The Calendar hole will go live in approximately 3 days. Why not try and solve it ahead of time?
12 Days of Christmas 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 638th OyuDays 793 523 9ms 17 Mar 2025 642nd gardarjuto 792 524 9ms 16 Nov 2020 642nd xy3 🇮🇪 792 524 9ms 4 Jan 2022 642nd xenufo 792 524 9ms 14 Jul 2022 642nd james-downey 792 524 9ms 14 Jul 2022 642nd Argon1999 792 524 9ms 21 Oct 2022 642nd OSYCh314 🇦🇺 792 524 10ms 2 Nov 2024 648th NicoAdams 790 525 9ms 21 Nov 2021 648th sleepyStick 790 525 10ms 5 Apr 2022 648th ce-warren 790 525 9ms 26 Aug 2023 648th funnsam 🇭🇰 790 525 9ms 23 Oct 2023 648th qwjhvbxi 790 525 9ms 5 Feb 2024 648th TheAtrossian 790 525 10ms 5 Jan 2025 648th HagenFritz 790 525 9ms 19 Jun 2025 655th babulibaba 789 526 9ms 15 Aug 2019 655th ashwinvis 789 526 9ms 17 Apr 2020 655th hdformat 789 526 9ms 8 Jun 2020 655th mathwiz42 789 526 10ms 17 Aug 2020 655th confy 789 526 9ms 25 Oct 2020 655th dgambit 789 526 10ms 2 Apr 2021 655th goldstraw 789 526 9ms 30 Nov 2021 655th JohannaWarnqvist 789 526 9ms 13 Feb 2022 655th martinnorling 🇸🇪 789 526 9ms 28 Feb 2022 655th ezhereshchin 789 526 9ms 1 May 2022 655th NerdyMcNerd42 789 526 11ms 14 Oct 2022 655th fredoinsilico 789 526 9ms 7 Sep 2023 655th aviyanp 789 526 10ms 13 Oct 2025 655th ethanlchristensen 789 526 10ms 17 Oct 2025 655th ElieDeBrauwer 789 526 9ms 25 Oct 2025 670th asadullayev 787 527 10ms 8 Jan 2021 670th PYRiTEmonark 787 527 9ms 11 Mar 2021 670th BackslashWelsh 787 527 9ms 23 Jul 2021 670th TyKeeling 787 527 10ms 22 Jun 2022 670th cingulataluke 787 527 9ms 26 Aug 2023 670th SomeSomeOne99 787 527 9ms 26 Mar 2025 670th asarvazyan 787 527 9ms 22 Oct 2025 677th willzywiec 786 528 28ms 8 Aug 2018 677th ionutm82 786 528 9ms 9 Nov 2018 677th jhunterkohler 786 528 9ms 20 May 2021 677th elephantpanda 786 528 9ms 14 Oct 2022 677th sandorstormen 786 528 9ms 11 Mar 2023 677th fbe 786 528 9ms 11 Sep 2024 677th MasterGodzilla 786 528 16ms 26 Jun 2025 684th RatajVaver 784 529 9ms 13 May 2019 684th henryishuman 784 529 9ms 23 May 2020 684th phpboyscout 784 529 9ms 5 Jan 2021 684th HorseScary 784 529 10ms 16 Nov 2021 684th lokesh1809 784 529 10ms 3 Dec 2021 689th scottJsonar 783 530 9ms 29 Nov 2019 689th WillowBee7 783 530 9ms 16 Sep 2020 689th jjgry 783 530 9ms 5 Nov 2020 689th GulgDev 783 530 10ms 21 Mar 2023 689th joshua-el-samalouti 🇩🇪 783 530 9ms 26 May 2024 689th jameswmccarty 783 530 9ms 11 Jul 2024 689th SOONwasTaken 783 530 9ms 18 Mar 2025 689th brandongumby 783 530 11ms 8 Jun 2025 697th bwat2 782 531 10ms 27 Dec 2021 698th johnnythedoggie 780 532 9ms 31 Mar 2021 698th pecholsjones 780 532 9ms 8 Dec 2021 698th dzybine 780 532 10ms 7 Mar 2022 698th zlohner 780 532 9ms 6 Apr 2022 698th jsvizcaino 780 532 9ms 13 Dec 2022 698th buddyw 780 532 10ms 9 Mar 2023 698th r-i-c-e 780 532 11ms 8 Jul 2023 698th OllyTDev 780 532 9ms 22 Aug 2023 698th 123mjb 780 532 10ms 3 Jan 2024 698th YAJUE114514 780 532 9ms 24 Aug 2025 708th chanyoungs 779 533 9ms 3 Jun 2020 708th atazzam 🇺🇸 779 533 10ms 11 Feb 2023 708th Cynopolis 779 533 9ms 13 Oct 2023 711th david-wiles6 777 534 10ms 23 Jan 2020 711th thomashastings 777 534 10ms 15 Apr 2021 711th ethandhunt 777 534 9ms 20 Jul 2021 711th omri2001 777 534 9ms 22 Oct 2022 711th oceko 777 534 9ms 2 Jan 2023 716th newc0m 776 535 10ms 13 Dec 2018 716th TheMickeyMouse 776 535 9ms 31 Jul 2021 716th Alcancir 776 535 10ms 1 Feb 2022 716th jorisbertram 776 535 10ms 26 Aug 2022 716th sbyrne51 776 535 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