The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
Morse Encoder in JavaScript in bytes. 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 Bytes Time Submitted 1st JayXon 🇺🇸 1,000 141 10ms 19 Dec 2020 2nd Steffan153 🇫🇮 993 142 10ms 24 Feb 2023 2nd sean-niemann 🇺🇸 993 142 9ms 11 Jun 2023 4th primo-ppcg 🇹🇭 972 145 10ms 5 Dec 2021 5th dmrichwa 🇺🇸 953 148 9ms 20 Jan 2024 6th Irratix 🇳🇱 916 154 9ms 14 Jan 2023 6th rucin93 🇵🇱 916 154 9ms 5 Mar 2023 6th Argeento 🇵🇱 916 154 9ms 25 Aug 2023 9th emplv 🇱🇻 910 155 9ms 3 Dec 2020 10th vlpx 🇫🇮 898 157 9ms 1 Aug 2024 11th prplz 🇦🇺 860 164 10ms 3 Nov 2020 12th aditsu 844 167 9ms 29 Dec 2019 12th jared-hughes 844 167 9ms 22 Dec 2022 14th cywong-amino 🇭🇰 792 178 9ms 7 Oct 2020 14th tomtheisen 🇺🇸 792 178 10ms 15 Oct 2020 16th janbehrens 🇩🇪 770 183 10ms 18 May 2023 17th targrik 762 185 9ms 7 Jun 2025 18th PatrickStephansen 🇿🇦 758 186 9ms 15 Apr 2021 19th NewDefectus 🇮🇱 754 187 9ms 26 Oct 2020 20th ETHproductions 🇺🇸 746 189 9ms 27 Apr 2018 21st weliveinhell 🇭🇹 738 191 10ms 24 Sep 2023 22nd nathanadams 🇳🇿 727 194 10ms 7 Sep 2021 22nd Natanaelel 🇸🇪 727 194 10ms 9 Jun 2023 24th MeWhenI 🇻🇦 723 195 10ms 3 Aug 2024 25th mrxz 🇳🇱 719 196 9ms 27 Jun 2019 26th tayloia 🇬🇧 709 199 10ms 17 Jan 2023 27th voytxt 🇨🇿 691 204 10ms 30 Jul 2024 27th emgordon154 691 204 10ms 9 Aug 2024 29th KatieLG 🇬🇧 688 205 10ms 16 Apr 2021 30th thisishowmymindworks 🇳🇴 678 208 10ms 5 Oct 2020 31st user189032 671 210 10ms 29 May 2019 32nd BambooleanLogic 🇸🇪 668 211 9ms 19 Oct 2022 33rd Lv0Sys 🇵🇱 665 212 9ms 18 days ago 34th frobinsonj 632 223 10ms 28 Mar 2018 35th alexsave 629 224 10ms 5 days ago 36th elisherer 🇮🇱 616 229 10ms 13 Apr 2019 37th ArmaanAS 613 230 10ms 25 Mar 2021 38th alexkunin 600 235 10ms 4 Jul 2019 39th coreynash 595 237 9ms 28 May 2024 40th Andrey-Plotnikov 571 247 9ms 9 Nov 2024 41st two-bad 🇬🇧 544 259 10ms 28 Feb 2024 42nd skps2010 538 262 9ms 29 Dec 2018 42nd helbling 🇨🇭 538 262 10ms 15 Jun 2024 44th raphaelimahorn 534 264 9ms 18 Aug 2021 45th didion0 🇺🇸 532 265 9ms 2 Feb 2021 46th moikaturns 🇬🇧 507 278 9ms 10 Nov 2022 47th zakariamouhid 493 286 9ms 27 Feb 2023 48th trinityy-7 486 290 9ms 19 Jul 2023 48th wh3n3v3r 🇨🇿 486 290 9ms 11 Nov 2024 50th neihousaigaai 485 291 9ms 15 Mar 2021 51st ForkKILLET 🇨🇳 476 296 9ms 21 Feb 2021 52nd CaedenHarper 🇨🇦 464 304 9ms 6 Nov 2025 53rd Kees-van-Beilen 462 305 10ms 14 May 2023 53rd LukeBridges 🇬🇧 462 305 10ms 20 Aug 2024 55th tomh1012 461 306 9ms 14 Sep 2020 55th GeorgeStechman 🇬🇧 461 306 9ms 20 Nov 2022 57th junkondo-jp 456 309 10ms 11 Jun 2024 58th strattonwhisler 455 310 10ms 22 Apr 2022 59th dokutan 450 313 9ms 28 Mar 2025 60th lukasmoellerch 443 318 9ms 15 Jul 2019 60th omurakazuaki 🇯🇵 443 318 9ms 13 Feb 2021 62nd johnkiernander 439 321 10ms 6 days ago 63rd smclaughlin-cf 435 324 9ms 15 Apr 2025 64th 1231234md5 🇨🇳 433 326 9ms 29 Jan 2024 65th mintypython 431 327 9ms 19 Oct 2018 66th Florian-Mt 430 328 9ms 13 Nov 2023 67th gnlow 🇰🇷 425 332 9ms 25 Apr 2020 68th eranws 417 338 9ms 24 Oct 2022 69th pg98 413 341 9ms 5 Sep 2019 70th fitzdotlol 🇺🇸 410 344 9ms 28 Mar 2022 71st shreyasminocha 409 345 10ms 2 Aug 2020 72nd ozkxr 398 354 9ms 27 Apr 2020 73rd acollett89 388 363 10ms 5 Aug 2025 74th dijs 387 364 10ms 20 Dec 2019 74th madeforlosers 387 364 10ms 30 Nov 2023 76th SpareManiKatti 384 367 9ms 14 Oct 2021 77th unfinishedprogram 373 378 10ms 28 Nov 2023 78th ian-odonnell 369 382 9ms 14 Mar 2018 79th dsntzn 🇸🇰 368 383 9ms 2 Mar 2021 80th jackkav 365 386 10ms 14 Apr 2018 1–80 of 106 Next Last
