The Calendar hole will go live in approximately 42 hours. Why not try and solve it ahead of time?
Pernicious Numbers in Python 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 560th hymanimy 377 106 9ms 6 Jun 2021 560th VV1Git 377 106 16ms 28 Mar 2023 563rd Feniske 🇫🇷 374 107 9ms 7 Oct 2022 563rd tknight00 374 107 17ms 5 Mar 2024 563rd HanaEndUser 374 107 15ms 5 Mar 2024 566th lovernj 370 108 9ms 31 Jan 2022 566th yuchuehw 370 108 9ms 3 Jan 2024 568th KiwiKoder0123 367 109 12ms 23 Jun 2019 568th MiranDaniel 🇨🇿 367 109 9ms 29 Apr 2023 568th clayboll99 367 109 9ms 14 Jul 2025 571st Bananapants22 364 110 9ms 15 Aug 2022 572nd evanrittner 360 111 9ms 5 Jun 2021 572nd zwxzwxzwx21 360 111 9ms 30 Jan 2024 572nd BabySharkHi 360 111 16ms 22 Apr 2025 575th ElevatorShaft 357 112 12ms 18 Jun 2019 575th VictorFordham 357 112 9ms 9 Aug 2020 575th inishawl 357 112 9ms 16 Jun 2021 575th theunofficialcoder 357 112 9ms 2 Aug 2021 575th bwat2 357 112 9ms 6 Nov 2021 575th Pyro569 357 112 9ms 30 Jul 2023 575th kevdah 357 112 10ms 2 Oct 2023 575th TralfamadorianComedian 357 112 9ms 31 Dec 2024 583rd wilkij1 354 113 10ms 16 Jun 2018 583rd vonKrafft 354 113 10ms 25 Mar 2020 583rd qwjhvbxi 354 113 9ms 7 Feb 2024 583rd 123mjb 354 113 10ms 19 Nov 2025 587th mvrkws 351 114 9ms 5 Dec 2018 587th devRND-ess 351 114 9ms 29 Apr 2020 587th hamilton-bonds 351 114 10ms 24 Jul 2025 590th sleepyStick 348 115 9ms 2 Dec 2021 591st DaleNaci 345 116 10ms 27 Aug 2018 591st MariuszPienkosz 345 116 9ms 21 May 2020 591st SURAJMITTAL 345 116 9ms 20 Dec 2024 594th SimonPeatman 342 117 15ms 3 Feb 2019 594th odelo 342 117 9ms 26 Oct 2023 594th DGipe 342 117 9ms 2 Jul 2024 594th davidludwik2370 342 117 10ms 17 Sep 2025 594th robbertvz 342 117 10ms 14 hours ago 599th BrenSchaap 339 118 9ms 20 Oct 2021 599th Azearia 339 118 9ms 27 Oct 2023 599th ComputerKWasTaken 🇺🇸 339 118 15ms 1 Jun 2024 602nd fepe55 333 120 10ms 11 Oct 2018 602nd azure-blondon 333 120 9ms 14 Dec 2023 604th sli-Lut 331 121 9ms 26 Oct 2023 605th nmgetahun 328 122 9ms 9 Dec 2022 605th TheLazySquid 328 122 9ms 21 Dec 2022 607th jlevis10 325 123 9ms 26 Oct 2023 607th GolfGPT 325 123 17ms 19 Nov 2023 609th ian-h-chamberlain 🇺🇸 323 124 9ms 27 Dec 2019 610th zuparnowa 320 125 15ms 25 Jan 2019 610th henrytranter 320 125 15ms 20 Sep 2019 610th itljan30 320 125 10ms 2 Sep 2024 613th j21marshall 317 126 9ms 7 Aug 2020 613th goGuru 317 126 9ms 21 Dec 2022 613th EnisEfe0 317 126 10ms 18 May 2025 616th usnheckler 315 127 19ms 8 Jun 2019 617th dylanjones92 294 136 9ms 25 Jan 2024 618th SnehanjanChatterjee 282 142 9ms 20 Dec 2018 618th KatieLG-Transpiler 🇬🇧 282 142 10ms 23 Jun 2022 618th zt14427 282 142 9ms 12 Aug 2023 621st breeezi 280 143 10ms 7 Feb 2020 621st eddvrs 280 143 16ms 22 Dec 2023 621st alfonsoalves 280 143 10ms 27 Feb 2024 624th dddthedark 265 151 9ms 14 Mar 2018 624th PYRiTEmonark 265 151 9ms 22 May 2021 626th hardlyBearable 261 153 9ms 20 May 2019 626th janga1 261 153 9ms 17 Aug 2021 628th dcure73 256 156 9ms 7 Jun 2019 629th markbyrne 250 160 10ms 26 Oct 2020 630th kevinnaviapaiva 248 161 10ms 5 Mar 2025 631st CyberTapir 245 163 9ms 3 Sep 2024 632nd DrPrettyman 237 169 10ms 18 Jul 2023 633rd UriyaBA 233 172 9ms 20 Mar 2023 634th newc0m 225 178 9ms 11 Dec 2018 635th my-company-my 🇲🇽 222 180 9ms 7 Apr 2025 636th Unknownuserfrommars 206 194 9ms 21 Nov 2024 637th Parapet128 205 195 11ms 16 Jan 2019 638th kurkale6ka 201 199 9ms 2 Jan 2024 639th jjbvtk 198 202 9ms 2 Sep 2021 640th Noooiz 194 206 9ms 30 Dec 2018 First Prev 561–640 of 650 Next Last
