The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Pangram Grep 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 39 46ms 29 Oct 2021 1st sisyphus-ppcg 🇦🇺 1,000 39 37ms 3 Feb 2022 1st nwellnhof 🇩🇪 1,000 39 46ms 25 May 2022 4th janlelis 951 41 52ms 8 Apr 2019 4th primo-ppcg 🇹🇭 951 41 44ms 3 Jan 2020 4th olivermrose 🇺🇸 951 41 42ms 30 Aug 2021 4th GrayJoKing 🇦🇺 951 41 62ms 29 Oct 2021 4th JayXon 🇺🇸 951 41 48ms 29 Oct 2021 4th Natanaelel 🇸🇪 951 41 49ms 29 Oct 2021 4th ovs-code 🇩🇪 951 41 54ms 14 Feb 2023 4th Steffan153 🇫🇮 951 41 59ms 31 May 2023 4th tatzyr 🇯🇵 951 41 48ms 31 Dec 2024 4th sean-niemann 🇺🇸 951 41 61ms 10 Mar 2025 14th meenie 929 42 45ms 1 Jan 2021 14th stefangimmillaro 929 42 39ms 1 Jan 2021 14th MeWhenI 🇻🇦 929 42 42ms 9 Dec 2021 14th emgordon154 929 42 40ms 12 Dec 2021 14th 4hg 🇺🇸 929 42 48ms 22 Aug 2022 14th olleicua 🇺🇸 929 42 49ms 26 Feb 2024 14th DialFrost 🇸🇬 929 42 47ms 1 Jun 2024 14th pardouin 🇫🇷 929 42 37ms 12 Aug 2025 14th blaztoma 🇱🇹 929 42 40ms 26 Oct 2025 23rd jared-hughes 907 43 47ms 12 Sep 2022 23rd error256 907 43 50ms 12 Jul 2025 25th prplz 🇦🇺 886 44 43ms 3 Jan 2020 25th SirBogman 🇺🇸 886 44 41ms 17 Jan 2020 25th jstanley0 886 44 56ms 12 Dec 2020 25th rak1507 🇬🇧 886 44 42ms 22 Dec 2020 25th gilufin 886 44 49ms 1 Jun 2021 25th jbbarth 🇫🇷 886 44 52ms 13 Aug 2021 25th akshatj27 🇦🇶 886 44 42ms 11 Jan 2022 25th orthoplex 🇨🇽 886 44 43ms 30 Mar 2022 25th KatieLG 🇬🇧 886 44 43ms 10 Apr 2022 25th Andriamanitra 🇫🇮 886 44 44ms 23 Sep 2022 25th anter69 🇭🇺 886 44 42ms 1 Jun 2023 25th Lv0Sys 🇵🇱 886 44 45ms 26 days ago 37th jaredcrystal 🇺🇸 867 45 55ms 14 Dec 2020 37th mrondon8 867 45 46ms 12 Sep 2021 37th acornellier 867 45 44ms 1 Dec 2021 37th Haksell 🇦🇶 867 45 53ms 22 Feb 2023 41st adoxography 848 46 51ms 26 Sep 2019 41st kinduff 848 46 50ms 9 Aug 2020 41st Shanethegamer 🇺🇸 848 46 49ms 7 Jul 2021 41st annaproxy 848 46 45ms 4 Jan 2022 41st scpchicken 🇵🇼 848 46 43ms 12 May 2022 41st edsrzf 🇳🇿 848 46 39ms 29 Sep 2024 47th snltd 830 47 42ms 14 Aug 2019 47th hiddicop 🇸🇪 830 47 48ms 27 Jan 2021 47th aksyristos 830 47 48ms 31 Jan 2023 50th clupasq 813 48 42ms 3 Feb 2018 50th fynnkroeger 813 48 50ms 17 Apr 2023 52nd biinari 796 49 48ms 25 Mar 2018 52nd segiddins 796 49 42ms 24 Aug 2018 52nd TFeld00 🇩🇰 796 49 42ms 7 Jun 2019 52nd Thinkr1 796 49 40ms 18 Nov 2025 56th proton 🇩🇪 780 50 42ms 9 Jun 2020 56th Irratix 🇳🇱 780 50 46ms 4 Mar 2022 56th AetherQuantity 780 50 45ms 21 Oct 2025 59th HallMatthew314 765 51 50ms 15 Sep 2022 59th Pluviolithic 765 51 50ms 17 Oct 2023 61st robymus 750 52 44ms 18 Sep 2018 61st sapphyrus 750 52 49ms 18 Feb 2020 61st fitzdotlol 🇺🇸 750 52 48ms 27 Jan 2021 61st takebackfr 750 52 41ms 7 Dec 2021 61st BREMAUCY 🇫🇷 750 52 41ms 26 Sep 2023 61st gabe-gallegos 750 52 54ms 15 May 2024 67th HumanoidCPU 722 54 43ms 4 Jul 2024 67th TheZwierzLF 🇵🇱 722 54 38ms 4 days ago 69th shraiwi 709 55 45ms 1 Jun 2020 69th dokutan 709 55 40ms 17 May 2025 71st schachmattmatt 684 57 49ms 11 Aug 2021 71st AlephSquirrel 684 57 39ms 7 Mar 2023 71st LostSyntax21 🇬🇧 684 57 40ms 12 Mar 2025 71st snoozingnewt 🇨🇦 684 57 49ms 12 Oct 2025 75th yzhs 🇩🇪 672 58 38ms 20 Jul 2022 75th max-barstow 672 58 53ms 6 Oct 2022 75th janbehrens 🇩🇪 672 58 52ms 27 Nov 2022 78th boxjelly 650 60 39ms 12 Feb 2021 78th ejini6969 650 60 47ms 14 Jun 2025 80th hrrs01 639 61 44ms 29 Jan 2019 1–80 of 106 Next Last