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 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 640th CutSandstone 290 446 9ms 5 Jul 2024 642nd olligobber 🇦🇺 289 631 162ms 22 May 2020 643rd dokutan 289 873 2ms 9 Dec 2024 644th evanrittner 284 456 10ms 26 Feb 2021 645th ques0942 282 459 11ms 2 Oct 2019 646th Dazza314 🇬🇧 281 460 10ms 4 Nov 2020 647th bsoyka 🇺🇸 281 461 10ms 9 Jan 2022 648th lowlighter 280 434 9ms 1 Nov 2020 649th guliyevemil1 🇦🇿 278 466 9ms 16 Apr 2020 650th lahell 277 413 283ms 2 Jul 2020 651st robin-scragg 277 467 10ms 28 Sep 2025 652nd schachmattmatt 276 469 10ms 20 Aug 2021 653rd KevinMarquette 🇺🇸 275 416 223ms 7 Jun 2020 654th frederikb 275 510 605ms 9 Sep 2020 655th 007lock 275 700 270ms 11 May 2020 656th june410 🇨🇦 274 472 16ms 5 Jun 2024 657th boxjelly 272 374 39ms 12 Feb 2021 658th retrohun 272 403 2ms 26 Aug 2025 659th JunkIce 270 480 16ms 12 Nov 2024 660th MeWhenI 🇻🇦 269 792 47ms 7 Sep 2024 661st D1CED 267 620 20ms 17 Nov 2021 662nd dokutan 265 727 62ms 3 Jul 2025 663rd JOrE20 🇺🇸 264 461 9ms 19 days ago 664th JunkIce 260 471 2,095ms 3 Dec 2024 665th joshvd 260 498 10ms 31 Aug 2019 666th ian-h-chamberlain 🇺🇸 260 705 227ms 12 Oct 2020 667th chunky 259 976 2ms 1 Oct 2020 668th omgardner 257 503 10ms 4 Feb 2019 669th Trunksistor 🇫🇷 256 505 9ms 6 May 2022 670th MeWhenI 🇻🇦 256 585 4ms 16 Apr 2023 671st zuparnowa 255 508 18ms 12 Feb 2019 671st henrytranter 255 508 16ms 20 Sep 2019 673rd dokutan 255 648 2ms 10 Dec 2024 674th Andrey2001 254 509 10ms 11 days ago 675th luuumine 🇫🇷 252 514 10ms 29 Oct 2025 676th nlc 250 407 48ms 12 Apr 2018 677th MeWhenI 🇻🇦 249 839 4ms 27 Jul 2023 678th MeWhenI 🇻🇦 247 443 3ms 11 hours ago 679th kurkale6ka 247 456 3ms 27 Dec 2023 680th scottJsonar 247 524 10ms 29 Nov 2019 681st gabrielsqw 246 526 9ms 24 Oct 2023 682nd two-bad 🇬🇧 243 500 10ms 25 Feb 2024 683rd dokutan 242 453 3ms 9 Dec 2024 684th myleopard 242 534 10ms 22 Dec 2022 685th dokutan 242 583 2ms 24 Dec 2024 686th adesanjo 241 537 9ms 30 Oct 2018 686th Mikey-Beep 🇬🇧 241 537 9ms 25 Aug 2023 688th dokutan 241 631 89ms 10 Dec 2024 689th Yewzir 🇧🇪 239 541 10ms 11 Apr 2023 690th schachmattmatt 238 427 40ms 20 Aug 2021 691st varhammer 🇷🇺 238 583 8ms 5 Mar 2022 692nd twocatsinatrenchcoat 237 546 14ms 12 May 2022 693rd Vaekor 236 548 10ms 18 Nov 2020 694th The-Wolfson 236 675 668ms 1 Nov 2024 695th olivi-r 235 550 9ms 9 Aug 2019 696th BBoehm 🇩🇪 233 521 10ms 4 Feb 2021 697th kewegmey 232 558 11ms 17 Apr 2024 698th dokutan 230 836 360ms 4 Feb 2025 699th mothcolada 🇺🇸 228 567 9ms 2 Mar 2021 700th Yewzir 🇧🇪 227 541 1,564ms 15 Jan 2024 701st jmerle 🇳🇱 225 576 10ms 11 Jul 2023 702nd KatieLG 🇬🇧 225 710 631ms 29 May 2021 703rd krcs 🇵🇱 224 510 249ms 28 Jun 2023 704th mazzegi 224 858 296ms 16 Apr 2020 705th puzzleninja 223 580 10ms 18 Jul 2019 706th dokutan 221 783 51ms 1 Jul 2025 707th vaughad 220 724 103ms 21 Jan 2020 708th geezyx 220 873 267ms 16 Apr 2020 709th dokutan 219 558 13ms 4 Feb 2025 710th LSWdigital 217 760 14ms 17 Nov 2021 711th Zhenyu-Bo 215 603 10ms 31 Jul 2025 712th elisherer 🇮🇱 211 576 10ms 18 Apr 2019 713th pandapawskat 211 577 9ms 30 Aug 2021 714th jackkav 209 583 9ms 21 Dec 2019 715th Natz12 207 625 10ms 2 Feb 2023 716th grabthefish 205 727 355ms 21 Nov 2021 717th msbranicky 202 561 4,678ms 10 Jan 2025 718th dokutan 202 613 74ms 12 Mar 2025 719th mokymok 🇺🇸 201 645 12ms 23 Nov 2021 720th harperse 200 572 263ms 11 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