The Calendar hole will go live in approximately 2 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 (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 554th m-tkach 🇺🇦 874 88 10ms 23 Nov 2021 554th alasdair-greenland 874 88 9ms 23 Nov 2021 554th wansacis 🇩🇪 874 88 9ms 25 Nov 2021 554th ArmaanAS 874 88 9ms 27 Nov 2021 554th MathisBullinger 874 88 9ms 28 Nov 2021 554th c0d3-4-F00d 🇩🇪 874 88 9ms 30 Nov 2021 554th two-bad 🇬🇧 874 88 10ms 4 Dec 2021 554th Attero 🇸🇪 874 88 9ms 21 Dec 2021 554th fourth-bit 874 88 9ms 20 Jan 2022 554th voytxt 🇨🇿 874 88 10ms 11 Feb 2022 554th primo-ppcg 🇹🇭 874 88 11ms 21 Mar 2022 554th vincens2005 🇺🇸 874 88 9ms 8 Apr 2022 554th JavaScriptizer101 874 88 9ms 19 May 2022 554th stefangabos 🇷🇴 874 88 9ms 9 Sep 2022 554th raphaelimahorn 874 88 10ms 3 Oct 2022 554th moikaturns 🇬🇧 874 88 9ms 18 Oct 2022 554th Kesefon 874 88 9ms 24 Nov 2022 554th randolchance 874 88 9ms 21 Dec 2022 554th lordsnek 874 88 9ms 29 Dec 2022 554th SirFireball3521 874 88 9ms 3 Feb 2023 554th jmerle 🇳🇱 874 88 9ms 14 Feb 2023 554th AlephSquirrel 874 88 10ms 15 Feb 2023 554th Yewzir 🇧🇪 874 88 9ms 16 Apr 2023 554th zakariamouhid 874 88 10ms 20 May 2023 554th Argeento 🇵🇱 874 88 9ms 25 Aug 2023 554th jared-hughes 874 88 9ms 11 Sep 2023 554th bsara 874 88 9ms 21 Oct 2023 554th fuzzylojik-golf 🇺🇸 874 88 9ms 9 Dec 2023 554th olleicua 🇺🇸 874 88 10ms 13 Jan 2024 554th NickTheEASDude 🇺🇸 874 88 10ms 18 Jan 2024 554th Jacob385 874 88 8ms 21 Mar 2024 554th tayloia 🇬🇧 874 88 10ms 19 Jun 2024 554th alexsave 874 88 10ms 10 Sep 2024 554th xyangst 874 88 10ms 23 Sep 2024 554th Cavan-P 874 88 9ms 10 Nov 2024 554th wh3n3v3r 🇨🇿 874 88 9ms 18 Nov 2024 554th targrik 874 88 10ms 5 Feb 2025 554th BalaM314 874 88 9ms 8 Feb 2025 554th Ralac07 🇦🇺 874 88 10ms 18 Apr 2025 554th BREMAUCY 🇫🇷 874 88 9ms 29 Jun 2025 554th Protothor 874 88 9ms 2 Jul 2025 554th albanian-laundromat 874 88 9ms 1 Sep 2025 554th Yax42 🇫🇷 874 88 9ms 6 Sep 2025 554th CaedenHarper 🇨🇦 874 88 9ms 3 Oct 2025 554th KatieLG 🇬🇧 874 88 9ms 5 Oct 2025 554th snoozingnewt 🇨🇦 874 88 9ms 16 Oct 2025 554th Ow0cast 874 88 9ms 17 Oct 2025 554th luuumine 🇫🇷 874 88 9ms 3 Nov 2025 554th JOrE20 🇺🇸 874 88 10ms 3 Nov 2025 554th amazingalek 874 88 11ms 9 days ago 611th primo-ppcg 🇹🇭 874 167 78ms 10 May 2023 612th JayXon 🇺🇸 874 207 1,660ms 15 Sep 2025 613th andersk 🇺🇸 873 138 129ms 7 Nov 2022 614th primo-ppcg 🇹🇭 871 73 91ms 13 May 2022 615th prplz 🇦🇺 871 75 238ms 13 Dec 2021 615th lynn 871 75 254ms 16 Jul 2023 615th IISResetMe 871 75 257ms 9 Mar 2024 615th Jaykul 871 75 221ms 12 May 2024 619th SirBogman 🇺🇸 871 90 2ms 29 Oct 2022 619th dokutan 871 90 1ms 16 Jul 2025 621st sean-niemann 🇺🇸 871 91 7ms 29 May 2025 622nd Maashau 871 142 348ms 20 days ago 622nd amazingalek 871 142 425ms 12 days ago 624th dokutan 870 71 123ms 3 Oct 2024 625th primo-ppcg 🇹🇭 870 86 5ms 16 Aug 2023 626th ovs-code 🇩🇪 870 88 2ms 11 Oct 2023 627th MeWhenI 🇻🇦 870 131 3ms 15 Jul 2023 628th SirBogman 🇺🇸 869 137 417ms 1 Jan 2022 629th Re-Adventures 🇮🇳 868 92 5ms 7 Jul 2023 629th oddvalue 868 92 5ms 4 Aug 2023 631st yzhs 🇩🇪 868 109 129ms 16 Jun 2022 632nd primo-ppcg 🇹🇭 868 149 3ms 22 Nov 2021 632nd orthoplex 🇨🇽 868 149 3ms 8 Sep 2023 632nd SirBogman 🇺🇸 868 149 3ms 20 Oct 2023 632nd UnderKoen 🇳🇱 868 149 3ms 9 Feb 2025 636th knyghty 867 75 11ms 17 Feb 2024 637th djeedjay 🇳🇱 867 111 3ms 3 Nov 2023 638th Yax42 🇫🇷 866 106 400ms 6 Aug 2025 639th Shanethegamer 🇺🇸 865 71 41ms 30 Dec 2021 639th SirBogman 🇺🇸 865 71 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