The Calendar hole will go live in approximately 4 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 pardouin 🇫🇷 888 62 342ms 5 Jan 2025 241st GolfingSuccess 🇬🇷 888 62 349ms 24 Jan 2025 243rd nwellnhof 🇩🇪 888 80 379ms 27 Jul 2025 244th JayXon 🇺🇸 887 53 310ms 10 Jan 2025 245th ovs-code 🇩🇪 885 42 4ms 5 Jan 2025 245th TheLastZombie 885 42 7ms 10 Jan 2025 245th blaztoma 🇱🇹 885 42 4ms 21 Sep 2025 248th JayXon 🇺🇸 885 95 3ms 9 Jan 2025 248th edsrzf 🇳🇿 885 95 2ms 9 Jan 2025 250th nwellnhof 🇩🇪 885 123 281ms 28 Jul 2025 250th JayXon 🇺🇸 885 123 282ms 28 Jul 2025 252nd nwellnhof 🇩🇪 884 95 447ms 25 Sep 2025 253rd pardouin 🇫🇷 883 57 1,090ms 28 Jul 2025 254th vlpx 🇫🇮 881 99 10ms 6 Jan 2025 255th SirBogman 🇺🇸 880 24 2ms 9 Jan 2025 256th kurkale6ka 880 74 11ms 12 days ago 257th MeWhenI 🇻🇦 879 85 4ms 4 Jan 2025 257th sisyphus-ppcg 🇦🇺 879 85 4ms 5 Jan 2025 257th retrohun 879 85 5ms 5 Jan 2025 257th saito-ta 🇯🇵 879 85 5ms 12 Jan 2025 257th nwellnhof 🇩🇪 879 85 4ms 23 Jul 2025 257th jared-hughes 879 85 184ms 22 Sep 2025 263rd DialFrost 🇸🇬 878 48 652ms 31 Aug 2025 263rd snoozingnewt 🇨🇦 878 48 637ms 17 days ago 265th ovs-code 🇩🇪 875 118 134ms 5 Jan 2025 265th lynn 875 118 136ms 6 Jan 2025 265th xnor-gate 875 118 128ms 6 Jan 2025 265th Sakisan 🇧🇪 875 118 129ms 6 Jun 2025 265th edsrzf 🇳🇿 875 118 152ms 6 days ago 270th JayXon 🇺🇸 872 74 131ms 28 Jul 2025 271st KasperKivimaeki 🇫🇮 872 96 394ms 4 Jan 2025 272nd ovs-code 🇩🇪 872 100 9ms 7 Jan 2025 273rd stefangimmillaro 871 38 38ms 31 Dec 2024 273rd Natanaelel 🇸🇪 871 38 36ms 3 Jan 2025 273rd edsrzf 🇳🇿 871 38 35ms 5 Jan 2025 273rd Shanethegamer 🇺🇸 871 38 36ms 5 Jan 2025 273rd JayXon 🇺🇸 871 38 35ms 6 Jan 2025 273rd anter69 🇭🇺 871 38 37ms 6 Jan 2025 273rd SirBogman 🇺🇸 871 38 33ms 15 Jan 2025 273rd blaztoma 🇱🇹 871 38 36ms 21 Sep 2025 273rd snoozingnewt 🇨🇦 871 38 36ms 15 Oct 2025 282nd ovs-code 🇩🇪 871 52 72ms 3 Jan 2025 283rd ovs-code 🇩🇪 870 54 297ms 15 Jul 2025 284th lynn 869 117 160ms 14 Nov 2025 285th andrewl64 868 75 10ms 25 Sep 2025 286th ovs-code 🇩🇪 868 82 450ms 5 Jan 2025 287th IISResetMe 864 57 214ms 7 Apr 2025 288th ovs-code 🇩🇪 863 97 416ms 5 Jan 2025 289th MeWhenI 🇻🇦 863 101 9ms 26 Feb 2025 290th JayXon 🇺🇸 862 98 364ms 9 Jan 2025 291st error256 862 100 26ms 10 May 2025 292nd ovs-code 🇩🇪 860 64 9ms 5 Jan 2025 293rd sean-niemann 🇺🇸 859 35 3ms 31 Dec 2024 293rd DialFrost 🇸🇬 859 35 2ms 31 Dec 2024 293rd error256 859 35 2ms 13 Jan 2025 293rd Natanaelel 🇸🇪 859 35 2ms 14 Jan 2025 293rd nwellnhof 🇩🇪 859 35 2ms 14 Jan 2025 293rd SirBogman 🇺🇸 859 35 2ms 15 Jan 2025 293rd MeWhenI 🇻🇦 859 35 2ms 14 Feb 2025 293rd fuzzylojik-golf 🇺🇸 859 35 3ms 16 May 2025 293rd xsot 🇸🇬 859 35 3ms 27 Jun 2025 293rd iczelia 🇩🇪 859 35 3ms 21 Sep 2025 303rd edsrzf 🇳🇿 858 75 100ms 26 days ago 304th evan18c 857 76 10ms 17 Apr 2025 305th error256 857 77 66ms 9 Jan 2025 306th rucin93 🇵🇱 857 89 162ms 20 days ago 306th sean-niemann 🇺🇸 857 89 152ms 20 days ago 308th lyphyser 855 42 48ms 3 Jan 2025 309th antimon2 🇯🇵 855 55 263ms 6 Jan 2025 310th stefangimmillaro 855 102 10ms 2 Jan 2025 310th GolfingSuccess 🇬🇷 855 102 10ms 3 Jan 2025 310th kirjavascript 855 102 9ms 14 Feb 2025 310th junkondo-jp 855 102 9ms 30 May 2025 310th pardouin 🇫🇷 855 102 9ms 28 Jul 2025 315th edsrzf 🇳🇿 854 83 33ms 27 days ago 315th sean-niemann 🇺🇸 854 83 3ms 11 days ago 317th edsrzf 🇳🇿 854 99 376ms 9 Jul 2025 318th JayXon 🇺🇸 853 73 293ms 24 May 2025 319th m-tkach 🇺🇦 853 118 26ms 9 Jan 2025 320th JayXon 🇺🇸 851 107 162ms 9 Jan 2025 First Prev 241–320 of 975 Next Last