The Calendar hole will go live in approximately 9 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 158th Sakisan 🇧🇪 875 118 129ms 6 Jun 2025 158th edsrzf 🇳🇿 875 118 152ms 31 hours ago 163rd GolfingSuccess 🇬🇷 873 58 394ms 22 Jan 2025 163rd fuzzylojik-golf 🇺🇸 873 58 356ms 7 Jul 2025 163rd b-illy 🇬🇧 873 58 350ms 13 Jul 2025 163rd emgordon154 873 58 349ms 18 Jul 2025 163rd CornerMercury 🇬🇧 873 58 356ms 12 Oct 2025 163rd CaedenHarper 🇨🇦 873 58 368ms 30 Oct 2025 169th ovs-code 🇩🇪 872 52 371ms 15 Jul 2025 170th JayXon 🇺🇸 872 74 131ms 28 Jul 2025 171st KasperKivimaeki 🇫🇮 872 96 394ms 4 Jan 2025 172nd stefangimmillaro 871 38 37ms 31 Dec 2024 172nd Natanaelel 🇸🇪 871 38 41ms 3 Jan 2025 172nd edsrzf 🇳🇿 871 38 37ms 5 Jan 2025 172nd Shanethegamer 🇺🇸 871 38 52ms 5 Jan 2025 172nd JayXon 🇺🇸 871 38 56ms 6 Jan 2025 172nd anter69 🇭🇺 871 38 34ms 6 Jan 2025 172nd SirBogman 🇺🇸 871 38 52ms 15 Jan 2025 172nd blaztoma 🇱🇹 871 38 47ms 21 Sep 2025 172nd snoozingnewt 🇨🇦 871 38 37ms 15 Oct 2025 181st ovs-code 🇩🇪 871 52 72ms 3 Jan 2025 182nd dmrichwa 🇺🇸 870 95 9ms 8 Jan 2025 182nd KingSkyrock 🇺🇸 870 95 9ms 10 Jan 2025 184th lynn 869 117 160ms 14 Nov 2025 185th ovs-code 🇩🇪 868 82 450ms 5 Jan 2025 186th IISResetMe 864 57 263ms 7 Apr 2025 187th ovs-code 🇩🇪 863 97 497ms 5 Jan 2025 188th JayXon 🇺🇸 862 98 364ms 9 Jan 2025 189th error256 862 100 26ms 10 May 2025 190th ovs-code 🇩🇪 860 64 9ms 5 Jan 2025 191st sean-niemann 🇺🇸 859 35 3ms 31 Dec 2024 191st DialFrost 🇸🇬 859 35 2ms 31 Dec 2024 191st error256 859 35 2ms 13 Jan 2025 191st Natanaelel 🇸🇪 859 35 2ms 14 Jan 2025 191st nwellnhof 🇩🇪 859 35 2ms 14 Jan 2025 191st SirBogman 🇺🇸 859 35 2ms 15 Jan 2025 191st MeWhenI 🇻🇦 859 35 2ms 14 Feb 2025 191st fuzzylojik-golf 🇺🇸 859 35 3ms 16 May 2025 191st xsot 🇸🇬 859 35 3ms 27 Jun 2025 191st iczelia 🇩🇪 859 35 3ms 21 Sep 2025 201st sean-niemann 🇺🇸 858 59 337ms 2 Jul 2025 201st Babafaba 858 59 362ms 30 Oct 2025 203rd error256 858 75 69ms 9 Jan 2025 203rd edsrzf 🇳🇿 858 75 100ms 21 days ago 205th rucin93 🇵🇱 857 89 162ms 14 days ago 205th sean-niemann 🇺🇸 857 89 152ms 14 days ago 207th edsrzf 🇳🇿 854 83 33ms 22 days ago 207th sean-niemann 🇺🇸 854 83 3ms 6 days ago 209th edsrzf 🇳🇿 854 99 376ms 9 Jul 2025 210th JayXon 🇺🇸 853 73 293ms 24 May 2025 211th m-tkach 🇺🇦 853 118 26ms 9 Jan 2025 212th error256 852 97 10ms 9 Jan 2025 212th nwellnhof 🇩🇪 852 97 10ms 27 Jul 2025 214th JayXon 🇺🇸 851 107 162ms 9 Jan 2025 215th janAkali 🇷🇺 850 20 13ms 5 May 2025 215th snoozingnewt 🇨🇦 850 20 14ms 17 days ago 217th canissimia 🇦🇶 850 113 7ms 10 Mar 2025 218th MeWhenI 🇻🇦 848 39 35ms 3 Jan 2025 218th m-tkach 🇺🇦 848 39 52ms 6 Jan 2025 218th KatieLG 🇬🇧 848 39 32ms 7 Jan 2025 218th BREMAUCY 🇫🇷 848 39 35ms 6 Aug 2025 222nd JayXon 🇺🇸 848 118 5ms 11 Jan 2025 223rd ovs-code 🇩🇪 847 25 56ms 5 Jan 2025 224th edsrzf 🇳🇿 847 65 8ms 25 Aug 2025 225th JayXon 🇺🇸 847 84 448ms 8 Jan 2025 226th error256 847 85 126ms 9 Jan 2025 227th ovs-code 🇩🇪 846 84 373ms 6 Jan 2025 228th HumanoidCPU 845 44 6ms 1 Feb 2025 228th plcc0 845 44 4ms 9 Apr 2025 230th Yewzir 🇧🇪 844 60 357ms 2 Jan 2025 230th DialFrost 🇸🇬 844 60 366ms 5 Jan 2025 230th HumanoidCPU 844 60 364ms 7 Jan 2025 230th commandblockguy 🇺🇸 844 60 419ms 1 Sep 2025 230th snoozingnewt 🇨🇦 844 60 357ms 15 Oct 2025 235th saito-ta 🇯🇵 844 115 25ms 12 Jan 2025 236th GrayJoKing 🇦🇺 843 96 28ms 26 days ago 237th primo-ppcg 🇹🇭 843 117 42ms 27 Apr 2025 238th JayXon 🇺🇸 842 99 1,368ms 10 Jan 2025 239th antimon2 🇯🇵 840 54 340ms 6 Jan 2025 240th Shanethegamer 🇺🇸 840 100 2ms 5 Jan 2025 First Prev 161–240 of 966 Next Last