The Calendar hole will go live in approximately 13 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 797th albanian-laundromat 728 69 381ms 9 Aug 2025 802nd marcin7Cd 728 73 11ms 2 Sep 2019 802nd b-jam 728 73 10ms 6 Dec 2019 802nd inventshah 728 73 10ms 8 Apr 2021 802nd Re-Adventures 🇮🇳 728 73 11ms 1 Dec 2021 802nd OllieBoyne 🇬🇧 728 73 10ms 17 Apr 2022 802nd TobyBoyne 🇬🇧 728 73 9ms 18 Apr 2022 802nd betaveros 728 73 10ms 31 Dec 2022 802nd zacjl 728 73 9ms 19 Apr 2023 802nd souta-1326 728 73 9ms 26 Mar 2025 802nd ryyyn 🇺🇸 728 73 9ms 22 Jul 2025 812th MeWhenI 🇻🇦 728 101 6ms 9 May 2024 813th Seek64 🇩🇪 728 141 1ms 1 Oct 2024 814th not-optikk 🇺🇸 727 103 1ms 16 Oct 2020 815th RedzGoose 🇦🇺 726 92 98ms 3 Oct 2024 816th UpwardProcess 725 95 4ms 13 Oct 2019 816th GrayJoKing 🇦🇺 725 95 4ms 22 Nov 2022 818th Gaddy 🇫🇷 725 114 402ms 9 May 2022 818th Romain-1 🇫🇷 725 114 393ms 9 May 2022 820th primo-ppcg 🇹🇭 725 165 1,703ms 9 Jun 2024 821st frankgraziano 725 247 11ms 10 days ago 822nd JoeBigToe 724 65 277ms 6 Jun 2020 823rd wellsie1116 724 115 142ms 14 Dec 2021 824th dokutan 723 78 120ms 7 Aug 2024 825th marcin7Cd 723 95 5ms 12 Feb 2021 826th dokutan 723 105 288ms 27 Apr 2024 827th angel-p57 🇯🇵 723 142 1ms 27 Nov 2023 828th user189032 722 94 8ms 29 May 2019 828th sebipopa 🇷🇴 722 94 8ms 16 Sep 2022 828th stefangabos 🇷🇴 722 94 9ms 16 Sep 2022 828th 823126 722 94 9ms 15 Nov 2024 828th a6166231 🇨🇳 722 94 9ms 15 May 2025 833rd Herbert00709 🇵🇱 722 129 58ms 20 Apr 2024 834th Shanethegamer 🇺🇸 721 98 1,302ms 18 Jun 2024 835th edsrzf 🇳🇿 721 102 6ms 17 Nov 2025 836th emgordon154 721 166 1,697ms 26 Mar 2025 837th brianlwatson 720 63 42ms 9 Dec 2020 837th Waffle3z 720 63 41ms 21 Jan 2021 837th NewDefectus 🇮🇱 720 63 36ms 10 Feb 2021 837th emgordon154 720 63 52ms 17 Nov 2024 837th olleicua 🇺🇸 720 63 40ms 13 Jun 2025 842nd EnigmaticError 720 104 1ms 27 Jan 2024 843rd CaedenHarper 🇨🇦 719 124 449ms 4 Oct 2025 844th bbakersmith 718 65 2ms 13 Jul 2021 844th armin-k1 718 65 2ms 10 Sep 2021 846th Sakaala 718 74 10ms 24 Apr 2019 846th rzana 718 74 10ms 14 Dec 2020 846th RYNO8 718 74 9ms 26 Aug 2021 846th Sloimayyy 718 74 9ms 22 Aug 2022 846th shelerr 718 74 9ms 8 Sep 2022 846th CarsonChr 🇺🇸 718 74 10ms 18 Sep 2022 846th Eilonlif 🇮🇱 718 74 12ms 7 Apr 2023 846th WillConker 718 74 10ms 16 Jul 2023 846th wyarde 718 74 9ms 7 Nov 2023 846th chartung17 718 74 9ms 10 Dec 2023 846th sultan 718 74 9ms 9 Mar 2024 846th zaki1993 718 74 9ms 28 May 2024 846th YAJUE114514 718 74 9ms 30 Jul 2025 859th MeWhenI 🇻🇦 718 85 1ms 13 Oct 2023 860th mousetail 🇳🇱 718 116 146ms 19 Jan 2024 861st CheeseCake628 🇳🇴 717 70 366ms 17 Jan 2024 862nd dokutan 717 93 2ms 26 Jul 2024 863rd dokutan 717 100 2,798ms 3 days ago 864th Natanaelel 🇸🇪 716 46 2ms 20 Jul 2023 865th destofr 716 106 119ms 19 Dec 2022 866th solmyr2000 716 130 62ms 18 Jun 2022 866th kkoenig 716 130 416ms 23 Dec 2023 866th MateuszPietrzak 🇵🇱 716 130 395ms 27 Dec 2023 869th Yewzir 🇧🇪 714 70 509ms 26 Feb 2024 869th Ripick 714 70 284ms 24 Jun 2025 869th Lv0Sys 🇵🇱 714 70 571ms 18 days ago 872nd nmandel 714 95 9ms 21 Dec 2018 872nd zbreit 🇺🇸 714 95 9ms 6 Aug 2020 872nd dzshn 714 95 9ms 7 Apr 2021 872nd inventshah 714 95 8ms 8 May 2021 872nd GeorgeStechman 🇬🇧 714 95 8ms 16 Sep 2022 872nd weliveinhell 🇭🇹 714 95 9ms 20 Dec 2023 872nd madeforlosers 714 95 9ms 3 Nov 2025 879th MeWhenI 🇻🇦 714 105 4ms 22 May 2023 879th Andriamanitra 🇫🇮 714 105 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