The Calendar hole will go live in approximately 13 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 d4rkne55 263 430 5ms 1 Mar 2018 722nd betaveros 261 357 9ms 1 Jan 2023 723rd richard-oelze 🇩🇪 260 358 10ms 20 Mar 2021 724th perlebach 🇨🇿 259 265 3ms 17 Aug 2021 725th CheeseCake628 🇳🇴 259 333 539ms 18 Oct 2025 726th DmytroLynda 259 411 427ms 21 Nov 2024 727th CaedenHarper 🇨🇦 258 362 10ms 10 Oct 2024 728th sergeyz7 🇬🇧 258 372 272ms 18 Nov 2020 729th eiburns 255 365 10ms 8 May 2023 729th PotatoSaladOverlord 255 365 10ms 16 Jan 2024 731st temoto 254 367 10ms 20 Sep 2018 732nd mogensen 254 634 314ms 17 Apr 2020 733rd brochmann 🇸🇪 252 370 9ms 9 Feb 2022 733rd m42km 252 370 10ms 23 Oct 2023 733rd ridingqwerty 🇺🇸 252 370 10ms 3 Dec 2023 733rd klixel 🇨🇦 252 370 9ms 23 Jan 2025 737th nephila-nacrea 🇬🇧 251 273 2ms 24 Jun 2020 738th 4ndyJ 🇬🇧 251 372 10ms 19 Jun 2025 739th CaedenHarper 🇨🇦 250 345 1,595ms 19 Jan 2025 740th ragerin 250 373 16ms 21 Feb 2018 741st Agazoth 250 384 265ms 12 Jun 2020 742nd mokymok 🇺🇸 249 374 10ms 1 Dec 2021 743rd croc54 248 376 10ms 14 Jan 2025 744th dokutan 248 1,066 2ms 13 Nov 2024 745th lahell 244 393 272ms 8 Jun 2020 746th SiddharthShyniben 243 449 9ms 10 Aug 2021 747th wrhm 242 385 10ms 12 Dec 2020 748th jhpaques 🇫🇷 242 386 10ms 29 Jul 2022 749th michelebastione 🇮🇹 240 388 10ms 21 Mar 2022 750th dokutan 240 919 129ms 16 days ago 751st Openstreetmapler 239 390 10ms 23 Nov 2019 752nd madex 🇩🇪 237 393 9ms 23 Jun 2024 753rd Pena86 236 395 12ms 30 Dec 2021 753rd ThatAlo 236 395 10ms 12 Jun 2023 755th JOrE20 🇺🇸 236 462 10ms 12 days ago 756th shaunjc 236 479 4ms 11 Jun 2021 757th johnennewdeeson 235 464 9ms 6 Apr 2020 758th jotslo 🇬🇧 234 399 9ms 5 Jul 2021 759th dokutan 234 1,481 2ms 12 May 2023 760th Mikey-Beep 🇬🇧 231 404 10ms 25 Aug 2023 761st Cr3aHal0 231 472 10ms 28 Jun 2019 762nd dokutan 231 488 155ms 21 Aug 2024 763rd rbicelli 231 490 5ms 4 Apr 2018 764th CaedenHarper 🇨🇦 231 697 276ms 28 Oct 2025 765th madex 🇩🇪 230 350 56ms 23 Jun 2024 766th bsoyka 🇺🇸 230 406 10ms 9 Jan 2022 767th RealAMC 🇳🇿 229 527 2ms 22 Nov 2023 768th CarterStroik 229 644 1ms 12 Nov 2025 769th wes-sleeman 229 657 1,320ms 29 Sep 2021 770th Ashikpaul 🇮🇳 228 479 9ms 30 Jul 2022 771st eddvrs 227 410 10ms 20 Aug 2022 772nd lrustand 226 412 10ms 19 Feb 2018 773rd KatieLG 🇬🇧 226 673 3ms 24 Sep 2022 774th dokutan 225 672 6ms 10 Sep 2025 775th cafehaine 🇫🇷 224 660 1ms 27 Jul 2018 776th brandon-04 222 479 395ms 11 Nov 2025 777th d4rkne55 222 492 10ms 28 Feb 2018 778th Maximizer02 222 559 6ms 30 Jul 2024 779th markbyrne 221 421 10ms 25 Oct 2020 780th Michiocre 221 493 9ms 18 Jun 2024 781st Jacob385 220 628 420ms 23 Apr 2024 782nd dokutan 218 664 44ms 13 Sep 2025 783rd RandGuy 217 490 356ms 14 Dec 2021 784th dokutan 217 860 61ms 3 Jul 2025 785th dokutan 216 523 6ms 20 Apr 2025 786th jjstreet 216 641 617ms 30 Apr 2020 787th HassanAliKadhem 🇧🇭 215 433 17ms 4 Jan 2022 788th Vaekor 213 437 10ms 16 Nov 2020 789th hklemp 🇩🇪 213 501 357ms 21 Nov 2021 790th dokutan 213 705 2ms 2 Jul 2025 791st calinous 🇷🇴 212 567 2ms 22 Mar 2022 792nd Trunksistor 🇫🇷 211 441 10ms 19 Apr 2022 793rd boxjelly 210 383 46ms 12 Feb 2021 794th NanduBC 210 445 10ms 23 Mar 2021 795th CutSandstone 209 446 16ms 5 Jul 2024 796th dokutan 209 681 13ms 4 Feb 2025 797th dokutan 208 345 3ms 12 Feb 2025 798th b4dpxl 206 452 9ms 4 Dec 2019 799th Starwort 🇬🇧 204 457 10ms 4 Mar 2019 799th RJFuller 204 457 11ms 23 Feb 2024 First Prev 721–800 of 977 Next Last
