The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Morse Encoder in C# 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 1st JayXon 🇺🇸 1,000 112 428ms 7 Aug 2025 2nd Yax42 🇫🇷 949 118 418ms 6 Aug 2025 3rd Steffan153 🇫🇮 800 140 347ms 24 Feb 2023 3rd sean-niemann 🇺🇸 800 140 347ms 2 Nov 2023 5th namelessiw 778 144 401ms 29 Jul 2024 6th AdrienHache 🇫🇷 747 150 360ms 8 Jan 2024 7th tomtheisen 🇺🇸 742 151 363ms 20 Dec 2022 8th MeWhenI 🇻🇦 679 165 364ms 8 Dec 2022 9th billings7 🇬🇧 615 182 369ms 21 Nov 2021 9th primo-ppcg 🇹🇭 615 182 358ms 21 Nov 2021 11th stefangimmillaro 596 188 370ms 11 Oct 2023 12th roavin 577 194 355ms 23 Jun 2022 12th janbehrens 🇩🇪 577 194 355ms 10 Jul 2023 14th tdkkdt 🇷🇺 557 201 381ms 21 Nov 2021 15th BREMAUCY 🇫🇷 541 207 351ms 20 Jan 2023 16th scpchicken 🇵🇼 526 213 357ms 6 Apr 2022 17th annaproxy 489 229 360ms 3 May 2022 18th arctouch-cristiannevianna 459 244 386ms 29 Feb 2024 19th hamhub7 434 258 355ms 18 Aug 2022 20th postie77 426 263 373ms 10 May 2023 21st revlayle 🇺🇸 419 267 377ms 23 Jun 2023 22nd iznax 410 273 364ms 21 Nov 2021 23rd amazingalek 386 290 388ms 5 hours ago 24th mwarvik 🇳🇴 382 293 403ms 3 hours ago 25th ericlangedijk 🇸🇮 366 306 367ms 18 Mar 2022 26th jahakari 354 316 356ms 21 Nov 2021 27th bac0id 335 334 422ms 4 Jul 2024 28th kjhughes097 🇬🇧 333 336 370ms 9 Dec 2020 29th arcpolaris 331 338 421ms 11 Nov 2025 30th tomh1012 330 339 400ms 21 Sep 2022 31st ChrisTheisen 309 362 351ms 19 Dec 2022 32nd KatieLG 🇬🇧 293 382 378ms 21 Nov 2021 33rd p-vf 🇨🇭 282 397 373ms 29 Sep 2021 34th DmytroLynda 273 411 427ms 21 Nov 2024 35th brandon-04 234 479 372ms 11 Nov 2025 36th RandGuy 229 490 356ms 14 Dec 2021 37th hklemp 🇩🇪 224 501 357ms 21 Nov 2021 38th MiffOttah 208 539 370ms 21 Nov 2021 39th CaedenHarper 🇨🇦 138 814 393ms 21 Oct 2025 40th tbschff 133 840 365ms 16 Apr 2022 41st afgarciam 129 865 361ms 21 Nov 2021 42nd KatieLG-Transpiler 🇬🇧 104 1,074 362ms 4 Jul 2022 43rd dokutan 103 1,090 409ms 9 Dec 2024 44th DarioColucci 39 2,844 381ms 21 Nov 2021 1–44 of 44
