The Calendar hole will go live in approximately 7 days. Why not try and solve it ahead of time?
Pernicious Numbers (Long) 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 241st twocatsinatrenchcoat 510 100 25ms 20 Nov 2022 242nd Florian-Mt 505 101 33ms 2 Oct 2023 242nd Ythaenagor 505 101 27ms 5 Aug 2024 244th Bit125 495 103 23ms 28 Mar 2024 244th Terobero 495 103 1,027ms 26 Aug 2024 244th addmai 495 103 34ms 25 Jul 2025 244th arjunarya1 495 103 21ms 12 Sep 2025 248th myleopard 490 104 23ms 22 Dec 2022 248th VV1Git 490 104 36ms 30 Mar 2023 248th jmmographer 490 104 31ms 21 Oct 2023 251st jameswmccarty 486 105 28ms 7 Mar 2025 252nd S-Ruban 481 106 16ms 25 Feb 2023 253rd Supermac30 468 109 30ms 29 Dec 2022 253rd madex 🇩🇪 468 109 38ms 23 May 2024 255th tknight00 464 110 34ms 2 Apr 2024 256th yuchuehw 459 111 32ms 13 Feb 2024 257th zwxzwxzwx21 455 112 2,270ms 30 Jan 2024 257th clayboll99 455 112 32ms 14 Jul 2025 259th Andre3582 451 113 27ms 5 Oct 2025 260th ssbhatt4321 447 114 211ms 11 Jun 2023 260th amollberg 🇸🇪 447 114 24ms 10 Jan 2024 260th 0dyse 447 114 32ms 23 Apr 2025 263rd qwjhvbxi 440 116 29ms 7 Feb 2024 264th SURAJMITTAL 429 119 29ms 20 Dec 2024 264th CodyKlingler 429 119 20ms 7 Feb 2025 266th DGipe 425 120 28ms 2 Jul 2024 267th ComputerKWasTaken 🇺🇸 421 121 28ms 1 Jun 2024 268th azure-blondon 415 123 33ms 14 Dec 2023 269th nmgetahun 408 125 31ms 9 Dec 2022 269th GolfGPT 408 125 19ms 19 Nov 2023 271st EnisEfe0 395 129 30ms 18 May 2025 272nd itljan30 386 132 21ms 6 Jun 2024 273rd kurkale6ka 367 139 29ms 2 Jan 2024 273rd dylanjones92 367 139 23ms 25 Jan 2024 275th TheAtrossian 362 141 17ms 23 days ago 276th zt14427 354 144 21ms 2 May 2023 276th davidtiemstra 354 144 40ms 12 Jul 2023 278th alfonsoalves 349 146 18ms 27 Feb 2024 279th atazzam 🇺🇸 342 149 1,196ms 12 Feb 2023 280th Demonarchet 333 153 32ms 8 Nov 2023 281st eddvrs 331 154 37ms 29 Dec 2022 282nd kevinnaviapaiva 319 160 17ms 5 Mar 2025 283rd CyberTapir 307 166 21ms 3 Sep 2024 284th DrPrettyman 297 172 30ms 18 Jul 2023 285th UriyaBA 291 175 29ms 20 Mar 2023 286th Unknownuserfrommars 259 197 18ms 21 Nov 2024 287th Krtecik 235 217 30ms 9 Feb 2024 288th Bobracha 232 220 20ms 28 Dec 2024 289th juliantamayo-py 188 272 45ms 20 Oct 2024 290th Upload-and-View 🇺🇦 185 275 21ms 11 Aug 2025 291st AidanWalter 104 491 23ms 3 Jan 2025 292nd Zhenyu-Bo 79 644 18ms 1 Aug 2025 293rd KatieLG-Transpiler 🇬🇧 2 24,925 19ms 21 Nov 2022 First Prev 241–293 of 293
