th ToriTheChicken 958 41 9ms 26 May 2023 216th jmerle 🇳🇱 958 41 9ms 5 Jul 2023 216th fkantelberg 958 41 10ms 22 Jul 2023 216th RYNO8 958 41 10ms 20 Aug 2023 216th Matgc04 958 41 9ms 22 Aug 2023 216th FortuiteMan 🇫🇷 958 41 10ms 14 Sep 2023 216th CameronGBell 958 41 9ms 28 Sep 2023 216th msbranicky 958 41 9ms 4 Oct 2023 216th htareque 958 41 9ms 5 Oct 2023 216th Player01osu 958 41 9ms 29 Oct 2023 216th MWI-polygolf 958 41 9ms 6 Dec 2023 216th thatbirdguythatuknownot 958 41 9ms 24 Jan 2024 216th pkilar43 958 41 9ms 9 Feb 2024 216th Just4FunCoder 958 41 10ms 17 Feb 2024 216th f-tucker 958 41 9ms 20 Feb 2024 216th sultan 958 41 10ms 3 Mar 2024 216th helbling 🇨🇭 958 41 10ms 11 Mar 2024 216th dokutan 958 41 9ms 11 Mar 2024 216th RobertHoeh 958 41 10ms 13 Apr 2024 216th HumanoidCPU 958 41 9ms 4 May 2024 216th stertooy 🇧🇪 958 41 10ms 9 Jun 2024 216th cuboids 958 41 10ms 10 Jul 2024 216th Terobero 958 41 10ms 26 Aug 2024 216th hiichbindermax 958 41 11ms 17 Sep 2024 216th Apzyte-Gamer 958 41 10ms 10 Oct 2024 216th Emutis 🇱🇹 958 41 12ms 13 Oct 2024 216th Stockoh 🇫🇷 958 41 9ms 17 Nov 2024 216th JunkIce 958 41 10ms 25 Nov 2024 216th croc54 958 41 9ms 13 Dec 2024 216th klixel 🇨🇦 958 41 9ms 18 Jan 2025 216th ImpressedByRocks 958 41 10ms 24 Jan 2025 216th FEZfan 🇦🇺 958 41 10ms 9 Jul 2025 216th RaBa21 🇭🇺 958 41 10ms 10 Jul 2025 216th Flekay 🇩🇪 958 41 10ms 10 Jul 2025 216th Bulmenisaurus 958 41 9ms 11 Jul 2025 216th xiaoyiming123 958 41 10ms 12 Jul 2025 216th albanian-laundromat 958 41 9ms 4 Oct 2025 216th jacekwladzinski 958 41 9ms 9 Oct 2025 First Prev 241–320 of 5,023 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