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 721st aksyristos 264 353 9ms 14 Mar 2023 722nd TheZwierzLF 🇵🇱 263 328 608ms 14 days ago 723rd d4rkne55 263 430 5ms 1 Mar 2018 724th betaveros 261 357 9ms 1 Jan 2023 725th richard-oelze 🇩🇪 260 358 10ms 20 Mar 2021 726th perlebach 🇨🇿 259 265 3ms 17 Aug 2021 727th CheeseCake628 🇳🇴 259 333 539ms 18 Oct 2025 728th DmytroLynda 259 411 427ms 21 Nov 2024 729th CaedenHarper 🇨🇦 258 362 10ms 10 Oct 2024 730th sergeyz7 🇬🇧 258 372 272ms 18 Nov 2020 731st eiburns 255 365 10ms 8 May 2023 731st PotatoSaladOverlord 255 365 10ms 16 Jan 2024 733rd temoto 254 367 10ms 20 Sep 2018 734th mogensen 254 634 314ms 17 Apr 2020 735th brochmann 🇸🇪 252 370 9ms 9 Feb 2022 735th m42km 252 370 10ms 23 Oct 2023 735th ridingqwerty 🇺🇸 252 370 10ms 3 Dec 2023 735th klixel 🇨🇦 252 370 9ms 23 Jan 2025 739th nephila-nacrea 🇬🇧 251 273 2ms 24 Jun 2020 740th 4ndyJ 🇬🇧 251 372 10ms 19 Jun 2025 741st CaedenHarper 🇨🇦 250 345 1,595ms 19 Jan 2025 742nd ragerin 250 373 16ms 21 Feb 2018 743rd Agazoth 250 384 265ms 12 Jun 2020 744th mokymok 🇺🇸 249 374 10ms 1 Dec 2021 745th croc54 248 376 10ms 14 Jan 2025 746th dokutan 248 1,066 2ms 13 Nov 2024 747th lahell 244 393 272ms 8 Jun 2020 748th SiddharthShyniben 243 449 9ms 10 Aug 2021 749th wrhm 242 385 10ms 12 Dec 2020 750th jhpaques 🇫🇷 242 386 10ms 29 Jul 2022 751st michelebastione 🇮🇹 240 388 10ms 21 Mar 2022 752nd Openstreetmapler 239 390 10ms 23 Nov 2019 753rd madex 🇩🇪 237 393 9ms 23 Jun 2024 754th Pena86 236 395 12ms 30 Dec 2021 754th ThatAlo 236 395 10ms 12 Jun 2023 756th JOrE20 🇺🇸 236 462 10ms 16 days ago 757th shaunjc 236 479 4ms 11 Jun 2021 758th johnennewdeeson 235 464 9ms 6 Apr 2020 759th jotslo 🇬🇧 234 399 9ms 5 Jul 2021 760th dokutan 234 1,481 2ms 12 May 2023 761st Mikey-Beep 🇬🇧 231 404 10ms 25 Aug 2023 762nd Cr3aHal0 231 472 10ms 28 Jun 2019 763rd dokutan 231 488 155ms 21 Aug 2024 764th rbicelli 231 490 5ms 4 Apr 2018 765th CaedenHarper 🇨🇦 231 697 276ms 28 Oct 2025 766th madex 🇩🇪 230 350 56ms 23 Jun 2024 767th bsoyka 🇺🇸 230 406 10ms 9 Jan 2022 768th RealAMC 🇳🇿 229 527 2ms 22 Nov 2023 769th CarterStroik 229 644 1ms 12 Nov 2025 770th wes-sleeman 229 657 1,320ms 29 Sep 2021 771st Ashikpaul 🇮🇳 228 479 9ms 30 Jul 2022 772nd eddvrs 227 410 10ms 20 Aug 2022 773rd lrustand 226 412 10ms 19 Feb 2018 774th KatieLG 🇬🇧 226 673 3ms 24 Sep 2022 775th dokutan 225 672 6ms 10 Sep 2025 776th cafehaine 🇫🇷 224 660 1ms 27 Jul 2018 777th brandon-04 222 479 395ms 11 Nov 2025 778th d4rkne55 222 492 10ms 28 Feb 2018 779th Maximizer02 222 559 6ms 30 Jul 2024 780th markbyrne 221 421 10ms 25 Oct 2020 781st Michiocre 221 493 9ms 18 Jun 2024 782nd Jacob385 220 628 420ms 23 Apr 2024 783rd dokutan 218 664 44ms 13 Sep 2025 784th RandGuy 217 490 356ms 14 Dec 2021 785th dokutan 217 860 61ms 3 Jul 2025 786th dokutan 216 523 6ms 20 Apr 2025 787th jjstreet 216 641 617ms 30 Apr 2020 788th HassanAliKadhem 🇧🇭 215 433 17ms 4 Jan 2022 789th Vaekor 213 437 10ms 16 Nov 2020 790th hklemp 🇩🇪 213 501 357ms 21 Nov 2021 791st dokutan 213 705 2ms 2 Jul 2025 792nd calinous 🇷🇴 212 567 2ms 22 Mar 2022 793rd Trunksistor 🇫🇷 211 441 10ms 19 Apr 2022 794th boxjelly 210 383 46ms 12 Feb 2021 795th NanduBC 210 445 10ms 23 Mar 2021 796th CutSandstone 209 446 16ms 5 Jul 2024 797th dokutan 209 681 13ms 4 Feb 2025 798th dokutan 208 345 3ms 12 Feb 2025 799th b4dpxl 206 452 9ms 4 Dec 2019 800th Starwort 🇬🇧 204 457 10ms 4 Mar 2019 First Prev 721–800 of 979 Next Last
