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 560th Andriamanitra 🇫🇮 715 144 149ms 7 Jun 2025 562nd DialFrost 🇸🇬 712 66 437ms 3 Jan 2025 563rd luuumine 🇫🇷 711 143 141ms 10 days ago 564th MeWhenI 🇻🇦 711 153 262ms 7 Jan 2025 565th albanian-laundromat 710 141 4ms 5 Jul 2025 566th DialFrost 🇸🇬 709 94 4ms 3 Jan 2025 567th helbling 🇨🇭 709 123 10ms 5 Jan 2025 568th Upload-and-View 🇺🇦 706 119 2ms 24 Jul 2025 569th DialFrost 🇸🇬 706 253 3,989ms 13 Aug 2025 570th edsrzf 🇳🇿 705 124 26ms 26 Aug 2025 571st stackofbears 702 51 34ms 10 Jan 2025 572nd emgordon154 702 145 158ms 14 Mar 2025 573rd j2e2 🇪🇸 701 95 2ms 19 Feb 2025 573rd iczelia 🇩🇪 701 95 4ms 24 Sep 2025 575th DialFrost 🇸🇬 700 92 105ms 18 days ago 576th pardouin 🇫🇷 697 78 3,599ms 4 Jan 2025 576th stefangimmillaro 697 78 4,029ms 4 Jan 2025 576th ScottHamper 697 78 4,731ms 19 Jan 2025 579th tobeannouncd 696 148 129ms 20 Jan 2025 580th stefangimmillaro 695 121 336ms 6 Jan 2025 581st stefangimmillaro 695 131 153ms 3 Jan 2025 582nd albanian-laundromat 693 153 48ms 8 Sep 2025 583rd GolfingSuccess 🇬🇷 692 108 4ms 31 Dec 2024 583rd Shanethegamer 🇺🇸 692 108 4ms 1 Jan 2025 583rd helbling 🇨🇭 692 108 4ms 4 Jan 2025 583rd dokutan 692 108 4ms 6 Jan 2025 583rd galloj 🇨🇿 692 108 4ms 23 Jan 2025 583rd edsrzf 🇳🇿 692 108 4ms 14 Mar 2025 583rd stefangimmillaro 692 108 4ms 12 Jul 2025 583rd iczelia 🇩🇪 692 108 4ms 21 Sep 2025 583rd emgordon154 692 108 4ms 3 Nov 2025 592nd Salutations45 692 126 9ms 5 Jan 2025 593rd dominikfhnw 691 52 47ms 30 Mar 2025 594th SirBogman 🇺🇸 690 143 144ms 3 Jun 2025 595th fuzzylojik-golf 🇺🇸 689 103 384ms 23 May 2025 596th charliegaming 687 127 9ms 24 Jan 2025 597th elgan65536 687 148 142ms 16 Jan 2025 598th MeWhenI 🇻🇦 686 122 574ms 6 Jan 2025 599th snoozingnewt 🇨🇦 685 94 96ms 11 days ago 600th stefangimmillaro 685 144 46ms 14 Jan 2025 601st iczelia 🇩🇪 682 151 133ms 21 Sep 2025 602nd SirBogman 🇺🇸 680 98 4ms 16 Jan 2025 603rd CaedenHarper 🇨🇦 680 160 268ms 27 days ago 604th qbitYouri 678 124 2ms 4 Apr 2025 605th nullie 678 150 142ms 6 Apr 2025 606th gigaprofisi 🇺🇸 676 129 10ms 7 Aug 2025 607th 0xjac 🇨🇭 676 161 320ms 11 Jun 2025 608th snoozingnewt 🇨🇦 672 53 183ms 2 Nov 2025 609th BambooleanLogic 🇸🇪 671 130 10ms 17 Jul 2025 610th MeWhenI 🇻🇦 670 93 169ms 7 Jan 2025 611th j2e2 🇪🇸 669 106 6ms 9 Feb 2025 612th KasperKivimaeki 🇫🇮 669 152 179ms 3 May 2025 613th Shanethegamer 🇺🇸 667 126 374ms 5 Jan 2025 613th h3ra993huskp 🇯🇵 667 126 542ms 18 days ago 615th Ephellon 666 131 9ms 1 Feb 2025 616th AlephSquirrel 665 111 3ms 21 Jan 2025 617th Herbert00709 🇵🇱 665 126 66ms 5 Jan 2025 618th MeWhenI 🇻🇦 665 137 122ms 7 Jan 2025 619th MeWhenI 🇻🇦 662 186 1,793ms 7 Nov 2025 620th fuzzylojik-golf 🇺🇸 661 32 64ms 10 Jul 2025 621st HumanoidCPU 661 132 9ms 7 Jan 2025 621st weliveinhell 🇭🇹 661 132 10ms 26 Jun 2025 623rd Shanethegamer 🇺🇸 660 100 70ms 7 Jan 2025 624th MeWhenI 🇻🇦 660 101 4ms 6 Jan 2025 625th Feniske 🇫🇷 657 75 318ms 14 Jan 2025 626th Yewzir 🇧🇪 656 166 267ms 6 Jan 2025 627th error256 655 83 4,370ms 9 Jan 2025 628th emgordon154 655 188 1,655ms 11 Jun 2025 629th snoozingnewt 🇨🇦 652 57 4ms 2 Nov 2025 630th Mabeloid 🇳🇴 652 156 147ms 26 Oct 2025 631st Natanaelel 🇸🇪 652 158 210ms 26 Apr 2025 632nd LukeBridges 🇬🇧 651 134 9ms 8 Jan 2025 633rd snoozingnewt 🇨🇦 648 159 136ms 2 Nov 2025 634th luuumine 🇫🇷 647 103 4ms 10 days ago 635th Sciman101 647 130 2ms 26 Mar 2025 636th GolfingSuccess 🇬🇷 646 118 28ms 2 Jan 2025 636th edsrzf 🇳🇿 646 118 10ms 25 Aug 2025 638th tayloia 🇬🇧 646 135 10ms 12 Jan 2025 639th Shanethegamer 🇺🇸 645 110 430ms 6 Jan 2025 640th SirBogman 🇺🇸 645 277 58ms 21 Jan 2025 First Prev 561–640 of 970 Next Last