The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Arabic to Roman 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 238th WillConker 451 195 24ms 10 Aug 2024 242nd wilkij1 449 196 17ms 16 Jun 2018 242nd lukasthaler 449 196 28ms 9 Sep 2020 242nd asadullayev 449 196 19ms 4 Mar 2021 242nd geooff 449 196 21ms 11 Sep 2023 242nd BlankSpruce 449 196 26ms 31 Aug 2025 247th BrenSchaap 447 197 20ms 21 Oct 2021 247th aksyristos 447 197 23ms 27 Jan 2023 247th ABC00012345 447 197 22ms 1 May 2024 247th michaelmgreer 447 197 21ms 9 Oct 2025 251st zdzc 444 198 20ms 26 Mar 2018 251st Florian-Mt 444 198 28ms 14 Nov 2023 251st l-donovan 444 198 22ms 6 Feb 2024 254th lelbal 442 199 17ms 7 Aug 2025 254th qpwoeirut 442 199 20ms 14 Aug 2025 256th hoodadam 440 200 17ms 5 Jun 2019 256th jiaminglimjm 🇲🇾 440 200 23ms 4 Jul 2020 256th Pena86 440 200 19ms 6 Jan 2022 256th damoc1es 440 200 18ms 4 Dec 2022 256th zekestephens 440 200 24ms 25 Oct 2025 261st msrawson 438 201 24ms 31 Aug 2018 261st ValNyz 438 201 24ms 23 Feb 2022 261st timhaj 🇸🇮 438 201 20ms 28 Aug 2024 261st aalec 438 201 25ms 22 Nov 2025 265th CatsAreFluffy 436 202 30ms 25 Nov 2022 265th tobeannouncd 436 202 19ms 30 Jan 2024 265th epic-programmer-guy 436 202 19ms 17 Feb 2024 268th wrhm 433 203 21ms 15 Dec 2020 268th richard-oelze 🇩🇪 433 203 27ms 4 Apr 2021 268th lemogne 433 203 36ms 2 Jun 2022 268th qwjhvbxi 433 203 19ms 6 Feb 2024 272nd AkashTandon167 431 204 19ms 7 Nov 2019 272nd simon-thornton_pace 431 204 23ms 12 Aug 2023 272nd yousefalizadeh 431 204 24ms 6 Apr 2024 275th alexeldridge 429 205 19ms 12 Aug 2024 275th sciencejiho 429 205 22ms 26 Sep 2024 277th Narik1 427 206 19ms 3 Apr 2023 278th tomh1012 425 207 31ms 10 Nov 2020 278th dgambit 425 207 19ms 10 days ago 280th 4ndyJ 🇬🇧 423 208 20ms 28 Feb 2023 280th ashscodes 423 208 18ms 19 Nov 2023 282nd goombado 421 209 26ms 19 Oct 2020 282nd stordev 421 209 25ms 26 Feb 2021 284th scpchicken 🇵🇼 419 210 23ms 12 Jan 2022 284th andre-lameirinhas 🇵🇹 419 210 23ms 9 May 2023 284th AbhilashaTandon 419 210 19ms 21 Sep 2023 287th markus-rekdal 417 211 20ms 6 Dec 2019 287th Keegan-T 🇨🇦 417 211 27ms 22 Sep 2021 287th Drew-j-Smith 417 211 26ms 25 Apr 2022 287th bac0id 417 211 43ms 29 Jun 2024 291st jbjd 413 213 20ms 23 Nov 2024 291st Emutis 🇱🇹 413 213 17ms 5 Aug 2025 293rd vodker1 411 214 21ms 7 Mar 2022 293rd trist224 🇫🇷 411 214 21ms 25 Dec 2022 293rd Binod-Chhantyal 411 214 20ms 29 Apr 2025 293rd Code-Coder-coder 411 214 20ms 13 Oct 2025 297th boxjelly 409 215 21ms 9 Feb 2021 297th jameslindesay 409 215 17ms 25 Feb 2021 299th inverseLorentz 🇦🇺 407 216 18ms 13 Jun 2022 299th TheZwierzLF 🇵🇱 407 216 45ms 13 days ago 301st KiwiLT 406 217 20ms 28 Nov 2022 301st r-benson 🇬🇧 406 217 20ms 1 Feb 2023 303rd relet 404 218 21ms 10 Aug 2018 303rd alangodfrey 404 218 27ms 18 Feb 2019 303rd galloj 🇨🇿 404 218 20ms 10 Jan 2023 303rd Ailko 🇧🇪 404 218 19ms 17 Jan 2025 307th dymowski 402 219 32ms 9 Jul 2019 307th elephantpanda 402 219 19ms 31 Aug 2022 307th camieac 🇬🇧 402 219 20ms 17 Nov 2023 307th Pale-Vessel 402 219 25ms 20 Dec 2023 307th xbxbxb007 402 219 20ms 10 Jan 2024 312th zuparnowa 400 220 21ms 11 Feb 2019 312th henrytranter 400 220 19ms 20 Sep 2019 312th mrnomm 400 220 21ms 30 Oct 2020 312th Vaekor 400 220 23ms 16 Nov 2020 312th Liastrae 400 220 21ms 22 Aug 2022 312th quimey 400 220 24ms 29 Aug 2023 312th dvckyduck 400 220 20ms 24 Oct 2025 319th vezzick 398 221 38ms 7 Mar 2021 319th DrPiranoid 398 221 18ms 27 Sep 2022 First Prev 241–320 of 502 Next Last
