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 721st snoozingnewt 🇨🇦 587 143 592ms 2 Nov 2025 722nd dokutan 586 147 26ms 20 Feb 2025 723rd martindotexe 🇳🇴 585 186 290ms 16 May 2025 724th emgordon154 584 93 3,309ms 2 Aug 2025 725th gastropner 584 114 2ms 5 Jul 2025 725th jupj 🇫🇮 584 114 2ms 27 Aug 2025 727th Shanethegamer 🇺🇸 584 177 138ms 3 Jan 2025 727th WatMan77 584 177 132ms 27 May 2025 729th Shanethegamer 🇺🇸 583 143 1,244ms 4 Jan 2025 730th 051 🇸🇬 582 112 10ms 8 Oct 2025 731st mousetail 🇳🇱 579 59 24ms 6 Feb 2025 732nd HumanoidCPU 579 95 7ms 1 Feb 2025 733rd Ripick 579 146 343ms 15 Feb 2025 734th emgordon154 578 87 1,046ms 5 Jan 2025 735th frankgraziano 578 132 2ms 16 May 2025 736th Natanaelel 🇸🇪 577 62 32ms 11 Jul 2025 737th CaedenHarper 🇨🇦 574 116 4ms 21 Nov 2025 738th te-chnical 571 114 17ms 7 May 2025 739th ikskuh 570 147 62ms 26 Sep 2025 740th jbdrucker 570 153 11ms 24 Jan 2025 741st blaztoma 🇱🇹 570 186 37ms 21 Sep 2025 742nd blaztoma 🇱🇹 569 117 4ms 21 Sep 2025 743rd HumanoidCPU 568 182 160ms 21 Nov 2025 744th snoozingnewt 🇨🇦 566 83 214ms 27 Nov 2025 745th AstroOrbis 566 115 10ms 12 Jul 2025 745th Matter1024 🇮🇳 566 115 11ms 25 Aug 2025 747th yzhs 🇩🇪 561 116 11ms 17 Jan 2025 748th bac0id 560 119 2ms 10 Jan 2025 749th Jaydosu 557 117 11ms 16 Apr 2025 749th calebaitken 557 117 11ms 16 Apr 2025 749th adoxography 557 117 10ms 31 Aug 2025 752nd janAkali 🇷🇺 556 152 376ms 18 Jan 2025 753rd tomh1012 555 128 411ms 12 Sep 2025 754th GolfingSuccess 🇬🇷 555 322 55ms 2 Jan 2025 755th jkelly467 554 98 2,932ms 16 days ago 756th msbranicky 553 138 2ms 4 Jan 2025 757th miabea73 553 152 423ms 26 Aug 2025 758th rucin93 🇵🇱 553 184 195ms 5 Jan 2025 759th Yewzir 🇧🇪 551 121 1ms 6 Jan 2025 760th snoozingnewt 🇨🇦 550 185 181ms 2 Nov 2025 761st michelebastione 🇮🇹 547 130 430ms 2 days ago 762nd Shanethegamer 🇺🇸 546 160 26ms 5 Jan 2025 763rd SB-945 543 120 11ms 5 Jan 2025 763rd randolchance 543 120 23ms 20 May 2025 763rd yokasuretsu 543 120 11ms 12 Jul 2025 763rd Bmrl7 543 120 17ms 23 Nov 2025 767th not-a-pokemon 542 123 5ms 18 Apr 2025 768th dokutan 542 155 4ms 11 Feb 2025 769th Siri-chan 542 161 11ms 8 Jan 2025 770th andrewl64 542 179 1,950ms 25 Sep 2025 771st Natanaelel 🇸🇪 541 39 2ms 9 Jan 2025 772nd MeWhenI 🇻🇦 541 91 273ms 10 Jul 2025 773rd dokutan 541 93 939ms 5 Feb 2025 774th lukechampine 539 202 263ms 7 Jun 2025 775th shaneliu-zf 🇹🇼 538 101 3,672ms 30 May 2025 776th JunkIce 538 121 11ms 12 Feb 2025 777th CarsonChr 🇺🇸 538 132 411ms 5 Jan 2025 778th ravnskjaer 🇩🇰 538 156 342ms 12 days ago 779th HumanoidCPU 538 189 185ms 1 Feb 2025 780th ikskuh 537 124 1ms 27 Jun 2025 781st pquline 534 122 17ms 15 Mar 2025 782nd MeWhenI 🇻🇦 529 122 130ms 6 Jan 2025 783rd snoozingnewt 🇨🇦 529 159 3ms 2 Nov 2025 784th vhoulbreque 🇫🇷 525 124 16ms 16 Feb 2025 785th Shanethegamer 🇺🇸 524 96 973ms 1 Jan 2025 786th msbranicky 523 208 259ms 6 Jan 2025 787th cyrilboyer 🇫🇷 522 195 153ms 13 Jan 2025 788th Mikey-Beep 🇬🇧 521 125 12ms 8 Jul 2025 789th DialFrost 🇸🇬 519 97 982ms 5 Jan 2025 790th Schmitt-Very-Cool 518 162 452ms 3 Oct 2025 791st olleicua 🇺🇸 517 64 44ms 9 Mar 2025 792nd osNiko 🇧🇷 517 126 11ms 16 Aug 2025 793rd iilegacyyii 516 129 2ms 16 Jan 2025 794th MyXoToD 🇩🇪 516 169 9ms 20 May 2025 795th madex 🇩🇪 516 197 192ms 4 Jan 2025 796th blaztoma 🇱🇹 514 196 27ms 21 Sep 2025 797th Bobini1 🇵🇱 513 127 16ms 15 Jan 2025 797th matsagad 513 127 34ms 16 Jan 2025 799th CaedenHarper 🇨🇦 511 139 376ms 16 Oct 2025 800th Mabeloid 🇳🇴 509 131 4ms 21 Oct 2025 First Prev 721–800 of 975 Next Last