The Calendar hole will go live in approximately 10 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 721st emgordon154 584 93 4,866ms 2 Aug 2025 722nd gastropner 584 114 2ms 5 Jul 2025 722nd jupj 🇫🇮 584 114 2ms 27 Aug 2025 724th Shanethegamer 🇺🇸 584 177 138ms 3 Jan 2025 724th WatMan77 584 177 132ms 27 May 2025 726th Shanethegamer 🇺🇸 583 143 1,244ms 4 Jan 2025 727th 051 🇸🇬 581 112 10ms 8 Oct 2025 728th mousetail 🇳🇱 579 59 24ms 6 Feb 2025 729th HumanoidCPU 579 95 7ms 1 Feb 2025 730th Ripick 579 146 343ms 15 Feb 2025 731st emgordon154 578 87 1,046ms 5 Jan 2025 732nd frankgraziano 578 132 2ms 16 May 2025 733rd Natanaelel 🇸🇪 577 62 32ms 11 Jul 2025 734th CaedenHarper 🇨🇦 574 116 4ms 21 Nov 2025 735th te-chnical 571 114 17ms 7 May 2025 736th ikskuh 570 147 62ms 26 Sep 2025 737th jbdrucker 570 153 11ms 24 Jan 2025 738th blaztoma 🇱🇹 570 186 37ms 21 Sep 2025 739th blaztoma 🇱🇹 569 117 4ms 21 Sep 2025 740th HumanoidCPU 568 182 160ms 21 Nov 2025 741st snoozingnewt 🇨🇦 566 83 297ms 24 days ago 742nd AstroOrbis 566 115 10ms 12 Jul 2025 742nd Matter1024 🇮🇳 566 115 11ms 25 Aug 2025 744th yzhs 🇩🇪 561 116 11ms 17 Jan 2025 745th bac0id 560 119 2ms 10 Jan 2025 746th Jaydosu 557 117 11ms 16 Apr 2025 746th calebaitken 557 117 11ms 16 Apr 2025 746th adoxography 557 117 10ms 31 Aug 2025 749th janAkali 🇷🇺 556 152 376ms 18 Jan 2025 750th GolfingSuccess 🇬🇷 555 322 56ms 2 Jan 2025 751st jkelly467 554 98 3,086ms 10 days ago 752nd tomh1012 554 128 416ms 12 Sep 2025 753rd msbranicky 553 138 2ms 4 Jan 2025 754th miabea73 553 152 423ms 26 Aug 2025 755th rucin93 🇵🇱 553 184 209ms 5 Jan 2025 756th Yewzir 🇧🇪 551 121 1ms 6 Jan 2025 757th snoozingnewt 🇨🇦 550 185 181ms 2 Nov 2025 758th Shanethegamer 🇺🇸 546 160 26ms 5 Jan 2025 759th SB-945 543 120 11ms 5 Jan 2025 759th randolchance 543 120 23ms 20 May 2025 759th yokasuretsu 543 120 11ms 12 Jul 2025 759th Bmrl7 543 120 17ms 27 days ago 763rd not-a-pokemon 542 123 5ms 18 Apr 2025 764th dokutan 542 155 3ms 11 Feb 2025 765th Siri-chan 542 161 11ms 8 Jan 2025 766th andrewl64 542 179 2,388ms 25 Sep 2025 767th Natanaelel 🇸🇪 541 39 2ms 9 Jan 2025 768th MeWhenI 🇻🇦 541 91 284ms 10 Jul 2025 769th dokutan 541 93 939ms 5 Feb 2025 770th lukechampine 539 202 263ms 7 Jun 2025 771st shaneliu-zf 🇹🇼 538 101 4,307ms 30 May 2025 772nd JunkIce 538 121 11ms 12 Feb 2025 773rd ravnskjaer 🇩🇰 538 156 342ms 6 days ago 774th HumanoidCPU 538 189 185ms 1 Feb 2025 775th ikskuh 537 124 1ms 27 Jun 2025 776th CarsonChr 🇺🇸 537 132 415ms 5 Jan 2025 777th pquline 534 122 17ms 15 Mar 2025 778th MeWhenI 🇻🇦 529 122 130ms 6 Jan 2025 779th snoozingnewt 🇨🇦 529 159 3ms 2 Nov 2025 780th vhoulbreque 🇫🇷 525 124 16ms 16 Feb 2025 781st Shanethegamer 🇺🇸 524 96 973ms 1 Jan 2025 782nd msbranicky 523 208 259ms 6 Jan 2025 783rd cyrilboyer 🇫🇷 522 195 153ms 13 Jan 2025 784th Mikey-Beep 🇬🇧 521 125 12ms 8 Jul 2025 785th DialFrost 🇸🇬 519 97 982ms 5 Jan 2025 786th Schmitt-Very-Cool 518 162 452ms 3 Oct 2025 787th olleicua 🇺🇸 517 64 45ms 9 Mar 2025 788th osNiko 🇧🇷 517 126 11ms 16 Aug 2025 789th iilegacyyii 516 129 2ms 16 Jan 2025 790th MyXoToD 🇩🇪 516 169 9ms 20 May 2025 791st madex 🇩🇪 516 197 192ms 4 Jan 2025 792nd michelebastione 🇮🇹 514 138 377ms 21 Aug 2025 793rd blaztoma 🇱🇹 514 196 27ms 21 Sep 2025 794th Bobini1 🇵🇱 513 127 16ms 15 Jan 2025 794th matsagad 513 127 34ms 16 Jan 2025 796th CaedenHarper 🇨🇦 510 139 376ms 16 Oct 2025 797th Mabeloid 🇳🇴 509 131 4ms 21 Oct 2025 798th JDiLenarda 🇫🇷 508 164 1,354ms 17 Jun 2025 799th JOrE20 🇺🇸 507 127 101ms 16 days ago 800th Siri-chan 506 201 169ms 8 Jan 2025 First Prev 721–800 of 972 Next Last