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 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 401st hoodadam 623 220 10ms 12 Jun 2019 402nd janbehrens 🇩🇪 622 174 2ms 23 Sep 2021 403rd Natanaelel 🇸🇪 621 185 34ms 18 Nov 2023 404th KatieLG 🇬🇧 621 195 1,133ms 25 Apr 2021 405th BREMAUCY 🇫🇷 618 215 351ms 20 Jan 2023 406th jupj 🇫🇮 613 209 2ms 31 Aug 2022 407th frobinsonj 612 223 10ms 28 Mar 2018 408th ArmaanAS 611 224 10ms 26 Mar 2021 409th alexsave 609 224 10ms 8 days ago 410th lacroixjonathan87 608 219 4ms 15 Sep 2020 411th MeWhenI 🇻🇦 608 262 1,373ms 25 Jun 2023 412th kaascevich 607 298 121ms 22 Jul 2025 413th adamnielson42 🇺🇸 606 226 10ms 21 Aug 2023 414th adamnielson42 🇺🇸 603 184 2ms 5 Dec 2023 415th andrewjc2000 603 227 10ms 18 Jul 2025 416th Lv0Sys 🇵🇱 602 199 303ms 21 days ago 417th scpchicken 🇵🇼 601 221 357ms 6 Apr 2022 418th MeWhenI 🇻🇦 599 309 46ms 30 Dec 2023 419th MarcMush 🇫🇷 596 201 1,131ms 11 Jan 2024 420th elisherer 🇮🇱 596 229 10ms 13 Apr 2019 421st Eilonlif 🇮🇱 596 230 9ms 4 Nov 2022 421st frankgraziano 596 230 16ms 5 Apr 2025 423rd dokutan 596 241 512ms 30 Mar 2025 424th ArmaanAS 593 230 10ms 25 Mar 2021 425th amollberg 🇸🇪 593 231 17ms 16 Jan 2022 426th JDiLenarda 🇫🇷 592 269 1,468ms 29 Nov 2023 427th IISResetMe 591 193 282ms 19 days ago 428th dokutan 591 217 1ms 30 Mar 2025 429th zuparnowa 585 234 10ms 8 Feb 2019 429th mathisfun271 585 234 9ms 18 Dec 2023 429th yuchuehw 585 234 9ms 4 Jan 2024 429th Flekay 🇩🇪 585 234 12ms 11 Jul 2025 433rd Alex-x90 🇺🇸 584 246 74ms 30 Dec 2022 434th Alex-x90 🇺🇸 583 220 2ms 30 Dec 2022 435th argusdusty 🇺🇸 583 235 16ms 11 Jan 2021 435th moustave 583 235 10ms 28 Mar 2025 437th alexkunin 580 235 10ms 4 Jul 2019 438th Mabeloid 🇳🇴 580 236 9ms 21 Sep 2024 439th jaredcrystal 🇺🇸 579 192 50ms 14 Dec 2020 440th coreynash 576 237 9ms 28 May 2024 441st abailey2020 🇺🇸 570 328 121ms 20 Aug 2020 442nd rvdnieuwendijk 🇳🇱 567 201 272ms 26 Jun 2020 443rd megaturbo 564 300 295ms 25 Jun 2020 444th boxjelly 563 332 141ms 23 Feb 2021 445th Phanabani 🇺🇸 561 244 10ms 22 Oct 2020 446th annaproxy 560 237 360ms 3 May 2022 447th James-Oswald 🇺🇸 559 257 472ms 10 Sep 2024 448th skps2010 557 246 16ms 29 Dec 2018 449th xkacer 🇨🇿 557 283 633ms 25 Jan 2021 450th kevinmchung 555 247 17ms 24 Feb 2018 450th b10011 🇫🇮 555 247 9ms 30 Dec 2022 450th froggy2001 555 247 16ms 16 Feb 2023 453rd yokasuretsu 554 208 213ms 4 May 2018 454th janbehrens 🇩🇪 554 261 3ms 9 Jun 2021 455th Andrey-Plotnikov 552 247 9ms 9 Nov 2024 456th bastienvoirin 🇫🇷 552 248 10ms 30 Nov 2020 457th StefanHabel 🇨🇦 550 249 16ms 17 Sep 2023 458th mhsaul 548 250 11ms 10 Apr 2023 458th ceeb9 548 250 12ms 14 Jun 2024 460th BisheruBlade888 546 263 74ms 14 Jan 2022 461st olleicua 🇺🇸 543 205 52ms 1 Apr 2024 462nd MeWhenI 🇻🇦 542 265 492ms 7 May 2023 463rd gastropner 541 237 2ms 25 Dec 2020 464th emgordon154 540 245 4,457ms 17 May 2025 465th Lwi-Sandwich 539 254 10ms 20 Jul 2023 466th Waffle3z 538 283 2ms 1 Feb 2021 467th bwat2 534 295 505ms 10 Feb 2022 468th MeWhenI 🇻🇦 534 522 9ms 28 Nov 2023 469th blaztoma 🇱🇹 533 203 3ms 23 Oct 2025 470th Babafaba 533 257 17ms 11 Nov 2025 471st emgordon154 533 288 4ms 28 Dec 2024 472nd violeta-desantis 528 243 2ms 17 Apr 2024 473rd arctouch-cristiannevianna 527 252 386ms 29 Feb 2024 474th two-bad 🇬🇧 527 259 10ms 28 Feb 2024 475th c0d3-4-F00d 🇩🇪 525 244 2ms 5 Jun 2023 476th Mabeloid 🇳🇴 522 236 816ms 21 Sep 2024 477th skps2010 521 262 9ms 29 Dec 2018 477th helbling 🇨🇭 521 262 10ms 15 Jun 2024 479th thisishowmymindworks 🇳🇴 521 263 10ms 12 Oct 2020 480th MeWhenI 🇻🇦 521 602 11ms 10 Feb 2025 First Prev 401–480 of 984 Next Last
