The Calendar hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Christmas Trees 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 561st ly0va 639 97 11ms 6 Jan 2019 561st omgardner 639 97 11ms 28 Feb 2019 561st maxumusprime 639 97 11ms 18 Feb 2020 561st itsbjoern 639 97 9ms 8 Dec 2020 561st dgambit 639 97 11ms 2 Apr 2021 561st lukehatcher 🇺🇸 639 97 11ms 29 Aug 2021 561st danielweper 639 97 11ms 21 Oct 2021 561st borosilicate 639 97 10ms 6 May 2022 561st bthalheim 639 97 10ms 3 Sep 2022 561st CarsonChr 🇺🇸 639 97 9ms 18 Sep 2022 561st n0es 639 97 12ms 18 Oct 2022 561st Glinte 639 97 11ms 15 Dec 2023 561st 123mjb 639 97 9ms 3 Jan 2024 561st damoose717 639 97 9ms 23 May 2025 575th GiorgioBalestrieri 633 98 12ms 20 Mar 2019 575th jamesbtan 633 98 14ms 25 Mar 2019 575th ian-h-chamberlain 🇺🇸 633 98 11ms 14 Dec 2019 575th Reyzartz 633 98 9ms 19 Sep 2020 575th pvilimas 633 98 10ms 18 Feb 2021 575th mamakram 633 98 10ms 20 Oct 2021 575th katharine67 633 98 10ms 8 Oct 2022 575th PotatoSaladOverlord 633 98 9ms 19 May 2023 575th PedroAS7 633 98 9ms 18 Jun 2024 584th arnavb 626 99 10ms 6 Oct 2018 584th Cortan122 626 99 9ms 26 Feb 2019 584th shraiwi 626 99 9ms 12 Jul 2019 584th Theis24 626 99 9ms 27 Nov 2019 584th confy 626 99 9ms 27 Oct 2020 584th OppositeShark 626 99 10ms 19 Jul 2022 584th willdaspit 626 99 11ms 7 Aug 2023 584th TinyTheBrontosaurus 626 99 9ms 3 Dec 2023 584th roguh 🇬🇹 626 99 10ms 14 Jan 2024 584th ComputerKWasTaken 🇺🇸 626 99 9ms 31 May 2024 584th Ralac07 🇦🇺 626 99 10ms 4 Aug 2025 584th Aquateraneal 626 99 10ms 4 Nov 2025 584th Voltrifrodec 🇸🇰 626 99 9ms 7 Nov 2025 597th fatcat2 620 100 10ms 4 Jan 2020 597th tomh1012 620 100 9ms 29 Oct 2020 597th try-except-try-accept 🇹🇭 620 100 9ms 27 Jun 2022 597th Pimveha 620 100 12ms 12 Jan 2023 597th Shiran-Yuan 620 100 9ms 5 Apr 2023 597th r-i-c-e 620 100 10ms 8 Jul 2023 597th ssbhatt4321 620 100 10ms 14 Oct 2023 597th alexjurkiewicz 🇦🇺 620 100 10ms 7 Nov 2023 597th tperr 620 100 9ms 29 Sep 2024 606th cpt-John 614 101 11ms 25 Jun 2019 606th hyphz 614 101 12ms 14 Jan 2020 606th YoranDS 614 101 9ms 25 Nov 2021 606th danielolson13 614 101 10ms 7 Aug 2022 606th cingulataluke 614 101 9ms 26 Aug 2023 606th Azearia 614 101 9ms 27 Feb 2024 606th MassimoParisi 614 101 9ms 23 Sep 2024 613th derekthatcher 608 102 9ms 18 Sep 2020 613th Schreipfelerer 608 102 9ms 27 Nov 2023 613th epic-programmer-guy 608 102 9ms 25 Dec 2023 616th estomagordo 🇳🇱 602 103 11ms 2 Feb 2020 616th goombado 602 103 11ms 14 Oct 2020 616th asadullayev 602 103 9ms 5 Mar 2021 616th matricronia 602 103 9ms 6 May 2021 616th bbakersmith 602 103 18ms 1 Jul 2021 616th LukasFolwarczny 🇨🇿 602 103 11ms 17 Sep 2022 616th goGuru 602 103 11ms 17 Dec 2022 616th roylucas 602 103 10ms 16 Jan 2023 616th Joe85gr 602 103 18ms 30 Sep 2023 616th l-donovan 602 103 9ms 6 Feb 2024 616th NickTheEASDude 🇺🇸 602 103 9ms 11 Apr 2024 627th babulibaba 596 104 10ms 15 Aug 2019 627th besasam 596 104 10ms 31 Mar 2021 627th P-Quentin 🇫🇷 596 104 9ms 8 Aug 2022 627th Hunter-Fairchild 596 104 11ms 30 Aug 2022 627th anonymaew 596 104 10ms 3 Aug 2023 627th azure-blondon 596 104 9ms 10 Feb 2024 627th RobertHoeh 596 104 9ms 16 May 2024 627th DanielBash 596 104 9ms 16 Feb 2025 627th Sharrrkkk 596 104 9ms 21 Jul 2025 636th hjcafaroUC 590 105 10ms 1 Aug 2020 636th wrhm 590 105 9ms 12 Dec 2020 636th gheissen 590 105 12ms 23 Dec 2020 636th krcs 🇵🇱 590 105 11ms 27 Dec 2021 636th alytarik 590 105 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