The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Morse Decoder 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 561st MaxCastella 🇫🇷 292 310 244ms 15 Mar 2024 562nd yokasuretsu 291 223 164ms 28 Jun 2018 563rd msbranicky 291 565 3ms 13 Aug 2023 564th MeWhenI 🇻🇦 289 1,316 38ms 28 Aug 2023 565th eiburns 288 309 10ms 25 Aug 2023 566th Yewzir 🇧🇪 288 434 10ms 26 Dec 2024 567th tomh1012 286 340 9ms 20 Oct 2020 568th jmerle 🇳🇱 284 313 10ms 11 Jul 2023 569th dokutan 284 871 2ms 9 Dec 2024 570th mizuzimu 282 315 9ms 16 Mar 2021 571st LordSir101 282 344 9ms 16 Aug 2025 572nd olligobber 🇦🇺 282 631 162ms 22 May 2020 573rd omurakazuaki 🇯🇵 281 345 10ms 17 Feb 2021 574th McErer 281 346 9ms 14 Jan 2019 575th mathisfun271 280 318 10ms 19 Feb 2024 576th patbassing 279 319 10ms 8 Jul 2019 576th dymowski 279 319 9ms 3 Jan 2020 578th robymus 276 246 51ms 18 Sep 2018 579th KatieLG 🇬🇧 276 332 1,054ms 25 Apr 2021 580th KatieLG 🇬🇧 275 353 9ms 4 Feb 2022 581st NicoAdams 273 326 9ms 30 Dec 2021 582nd arcage 🇯🇵 273 336 1,134ms 10 Aug 2021 583rd lukasmoellerch 273 355 10ms 15 Jul 2019 584th SteveL-MSFT 272 333 248ms 10 Jun 2020 585th relet 271 328 15ms 9 Aug 2018 585th TobyBoyne 🇬🇧 271 328 9ms 15 Apr 2022 587th madeforlosers 271 358 11ms 23 Oct 2024 588th zdzc 270 329 10ms 1 Apr 2018 589th LeeCamp 270 330 16ms 25 Dec 2021 589th neihousaigaai 270 330 10ms 14 Feb 2024 591st aaronze 🇦🇺 270 359 9ms 1 Apr 2021 592nd 007lock 270 698 270ms 11 May 2020 593rd choroba 269 225 3ms 3 May 2018 594th graft 269 253 47ms 10 Mar 2018 595th kurkale6ka 269 331 15ms 29 Dec 2023 596th pg98 267 363 9ms 5 Sep 2019 597th dokutan 263 290 3ms 12 Feb 2025 598th tpaxman 🇨🇦 263 338 9ms 17 Dec 2020 599th OllieBoyne 🇬🇧 262 340 10ms 14 Apr 2022 600th dijs 262 370 10ms 20 Dec 2019 600th SpareManiKatti 262 370 9ms 14 Oct 2021 602nd alemelis 260 285 758ms 6 Aug 2024 603rd dokutan 258 725 62ms 3 Jul 2025 604th 77Tigers 257 346 10ms 2 Mar 2021 605th dsntzn 🇸🇰 257 377 10ms 3 Mar 2021 606th D1CED 257 612 20ms 17 Nov 2021 607th retrohun 256 401 2ms 26 Aug 2025 608th jfallon1997 255 349 10ms 24 Aug 2022 609th inverseLorentz 🇦🇺 253 351 10ms 11 Mar 2024 610th ian-h-chamberlain 🇺🇸 253 705 227ms 12 Oct 2020 611th TaserTheFox 🇺🇸 251 354 10ms 4 Apr 2023 612th dzshn 251 355 11ms 25 Nov 2020 613th vgamula 🇺🇦 250 356 12ms 8 Jul 2025 614th acollett89 250 388 9ms 5 Aug 2025 615th Pena86 249 357 10ms 31 Dec 2021 615th aksyristos 249 357 10ms 12 Mar 2023 617th mcreenan 247 263 127ms 16 Jun 2018 618th Psirving 247 360 11ms 2 Aug 2020 618th qwjhvbxi 247 360 9ms 12 Feb 2024 620th MeWhenI 🇻🇦 247 583 4ms 16 Apr 2023 621st CaedenHarper 🇨🇦 247 762 305ms 28 Oct 2025 622nd TheAristos 246 362 10ms 30 Oct 2019 623rd mintypython 245 397 9ms 19 Oct 2018 624th Agazoth 244 370 233ms 12 Jun 2020 625th TheZwierzLF 🇵🇱 243 366 11ms 16 days ago 626th MeWhenI 🇻🇦 241 837 4ms 27 Jul 2023 627th dokutan 240 283 37ms 21 Apr 2025 628th febiw 240 371 9ms 22 Mar 2020 629th zakariamouhid 237 409 10ms 2 Aug 2023 630th ereztaiar 🇮🇱 237 410 11ms 11 Sep 2021 631st SirFireball3521 235 276 118ms 1 Mar 2023 632nd TheEric0802 🇩🇪 235 575 3ms 22 Sep 2023 633rd LorenzoTa 234 259 3ms 27 Apr 2019 634th MeWhenI 🇻🇦 234 439 3ms 2 hours ago 635th 71c 233 381 10ms 29 Apr 2018 636th wrhm 233 382 10ms 15 Dec 2020 637th dokutan 233 446 6ms 20 Apr 2025 638th dokutan 233 581 2ms 24 Dec 2024 639th msbranicky 232 384 12ms 3 Jul 2023 640th JoeBigToe 232 390 236ms 5 Jun 2020 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