The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
ROT13 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 67th RYSF13 🇨🇳 928 61 10ms 18 Jul 2025 67th snoozingnewt 🇨🇦 928 61 11ms 15 Oct 2025 67th JOrE20 🇺🇸 928 61 11ms 18 days ago 84th JayXon 🇺🇸 928 89 10ms 28 Jul 2025 85th nwellnhof 🇩🇪 926 71 5ms 28 Jul 2025 86th JayXon 🇺🇸 920 55 353ms 5 Jan 2025 86th kg583 🇺🇸 920 55 359ms 9 Jul 2025 88th GolfingSuccess 🇬🇷 919 36 44ms 31 Dec 2024 88th radarek 🇵🇱 919 36 45ms 3 Jan 2025 88th error256 919 36 39ms 3 Jan 2025 88th emgordon154 919 36 41ms 5 Jan 2025 88th Lydxn 🇨🇦 919 36 40ms 23 Jan 2025 88th xsot 🇸🇬 919 36 39ms 28 Jun 2025 88th sean-niemann 🇺🇸 919 36 38ms 15 Oct 2025 95th lukegustafson 🇺🇸 918 90 10ms 11 Jan 2025 96th ovs-code 🇩🇪 913 39 114ms 4 Jan 2025 96th lynn 913 39 120ms 6 Jan 2025 96th sisyphus-ppcg 🇦🇺 913 39 98ms 6 Jan 2025 96th pardouin 🇫🇷 913 39 114ms 7 Jan 2025 96th tatzyr 🇯🇵 913 39 113ms 1 Mar 2025 101st KasperKivimaeki 🇫🇮 913 72 5ms 3 Jan 2025 101st JayXon 🇺🇸 913 72 4ms 3 May 2025 103rd emplv 🇱🇻 908 91 10ms 19 Jan 2025 104th DialFrost 🇸🇬 906 41 5ms 31 Dec 2024 104th TomvdPeet 906 41 5ms 3 Jan 2025 104th emplv 🇱🇻 906 41 5ms 3 Jan 2025 104th error256 906 41 5ms 5 Jan 2025 104th rucin93 🇵🇱 906 41 5ms 5 Jan 2025 104th alaaeelsayed 906 41 6ms 14 Jan 2025 104th KasperKivimaeki 🇫🇮 906 41 7ms 15 days ago 111th pardouin 🇫🇷 904 56 324ms 5 Jan 2025 112th JayXon 🇺🇸 900 93 414ms 28 Jul 2025 112th nwellnhof 🇩🇪 900 93 394ms 6 Aug 2025 114th GrayJoKing 🇦🇺 899 38 30ms 22 Mar 2025 115th JayXon 🇺🇸 899 56 1,033ms 28 Jul 2025 116th Keegan-T 🇨🇦 899 63 10ms 20 Apr 2025 117th JayXon 🇺🇸 899 79 394ms 28 Jul 2025 118th rucin93 🇵🇱 898 92 10ms 6 Jan 2025 118th sean-niemann 🇺🇸 898 92 10ms 5 Feb 2025 120th edsrzf 🇳🇿 896 47 692ms 29 Aug 2025 120th GolfingSuccess 🇬🇷 896 47 646ms 29 Aug 2025 120th CaedenHarper 🇨🇦 896 47 672ms 7 Sep 2025 120th sean-niemann 🇺🇸 896 47 737ms 20 Sep 2025 120th albanian-laundromat 896 47 713ms 29 Sep 2025 120th xsot 🇸🇬 896 47 688ms 15 Nov 2025 126th GolfingSuccess 🇬🇷 895 19 14ms 25 Jan 2025 127th nwellnhof 🇩🇪 895 55 218ms 6 Aug 2025 128th ovs-code 🇩🇪 894 40 33ms 4 Jan 2025 128th Frowny 894 40 33ms 26 Jan 2025 128th 2bular 894 40 32ms 15 Oct 2025 131st JayXon 🇺🇸 893 94 443ms 1 Oct 2025 132nd JayXon 🇺🇸 892 114 160ms 3 May 2025 132nd acotis 892 114 164ms 21 Sep 2025 132nd kumavale 892 114 163ms 24 Nov 2025 135th JayXon 🇺🇸 891 61 3,265ms 9 Jan 2025 136th canissimia 🇦🇶 890 84 166ms 5 Jan 2025 136th ovs-code 🇩🇪 890 84 167ms 5 Jan 2025 136th DialFrost 🇸🇬 890 84 175ms 5 Jan 2025 139th JayXon 🇺🇸 889 51 310ms 10 Jan 2025 140th nwellnhof 🇩🇪 888 80 379ms 27 Jul 2025 141st ovs-code 🇩🇪 885 42 4ms 5 Jan 2025 141st TheLastZombie 885 42 7ms 10 Jan 2025 141st blaztoma 🇱🇹 885 42 4ms 21 Sep 2025 144th JayXon 🇺🇸 885 95 3ms 9 Jan 2025 144th edsrzf 🇳🇿 885 95 2ms 9 Jan 2025 146th nwellnhof 🇩🇪 885 123 281ms 28 Jul 2025 146th JayXon 🇺🇸 885 123 282ms 28 Jul 2025 148th nwellnhof 🇩🇪 884 95 447ms 25 Sep 2025 149th pardouin 🇫🇷 883 57 1,090ms 28 Jul 2025 150th SirBogman 🇺🇸 880 24 2ms 9 Jan 2025 151st MeWhenI 🇻🇦 879 85 4ms 4 Jan 2025 151st sisyphus-ppcg 🇦🇺 879 85 4ms 5 Jan 2025 151st retrohun 879 85 5ms 5 Jan 2025 151st saito-ta 🇯🇵 879 85 5ms 12 Jan 2025 151st nwellnhof 🇩🇪 879 85 4ms 23 Jul 2025 151st jared-hughes 879 85 184ms 22 Sep 2025 157th DialFrost 🇸🇬 878 48 652ms 31 Aug 2025 157th snoozingnewt 🇨🇦 878 48 637ms 15 days ago 159th ovs-code 🇩🇪 875 118 134ms 5 Jan 2025 159th lynn 875 118 136ms 6 Jan 2025 First Prev 81–160 of 967 Next Last