The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
ROT13 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 132nd andrewjc2000 917 71 10ms 28 Feb 2025 132nd Pyroan 917 71 10ms 7 Mar 2025 132nd Troon 917 71 10ms 14 Mar 2025 132nd souta-1326 917 71 10ms 25 Mar 2025 132nd klixel 🇨🇦 917 71 10ms 30 Mar 2025 132nd Keegan-T 🇨🇦 917 71 10ms 17 Apr 2025 132nd TheZwierzLF 🇵🇱 917 71 10ms 17 May 2025 132nd connor-grady 917 71 10ms 18 May 2025 132nd Lv0Sys 🇵🇱 917 71 10ms 15 Jun 2025 132nd bknower 917 71 10ms 30 Jun 2025 132nd Flekay 🇩🇪 917 71 10ms 10 Jul 2025 132nd albanian-laundromat 917 71 10ms 17 Jul 2025 132nd RYSF13 🇨🇳 917 71 10ms 18 Jul 2025 132nd Upload-and-View 🇺🇦 917 71 10ms 24 Jul 2025 132nd LuisGoncalves05 🇵🇹 917 71 10ms 27 Jul 2025 132nd CamegaZFC 917 71 10ms 30 Jul 2025 132nd shelerr 917 71 10ms 22 Aug 2025 132nd InigoK 🇺🇸 917 71 10ms 28 Aug 2025 132nd janlelis 917 71 10ms 22 Sep 2025 132nd snoozingnewt 🇨🇦 917 71 29ms 15 Oct 2025 132nd rustykitty 🇺🇸 917 71 10ms 28 Oct 2025 132nd Cube14yt 917 71 10ms 13 Nov 2025 132nd guilhem-roy 🇫🇷 917 71 10ms 22 Nov 2025 132nd CommandLeo 🇮🇹 917 71 10ms 27 Nov 2025 132nd JOrE20 🇺🇸 917 71 10ms 18 days ago 132nd jkelly467 917 71 10ms 16 days ago 132nd Languag3 917 71 10ms 14 days ago 188th ovs-code 🇩🇪 913 39 114ms 4 Jan 2025 188th lynn 913 39 120ms 6 Jan 2025 188th sisyphus-ppcg 🇦🇺 913 39 98ms 6 Jan 2025 188th pardouin 🇫🇷 913 39 114ms 7 Jan 2025 188th tatzyr 🇯🇵 913 39 113ms 1 Mar 2025 193rd KasperKivimaeki 🇫🇮 913 73 5ms 3 Jan 2025 193rd JayXon 🇺🇸 913 73 4ms 3 May 2025 195th DialFrost 🇸🇬 906 41 5ms 31 Dec 2024 195th TomvdPeet 906 41 5ms 3 Jan 2025 195th emplv 🇱🇻 906 41 5ms 3 Jan 2025 195th error256 906 41 5ms 5 Jan 2025 195th rucin93 🇵🇱 906 41 5ms 5 Jan 2025 195th alaaeelsayed 906 41 6ms 14 Jan 2025 195th KasperKivimaeki 🇫🇮 906 41 7ms 16 days ago 202nd adamnielson42 🇺🇸 904 72 10ms 26 Jan 2025 202nd paulofreitas 904 72 10ms 10 May 2025 202nd LostSyntax21 🇬🇧 904 72 10ms 11 Jul 2025 202nd Aquateraneal 904 72 9ms 11 Aug 2025 202nd jacekwladzinski 904 72 11ms 2 Oct 2025 202nd solisolu 904 72 10ms 2 Nov 2025 208th JayXon 🇺🇸 900 93 414ms 28 Jul 2025 209th GrayJoKing 🇦🇺 899 38 30ms 22 Mar 2025 210th JayXon 🇺🇸 899 56 1,033ms 28 Jul 2025 211th JayXon 🇺🇸 899 79 394ms 28 Jul 2025 212th error256 899 97 10ms 9 Jan 2025 212th nwellnhof 🇩🇪 899 97 10ms 27 Jul 2025 214th AdrienHache 🇫🇷 898 40 54ms 23 days ago 215th edsrzf 🇳🇿 896 47 692ms 29 Aug 2025 215th GolfingSuccess 🇬🇷 896 47 646ms 29 Aug 2025 215th CaedenHarper 🇨🇦 896 47 672ms 7 Sep 2025 215th sean-niemann 🇺🇸 896 47 737ms 20 Sep 2025 215th albanian-laundromat 896 47 713ms 29 Sep 2025 215th xsot 🇸🇬 896 47 688ms 15 Nov 2025 221st GolfingSuccess 🇬🇷 895 19 14ms 25 Jan 2025 222nd nwellnhof 🇩🇪 895 55 218ms 6 Aug 2025 223rd ovs-code 🇩🇪 894 40 33ms 4 Jan 2025 223rd Frowny 894 40 33ms 26 Jan 2025 223rd 2bular 894 40 32ms 15 Oct 2025 226th JayXon 🇺🇸 893 94 443ms 1 Oct 2025 227th helbling 🇨🇭 892 73 9ms 4 Jan 2025 228th JayXon 🇺🇸 892 114 160ms 3 May 2025 228th acotis 892 114 164ms 21 Sep 2025 228th kumavale 892 114 163ms 24 Nov 2025 231st JayXon 🇺🇸 891 61 3,265ms 9 Jan 2025 232nd nwellnhof 🇩🇪 891 94 404ms 28 Jul 2025 233rd canissimia 🇦🇶 890 84 166ms 5 Jan 2025 233rd ovs-code 🇩🇪 890 84 167ms 5 Jan 2025 233rd DialFrost 🇸🇬 890 84 175ms 5 Jan 2025 236th emplv 🇱🇻 890 98 10ms 6 Jan 2025 236th rucin93 🇵🇱 890 98 10ms 6 Jan 2025 236th sean-niemann 🇺🇸 890 98 11ms 5 Feb 2025 239th pardouin 🇫🇷 888 62 342ms 5 Jan 2025 239th GolfingSuccess 🇬🇷 888 62 349ms 24 Jan 2025 First Prev 161–240 of 974 Next Last