The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
Christmas Trees in Perl 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 1st saito-ta 🇯🇵 1,000 49 3ms 3 Oct 2022 2nd kurkale6ka 980 50 2ms 6 Sep 2021 2nd nwellnhof 🇩🇪 980 50 3ms 1 Oct 2021 2nd primo-ppcg 🇹🇭 980 50 2ms 22 May 2022 2nd Lydxn 🇨🇦 980 50 3ms 24 May 2022 2nd Steffan153 🇫🇮 980 50 2ms 14 Feb 2023 2nd scpchicken 🇵🇼 980 50 3ms 28 Feb 2023 8th sisyphus-ppcg 🇦🇺 961 51 3ms 8 Feb 2022 9th o0lit3 🇺🇸 942 52 3ms 31 Oct 2020 10th ovs-code 🇩🇪 925 53 3ms 13 Feb 2023 11th lynn 907 54 2ms 29 Jul 2021 11th perlebach 🇨🇿 907 54 2ms 7 Jun 2025 11th DialFrost 🇸🇬 907 54 2ms 13 Nov 2025 14th somebody1234 891 55 2ms 16 Dec 2018 14th kusune 🇯🇵 891 55 3ms 24 Sep 2023 16th JRaspass 🇬🇧 875 56 3ms 1 Feb 2018 17th labster 845 58 3ms 24 Feb 2018 18th MeWhenI 🇻🇦 831 59 3ms 15 Apr 2023 18th Shanethegamer 🇺🇸 831 59 3ms 29 Oct 2024 18th blaztoma 🇱🇹 831 59 3ms 9 hours ago 21st choroba 817 60 2ms 21 Jan 2018 21st daedals 817 60 3ms 3 Jul 2019 21st heypwesto 🇳🇿 817 60 2ms 4 Jun 2021 21st Natanaelel 🇸🇪 817 60 2ms 2 May 2023 25th janbehrens 🇩🇪 803 61 2ms 7 Sep 2020 26th AlephSquirrel 790 62 3ms 10 Dec 2022 27th bbakersmith 754 65 2ms 13 Jul 2021 27th armin-k1 754 65 2ms 10 Sep 2021 29th LorenzoTa 721 68 2ms 18 Apr 2019 30th ghandmann 690 71 3ms 20 Dec 2019 31st nephila-nacrea 🇬🇧 662 74 2ms 17 Jan 2018 31st KrausRaus 🇺🇸 662 74 2ms 29 Mar 2021 33rd BettaGeorge 653 75 2ms 22 Dec 2017 34th retrohun 620 79 2ms 1 Jan 2023 35th Code-Hex 521 94 3ms 2 Oct 2019 36th msbranicky 450 109 2ms 5 Jan 2024 37th snoozingnewt 🇨🇦 398 123 2ms 4 Nov 2023 38th thekernal 348 141 3ms 23 Oct 2024 39th dokutan 223 220 2ms 23 days ago 40th KatieLG 🇬🇧 188 261 3ms 20 days ago 41st theunofficialcoder 102 479 2ms 1 Sep 2021 42nd 1337-man 89 549 2ms 23 Jan 2022 42nd HumanoidCPU 89 549 2ms 13 May 2024 42nd CaedenHarper 🇨🇦 89 549 2ms 16 Aug 2025 45th KatieLG-Transpiler 🇬🇧 89 551 3ms 2 Jan 2023 46th mokymok 🇺🇸 81 603 2ms 16 Nov 2021 47th Joe-V2 80 611 2ms 19 Apr 2022 1–47 of 47
