The Calendar hole will go live in approximately 9 days. Why not try and solve it ahead of time?
Morse Encoder in all languages 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 161st Bubbler-4 814 88 3ms 24 Feb 2022 162nd anter69 🇭🇺 813 99 47ms 17 Jan 2023 163rd MeWhenI 🇻🇦 813 130 3ms 15 Feb 2025 164th SirBogman 🇺🇸 813 135 33ms 28 Nov 2023 165th MeWhenI 🇻🇦 812 153 6ms 9 May 2024 166th GolfingSuccess 🇬🇷 811 115 10ms 10 Oct 2020 167th rucin93 🇵🇱 810 171 659ms 24 Sep 2025 168th GolfingSuccess 🇬🇷 807 107 359ms 25 Jan 2025 169th inventshah 807 168 510ms 20 May 2025 170th KatieLG 🇬🇧 804 116 10ms 11 Dec 2022 171st ovs-code 🇩🇪 803 150 2ms 18 Oct 2024 172nd leon-w 797 117 16ms 5 Jan 2019 173rd ETHproductions 🇺🇸 796 137 9ms 27 Apr 2018 174th lynn 796 179 13ms 23 Jul 2021 175th MeWhenI 🇻🇦 794 207 3ms 29 Jul 2023 176th adyache 🇺🇸 793 214 8ms 30 Jun 2023 177th AlephSquirrel 792 191 5ms 24 Oct 2024 178th MeWhenI 🇻🇦 791 204 310ms 8 Feb 2023 179th primo-ppcg 🇹🇭 790 129 1,318ms 5 Dec 2021 180th lynn 789 216 174ms 1 May 2022 181st marshallward 🇺🇸 788 228 41ms 7 May 2025 182nd potatoattack 787 205 282ms 22 Apr 2020 183rd Waffle3z 786 188 2ms 8 Apr 2022 184th emgordon154 785 110 409ms 4 Sep 2025 185th MeWhenI 🇻🇦 782 154 2ms 5 Jul 2024 186th kumavale 778 219 146ms 8 Sep 2025 187th FlorianCassayre 🇫🇷 777 120 11ms 18 Sep 2023 188th ReidZ3 🇺🇸 777 230 125ms 2 Dec 2020 189th UnderKoen 🇳🇱 777 340 2ms 9 Jul 2024 190th SirBogman 🇺🇸 774 104 45ms 27 Jan 2024 191st lynn 773 235 29ms 6 Aug 2023 192nd j-Ewan 771 121 16ms 1 Feb 2022 193rd JayXon 🇺🇸 770 89 2ms 28 Aug 2021 194th MeWhenI 🇻🇦 770 202 2ms 10 Sep 2022 195th MeWhenI 🇻🇦 767 188 40ms 17 Feb 2023 196th MeWhenI 🇻🇦 767 198 368ms 27 Jul 2024 197th ovs-code 🇩🇪 766 187 113ms 24 Sep 2023 198th GrayJoKing 🇦🇺 764 113 393ms 23 Jul 2024 199th dokutan 764 122 10ms 6 Nov 2024 200th user189032 764 234 124ms 29 May 2019 201st rambox11 762 143 9ms 6 Dec 2019 202nd Steffan153 🇫🇮 761 140 347ms 24 Feb 2023 202nd sean-niemann 🇺🇸 761 140 347ms 2 Nov 2023 204th SirBogman 🇺🇸 754 95 3ms 8 Nov 2023 204th lifthrasiir 🇰🇷 754 95 3ms 4 Dec 2024 206th Irratix 🇳🇱 753 160 2ms 25 Feb 2022 207th olivermrose 🇺🇸 752 107 74ms 4 Feb 2022 208th edre 752 124 10ms 30 Apr 2018 209th albanian-laundromat 750 130 947ms 26 Oct 2025 210th MeWhenI 🇻🇦 747 146 10ms 1 Mar 2022 211th andersk 🇺🇸 747 228 156ms 5 Jan 2020 212th snoozingnewt 🇨🇦 746 125 12ms 24 days ago 213th KatieLG 🇬🇧 745 116 391ms 28 Oct 2024 214th namelessiw 740 144 401ms 29 Jul 2024 215th MarcMush 🇫🇷 739 118 1,391ms 11 Jan 2024 216th lynn 738 204 1,389ms 27 Oct 2021 217th MeWhenI 🇻🇦 738 246 27ms 6 Jun 2023 218th Irratix 🇳🇱 737 184 470ms 3 Aug 2023 219th ndren 734 127 9ms 3 Aug 2025 220th tayloia 🇬🇧 732 149 10ms 17 Jan 2023 221st nwellnhof 🇩🇪 731 154 8ms 12 Jul 2022 222nd MeWhenI 🇻🇦 729 190 590ms 7 Nov 2025 223rd timvermeulen 725 235 144ms 5 Jan 2020 224th jared-hughes 724 204 1ms 17 Jul 2022 225th albanian-laundromat 723 129 9ms 6 Nov 2025 226th mrxz 🇳🇱 722 151 9ms 27 Jun 2019 226th thisishowmymindworks 🇳🇴 722 151 10ms 24 Aug 2020 228th MeWhenI 🇻🇦 721 201 44ms 4 Sep 2024 229th dokutan 720 211 3ms 11 days ago 230th error256 719 112 48ms 23 May 2025 231st lelbal 717 130 10ms 23 Jun 2025 232nd dokutan 717 136 835ms 30 Aug 2025 233rd Argeento 🇵🇱 717 152 9ms 25 Aug 2023 234th Steffan153 🇫🇮 717 193 669ms 24 Feb 2023 235th emgordon154 717 387 568ms 22 May 2025 236th MeWhenI 🇻🇦 716 158 4ms 28 May 2023 237th MeWhenI 🇻🇦 716 183 438ms 28 Feb 2022 238th snoozingnewt 🇨🇦 714 121 419ms 24 days ago 239th albanian-laundromat 713 218 3ms 19 Sep 2025 240th RYNO8 712 131 10ms 14 Oct 2021 First Prev 161–240 of 979 Next Last
