The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
Arabic to Roman in Python in bytes. 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 Bytes Time Submitted 400th OSYCh314 🇦🇺 425 292 18ms 16 Nov 2024 402nd IoLimmer 416 298 19ms 17 Jan 2025 403rd yuchuehw 412 301 30ms 28 Jan 2024 403rd alfonsoalves 412 301 16ms 29 Feb 2024 403rd sreyfe 412 301 20ms 23 Mar 2025 406th 2011-Chan-Ethan 408 304 18ms 17 Jul 2023 407th tpolster 405 306 17ms 9 Oct 2024 408th azierariel 403 308 19ms 20 Dec 2020 409th themtamejaws 401 309 18ms 28 May 2020 409th mrmena 🇦🇺 401 309 20ms 1 Jun 2021 411th michelebastione 🇮🇹 400 310 20ms 21 Oct 2019 412th jgermain48 399 311 16ms 9 Dec 2019 413th dyc3 397 312 30ms 27 Jul 2020 414th feherd 395 314 34ms 20 May 2022 415th C3P-Oops 394 315 19ms 24 Jan 2023 416th robin-scragg 384 323 25ms 3 Oct 2025 417th pecholsjones 380 326 20ms 9 Dec 2021 418th newc0m 378 328 20ms 15 Dec 2018 419th bwenstar 376 330 21ms 21 Feb 2024 419th iliaspapa 376 330 18ms 9 days ago 421st hymanimy 375 331 36ms 8 Jan 2022 422nd PFischbeck 373 332 18ms 28 Nov 2017 423rd DrPrettyman 371 334 23ms 4 Jul 2023 424th alexjurkiewicz 🇦🇺 368 337 18ms 14 Jul 2022 425th ImQWERTY39 365 340 20ms 2 Sep 2023 426th fl3ur1nestimable 359 345 17ms 28 Mar 2022 427th DerivingDrunk 358 346 21ms 14 Sep 2025 428th Trunksistor 🇫🇷 354 350 22ms 23 May 2022 429th titrok0982 342 363 17ms 24 Jul 2022 430th Augigogigi 341 364 23ms 28 Jul 2020 431st leon-w 340 365 30ms 12 Jul 2019 432nd AforAmpere 335 370 19ms 7 Jun 2020 432nd Bit125 335 370 22ms 11 Feb 2025 434th usnheckler 330 376 21ms 6 Jun 2019 434th TheAtrossian 330 376 19ms 5 Jan 2025 436th Saaxxx 325 382 21ms 29 Nov 2023 437th Primedavid06 322 385 18ms 5 May 2025 438th DiyaKumariGupta 319 389 21ms 6 May 2025 439th adesanjo 312 397 18ms 12 Jun 2018 440th Mikey-Beep 🇬🇧 308 402 18ms 5 Oct 2022 441st JakeSummers1 308 403 18ms 4 May 2025 442nd TJK-S 306 405 20ms 19 days ago 443rd yvngbvshwookie 303 409 26ms 3 May 2025 444th LizzardTheWizzard 302 410 16ms 4 May 2025 445th jsvizcaino 301 412 21ms 17 Oct 2022 446th estomagordo 🇳🇱 300 413 18ms 5 Aug 2019 446th mhenion8293 🇺🇸 300 413 21ms 13 Jan 2022 446th smilesformiles3 300 413 20ms 15 Jun 2025 449th ethandhunt 300 414 23ms 20 Jul 2021 450th ValdeQwerty 288 430 27ms 27 Nov 2019 451st rcs0252 286 433 18ms 6 May 2025 452nd iwe0003 285 435 17ms 6 May 2025 453rd amritm55 282 439 18ms 1 May 2025 454th tpepython 282 440 22ms 4 Feb 2025 455th ShawnPan9376 280 443 20ms 30 Apr 2025 456th Jacob385 275 451 18ms 24 Feb 2024 457th sakshiPatel2602 274 453 18ms 5 May 2025 458th MostValue 273 455 20ms 29 Aug 2023 459th kalehika1234 271 457 18ms 30 Apr 2025 460th zaironwhite 270 460 17ms 6 May 2025 461st Rowen-Salazar 268 463 21ms 3 May 2025 462nd dylanjones92 245 506 31ms 29 Jan 2024 463rd jac1107 244 508 17ms 6 May 2025 464th besasam 240 517 17ms 31 Mar 2021 465th goodrichster 233 532 17ms 20 Dec 2024 465th AshayP123 233 532 19ms 30 Apr 2025 467th chaamsak 230 539 18ms 5 May 2025 468th GolfGPT 219 567 19ms 19 Nov 2023 469th jtb0362 212 586 18ms 6 May 2025 470th cnc0256 209 592 18ms 5 May 2025 471st Kunsangrg 206 602 17ms 6 May 2025 472nd aidnrox 198 626 21ms 2 May 2025 472nd LyndaS317 198 626 17ms 7 May 2025 474th ch-1016 187 663 19ms 6 May 2025 475th Zhenyu-Bo 183 679 18ms 30 Jul 2025 476th AidanWalter 182 681 19ms 3 Jan 2025 477th arebbsba 176 706 18ms 19 Dec 2024 478th Jordynar02 171 726 22ms 3 May 2025 479th Siyasia 168 737 19ms 3 May 2025 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