The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
12 Days of Christmas 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 478th xoxo-ily 384 497 10ms 12 Dec 2023 478th aloobun 384 497 9ms 2 Dec 2024 483rd SimonPeatman 384 498 9ms 29 Dec 2018 483rd Arkaedan 384 498 10ms 27 Jul 2020 483rd cesarm4 384 498 9ms 30 Aug 2021 483rd n0es 384 498 10ms 6 Oct 2022 483rd saoudi-h 384 498 10ms 12 Jan 2023 483rd adamnielson42 🇺🇸 384 498 10ms 30 May 2023 483rd ArchFin 384 498 9ms 21 Nov 2024 483rd GeneralFabian 384 498 28ms 14 Dec 2024 483rd energee 384 498 9ms 19 Dec 2024 483rd Europe2048 384 498 11ms 17 Sep 2025 483rd muratovm 384 498 9ms 13 days ago 494th orifu 383 499 9ms 22 Feb 2021 494th Bombergames 383 499 10ms 21 Jan 2022 494th deerfarce 383 499 9ms 23 Dec 2022 494th bob-th 383 499 12ms 29 Dec 2022 494th DonCharlesLambert 383 499 9ms 15 Feb 2024 494th hiichbindermax 383 499 9ms 3 Sep 2024 494th jasonxue1 383 499 10ms 26 Jul 2025 494th yukii1004 383 499 10ms 25 Sep 2025 502nd Psirving 382 500 9ms 20 Jul 2020 502nd stephenuniverse 382 500 9ms 23 Aug 2021 502nd Giridesh 382 500 10ms 3 Apr 2022 502nd Bmrl7 382 500 10ms 19 Mar 2024 502nd planeklm 382 500 9ms 17 Dec 2024 502nd raymur 382 500 9ms 26 Jun 2025 502nd oween12 382 500 10ms 6 Aug 2025 509th adoxography 381 501 10ms 30 Mar 2018 509th sambirnbaum1 381 501 11ms 7 Sep 2019 509th ArturLukianov 381 501 10ms 27 Dec 2020 509th suhasdara 381 501 10ms 11 Sep 2022 509th ceeb9 381 501 9ms 5 May 2023 509th DrPrettyman 381 501 9ms 31 May 2023 509th lucaswiman 381 501 9ms 13 Aug 2023 509th damoose717 381 501 9ms 23 May 2025 509th bknower 381 501 9ms 25 Jun 2025 518th djtuBIG-MaliceX 380 502 15ms 30 Jan 2018 518th The3gs 380 502 10ms 13 Oct 2020 518th 77Tigers 380 502 10ms 28 Feb 2021 518th b4dpxl 380 502 10ms 10 Nov 2021 518th BrenSchaap 380 502 10ms 11 Nov 2021 518th firegene 🇮🇪 380 502 9ms 16 Dec 2021 518th thiccaxe 380 502 11ms 2 Oct 2022 518th EyalLitvin 380 502 9ms 16 Nov 2022 518th mikehanus 380 502 9ms 21 Nov 2023 527th kypi 380 503 10ms 20 Feb 2020 527th bastienvoirin 🇫🇷 380 503 10ms 28 Nov 2020 527th bbakersmith 380 503 9ms 26 Jul 2021 527th HassanAliKadhem 🇧🇭 380 503 29ms 5 Jan 2022 527th Expurple 380 503 9ms 8 Jan 2022 527th johnellis1392 380 503 9ms 5 Jan 2024 527th ImpressedByRocks 380 503 9ms 13 Mar 2024 534th ArturLange 379 504 9ms 31 Aug 2018 534th NoliHyd 379 504 9ms 11 Oct 2018 534th badboj40 379 504 9ms 18 Jan 2023 534th unknown25001 379 504 9ms 18 Jul 2024 534th PyryL 🇫🇮 379 504 9ms 12 Aug 2024 534th Marsolo1 379 504 9ms 24 Sep 2024 540th Smoncko 378 505 10ms 1 Feb 2023 540th jrbud 378 505 9ms 30 Dec 2023 540th xiaoyiming123 378 505 9ms 11 Aug 2025 543rd mizuzimu 377 506 11ms 4 Feb 2020 543rd AlexanderFair 377 506 9ms 18 Jul 2023 543rd yuchuehw 377 506 10ms 4 Jan 2024 543rd cykim8811 377 506 9ms 11 Jul 2024 543rd 40fied4t 377 506 10ms 15 May 2025 543rd Rogacz 377 506 9ms 9 Jun 2025 543rd MyckollWinchester 377 506 10ms 13 days ago 550th JBcoding 377 507 16ms 7 Sep 2020 550th Thinthiner 377 507 17ms 7 Sep 2020 550th bsoyka 🇺🇸 377 507 9ms 30 Dec 2022 550th ozzypossie 377 507 9ms 26 May 2023 550th qwertzuioppel 377 507 9ms 4 Mar 2024 555th TrAyZeN 376 508 10ms 18 Aug 2019 555th befoster 376 508 9ms 10 Apr 2021 555th pranavcode 376 508 28ms 26 Apr 2021 555th Cloakless 🇬🇧 376 508 15ms 18 Oct 2021 555th tejapvk 376 508 10ms 18 Jun 2025 560th walterfeyman 375 509 10ms 30 Oct 2021 First Prev 481–560 of 1,127 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