The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Quine 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 110th Mortis66666 179 28 37ms 3 Jun 2022 110th abrn 179 28 32ms 30 Jul 2022 110th aksyristos 179 28 31ms 8 Oct 2022 110th luni-moon 🇺🇸 179 28 35ms 23 Dec 2022 110th MCausc78 🇺🇦 179 28 36ms 5 Jan 2023 110th Betuaredead 179 28 32ms 14 Jan 2023 110th Iznoanygod 🇺🇸 179 28 32ms 3 Mar 2023 110th HumanoidCPU 179 28 32ms 3 Aug 2023 110th adamnielson42 🇺🇸 179 28 32ms 12 Dec 2023 110th epic-programmer-guy 179 28 33ms 19 Dec 2023 110th kkoenig 179 28 36ms 20 Dec 2023 110th wenbang24 179 28 36ms 29 Mar 2024 110th ComputerKWasTaken 🇺🇸 179 28 44ms 4 Jun 2024 110th kroolp 🇵🇱 179 28 42ms 6 Jul 2024 110th wowu 179 28 44ms 19 Sep 2024 110th abhishekg999 179 28 36ms 22 Sep 2024 110th lifthrasiir 🇰🇷 179 28 32ms 9 Nov 2024 110th Quirkly-Quasar 179 28 34ms 25 Nov 2024 110th sciencejiho 179 28 32ms 10 Feb 2025 110th codereport 🇨🇦 179 28 37ms 19 Apr 2025 110th gigaprofisi 🇺🇸 179 28 47ms 28 Jun 2025 110th Code-Coder-coder 179 28 32ms 11 Oct 2025 110th blaztoma 🇱🇹 179 28 36ms 16 Oct 2025 110th Babafaba 179 28 41ms 23 Oct 2025 110th Matter1024 🇮🇳 179 28 54ms 15 Nov 2025 110th Thinkr1 179 28 37ms 18 Nov 2025 187th LlamaLad7 🇬🇧 172 29 37ms 14 Mar 2020 187th dakalamin 172 29 32ms 23 May 2021 187th pandapawskat 172 29 37ms 2 Sep 2021 187th shellbertt 🇨🇦 172 29 48ms 3 Nov 2021 187th pyrolitic 🇮🇪 172 29 42ms 27 Apr 2022 187th CiucaRazvan 172 29 32ms 29 Jul 2022 187th Posandu 172 29 43ms 24 Oct 2022 187th StHagel 172 29 44ms 13 Jul 2023 187th esckbd 172 29 39ms 6 Jul 2024 187th Unknownuserfrommars 172 29 34ms 5 Aug 2025 187th logalex8369 🇺🇸 172 29 53ms 21 mins ago 198th marshallku 🇰🇷 167 30 37ms 12 Sep 2020 198th badboj40 167 30 33ms 28 Mar 2023 200th charliegaming 161 31 33ms 4 Oct 2023 201st andrew3600 152 33 36ms 20 Aug 2018 201st leon-w 152 33 42ms 13 Jul 2019 201st jlscheerer 152 33 44ms 29 Aug 2019 201st Chesium 152 33 33ms 6 Aug 2020 205th Ashikpaul 🇮🇳 147 34 35ms 28 Apr 2021 206th RustemB 🇷🇺 143 35 39ms 12 Sep 2018 206th lowlighter 143 35 36ms 1 Nov 2020 208th Haksell 🇦🇶 135 37 41ms 11 Apr 2020 209th omurakazuaki 🇯🇵 104 48 44ms 20 Sep 2019 210th biinari 94 53 32ms 25 Mar 2018 211th snltd 93 54 41ms 18 Aug 2019 212th idoschor 88 57 48ms 28 Dec 2020 213th kenballus 76 66 35ms 6 Dec 2019 214th Kyrremann 66 76 39ms 15 Jan 2020 215th mothcolada 🇺🇸 63 79 33ms 26 May 2021 216th segiddins 47 107 44ms 24 Aug 2018 217th mochaaP 10 492 37ms 6 Aug 2020 218th TaserTheFox 🇺🇸 10 499 41ms 19 May 2023 First Prev 161–218 of 218
