The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Ordinal Numbers 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 primo-ppcg 🇹🇭 1,000 46 49ms 12 Jul 2019 2nd sisyphus-ppcg 🇦🇺 958 48 54ms 6 Apr 2021 2nd janlelis 958 48 38ms 8 Apr 2021 2nd Lydxn 🇨🇦 958 48 36ms 5 Sep 2021 2nd MeWhenI 🇻🇦 958 48 47ms 13 Aug 2022 2nd Steffan153 🇫🇮 958 48 40ms 18 Dec 2022 2nd DialFrost 🇸🇬 958 48 34ms 28 Jan 2023 2nd sean-niemann 🇺🇸 958 48 36ms 28 Jan 2023 2nd xsot 🇸🇬 958 48 54ms 15 May 2023 2nd stefangimmillaro 958 48 37ms 16 Jun 2023 2nd ovs-code 🇩🇪 958 48 44ms 21 Mar 2024 2nd radarek 🇵🇱 958 48 40ms 26 Dec 2024 2nd pardouin 🇫🇷 958 48 34ms 6 Sep 2025 14th GrayJoKing 🇦🇺 902 51 45ms 19 Jan 2023 15th prplz 🇦🇺 868 53 70ms 7 Jun 2020 15th olivermrose 🇺🇸 868 53 37ms 4 Dec 2021 15th nwellnhof 🇩🇪 868 53 45ms 28 Dec 2021 15th JayXon 🇺🇸 868 53 58ms 22 Feb 2025 19th tatzyr 🇯🇵 836 55 52ms 24 Nov 2024 20th jbbarth 🇫🇷 821 56 40ms 10 Aug 2021 20th SirBogman 🇺🇸 821 56 48ms 21 May 2022 22nd anter69 🇭🇺 807 57 72ms 2 Apr 2024 23rd proton 🇩🇪 780 59 50ms 20 Jun 2020 24th KatieLG 🇬🇧 767 60 34ms 2 Oct 2025 25th biinari 742 62 38ms 13 Aug 2020 25th Shanethegamer 🇺🇸 742 62 48ms 12 Dec 2021 27th hiddicop 🇸🇪 719 64 36ms 25 Jan 2021 27th aaronze 🇦🇺 719 64 37ms 17 Sep 2023 29th Andriamanitra 🇫🇮 708 65 37ms 1 Sep 2022 29th jared-hughes 708 65 37ms 10 Sep 2022 31st Haksell 🇦🇶 697 66 40ms 22 Feb 2023 32nd Natanaelel 🇸🇪 687 67 37ms 18 Jul 2023 33rd emgordon154 676 68 48ms 2 Dec 2021 33rd olleicua 🇺🇸 676 68 39ms 10 Jan 2024 33rd csharpython 676 68 37ms 27 Jul 2025 36th aksyristos 667 69 38ms 31 Jan 2023 37th SnowballSH 657 70 39ms 13 Feb 2021 38th Thinkr1 639 72 35ms 18 Nov 2025 39th reireias 630 73 40ms 31 Jul 2019 40th swanmatch 622 74 41ms 25 Oct 2019 41st JRaspass 🇬🇧 613 75 50ms 13 Apr 2021 42nd DaCuteRaccoon 605 76 48ms 16 May 2022 42nd 4hg 🇺🇸 605 76 37ms 27 Jan 2023 44th adoxography 597 77 46ms 6 Jan 2020 45th boxjelly 575 80 44ms 10 Feb 2021 46th n1LS 568 81 44ms 25 Sep 2019 47th TheZwierzLF 🇵🇱 561 82 38ms 21 hours ago 48th Waffle3z 554 83 44ms 6 Oct 2020 49th MadonnaMat 548 84 38ms 9 Jul 2021 50th dokutan 535 86 51ms 28 Sep 2024 51st jaredcrystal 🇺🇸 529 87 35ms 1 Aug 2019 52nd flavono123 523 88 47ms 19 Jul 2019 52nd schachmattmatt 523 88 36ms 11 Aug 2021 52nd yobatm 523 88 33ms 3 Aug 2025 55th BREMAUCY 🇫🇷 511 90 38ms 15 Apr 2024 56th handisb 460 100 37ms 11 Feb 2020 57th snltd 455 101 48ms 16 Aug 2019 57th ComputerKWasTaken 🇺🇸 455 101 51ms 11 Jul 2024 59th aydamak 390 118 37ms 17 May 2024 60th Ralac07 🇦🇺 365 126 47ms 17 Jun 2024 61st KatieLG-Transpiler 🇬🇧 3 15,869 117ms 3 Jul 2022 1–61 of 61