The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Morse Decoder 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 641st JRaspass 🇬🇧 231 262 3ms 5 Sep 2021 642nd madex 🇩🇪 230 386 9ms 12 May 2024 643rd sergeyz7 🇬🇧 230 394 268ms 15 Nov 2020 644th meenie 228 298 48ms 21 Jan 2023 645th lowlighter 228 426 9ms 1 Nov 2020 646th dokutan 228 451 3ms 9 Dec 2024 647th dokutan 226 834 360ms 4 Feb 2025 648th varhammer 🇷🇺 225 583 8ms 5 Mar 2022 649th msbranicky 223 384 761ms 17 Jan 2024 650th GWStuart 223 399 9ms 27 Jan 2023 651st lahell 223 405 329ms 2 Jul 2020 652nd MeWhenI 🇻🇦 223 461 3ms 12 May 2022 653rd KatieLG 🇬🇧 223 689 152ms 31 May 2021 654th nephila-nacrea 🇬🇧 222 273 3ms 21 Mar 2018 655th n1LS 222 306 37ms 2 Oct 2019 656th KevinMarquette 🇺🇸 222 408 247ms 7 Jun 2020 657th codewrite 🇬🇧 221 403 10ms 12 Jul 2025 658th mazzegi 221 850 296ms 16 Apr 2020 659th biinari 220 309 36ms 25 Mar 2018 660th labster 219 277 3ms 25 Feb 2018 661st nlc 219 311 44ms 12 Apr 2018 662nd geezyx 219 859 267ms 16 Apr 2020 663rd ThatAlo 218 408 10ms 12 Jun 2023 664th KatieLG 🇬🇧 218 708 631ms 29 May 2021 665th KatieLG 🇬🇧 218 862 295ms 29 May 2021 666th stordev 217 410 11ms 26 Feb 2021 666th michelebastione 🇮🇹 217 410 12ms 21 Mar 2022 668th brochmann 🇸🇪 215 414 9ms 9 Feb 2022 669th vaughad 214 722 103ms 21 Jan 2020 670th Florian-Mt 213 417 10ms 28 Nov 2023 671st Stockoh 🇫🇷 213 418 9ms 17 Oct 2024 672nd dokutan 213 781 51ms 1 Jul 2025 673rd MaxElf999 212 419 10ms 24 May 2022 674th Waffle3z 211 323 43ms 22 Jan 2021 675th joonaspu 211 422 9ms 14 Jun 2023 676th markbyrne 209 425 10ms 26 Oct 2020 676th haydenridd 209 425 10ms 26 Oct 2020 678th alphafalfa 209 647 2ms 24 Oct 2024 679th LSWdigital 208 756 14ms 17 Nov 2021 680th KatieLG 🇬🇧 207 860 294ms 20 May 2021 681st ethandhunt 204 437 10ms 21 Jul 2021 682nd martinnorling 🇸🇪 203 438 10ms 20 Jun 2022 683rd Ashikpaul 🇮🇳 203 478 9ms 30 Jul 2022 684th MeWhenI 🇻🇦 202 790 47ms 7 Sep 2024 685th dokutan 201 556 13ms 4 Feb 2025 686th CutSandstone 200 444 9ms 5 Jul 2024 687th jjstreet 198 649 579ms 30 Apr 2020 688th MeWhenI 🇻🇦 198 1,250 2ms 27 Jul 2021 689th evanrittner 197 452 10ms 26 Feb 2021 690th two-bad 🇬🇧 197 492 10ms 25 Feb 2024 691st cafehaine 🇫🇷 197 621 1ms 30 Jul 2018 692nd bsoyka 🇺🇸 196 453 10ms 9 Jan 2022 693rd adoxography 195 348 37ms 1 Jun 2018 693rd madex 🇩🇪 195 348 35ms 13 May 2024 695th ques0942 195 457 11ms 2 Oct 2019 696th dokutan 195 913 296ms 10 Dec 2024 697th guliyevemil1 🇦🇿 194 458 9ms 16 Apr 2020 698th MeWhenI 🇻🇦 194 919 302ms 28 Mar 2022 699th dokutan 193 611 74ms 12 Mar 2025 700th grabthefish 193 707 355ms 21 Nov 2021 701st boxjelly 190 358 35ms 12 Feb 2021 702nd KatieLG-Transpiler 🇬🇧 190 990 304ms 25 Sep 2022 703rd BBoehm 🇩🇪 189 513 10ms 4 Feb 2021 704th june410 🇨🇦 188 472 16ms 5 Jun 2024 705th msbranicky 185 553 4,678ms 10 Jan 2025 706th Jacob385 185 696 435ms 21 Nov 2024 707th MeWhenI 🇻🇦 184 1,018 69ms 8 Jul 2021 708th dokutan 183 909 374ms 10 Dec 2024 709th joshvd 182 490 10ms 31 Aug 2019 710th KatieLG 🇬🇧 179 492 3ms 30 Jun 2021 711th MeWhenI 🇻🇦 179 990 150ms 7 Jul 2021 712th zuparnowa 178 500 18ms 12 Feb 2019 712th henrytranter 178 500 16ms 20 Sep 2019 714th Trunksistor 🇫🇷 178 501 10ms 6 May 2022 715th omgardner 177 503 10ms 4 Feb 2019 716th krcs 🇵🇱 177 510 256ms 28 Jun 2023 717th Andrey2001 175 507 10ms 4 days ago 718th scottJsonar 174 512 10ms 29 Nov 2019 719th shamrice 🇺🇸 174 2,180 12ms 31 Jan 2021 720th Mortistar 173 786 366ms 20 Jul 2023 First Prev 641–720 of 870 Next Last
