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 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 321st MWI-polygolf 930 43 10ms 6 Dec 2023 321st albanian-laundromat 930 43 9ms 16 Sep 2025 321st AdrienHache 🇫🇷 930 43 28ms 19 hours ago 324th sean-niemann 🇺🇸 930 62 438ms 26 Sep 2025 324th JayXon 🇺🇸 930 62 439ms 26 Sep 2025 324th fuzzylojik-golf 🇺🇸 930 62 431ms 26 Sep 2025 324th namelessiw 930 62 432ms 2 Oct 2025 324th stefangimmillaro 930 62 433ms 6 Oct 2025 324th KasperKivimaeki 🇫🇮 930 62 390ms 16 days ago 324th Lydxn 🇨🇦 930 62 341ms 6 days ago 331st primo-ppcg 🇹🇭 927 46 2ms 11 Aug 2023 331st JayXon 🇺🇸 927 46 2ms 11 Aug 2023 331st Lydxn 🇨🇦 927 46 2ms 12 Aug 2023 334th Lydxn 🇨🇦 925 54 124ms 6 Sep 2022 334th HPWiz 🇳🇿 925 54 122ms 6 Sep 2022 334th xnor-gate 925 54 128ms 13 Sep 2022 334th lynn 925 54 123ms 20 Sep 2022 334th henkma 925 54 123ms 30 May 2023 339th saito-ta 🇯🇵 924 35 3ms 7 Sep 2022 339th primo-ppcg 🇹🇭 924 35 4ms 9 Sep 2022 339th Lydxn 🇨🇦 924 35 3ms 12 Aug 2023 342nd ovs-code 🇩🇪 922 39 69ms 12 Sep 2024 342nd GrayJoKing 🇦🇺 922 39 63ms 13 Sep 2024 342nd Kacarott 🇦🇺 922 39 69ms 13 Sep 2024 342nd error256 922 39 64ms 13 Sep 2024 342nd pardouin 🇫🇷 922 39 62ms 13 Sep 2024 342nd edsrzf 🇳🇿 922 39 71ms 25 Sep 2024 342nd Shanethegamer 🇺🇸 922 39 68ms 22 Nov 2024 342nd primo-ppcg 🇹🇭 922 39 62ms 5 Apr 2025 342nd MeWhenI 🇻🇦 922 39 68ms 5 Apr 2025 342nd sean-niemann 🇺🇸 922 39 65ms 7 Apr 2025 342nd DialFrost 🇸🇬 922 39 63ms 8 Apr 2025 342nd fuzzylojik-golf 🇺🇸 922 39 63ms 17 Sep 2025 354th MeWhenI 🇻🇦 921 58 373ms 6 Sep 2022 354th janbehrens 🇩🇪 921 58 368ms 7 Sep 2022 354th p-vf 🇨🇭 921 58 363ms 8 Sep 2022 354th primo-ppcg 🇹🇭 921 58 371ms 9 Sep 2022 354th nwellnhof 🇩🇪 921 58 350ms 11 Sep 2022 354th billings7 🇬🇧 921 58 347ms 16 Oct 2022 354th tomtheisen 🇺🇸 921 58 364ms 28 Oct 2022 354th btnlq 921 58 376ms 9 May 2023 354th DialFrost 🇸🇬 921 58 360ms 26 Sep 2023 354th Yewzir 🇧🇪 921 58 349ms 14 Oct 2023 354th Betuaredead 921 58 367ms 12 Nov 2023 354th Herbert00709 🇵🇱 921 58 386ms 22 Dec 2023 354th pardouin 🇫🇷 921 58 346ms 23 Aug 2024 354th albanian-laundromat 921 58 373ms 30 Sep 2025 368th inventshah 921 71 80ms 25 Nov 2022 368th pardouin 🇫🇷 921 71 78ms 31 May 2025 370th xsot 🇸🇬 920 42 2ms 18 Mar 2024 371st JayXon 🇺🇸 919 38 121ms 4 Aug 2024 371st Steffan153 🇫🇮 919 38 124ms 4 Aug 2024 371st sean-niemann 🇺🇸 919 38 129ms 4 Aug 2024 371st lukegustafson 🇺🇸 919 38 127ms 5 Aug 2024 371st Lydxn 🇨🇦 919 38 129ms 6 Aug 2024 371st pardouin 🇫🇷 919 38 125ms 23 Aug 2024 371st rucin93 🇵🇱 919 38 126ms 28 Aug 2024 378th Shanethegamer 🇺🇸 918 50 8ms 6 Sep 2022 378th Lydxn 🇨🇦 918 50 8ms 6 Sep 2022 378th JayXon 🇺🇸 918 50 8ms 6 Sep 2022 378th primo-ppcg 🇹🇭 918 50 8ms 9 Sep 2022 378th AlephSquirrel 918 50 8ms 7 Jan 2023 378th Steffan153 🇫🇮 918 50 8ms 12 Jan 2023 378th sisyphus-ppcg 🇦🇺 918 50 7ms 6 Feb 2023 378th ovs-code 🇩🇪 918 50 8ms 11 Mar 2023 378th syntax-rules 918 50 8ms 15 May 2023 378th MeWhenI 🇻🇦 918 50 7ms 5 Aug 2023 378th varhammer 🇷🇺 918 50 8ms 10 Jan 2024 378th xsot 🇸🇬 918 50 8ms 21 Sep 2024 378th kg583 🇺🇸 918 50 8ms 5 Oct 2024 378th DialFrost 🇸🇬 918 50 8ms 6 Dec 2024 378th edsrzf 🇳🇿 918 50 8ms 6 Dec 2024 378th CLOStrophobic 🇮🇹 918 50 8ms 17 Jan 2025 378th zacjl 918 50 8ms 14 Feb 2025 378th pardouin 🇫🇷 918 50 8ms 21 Mar 2025 378th sean-niemann 🇺🇸 918 50 10ms 17 Apr 2025 378th fuzzylojik-golf 🇺🇸 918 50 8ms 6 Aug 2025 398th Lydxn 🇨🇦 917 39 75ms 12 Dec 2022 399th DialFrost 🇸🇬 916 30 251ms 8 Jun 2024 400th m-tkach 🇺🇦 916 50 117ms 13 Oct 2022 First Prev 321–400 of 2,756 Next Last