The Calendar hole will go live in approximately 9 days. Why not try and solve it ahead of time?
Morse Encoder in Python 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 JayXon 🇺🇸 1,000 95 10ms 13 Feb 2023 2nd Steffan153 🇫🇮 979 97 11ms 12 Feb 2023 2nd btnlq 979 97 10ms 13 Feb 2023 2nd neel11235813 979 97 18ms 19 Feb 2023 2nd sean-niemann 🇺🇸 979 97 10ms 24 Aug 2025 6th primo-ppcg 🇹🇭 969 98 11ms 5 Dec 2021 7th pardouin 🇫🇷 960 99 10ms 12 Jul 2024 8th hallvabo 🇳🇴 922 103 16ms 9 Apr 2022 9th kg583 🇺🇸 913 104 17ms 19 Jul 2024 9th duckyluuk 🇳🇱 913 104 16ms 29 Aug 2024 11th lifthrasiir 🇰🇷 905 105 10ms 4 Dec 2024 12th orthoplex 🇨🇽 896 106 17ms 3 Apr 2022 13th anter69 🇭🇺 888 107 16ms 14 Jan 2023 13th plcc0 888 107 16ms 5 Oct 2025 15th MeWhenI 🇻🇦 880 108 10ms 29 Nov 2021 16th Artemis21 🇬🇧 872 109 10ms 10 Jan 2025 17th prplz 🇦🇺 864 110 10ms 19 Oct 2020 17th SirBogman 🇺🇸 864 110 16ms 22 Jan 2024 17th emgordon154 864 110 16ms 4 Sep 2025 20th ZakkkkAttackkkk 🇵🇭 856 111 10ms 19 Sep 2023 21st GrayJoKing 🇦🇺 841 113 16ms 20 Oct 2020 21st TFeld00 🇩🇰 841 113 10ms 18 Nov 2020 21st DialFrost 🇸🇬 841 113 16ms 15 Jan 2023 24th Irratix 🇳🇱 833 114 10ms 7 May 2022 25th GolfingSuccess 🇬🇷 826 115 10ms 10 Oct 2020 26th KatieLG 🇬🇧 819 116 10ms 11 Dec 2022 27th leon-w 812 117 16ms 5 Jan 2019 27th CornerMercury 🇬🇧 812 117 11ms a min ago 29th FlorianCassayre 🇫🇷 792 120 11ms 18 Sep 2023 30th j-Ewan 785 121 16ms 1 Feb 2022 31st dokutan 779 122 10ms 6 Nov 2024 32nd edre 766 124 10ms 30 Apr 2018 33rd snoozingnewt 🇨🇦 760 125 12ms 24 days ago 34th ndren 748 127 9ms 3 Aug 2025 35th albanian-laundromat 736 129 9ms 6 Nov 2025 36th lelbal 731 130 10ms 23 Jun 2025 37th RYNO8 725 131 10ms 14 Oct 2021 38th jacklynnepenick 714 133 11ms 15 Aug 2021 39th adamnielson42 🇺🇸 683 139 10ms 26 May 2023 40th Eilonlif 🇮🇱 679 140 10ms 27 Oct 2022 41st b10011 🇫🇮 674 141 16ms 29 Dec 2022 42nd 5cw 🇺🇸 651 146 10ms 2 Nov 2025 43rd ovs-code 🇩🇪 646 147 10ms 16 Feb 2025 44th Seek64 🇩🇪 638 149 10ms 22 Sep 2024 45th inventshah 613 155 10ms 24 Jan 2023 45th AlephSquirrel 613 155 9ms 27 Aug 2023 45th mateusz-sterczewski 613 155 10ms 20 Nov 2024 48th StardustGogeta 601 158 16ms 5 Aug 2020 48th zbreit 🇺🇸 601 158 10ms 5 Aug 2020 48th rschwa6308 🇺🇸 601 158 11ms 6 Aug 2020 48th thisishowmymindworks 🇳🇴 601 158 10ms 12 Oct 2020 52nd ryyyn 🇺🇸 597 159 10ms 18 days ago 53rd blaztoma 🇱🇹 590 161 17ms 40 mins ago 54th marcin7Cd 579 164 10ms 14 Mar 2020 54th bricknellj 579 164 10ms 20 Feb 2023 56th daedals 576 165 9ms 29 May 2019 56th jared-hughes 576 165 10ms 10 Jan 2023 58th jakobkordez 🇸🇮 569 167 10ms 31 Oct 2022 59th shelerr 559 170 10ms 21 Aug 2025 60th RDShah 546 174 18ms 1 Dec 2019 61st stefangimmillaro 543 175 10ms 29 Dec 2022 62nd Lv0Sys 🇵🇱 540 176 10ms 21 days ago 63rd benwilliamgraham 534 178 10ms 26 Jan 2019 64th annaproxy 531 179 9ms 22 Feb 2023 65th abailey2020 🇺🇸 528 180 9ms 18 Aug 2020 65th ydevor 🇮🇱 528 180 10ms 16 Feb 2021 65th Omega65536 🇩🇪 528 180 9ms 10 Aug 2025 65th robin-scragg 528 180 10ms 18 Oct 2025 69th dzhang314 522 182 16ms 15 Aug 2019 69th davecame 522 182 9ms 22 Nov 2023 71st commandblockguy 🇺🇸 519 183 17ms 30 Apr 2023 72nd NewDefectus 🇮🇱 516 184 10ms 1 Nov 2021 72nd janbehrens 🇩🇪 516 184 10ms 17 Jun 2023 72nd Troon 516 184 9ms 18 Apr 2025 75th qpwoeirut 514 185 10ms 20 Oct 2025 76th quimey 511 186 10ms 17 Jul 2023 76th BREMAUCY 🇫🇷 511 186 9ms 21 Aug 2025 78th CedricGebistorf 508 187 9ms 4 Mar 2022 78th pyrolitic 🇮🇪 508 187 17ms 6 Apr 2022 78th ahmetdemirag 🇨🇾 508 187 10ms 19 Nov 2024 1–80 of 282 Next Last
