The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Foo Fizz Buzz Bar 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 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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 551st ArmaanAS 874 88 9ms 27 Nov 2021 551st MathisBullinger 874 88 9ms 28 Nov 2021 551st c0d3-4-F00d 🇩🇪 874 88 9ms 30 Nov 2021 551st two-bad 🇬🇧 874 88 10ms 4 Dec 2021 551st Attero 🇸🇪 874 88 9ms 21 Dec 2021 551st fourth-bit 874 88 9ms 20 Jan 2022 551st voytxt 🇨🇿 874 88 10ms 11 Feb 2022 551st primo-ppcg 🇹🇭 874 88 11ms 21 Mar 2022 551st vincens2005 🇺🇸 874 88 9ms 8 Apr 2022 551st JavaScriptizer101 874 88 9ms 19 May 2022 551st stefangabos 🇷🇴 874 88 9ms 9 Sep 2022 551st raphaelimahorn 874 88 10ms 3 Oct 2022 551st moikaturns 🇬🇧 874 88 9ms 18 Oct 2022 551st Kesefon 874 88 9ms 24 Nov 2022 551st randolchance 874 88 9ms 21 Dec 2022 551st lordsnek 874 88 9ms 29 Dec 2022 551st SirFireball3521 874 88 9ms 3 Feb 2023 551st jmerle 🇳🇱 874 88 9ms 14 Feb 2023 551st AlephSquirrel 874 88 10ms 15 Feb 2023 551st Yewzir 🇧🇪 874 88 9ms 16 Apr 2023 551st zakariamouhid 874 88 10ms 20 May 2023 551st Argeento 🇵🇱 874 88 9ms 25 Aug 2023 551st jared-hughes 874 88 9ms 11 Sep 2023 551st bsara 874 88 9ms 21 Oct 2023 551st fuzzylojik-golf 🇺🇸 874 88 9ms 9 Dec 2023 551st olleicua 🇺🇸 874 88 10ms 13 Jan 2024 551st NickTheEASDude 🇺🇸 874 88 10ms 18 Jan 2024 551st Jacob385 874 88 8ms 21 Mar 2024 551st tayloia 🇬🇧 874 88 10ms 19 Jun 2024 551st alexsave 874 88 10ms 10 Sep 2024 551st xyangst 874 88 10ms 23 Sep 2024 551st Cavan-P 874 88 9ms 10 Nov 2024 551st wh3n3v3r 🇨🇿 874 88 9ms 18 Nov 2024 551st targrik 874 88 10ms 5 Feb 2025 551st BalaM314 874 88 9ms 8 Feb 2025 551st Ralac07 🇦🇺 874 88 10ms 18 Apr 2025 551st BREMAUCY 🇫🇷 874 88 9ms 29 Jun 2025 551st Protothor 874 88 9ms 2 Jul 2025 551st albanian-laundromat 874 88 9ms 1 Sep 2025 551st Yax42 🇫🇷 874 88 9ms 6 Sep 2025 551st CaedenHarper 🇨🇦 874 88 9ms 3 Oct 2025 551st KatieLG 🇬🇧 874 88 9ms 5 Oct 2025 551st snoozingnewt 🇨🇦 874 88 9ms 16 Oct 2025 551st Ow0cast 874 88 9ms 17 Oct 2025 551st luuumine 🇫🇷 874 88 9ms 3 Nov 2025 551st JOrE20 🇺🇸 874 88 10ms 3 Nov 2025 607th primo-ppcg 🇹🇭 874 167 78ms 10 May 2023 608th MeWhenI 🇻🇦 874 188 441ms 28 Mar 2025 608th emgordon154 874 188 473ms 8 Jul 2025 610th JayXon 🇺🇸 874 207 1,660ms 15 Sep 2025 611th andersk 🇺🇸 873 138 129ms 7 Nov 2022 612th primo-ppcg 🇹🇭 871 73 100ms 13 May 2022 613th prplz 🇦🇺 871 75 247ms 13 Dec 2021 613th lynn 871 75 256ms 16 Jul 2023 613th IISResetMe 871 75 278ms 9 Mar 2024 613th Jaykul 871 75 253ms 12 May 2024 617th SirBogman 🇺🇸 871 90 2ms 29 Oct 2022 617th dokutan 871 90 1ms 16 Jul 2025 617th albanian-laundromat 871 90 2ms 26 Sep 2025 620th sean-niemann 🇺🇸 871 91 7ms 29 May 2025 621st Maashau 871 142 348ms 9 days ago 621st amazingalek 871 142 526ms 30 hours ago 623rd dokutan 870 71 123ms 3 Oct 2024 624th primo-ppcg 🇹🇭 870 86 5ms 16 Aug 2023 625th ovs-code 🇩🇪 870 88 2ms 11 Oct 2023 626th MeWhenI 🇻🇦 870 131 3ms 15 Jul 2023 627th SirBogman 🇺🇸 869 137 425ms 1 Jan 2022 628th Re-Adventures 🇮🇳 868 92 5ms 7 Jul 2023 628th oddvalue 868 92 5ms 4 Aug 2023 630th yzhs 🇩🇪 868 109 129ms 16 Jun 2022 631st primo-ppcg 🇹🇭 868 149 3ms 22 Nov 2021 631st orthoplex 🇨🇽 868 149 3ms 8 Sep 2023 631st SirBogman 🇺🇸 868 149 3ms 20 Oct 2023 631st UnderKoen 🇳🇱 868 149 3ms 9 Feb 2025 635th knyghty 867 75 11ms 17 Feb 2024 636th djeedjay 🇳🇱 867 111 3ms 3 Nov 2023 637th Yax42 🇫🇷 866 106 400ms 6 Aug 2025 638th Shanethegamer 🇺🇸 865 71 47ms 30 Dec 2021 638th SirBogman 🇺🇸 865 71 37ms 21 May 2022 640th ovs-code 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