The Calendar hole will go live in approximately 6 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 796th shawncrabtree 756 549 13ms 21 Jun 2025 796th Sharrrkkk 756 549 9ms 21 Jul 2025 796th dvckyduck 756 549 9ms 26 Oct 2025 804th Esterfox610 755 550 10ms 17 Aug 2022 804th llama1024 755 550 9ms 5 Dec 2022 804th lorienaquarius 755 550 10ms 31 Dec 2023 807th eoinfennessy 753 551 9ms 21 Jul 2021 807th micah-weitzman 753 551 10ms 27 Jul 2021 807th mehekj 753 551 10ms 29 Jul 2021 807th No-Jons 753 551 10ms 23 May 2022 811th Parapet128 752 552 10ms 17 Jan 2019 811th dillon-duncando 752 552 11ms 19 Dec 2021 811th nmougino 🇫🇷 752 552 16ms 31 May 2022 811th Vaibhav0460 752 552 9ms 16 Feb 2024 811th navier-1 752 552 9ms 15 Sep 2025 811th kasarino 752 552 9ms 24 days ago 817th aazuspan 750 553 10ms 24 Nov 2021 817th leeyonjae 750 553 9ms 10 Dec 2023 817th jjkochan2 750 553 9ms 17 Jan 2025 820th carsonsyberg 749 554 9ms 9 May 2022 821st Alexander-Francis 748 555 9ms 10 Jul 2019 821st itiievskyi 🇺🇦 748 555 9ms 10 Aug 2020 821st KasperKivimaeki 🇫🇮 748 555 10ms 20 Nov 2025 824th dddthedark 746 556 9ms 21 Jun 2019 824th ejerrard 746 556 9ms 27 Aug 2020 824th robertovers 746 556 12ms 29 Sep 2023 824th imnotAlexKnight 746 556 10ms 10 Jul 2025 824th rahulbyte-js 746 556 9ms 25 Nov 2025 829th amadeusdotpng 744 558 9ms 22 Apr 2023 829th iliao2345 744 558 9ms 8 Jul 2025 831st lmolteno 742 559 9ms 3 Mar 2021 831st jmath3912 742 559 9ms 26 Apr 2024 831st davidludwik2370 742 559 10ms 17 Sep 2025 834th estomagordo 🇳🇱 741 560 9ms 3 Aug 2019 834th gautambp 741 560 17ms 22 Jun 2025 836th kalpanasuresh 740 561 9ms 26 Mar 2021 836th luxdragon 740 561 9ms 11 Oct 2022 836th falinos 740 561 9ms 1 Jan 2023 836th andyxukq 740 561 9ms 4 Feb 2025 840th fl3ur1nestimable 737 563 9ms 28 Mar 2022 841st NuqieNoila 736 564 9ms 1 Feb 2019 841st bwenstar 736 564 9ms 9 Aug 2022 841st Saaxxx 736 564 9ms 22 Aug 2023 844th MiranDaniel 🇨🇿 735 565 16ms 30 Aug 2023 844th pquline 735 565 9ms 5 Mar 2025 846th artur-py 733 566 9ms 16 Dec 2022 846th skarabb 733 566 9ms 26 Mar 2024 848th CRHillman 731 568 9ms 14 Aug 2018 848th CheeseCake628 🇳🇴 731 568 28ms 19 Mar 2023 848th Greguhh 731 568 10ms 22 Oct 2024 851st msrawson 729 569 9ms 13 Aug 2018 851st TJK-S 729 569 10ms 25 Oct 2025 851st mmarkakis 729 569 13ms 23 days ago 851st punoko 729 569 10ms 15 days ago 855th ei14 728 570 10ms 18 Jun 2021 855th amollberg 🇸🇪 728 570 9ms 3 Jan 2022 855th Eulentier161 728 570 17ms 30 Aug 2023 858th te-chnical 727 571 10ms 46 hours ago 859th Watermelon876 726 572 10ms 27 Nov 2021 859th markbyrne 726 572 9ms 25 Aug 2022 859th joonaspu 726 572 10ms 3 Jun 2023 859th alfonsoalves 726 572 10ms 27 Feb 2024 863rd BenAns 724 573 9ms 17 Nov 2018 863rd KevinLaux 724 573 10ms 4 Dec 2022 865th Dejgz 722 575 9ms 11 Sep 2023 865th gigaprofisi 🇺🇸 722 575 16ms 2 Mar 2025 867th sayloren 720 576 9ms 30 Jul 2025 868th anananlyjlyj 719 577 9ms 2 Jul 2018 868th Sami-ul 719 577 10ms 12 Oct 2021 868th godCoderXYZ 719 577 12ms 5 Dec 2024 871st omgardner 718 578 9ms 1 Mar 2019 871st samual-hain 718 578 9ms 4 Apr 2024 871st JMMMMC 718 578 10ms 23 Oct 2024 874th bakaq 717 579 9ms 4 Jan 2020 874th danielweper 717 579 9ms 21 Oct 2021 876th Matistjati 713 582 10ms 17 Feb 2020 877th jpyCode 712 583 10ms 14 Jan 2019 878th NoneTheFewer 711 584 10ms 5 days ago 879th osNiko 🇧🇷 709 585 10ms 2 hours ago 880th selketdaly 707 587 10ms 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