The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Evil Numbers (Long) 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 641st JayXon 🇺🇸 873 54 37ms 8 Sep 2022 642nd emgordon154 873 78 102ms 12 days ago 642nd GolfingSuccess 🇬🇷 873 78 165ms 12 days ago 644th ovs-code 🇩🇪 872 41 63ms 4 days ago 645th MeWhenI 🇻🇦 872 75 58ms 6 Sep 2022 645th jared-hughes 872 75 48ms 8 Sep 2022 645th Alex-x90 🇺🇸 872 75 73ms 9 Sep 2022 645th BlankSpruce 872 75 61ms 14 Sep 2022 645th janbehrens 🇩🇪 872 75 51ms 20 Nov 2022 645th Irratix 🇳🇱 872 75 52ms 15 Dec 2022 645th DialFrost 🇸🇬 872 75 53ms 1 Sep 2023 645th Yewzir 🇧🇪 872 75 84ms 14 Oct 2023 645th Betuaredead 872 75 66ms 12 Nov 2023 645th Mandrzejy 🇵🇱 872 75 49ms 17 Apr 2024 645th luuumine 🇫🇷 872 75 83ms 8 Nov 2025 656th JayXon 🇺🇸 872 119 1,820ms 14 Sep 2025 657th HPWiz 🇳🇿 871 20 2ms 22 Feb 2025 658th rucin93 🇵🇱 871 45 5ms 4 Jul 2023 658th sisyphus-ppcg 🇦🇺 871 45 5ms 23 Nov 2023 658th targrik 871 45 5ms 31 Oct 2025 661st KatieLG 🇬🇧 870 43 9ms 21 Oct 2022 661st Maznek 870 43 9ms 17 Sep 2023 661st MWI-polygolf 870 43 9ms 6 Dec 2023 664th smw5qz 870 46 10ms 9 Sep 2022 664th gXLg 🇩🇪 870 46 10ms 21 Oct 2022 664th SniperSmiley 🇺🇸 870 46 17ms 13 Dec 2022 664th TaserTheFox 🇺🇸 870 46 10ms 9 Jan 2023 664th SirFireball3521 870 46 10ms 4 Feb 2023 664th AlexanderFair 870 46 10ms 12 Jul 2023 664th ListeriaM 870 46 9ms 25 Aug 2023 664th retrohun 870 46 10ms 29 Mar 2024 664th elgan65536 870 46 10ms 30 Mar 2024 664th wuzekai518 870 46 10ms 18 Jun 2024 664th Bulmenisaurus 870 46 9ms 8 Jul 2024 664th lifthrasiir 🇰🇷 870 46 10ms 14 Nov 2024 664th qpwoeirut 870 46 10ms 13 Aug 2025 677th steffan-polygolf 870 49 2ms 23 Feb 2023 677th MWI-polygolf 870 49 2ms 29 Dec 2023 679th primo-ppcg 🇹🇭 870 154 12ms 13 Aug 2025 680th MeWhenI 🇻🇦 869 45 102ms 6 Sep 2022 680th DialFrost 🇸🇬 869 45 95ms 24 Aug 2024 682nd Steffan153 🇫🇮 869 58 1,287ms 3 Jan 2023 682nd MeWhenI 🇻🇦 869 58 1,276ms 7 Jun 2023 682nd fuzzylojik-golf 🇺🇸 869 58 1,276ms 2 Sep 2025 685th ovs-code 🇩🇪 868 40 363ms 15 Jan 2024 685th DialFrost 🇸🇬 868 40 339ms 15 Jan 2024 685th rucin93 🇵🇱 868 40 342ms 15 Jan 2024 685th sisyphus-ppcg 🇦🇺 868 40 343ms 17 Jan 2024 685th xsot 🇸🇬 868 40 338ms 25 Jan 2024 685th Yewzir 🇧🇪 868 40 341ms 4 Feb 2024 685th lynn 868 40 357ms 17 Feb 2024 685th b-illy 🇬🇧 868 40 361ms 7 Sep 2024 685th fuzzylojik-golf 🇺🇸 868 40 347ms 30 May 2025 685th CornerMercury 🇬🇧 868 40 338ms 12 Oct 2025 685th Babafaba 868 40 360ms 22 days ago 685th CaedenHarper 🇨🇦 868 40 337ms 14 days ago 697th Steffan153 🇫🇮 865 62 80ms 10 Dec 2022 698th dokutan 864 40 674ms 30 Aug 2025 698th CaedenHarper 🇨🇦 864 40 685ms 9 Sep 2025 698th albanian-laundromat 864 40 662ms 12 Sep 2025 698th edsrzf 🇳🇿 864 40 669ms 18 Sep 2025 698th pardouin 🇫🇷 864 40 675ms 17 days ago 703rd jared-hughes 863 123 11ms 18 Dec 2024 704th rucin93 🇵🇱 862 54 2ms 19 Jun 2023 704th biocommando 🇫🇮 862 54 3ms 19 Aug 2023 704th DialFrost 🇸🇬 862 54 264ms 18 Dec 2024 707th blaztoma 🇱🇹 862 79 103ms 18 days ago 707th DialFrost 🇸🇬 862 79 99ms 16 days ago 707th snoozingnewt 🇨🇦 862 79 93ms 5 days ago 710th janbehrens 🇩🇪 862 86 271ms 7 Sep 2022 710th 0xjac 🇨🇭 862 86 269ms 17 Jun 2025 710th CaedenHarper 🇨🇦 862 86 257ms 5 Oct 2025 713th emgordon154 862 126 463ms 20 Mar 2025 713th MeWhenI 🇻🇦 862 126 486ms 28 Mar 2025 715th btnlq 861 58 122ms 15 Oct 2023 716th MeWhenI 🇻🇦 861 66 122ms 6 Sep 2022 716th wuzekai518 861 66 121ms 18 Jun 2024 718th DialFrost 🇸🇬 859 156 12ms 13 Aug 2025 719th MeWhenI 🇻🇦 857 55 36ms 9 Sep 2022 719th Steffan153 🇫🇮 857 55 37ms 22 Oct 2022 First Prev 641–720 of 2,737 Next Last