The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
Christmas Trees in all languages 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 799th HumanoidCPU 728 69 361ms 13 May 2024 799th JunkIce 728 69 357ms 13 Feb 2025 799th albanian-laundromat 728 69 381ms 9 Aug 2025 804th marcin7Cd 728 73 11ms 2 Sep 2019 804th b-jam 728 73 10ms 6 Dec 2019 804th inventshah 728 73 10ms 8 Apr 2021 804th Re-Adventures 🇮🇳 728 73 11ms 1 Dec 2021 804th OllieBoyne 🇬🇧 728 73 10ms 17 Apr 2022 804th TobyBoyne 🇬🇧 728 73 9ms 18 Apr 2022 804th betaveros 728 73 10ms 31 Dec 2022 804th zacjl 728 73 9ms 19 Apr 2023 804th souta-1326 728 73 9ms 26 Mar 2025 804th ryyyn 🇺🇸 728 73 9ms 22 Jul 2025 814th MeWhenI 🇻🇦 728 101 6ms 9 May 2024 815th Seek64 🇩🇪 728 141 1ms 1 Oct 2024 816th not-optikk 🇺🇸 727 103 1ms 16 Oct 2020 817th RedzGoose 🇦🇺 726 92 98ms 3 Oct 2024 818th UpwardProcess 725 95 4ms 13 Oct 2019 818th GrayJoKing 🇦🇺 725 95 4ms 22 Nov 2022 820th Gaddy 🇫🇷 725 114 402ms 9 May 2022 820th Romain-1 🇫🇷 725 114 393ms 9 May 2022 822nd primo-ppcg 🇹🇭 725 165 1,703ms 9 Jun 2024 823rd frankgraziano 725 247 11ms 11 days ago 824th JoeBigToe 724 65 277ms 6 Jun 2020 825th wellsie1116 724 115 142ms 14 Dec 2021 826th dokutan 723 78 120ms 7 Aug 2024 827th marcin7Cd 723 95 5ms 12 Feb 2021 828th dokutan 723 105 288ms 27 Apr 2024 829th angel-p57 🇯🇵 723 142 1ms 27 Nov 2023 830th user189032 722 94 8ms 29 May 2019 830th sebipopa 🇷🇴 722 94 8ms 16 Sep 2022 830th stefangabos 🇷🇴 722 94 9ms 16 Sep 2022 830th 823126 722 94 9ms 15 Nov 2024 830th a6166231 🇨🇳 722 94 9ms 15 May 2025 835th Herbert00709 🇵🇱 722 129 58ms 20 Apr 2024 836th Shanethegamer 🇺🇸 721 98 1,302ms 18 Jun 2024 837th edsrzf 🇳🇿 721 102 6ms 17 Nov 2025 838th emgordon154 721 166 1,697ms 26 Mar 2025 839th brianlwatson 720 63 42ms 9 Dec 2020 839th Waffle3z 720 63 41ms 21 Jan 2021 839th NewDefectus 🇮🇱 720 63 36ms 10 Feb 2021 839th emgordon154 720 63 52ms 17 Nov 2024 839th olleicua 🇺🇸 720 63 40ms 13 Jun 2025 844th EnigmaticError 720 104 1ms 27 Jan 2024 845th CaedenHarper 🇨🇦 719 124 449ms 4 Oct 2025 846th bbakersmith 718 65 2ms 13 Jul 2021 846th armin-k1 718 65 2ms 10 Sep 2021 848th Sakaala 718 74 10ms 24 Apr 2019 848th rzana 718 74 10ms 14 Dec 2020 848th RYNO8 718 74 9ms 26 Aug 2021 848th Sloimayyy 718 74 9ms 22 Aug 2022 848th shelerr 718 74 9ms 8 Sep 2022 848th CarsonChr 🇺🇸 718 74 10ms 18 Sep 2022 848th Eilonlif 🇮🇱 718 74 12ms 7 Apr 2023 848th WillConker 718 74 10ms 16 Jul 2023 848th wyarde 718 74 9ms 7 Nov 2023 848th chartung17 718 74 9ms 10 Dec 2023 848th sultan 718 74 9ms 9 Mar 2024 848th zaki1993 718 74 9ms 28 May 2024 848th YAJUE114514 718 74 9ms 30 Jul 2025 861st MeWhenI 🇻🇦 718 85 1ms 13 Oct 2023 862nd mousetail 🇳🇱 718 116 146ms 19 Jan 2024 863rd CheeseCake628 🇳🇴 717 70 366ms 17 Jan 2024 864th dokutan 717 93 2ms 26 Jul 2024 865th dokutan 717 100 2,798ms 5 days ago 866th Natanaelel 🇸🇪 716 46 2ms 20 Jul 2023 867th destofr 716 106 119ms 19 Dec 2022 868th solmyr2000 716 130 62ms 18 Jun 2022 868th kkoenig 716 130 416ms 23 Dec 2023 868th MateuszPietrzak 🇵🇱 716 130 395ms 27 Dec 2023 871st Yewzir 🇧🇪 714 70 509ms 26 Feb 2024 871st Ripick 714 70 284ms 24 Jun 2025 871st Lv0Sys 🇵🇱 714 70 571ms 20 days ago 874th nmandel 714 95 9ms 21 Dec 2018 874th zbreit 🇺🇸 714 95 9ms 6 Aug 2020 874th dzshn 714 95 9ms 7 Apr 2021 874th inventshah 714 95 8ms 8 May 2021 874th GeorgeStechman 🇬🇧 714 95 8ms 16 Sep 2022 874th weliveinhell 🇭🇹 714 95 9ms 20 Dec 2023 874th madeforlosers 714 95 9ms 3 Nov 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