The Calendar hole will go live in approximately 5 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 236th bitsandbeyond 🇳🇱 947 29 261ms 14 Aug 2024 236th juliansiebert 🇩🇪 947 29 238ms 2 Feb 2025 236th sean-niemann 🇺🇸 947 29 254ms 25 Mar 2025 236th IISResetMe 947 29 214ms 3 Jun 2025 245th primo-ppcg 🇹🇭 943 28 3ms 9 Sep 2022 245th Lydxn 🇨🇦 943 28 3ms 17 Jun 2023 247th Lydxn 🇨🇦 941 30 987ms 6 Sep 2022 247th JayXon 🇺🇸 941 30 1,171ms 6 Sep 2022 247th GrayJoKing 🇦🇺 941 30 950ms 6 Sep 2022 247th sisyphus-ppcg 🇦🇺 941 30 969ms 7 Sep 2022 247th Steffan153 🇫🇮 941 30 1,039ms 17 Feb 2023 247th stefangimmillaro 941 30 1,054ms 12 Jun 2023 247th btnlq 941 30 979ms 5 Aug 2023 247th sean-niemann 🇺🇸 941 30 882ms 24 Mar 2024 247th emgordon154 941 30 952ms 18 Nov 2024 247th pardouin 🇫🇷 941 30 982ms 11 Apr 2025 247th fuzzylojik-golf 🇺🇸 941 30 872ms 13 Sep 2025 258th JayXon 🇺🇸 940 31 389ms 6 Sep 2022 258th Lydxn 🇨🇦 940 31 402ms 7 Sep 2022 258th antimon2 🇯🇵 940 31 401ms 11 Jul 2024 261st Lydxn 🇨🇦 938 37 379ms 17 Jan 2024 261st kg583 🇺🇸 938 37 372ms 15 Mar 2024 261st pardouin 🇫🇷 938 37 379ms 11 Jul 2024 261st JayXon 🇺🇸 938 37 373ms 17 Aug 2024 261st Steffan153 🇫🇮 938 37 368ms 17 Aug 2024 261st sean-niemann 🇺🇸 938 37 392ms 24 Jan 2025 267th stefangimmillaro 937 56 356ms 12 Jun 2023 267th JayXon 🇺🇸 937 56 364ms 13 Jun 2023 267th Lydxn 🇨🇦 937 56 351ms 15 Jun 2023 267th sean-niemann 🇺🇸 937 56 350ms 17 Jun 2023 267th Steffan153 🇫🇮 937 56 352ms 13 Mar 2024 267th namelessiw 937 56 359ms 27 Jul 2024 267th fuzzylojik-golf 🇺🇸 937 56 369ms 20 Aug 2025 267th AdrienHache 🇫🇷 937 56 346ms 15 Sep 2025 275th primo-ppcg 🇹🇭 935 40 9ms 9 Sep 2022 275th orthoplex 🇨🇽 935 40 9ms 4 Oct 2023 275th pardouin 🇫🇷 935 40 9ms 23 Aug 2024 278th JayXon 🇺🇸 934 70 66ms 6 Sep 2022 278th Lydxn 🇨🇦 934 70 58ms 6 Sep 2022 278th nwellnhof 🇩🇪 934 70 57ms 11 Sep 2022 278th Steffan153 🇫🇮 934 70 58ms 6 Mar 2023 278th sean-niemann 🇺🇸 934 70 61ms 14 Apr 2024 278th ovs-code 🇩🇪 934 70 63ms 27 Apr 2024 278th Herbert00709 🇵🇱 934 70 55ms 12 Jul 2024 278th MostParsingVex 934 70 58ms 26 Aug 2024 278th fuzzylojik-golf 🇺🇸 934 70 56ms 20 Aug 2025 278th KasperKivimaeki 🇫🇮 934 70 62ms 25 Aug 2025 278th 09cf 934 70 57ms 25 Nov 2025 289th primo-ppcg 🇹🇭 933 42 4ms 9 Sep 2022 289th Lydxn 🇨🇦 933 42 5ms 17 Jun 2023 291st Lydxn 🇨🇦 931 50 2ms 6 Sep 2022 291st JayXon 🇺🇸 931 50 2ms 6 Sep 2022 291st Steffan153 🇫🇮 931 50 2ms 6 Mar 2023 291st ovs-code 🇩🇪 931 50 2ms 8 Oct 2023 291st JohandeRuiter 🇳🇱 931 50 2ms 26 Nov 2023 291st KasperKivimaeki 🇫🇮 931 50 2ms 3 Feb 2024 291st sean-niemann 🇺🇸 931 50 2ms 14 Apr 2024 291st Herbert00709 🇵🇱 931 50 2ms 17 Apr 2024 291st MostParsingVex 931 50 2ms 27 Aug 2024 291st Schoko3001 931 50 2ms 7 Jan 2025 291st tigerdan2 🇩🇪 931 50 2ms 7 Jan 2025 291st fuzzylojik-golf 🇺🇸 931 50 2ms 20 Aug 2025 291st 09cf 931 50 2ms 26 days ago 304th JayXon 🇺🇸 931 61 120ms 7 Sep 2022 304th sean-niemann 🇺🇸 931 61 438ms 26 Sep 2025 304th JayXon 🇺🇸 931 61 439ms 26 Sep 2025 304th fuzzylojik-golf 🇺🇸 931 61 431ms 26 Sep 2025 304th namelessiw 931 61 432ms 2 Oct 2025 304th stefangimmillaro 931 61 433ms 6 Oct 2025 304th kumavale 931 61 115ms 29 Oct 2025 304th Lydxn 🇨🇦 931 61 341ms 14 days ago 312th MWI-polygolf 930 43 10ms 6 Dec 2023 312th albanian-laundromat 930 43 9ms 16 Sep 2025 312th AdrienHache 🇫🇷 930 43 10ms 8 days ago 315th Lydxn 🇨🇦 925 54 124ms 6 Sep 2022 315th HPWiz 🇳🇿 925 54 122ms 6 Sep 2022 315th xnor-gate 925 54 128ms 13 Sep 2022 315th lynn 925 54 123ms 20 Sep 2022 315th henkma 925 54 123ms 30 May 2023 320th saito-ta 🇯🇵 924 35 3ms 7 Sep 2022 First Prev 241–320 of 2,733 Next Last