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 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 396th Steffan153 🇫🇮 938 34 392ms 6 Aug 2024 396th sean-niemann 🇺🇸 938 34 370ms 24 Jan 2025 403rd marcin7Cd 935 42 9ms 3 Sep 2019 403rd ZakkkkAttackkkk 🇵🇭 935 42 9ms 27 Jul 2022 403rd OhmNomNom 935 42 9ms 30 Oct 2022 403rd bob-th 935 42 9ms 14 Feb 2023 407th primo-ppcg 🇹🇭 933 35 79ms 18 Jan 2020 407th JayXon 🇺🇸 933 35 84ms 15 Feb 2021 407th Lydxn 🇨🇦 933 35 83ms 18 Aug 2021 407th stefangimmillaro 933 35 83ms 21 Aug 2023 407th sean-niemann 🇺🇸 933 35 81ms 1 Jan 2025 412th Steffan153 🇫🇮 932 27 41ms 25 Apr 2023 412th sean-niemann 🇺🇸 932 27 44ms 8 Apr 2025 414th nwellnhof 🇩🇪 931 54 347ms 21 Nov 2021 414th tomtheisen 🇺🇸 931 54 355ms 21 Nov 2021 416th Lydxn 🇨🇦 931 78 266ms 10 Mar 2022 416th JayXon 🇺🇸 931 78 262ms 12 Mar 2022 418th JayXon 🇺🇸 928 69 54ms 7 Mar 2022 419th Lydxn 🇨🇦 927 29 3ms 12 May 2023 419th Steffan153 🇫🇮 927 29 4ms 14 May 2023 419th sean-niemann 🇺🇸 927 29 3ms 21 Apr 2025 422nd edsrzf 🇳🇿 927 57 40ms 30 Dec 2024 422nd DialFrost 🇸🇬 927 57 42ms 13 Feb 2025 422nd zacjl 927 57 39ms 13 Feb 2025 422nd kg583 🇺🇸 927 57 41ms 13 Feb 2025 422nd pardouin 🇫🇷 927 57 39ms 25 Apr 2025 427th primo-ppcg 🇹🇭 926 36 120ms 23 Aug 2019 427th JayXon 🇺🇸 926 36 118ms 16 Feb 2021 427th Lydxn 🇨🇦 926 36 124ms 18 Aug 2021 427th Steffan153 🇫🇮 926 36 121ms 25 Apr 2023 427th sean-niemann 🇺🇸 926 36 122ms 27 Dec 2024 432nd primo-ppcg 🇹🇭 926 57 120ms 9 Jan 2020 432nd sisyphus-ppcg 🇦🇺 926 57 119ms 10 Jun 2021 432nd lynn 926 57 119ms 17 Nov 2021 432nd Bubbler-4 926 57 117ms 6 Sep 2022 432nd xnor-gate 926 57 120ms 21 Oct 2022 432nd kgodara 926 57 121ms 6 Mar 2023 432nd MeWhenI 🇻🇦 926 57 120ms 5 Aug 2023 432nd stefangimmillaro 926 57 125ms 2 Oct 2023 432nd fuzzylojik-golf 🇺🇸 926 57 131ms 15 Jul 2025 432nd Natanaelel 🇸🇪 926 57 119ms 24 Jul 2025 442nd Steffan153 🇫🇮 924 28 3ms 11 Aug 2024 442nd btnlq 924 28 3ms 14 Aug 2024 442nd ovs-code 🇩🇪 924 28 3ms 29 Oct 2024 442nd sean-niemann 🇺🇸 924 28 4ms 11 Jan 2025 446th MeWhenI 🇻🇦 923 26 4ms 2 May 2022 447th stassats 923 48 5ms 28 Apr 2018 447th primo-ppcg 🇹🇭 923 48 5ms 12 Dec 2018 447th marcin7Cd 923 48 5ms 6 Feb 2021 447th AlephSquirrel 923 48 5ms 22 May 2021 447th Lydxn 🇨🇦 923 48 5ms 11 Oct 2021 447th Shanethegamer 🇺🇸 923 48 5ms 15 Nov 2021 447th JayXon 🇺🇸 923 48 5ms 26 Dec 2021 447th Steffan153 🇫🇮 923 48 5ms 12 Jan 2023 447th sisyphus-ppcg 🇦🇺 923 48 5ms 6 Feb 2023 447th ovs-code 🇩🇪 923 48 5ms 11 Mar 2023 447th syntax-rules 923 48 5ms 15 May 2023 447th MeWhenI 🇻🇦 923 48 5ms 5 Aug 2023 447th varhammer 🇷🇺 923 48 5ms 13 Dec 2023 447th xsot 🇸🇬 923 48 5ms 21 Sep 2024 447th kg583 🇺🇸 923 48 5ms 5 Oct 2024 447th DialFrost 🇸🇬 923 48 5ms 6 Dec 2024 447th edsrzf 🇳🇿 923 48 5ms 6 Dec 2024 447th CLOStrophobic 🇮🇹 923 48 5ms 17 Jan 2025 447th zacjl 923 48 5ms 14 Feb 2025 447th pardouin 🇫🇷 923 48 5ms 21 Mar 2025 447th sean-niemann 🇺🇸 923 48 5ms 17 Apr 2025 447th fuzzylojik-golf 🇺🇸 923 48 5ms 6 Aug 2025 469th JayXon 🇺🇸 923 51 1ms 17 Feb 2021 469th rhdqor213 923 51 1ms 9 Jun 2024 469th sean-niemann 🇺🇸 923 51 1ms 18 Dec 2024 472nd JayXon 🇺🇸 922 35 93ms 25 Feb 2021 472nd Lydxn 🇨🇦 922 35 101ms 18 Aug 2021 472nd Steffan153 🇫🇮 922 35 107ms 20 Aug 2024 472nd sean-niemann 🇺🇸 922 35 98ms 1 Jan 2025 476th Lydxn 🇨🇦 922 36 2ms 30 Oct 2022 476th ovs-code 🇩🇪 922 36 70ms 13 Sep 2023 476th GrayJoKing 🇦🇺 922 36 83ms 14 Sep 2023 476th Lydxn 🇨🇦 922 36 65ms 14 Sep 2023 476th primo-ppcg 🇹🇭 922 36 66ms 15 Sep 2023 First Prev 401–480 of 4,991 Next Last