The Calendar hole will go live in approximately 13 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 241st nwellnhof 🇩🇪 887 80 411ms 27 Jul 2025 242nd ovs-code 🇩🇪 885 42 4ms 5 Jan 2025 242nd TheLastZombie 885 42 4ms 10 Jan 2025 242nd blaztoma 🇱🇹 885 42 5ms 21 Sep 2025 245th JayXon 🇺🇸 885 95 2ms 9 Jan 2025 245th edsrzf 🇳🇿 885 95 2ms 9 Jan 2025 247th nwellnhof 🇩🇪 885 123 281ms 28 Jul 2025 247th JayXon 🇺🇸 885 123 282ms 28 Jul 2025 249th nwellnhof 🇩🇪 884 95 447ms 25 Sep 2025 250th pardouin 🇫🇷 883 57 1,090ms 28 Jul 2025 251st vlpx 🇫🇮 881 99 10ms 6 Jan 2025 252nd SirBogman 🇺🇸 880 24 2ms 9 Jan 2025 253rd kurkale6ka 880 74 11ms 3 days ago 254th MeWhenI 🇻🇦 879 85 4ms 4 Jan 2025 254th sisyphus-ppcg 🇦🇺 879 85 4ms 5 Jan 2025 254th retrohun 879 85 5ms 5 Jan 2025 254th saito-ta 🇯🇵 879 85 5ms 12 Jan 2025 254th nwellnhof 🇩🇪 879 85 4ms 23 Jul 2025 254th jared-hughes 879 85 184ms 22 Sep 2025 260th DialFrost 🇸🇬 878 48 652ms 31 Aug 2025 260th snoozingnewt 🇨🇦 878 48 637ms 8 days ago 262nd ovs-code 🇩🇪 873 118 134ms 5 Jan 2025 262nd lynn 873 118 136ms 6 Jan 2025 262nd xnor-gate 873 118 128ms 6 Jan 2025 262nd Sakisan 🇧🇪 873 118 129ms 6 Jun 2025 266th JayXon 🇺🇸 872 74 131ms 28 Jul 2025 267th KasperKivimaeki 🇫🇮 872 96 394ms 4 Jan 2025 268th ovs-code 🇩🇪 872 100 9ms 7 Jan 2025 269th stefangimmillaro 871 38 37ms 31 Dec 2024 269th Natanaelel 🇸🇪 871 38 41ms 3 Jan 2025 269th edsrzf 🇳🇿 871 38 37ms 5 Jan 2025 269th Shanethegamer 🇺🇸 871 38 52ms 5 Jan 2025 269th JayXon 🇺🇸 871 38 56ms 6 Jan 2025 269th anter69 🇭🇺 871 38 34ms 6 Jan 2025 269th SirBogman 🇺🇸 871 38 52ms 15 Jan 2025 269th blaztoma 🇱🇹 871 38 47ms 21 Sep 2025 269th snoozingnewt 🇨🇦 871 38 37ms 15 Oct 2025 278th ovs-code 🇩🇪 871 52 72ms 3 Jan 2025 279th ovs-code 🇩🇪 870 54 371ms 15 Jul 2025 280th lynn 869 117 160ms 14 Nov 2025 281st andrewl64 868 75 10ms 25 Sep 2025 282nd ovs-code 🇩🇪 868 82 450ms 5 Jan 2025 283rd IISResetMe 864 57 263ms 7 Apr 2025 284th ovs-code 🇩🇪 863 97 497ms 5 Jan 2025 285th MeWhenI 🇻🇦 863 101 9ms 26 Feb 2025 286th JayXon 🇺🇸 862 98 364ms 9 Jan 2025 287th error256 862 100 26ms 10 May 2025 288th ovs-code 🇩🇪 860 64 9ms 5 Jan 2025 289th sean-niemann 🇺🇸 859 35 3ms 31 Dec 2024 289th DialFrost 🇸🇬 859 35 2ms 31 Dec 2024 289th error256 859 35 2ms 13 Jan 2025 289th Natanaelel 🇸🇪 859 35 2ms 14 Jan 2025 289th nwellnhof 🇩🇪 859 35 2ms 14 Jan 2025 289th SirBogman 🇺🇸 859 35 2ms 15 Jan 2025 289th MeWhenI 🇻🇦 859 35 2ms 14 Feb 2025 289th fuzzylojik-golf 🇺🇸 859 35 3ms 16 May 2025 289th xsot 🇸🇬 859 35 3ms 27 Jun 2025 289th iczelia 🇩🇪 859 35 3ms 21 Sep 2025 299th edsrzf 🇳🇿 858 75 100ms 17 days ago 300th evan18c 857 76 10ms 17 Apr 2025 301st error256 857 77 71ms 9 Jan 2025 302nd rucin93 🇵🇱 857 89 162ms 11 days ago 302nd sean-niemann 🇺🇸 857 89 152ms 11 days ago 304th lyphyser 855 42 48ms 3 Jan 2025 305th antimon2 🇯🇵 855 55 340ms 6 Jan 2025 306th stefangimmillaro 855 102 10ms 2 Jan 2025 306th GolfingSuccess 🇬🇷 855 102 10ms 3 Jan 2025 306th kirjavascript 855 102 9ms 14 Feb 2025 306th junkondo-jp 855 102 9ms 30 May 2025 306th pardouin 🇫🇷 855 102 9ms 28 Jul 2025 311th edsrzf 🇳🇿 854 83 33ms 18 days ago 311th sean-niemann 🇺🇸 854 83 3ms 2 days ago 313th edsrzf 🇳🇿 854 99 376ms 9 Jul 2025 314th JayXon 🇺🇸 853 73 293ms 24 May 2025 315th m-tkach 🇺🇦 853 118 26ms 9 Jan 2025 316th JayXon 🇺🇸 851 107 162ms 9 Jan 2025 317th janAkali 🇷🇺 850 20 13ms 5 May 2025 317th snoozingnewt 🇨🇦 850 20 14ms 13 days ago 319th canissimia 🇦🇶 850 113 7ms 10 Mar 2025 320th MeWhenI 🇻🇦 848 39 35ms 3 Jan 2025 First Prev 241–320 of 971 Next Last