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 09cf 958 41 10ms 22 days ago 216th LostSyntax21 🇬🇧 958 41 9ms 11 days ago 216th AdrienHache 🇫🇷 958 41 16ms 13 hours ago 324th nwellnhof 🇩🇪 957 24 127ms 6 Dec 2021 324th Lydxn 🇨🇦 957 24 134ms 1 May 2022 324th GrayJoKing 🇦🇺 957 24 119ms 16 Dec 2022 327th JayXon 🇺🇸 951 38 4ms 17 Feb 2021 327th Lydxn 🇨🇦 951 38 4ms 9 Mar 2022 327th Steffan153 🇫🇮 951 38 4ms 2 Aug 2024 327th sean-niemann 🇺🇸 951 38 4ms 6 Aug 2024 327th rucin93 🇵🇱 951 38 4ms 6 Aug 2024 332nd primo-ppcg 🇹🇭 950 27 3ms 21 Nov 2019 332nd Lydxn 🇨🇦 950 27 3ms 3 Jul 2023 334th JayXon 🇺🇸 948 54 350ms 21 Nov 2021 334th Lydxn 🇨🇦 948 54 359ms 9 Mar 2022 334th Steffan153 🇫🇮 948 54 364ms 2 Aug 2024 334th sean-niemann 🇺🇸 948 54 350ms 6 Aug 2024 338th primo-ppcg 🇹🇭 946 38 8ms 21 Nov 2019 338th Argeento 🇵🇱 946 38 9ms 7 Oct 2020 338th sisyphus-ppcg 🇦🇺 946 38 9ms 28 Jul 2022 338th Shanethegamer 🇺🇸 946 38 9ms 3 Apr 2023 338th biocommando 🇫🇮 946 38 8ms 19 Aug 2023 338th orthoplex 🇨🇽 946 38 8ms 4 Oct 2023 338th DialFrost 🇸🇬 946 38 8ms 16 Jan 2024 338th emplv 🇱🇻 946 38 9ms 3 days ago 346th sean-niemann 🇺🇸 944 59 443ms 26 Sep 2025 346th JayXon 🇺🇸 944 59 433ms 26 Sep 2025 346th Lydxn 🇨🇦 944 59 327ms 6 days ago 349th JayXon 🇺🇸 943 31 345ms 16 Jan 2024 349th Lydxn 🇨🇦 943 31 361ms 16 Jan 2024 349th Steffan153 🇫🇮 943 31 407ms 6 Aug 2024 349th sean-niemann 🇺🇸 943 31 435ms 7 Aug 2024 353rd GrayJoKing 🇦🇺 942 29 919ms 23 Mar 2021 353rd sisyphus-ppcg 🇦🇺 942 29 960ms 23 Mar 2021 353rd primo-ppcg 🇹🇭 942 29 902ms 24 Mar 2021 353rd Lydxn 🇨🇦 942 29 981ms 25 Mar 2021 353rd JayXon 🇺🇸 942 29 1,009ms 6 May 2021 353rd Steffan153 🇫🇮 942 29 950ms 17 Feb 2023 353rd stefangimmillaro 942 29 992ms 12 Jun 2023 353rd btnlq 942 29 967ms 5 Aug 2023 353rd sean-niemann 🇺🇸 942 29 941ms 24 Mar 2024 353rd emgordon154 942 29 969ms 18 Nov 2024 353rd pardouin 🇫🇷 942 29 948ms 11 Apr 2025 353rd fuzzylojik-golf 🇺🇸 942 29 847ms 13 Sep 2025 365th JayXon 🇺🇸 942 56 117ms 17 Feb 2021 365th Lydxn 🇨🇦 942 56 122ms 9 Mar 2022 365th Steffan153 🇫🇮 942 56 128ms 2 Aug 2024 365th rucin93 🇵🇱 942 56 120ms 3 Aug 2024 365th sean-niemann 🇺🇸 942 56 116ms 6 Aug 2024 365th acotis 942 56 122ms 10 Jun 2025 365th kumavale 942 56 111ms 18 Aug 2025 372nd JayXon 🇺🇸 941 50 117ms 8 Mar 2021 372nd Lydxn 🇨🇦 941 50 120ms 10 Mar 2022 372nd henkma 941 50 116ms 30 May 2023 372nd Steffan153 🇫🇮 941 50 146ms 6 Aug 2024 372nd sean-niemann 🇺🇸 941 50 113ms 7 Jan 2025 377th Lydxn 🇨🇦 941 70 81ms 14 Apr 2022 378th Lydxn 🇨🇦 939 38 1ms 19 Mar 2022 378th JayXon 🇺🇸 939 38 1ms 16 Jan 2024 378th Steffan153 🇫🇮 939 38 1ms 6 Aug 2024 378th FlyingPenguin223 939 38 1ms 1 Nov 2024 378th sean-niemann 🇺🇸 939 38 1ms 27 Dec 2024 383rd primo-ppcg 🇹🇭 938 34 2ms 19 May 2021 383rd saito-ta 🇯🇵 938 34 1ms 9 Jun 2022 383rd Lydxn 🇨🇦 938 34 2ms 12 Aug 2023 386th marcin7Cd 935 42 9ms 3 Sep 2019 386th ZakkkkAttackkkk 🇵🇭 935 42 9ms 27 Jul 2022 386th OhmNomNom 935 42 9ms 30 Oct 2022 386th bob-th 935 42 9ms 14 Feb 2023 390th Lydxn 🇨🇦 934 38 373ms 16 Jan 2024 390th JayXon 🇺🇸 934 38 359ms 16 Jan 2024 390th Steffan153 🇫🇮 934 38 370ms 6 Aug 2024 390th sean-niemann 🇺🇸 934 38 370ms 24 Jan 2025 394th janlelis 932 28 35ms 5 Jan 2020 394th primo-ppcg 🇹🇭 932 28 35ms 5 Oct 2020 394th JayXon 🇺🇸 932 28 36ms 28 Feb 2021 394th sisyphus-ppcg 🇦🇺 932 28 50ms 10 Jun 2021 394th nwellnhof 🇩🇪 932 28 35ms 1 Nov 2021 394th lynn 932 28 32ms 4 Feb 2022 394th OhmNomNom 932 28 36ms 30 Oct 2022 First Prev 321–400 of 5,022 Next Last