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 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 320th kumavale 931 61 115ms 29 Oct 2025 322nd MWI-polygolf 930 43 10ms 6 Dec 2023 322nd albanian-laundromat 930 43 9ms 16 Sep 2025 322nd AdrienHache 🇫🇷 930 43 10ms 8 days ago 325th sean-niemann 🇺🇸 930 62 438ms 26 Sep 2025 325th JayXon 🇺🇸 930 62 439ms 26 Sep 2025 325th fuzzylojik-golf 🇺🇸 930 62 431ms 26 Sep 2025 325th namelessiw 930 62 432ms 2 Oct 2025 325th stefangimmillaro 930 62 433ms 6 Oct 2025 325th KasperKivimaeki 🇫🇮 930 62 390ms 24 days ago 325th Lydxn 🇨🇦 930 62 341ms 14 days ago 332nd Lydxn 🇨🇦 925 54 124ms 6 Sep 2022 332nd HPWiz 🇳🇿 925 54 122ms 6 Sep 2022 332nd xnor-gate 925 54 128ms 13 Sep 2022 332nd lynn 925 54 123ms 20 Sep 2022 332nd henkma 925 54 123ms 30 May 2023 337th saito-ta 🇯🇵 924 35 3ms 7 Sep 2022 337th primo-ppcg 🇹🇭 924 35 3ms 9 Sep 2022 337th Lydxn 🇨🇦 924 35 3ms 12 Aug 2023 340th primo-ppcg 🇹🇭 924 46 2ms 11 Aug 2023 340th JayXon 🇺🇸 924 46 2ms 11 Aug 2023 340th Lydxn 🇨🇦 924 46 2ms 12 Aug 2023 343rd ovs-code 🇩🇪 922 39 69ms 12 Sep 2024 343rd GrayJoKing 🇦🇺 922 39 63ms 13 Sep 2024 343rd Kacarott 🇦🇺 922 39 69ms 13 Sep 2024 343rd error256 922 39 64ms 13 Sep 2024 343rd pardouin 🇫🇷 922 39 62ms 13 Sep 2024 343rd edsrzf 🇳🇿 922 39 71ms 25 Sep 2024 343rd Shanethegamer 🇺🇸 922 39 68ms 22 Nov 2024 343rd primo-ppcg 🇹🇭 922 39 62ms 5 Apr 2025 343rd MeWhenI 🇻🇦 922 39 68ms 5 Apr 2025 343rd sean-niemann 🇺🇸 922 39 65ms 7 Apr 2025 343rd DialFrost 🇸🇬 922 39 62ms 8 Apr 2025 343rd fuzzylojik-golf 🇺🇸 922 39 63ms 17 Sep 2025 355th MeWhenI 🇻🇦 921 58 367ms 6 Sep 2022 355th janbehrens 🇩🇪 921 58 368ms 7 Sep 2022 355th p-vf 🇨🇭 921 58 362ms 8 Sep 2022 355th primo-ppcg 🇹🇭 921 58 371ms 9 Sep 2022 355th nwellnhof 🇩🇪 921 58 350ms 11 Sep 2022 355th billings7 🇬🇧 921 58 347ms 16 Oct 2022 355th tomtheisen 🇺🇸 921 58 364ms 28 Oct 2022 355th btnlq 921 58 376ms 9 May 2023 355th DialFrost 🇸🇬 921 58 360ms 26 Sep 2023 355th Yewzir 🇧🇪 921 58 349ms 14 Oct 2023 355th Betuaredead 921 58 367ms 12 Nov 2023 355th Herbert00709 🇵🇱 921 58 378ms 22 Dec 2023 355th pardouin 🇫🇷 921 58 316ms 23 Aug 2024 355th albanian-laundromat 921 58 354ms 30 Sep 2025 369th inventshah 921 71 57ms 25 Nov 2022 369th pardouin 🇫🇷 921 71 59ms 31 May 2025 371st xsot 🇸🇬 920 42 2ms 18 Mar 2024 372nd JayXon 🇺🇸 919 38 121ms 4 Aug 2024 372nd Steffan153 🇫🇮 919 38 124ms 4 Aug 2024 372nd sean-niemann 🇺🇸 919 38 129ms 4 Aug 2024 372nd lukegustafson 🇺🇸 919 38 127ms 5 Aug 2024 372nd Lydxn 🇨🇦 919 38 129ms 6 Aug 2024 372nd pardouin 🇫🇷 919 38 125ms 23 Aug 2024 372nd rucin93 🇵🇱 919 38 126ms 28 Aug 2024 379th Shanethegamer 🇺🇸 918 50 8ms 6 Sep 2022 379th Lydxn 🇨🇦 918 50 8ms 6 Sep 2022 379th JayXon 🇺🇸 918 50 8ms 6 Sep 2022 379th primo-ppcg 🇹🇭 918 50 8ms 9 Sep 2022 379th AlephSquirrel 918 50 8ms 7 Jan 2023 379th Steffan153 🇫🇮 918 50 8ms 12 Jan 2023 379th sisyphus-ppcg 🇦🇺 918 50 7ms 6 Feb 2023 379th ovs-code 🇩🇪 918 50 8ms 11 Mar 2023 379th syntax-rules 918 50 8ms 15 May 2023 379th MeWhenI 🇻🇦 918 50 7ms 5 Aug 2023 379th varhammer 🇷🇺 918 50 8ms 10 Jan 2024 379th xsot 🇸🇬 918 50 8ms 21 Sep 2024 379th kg583 🇺🇸 918 50 8ms 5 Oct 2024 379th DialFrost 🇸🇬 918 50 8ms 6 Dec 2024 379th edsrzf 🇳🇿 918 50 8ms 6 Dec 2024 379th CLOStrophobic 🇮🇹 918 50 8ms 17 Jan 2025 379th zacjl 918 50 8ms 14 Feb 2025 379th pardouin 🇫🇷 918 50 8ms 21 Mar 2025 379th sean-niemann 🇺🇸 918 50 10ms 17 Apr 2025 379th fuzzylojik-golf 🇺🇸 918 50 8ms 6 Aug 2025 399th Lydxn 🇨🇦 917 39 75ms 12 Dec 2022 400th DialFrost 🇸🇬 916 30 247ms 8 Jun 2024 First Prev 321–400 of 2,752 Next Last