The Calendar hole will go live in approximately 13 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 321st temoto 396 222 20ms 20 Sep 2018 321st valeria-227 396 222 19ms 5 May 2025 323rd Malin001 395 223 21ms 3 Jan 2020 323rd Thinthiner 395 223 29ms 9 Sep 2020 323rd JBcoding 395 223 29ms 9 Sep 2020 323rd hotmanga 395 223 18ms 13 Oct 2023 323rd codewrite 🇬🇧 395 223 17ms 11 Jul 2025 328th hetz2625 393 224 19ms 5 May 2025 329th Wildst 391 225 32ms 14 Jun 2022 330th ross-i 389 226 25ms 5 Jul 2023 331st winigo3 388 227 20ms 9 Aug 2022 332nd timchu 384 229 21ms 4 Feb 2021 333rd Natz12 383 230 23ms 23 Mar 2023 333rd zt14427 383 230 20ms 18 Nov 2023 335th bastienvoirin 🇫🇷 381 231 23ms 7 Apr 2020 335th S-Ruban 381 231 18ms 26 Feb 2025 337th ionutm82 379 232 21ms 1 Mar 2019 337th j21marshall 379 232 24ms 7 Aug 2020 337th orifu 379 232 43ms 1 Mar 2021 337th SinArieh 379 232 19ms 4 May 2025 341st jhpaques 🇫🇷 378 233 19ms 27 Jul 2022 341st vuxlee584 🇻🇳 378 233 20ms 16 Aug 2022 341st Nikinator2704 378 233 24ms 31 Oct 2025 344th khangtm123 376 234 22ms 6 May 2025 345th dlee888 374 235 26ms 17 Nov 2023 345th roguh 🇬🇹 374 235 37ms 24 Jan 2024 347th guilhem-roy 🇫🇷 373 236 321ms 25 Feb 2022 347th glesnick 373 236 17ms 17 Aug 2022 349th kevdah 370 238 23ms 8 May 2022 349th rollershutter 370 238 25ms 8 Dec 2023 349th resoNathan 370 238 38ms 25 Apr 2024 352nd jazztext 367 240 20ms 1 Jan 2023 352nd Argon1999 367 240 48ms 4 Aug 2024 354th PotatoSaladOverlord 365 241 22ms 3 Jun 2023 355th guliyevemil1 🇦🇿 364 242 18ms 1 Aug 2020 355th Europe2048 364 242 22ms 4 Dec 2024 357th AgathokakologicalBit 362 243 28ms 26 Jul 2019 357th JuanGomez12 362 243 19ms 31 Mar 2023 359th Eugen-str 359 245 22ms 31 Oct 2023 359th brimstonetrader 359 245 20ms 18 Dec 2023 361st ei14 358 246 70ms 18 Jun 2022 361st bbakersmith 358 246 20ms 28 Jun 2022 363rd PhysicDev 🇫🇷 356 247 19ms 17 Mar 2022 364th ridingqwerty 🇺🇸 355 248 31ms 30 Jan 2024 365th Rafale25 352 250 40ms 27 Jul 2020 365th Yareeeema 352 250 21ms 12 Aug 2022 365th Hortaros 352 250 19ms 14 Apr 2023 368th dillon-duncando 351 251 19ms 4 Oct 2022 368th Jacob385 351 251 20ms 24 Feb 2024 370th Upload-and-View 🇺🇦 349 252 17ms 24 Jul 2025 370th llPlayll 349 252 19ms 13 days ago 372nd vonKrafft 346 254 20ms 24 Mar 2020 372nd NicoAdams 346 254 23ms 21 Nov 2021 374th karthik-35 345 255 17ms 30 Apr 2025 374th luuumine 🇫🇷 345 255 23ms 16 Oct 2025 376th sanssaraf 344 256 28ms 2 May 2020 377th Bananapants22 342 257 17ms 10 Aug 2022 378th nsamuelson 340 259 21ms 8 May 2019 379th jbrry 338 260 18ms 28 May 2022 379th ramsay 338 260 18ms 9 Aug 2022 381st twocatsinatrenchcoat 337 261 18ms 5 May 2022 381st JesseNoEyes 🇺🇸 337 261 17ms 18 Sep 2024 383rd shibacho 🇯🇵 336 262 18ms 25 Mar 2022 383rd CyberTapir 336 262 17ms 10 Sep 2024 385th lrustand 335 263 22ms 25 Feb 2018 386th plainoldcheese 🇦🇶 333 264 21ms 17 Jan 2024 387th kevinnaviapaiva 331 266 21ms 6 Mar 2025 388th ComputerKWasTaken 🇺🇸 327 269 16ms 6 Jun 2024 389th NoneTheFewer 325 271 19ms 17 May 2024 390th hardlyBearable 322 273 21ms 12 May 2019 390th NerdyMcNerd42 322 273 21ms 27 Oct 2022 390th sahilshresthaa 322 273 20ms 4 May 2025 393rd aaardwark 318 277 26ms 30 May 2025 394th OppositeShark 315 279 18ms 7 Apr 2022 395th mothcolada 🇺🇸 313 281 17ms 26 Feb 2021 396th sleepyStick 310 284 19ms 4 Dec 2021 396th atazzam 🇺🇸 310 284 24ms 3 Apr 2022 398th CoolBvll 309 285 23ms 12 Jun 2025 399th Akilles1 308 286 45ms 25 Apr 2025 400th veitkrapf 306 288 19ms 7 Oct 2021 First Prev 321–400 of 500 Next Last