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 881st GrayJoKing 🇦🇺 890 38 1ms 9 Oct 2023 882nd MeWhenI 🇻🇦 890 46 5ms 16 Dec 2024 883rd ZakkkkAttackkkk 🇵🇭 890 74 64ms 27 Jul 2022 884th steffan-polygolf 888 40 347ms 8 Mar 2024 884th Jacob385 888 40 356ms 13 Aug 2024 886th nwellnhof 🇩🇪 888 53 1ms 4 Oct 2020 886th primo-ppcg 🇹🇭 888 53 1ms 5 Oct 2020 886th GrayJoKing 🇦🇺 888 53 1ms 6 Jul 2021 886th emplv 🇱🇻 888 53 1ms 28 Apr 2022 886th Shanethegamer 🇺🇸 888 53 1ms 3 Apr 2023 886th stefangimmillaro 888 53 1ms 12 Jun 2023 886th ovs-code 🇩🇪 888 53 1ms 25 Aug 2023 886th JohandeRuiter 🇳🇱 888 53 1ms 25 Nov 2023 886th DialFrost 🇸🇬 888 53 1ms 16 Jan 2024 886th Herbert00709 🇵🇱 888 53 1ms 14 Apr 2024 886th MostParsingVex 888 53 2ms 26 Aug 2024 886th tigerdan2 🇩🇪 888 53 1ms 8 Jan 2025 886th Schoko3001 888 53 2ms 10 Jan 2025 886th fuzzylojik-golf 🇺🇸 888 53 2ms 20 Aug 2025 886th 09cf 888 53 2ms 23 days ago 886th AdrienHache 🇫🇷 888 53 2ms 17 days ago 902nd primo-ppcg 🇹🇭 887 53 115ms 3 Jul 2019 902nd marcin7Cd 887 53 119ms 13 Mar 2020 902nd ssiquoya 🇷🇺 887 53 116ms 12 Jun 2021 902nd Shanethegamer 🇺🇸 887 53 119ms 22 Mar 2023 906th sisyphus-ppcg 🇦🇺 886 33 371ms 24 Jan 2023 906th Shanethegamer 🇺🇸 886 33 339ms 22 Mar 2023 906th ovs-code 🇩🇪 886 33 290ms 12 Mar 2024 906th antimon2 🇯🇵 886 33 522ms 11 Jul 2024 910th GrayJoKing 🇦🇺 886 36 5ms 21 May 2021 911th lifthrasiir 🇰🇷 886 58 8ms 19 Dec 2024 912th janbehrens 🇩🇪 886 84 255ms 12 Jun 2021 912th albanian-laundromat 886 84 255ms 15 days ago 914th JayXon 🇺🇸 885 29 2ms 7 Mar 2021 914th Steffan153 🇫🇮 885 29 2ms 5 Aug 2024 914th saito-ta 🇯🇵 885 29 3ms 20 Aug 2025 914th sean-niemann 🇺🇸 885 29 3ms 20 days ago 918th prplz 🇦🇺 884 26 118ms 14 Oct 2020 918th primo-ppcg 🇹🇭 884 26 141ms 19 Oct 2020 918th o0lit3 🇺🇸 884 26 100ms 23 Dec 2020 918th sisyphus-ppcg 🇦🇺 884 26 131ms 4 Jan 2021 918th Natanaelel 🇸🇪 884 26 102ms 24 Sep 2021 918th ovs-code 🇩🇪 884 26 108ms 1 Jan 2024 924th DialFrost 🇸🇬 883 37 732ms 29 Aug 2025 924th rucin93 🇵🇱 883 37 679ms 29 Aug 2025 926th Shanethegamer 🇺🇸 883 64 26ms 22 Mar 2023 926th lynn 883 64 25ms 11 Jul 2023 926th GrayJoKing 🇦🇺 883 64 25ms 11 Aug 2023 926th m-tkach 🇺🇦 883 64 26ms 11 Aug 2023 930th Shanethegamer 🇺🇸 882 63 110ms 15 Apr 2025 930th emgordon154 882 63 103ms 21 days ago 930th DialFrost 🇸🇬 882 63 129ms 21 days ago 930th GolfingSuccess 🇬🇷 882 63 95ms 21 days ago 930th edsrzf 🇳🇿 882 63 109ms 20 days ago 930th snoozingnewt 🇨🇦 882 63 94ms 18 days ago 930th sean-niemann 🇺🇸 882 63 99ms 11 days ago 937th Irratix 🇳🇱 881 31 943ms 25 Mar 2021 937th anter69 🇭🇺 881 31 1,054ms 10 Mar 2025 939th targrik 881 41 5ms 2 days ago 940th GrayJoKing 🇦🇺 881 66 455ms 28 Feb 2022 940th DialFrost 🇸🇬 881 66 413ms 16 Jan 2024 942nd JOrE20 🇺🇸 880 66 24ms 5 days ago 943rd wuzekai518 879 60 125ms 18 Jun 2024 944th snyderek 🇺🇸 878 75 57ms 30 Oct 2024 945th j55d 877 41 9ms 29 Sep 2018 945th KatieLG 🇬🇧 877 41 10ms 15 Apr 2021 945th igmcdowell 877 41 8ms 4 Jan 2022 945th MWI-polygolf 877 41 9ms 6 Dec 2023 945th Yax42 🇫🇷 877 41 9ms 5 Sep 2025 950th Shanethegamer 🇺🇸 877 110 10ms 1 Aug 2023 950th MeWhenI 🇻🇦 877 110 10ms 1 Aug 2023 950th Lydxn 🇨🇦 877 110 9ms 1 Aug 2023 950th JayXon 🇺🇸 877 110 9ms 2 Aug 2023 950th Steffan153 🇫🇮 877 110 10ms 2 Aug 2023 950th janbehrens 🇩🇪 877 110 9ms 2 Aug 2023 950th GrayJoKing 🇦🇺 877 110 9ms 11 Aug 2023 950th BREMAUCY 🇫🇷 877 110 9ms 7 Sep 2023 950th dokutan 877 110 9ms 20 Oct 2023 950th Yewzir 🇧🇪 877 110 9ms 12 Mar 2024 950th rucin93 🇵🇱 877 110 12ms 10 May 2024 First Prev 881–960 of 5,023 Next Last