The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Abundant Numbers (Long) in Ruby 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 1st Lydxn 🇨🇦 1,000 43 55ms 23 Nov 2022 1st m-tkach 🇺🇦 1,000 43 52ms 22 Apr 2023 3rd Shanethegamer 🇺🇸 935 46 59ms 19 Nov 2022 3rd GrayJoKing 🇦🇺 935 46 64ms 19 Nov 2022 3rd JayXon 🇺🇸 935 46 55ms 19 Nov 2022 3rd Steffan153 🇫🇮 935 46 132ms 19 Nov 2022 3rd sisyphus-ppcg 🇦🇺 935 46 65ms 20 Nov 2022 3rd MeWhenI 🇻🇦 935 46 59ms 20 Nov 2022 3rd primo-ppcg 🇹🇭 935 46 55ms 20 Nov 2022 3rd nwellnhof 🇩🇪 935 46 56ms 20 Nov 2022 3rd janlelis 935 46 60ms 29 Nov 2022 3rd stefangimmillaro 935 46 60ms 4 Dec 2022 3rd prplz 🇦🇺 935 46 61ms 17 Jan 2023 3rd ovs-code 🇩🇪 935 46 58ms 9 May 2023 3rd DialFrost 🇸🇬 935 46 62ms 3 Jun 2024 3rd mrondon8 935 46 113ms 2 Dec 2024 3rd sean-niemann 🇺🇸 935 46 110ms 5 Feb 2025 3rd pardouin 🇫🇷 935 46 65ms 10 Apr 2025 3rd blaztoma 🇱🇹 935 46 61ms 13 Oct 2025 20th SirBogman 🇺🇸 915 47 53ms 20 Nov 2022 20th Natanaelel 🇸🇪 915 47 54ms 24 Nov 2022 20th olivermrose 🇺🇸 915 47 56ms 5 Dec 2022 20th anter69 🇭🇺 915 47 56ms 31 Jan 2023 20th olleicua 🇺🇸 915 47 53ms 2 Feb 2024 20th aydamak 915 47 55ms 17 May 2024 20th emgordon154 915 47 56ms 13 Jun 2024 20th error256 915 47 112ms 3 Jul 2024 20th TFeld00 🇩🇰 915 47 57ms 3 Sep 2024 20th tatzyr 🇯🇵 915 47 56ms 23 Oct 2024 20th Babafaba 915 47 57ms 15 Oct 2025 20th Matter1024 🇮🇳 915 47 73ms 14 Nov 2025 32nd Just4FunCoder 896 48 57ms 2 Jul 2024 33rd KatieLG 🇬🇧 878 49 53ms 10 Jan 2023 33rd Haksell 🇦🇶 878 49 69ms 22 Feb 2023 33rd Andriamanitra 🇫🇮 878 49 56ms 26 Apr 2023 33rd yzhs 🇩🇪 878 49 52ms 21 Jun 2023 33rd aaronze 🇦🇺 878 49 59ms 17 Sep 2023 33rd dokutan 878 49 55ms 5 Sep 2024 33rd edsrzf 🇳🇿 878 49 56ms 21 Jan 2025 33rd csharpython 878 49 53ms 23 Jul 2025 33rd snoozingnewt 🇨🇦 878 49 65ms 9 Oct 2025 42nd jared-hughes 860 50 56ms 19 Nov 2022 42nd moozzi 860 50 53ms 17 days ago 44th adoxography 843 51 56ms 29 Mar 2023 44th lacrosse 843 51 55ms 26 days ago 44th TheZwierzLF 🇵🇱 843 51 56ms 3 days ago 47th ejini6969 827 52 55ms 26 Mar 2023 47th annaproxy 827 52 69ms 8 Sep 2023 49th rak1507 🇬🇧 811 53 56ms 3 Dec 2022 49th sreedevk 🇺🇸 811 53 61ms 4 Dec 2022 51st fynnkroeger 796 54 54ms 10 Dec 2022 51st paul-c-hartman 796 54 53ms 8 Mar 2025 51st albanian-laundromat 796 54 56ms 1 Oct 2025 54th janbehrens 🇩🇪 768 56 59ms 20 Nov 2022 54th Yewzir 🇧🇪 768 56 55ms 7 Feb 2024 54th Ralac07 🇦🇺 768 56 57ms 18 Jun 2024 54th catflip 768 56 54ms 24 Aug 2025 58th Ailko 🇧🇪 754 57 54ms 3 Feb 2023 58th Eebil 754 57 53ms 17 Mar 2023 58th AetherQuantity 754 57 53ms 21 Oct 2025 61st bryanmytko 632 68 53ms 7 Sep 2023 62nd aksyristos 581 74 64ms 31 Jan 2023 63rd msbranicky 500 86 47ms 7 Sep 2023 64th StronkCheese 🇺🇸 426 101 49ms 29 Jan 2023 65th HumanoidCPU 85 507 36ms 10 Jan 2025 66th retrohun 44 969 36ms 27 Dec 2022 66th Mabeloid 🇳🇴 44 969 37ms 18 Sep 2024 66th CaedenHarper 🇨🇦 44 969 37ms 16 Aug 2025 69th KatieLG-Transpiler 🇬🇧 44 979 41ms 21 Nov 2022 1–69 of 69