The Calendar hole will go live in approximately 5 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 481st GolfingSuccess 🇬🇷 793 84 2ms 3 Jan 2025 482nd DialFrost 🇸🇬 793 106 3ms 2 Jan 2025 482nd NickTheEASDude 🇺🇸 793 106 3ms 8 Jan 2025 484th BREMAUCY 🇫🇷 791 38 3ms 9 Jan 2025 485th esmaycat 786 107 2ms 13 Jan 2025 486th sean-niemann 🇺🇸 785 107 500ms 29 Sep 2025 487th ShiraJoseph 🇺🇸 785 111 9ms 5 Jan 2025 488th inventshah 784 85 2ms 26 Mar 2025 488th TeodorDyakov 🇧🇬 784 85 2ms 27 Sep 2025 490th alemelis 783 60 332ms 15 Jul 2025 491st edsrzf 🇳🇿 783 110 6ms 8 Jan 2025 492nd GolfingSuccess 🇬🇷 782 107 405ms 3 Jan 2025 493rd DialFrost 🇸🇬 782 124 2,709ms 12 Jan 2025 494th Yax42 🇫🇷 781 91 414ms 6 Jan 2025 495th edsrzf 🇳🇿 778 100 97ms 25 Aug 2025 496th zakariamouhid 778 112 9ms 8 Jan 2025 496th gnlow 🇰🇷 778 112 9ms 11 Feb 2025 498th rucin93 🇵🇱 777 83 128ms 6 Jan 2025 499th MeWhenI 🇻🇦 776 129 5ms 6 Jan 2025 500th KatieLG 🇬🇧 775 71 410ms 7 Jan 2025 501st roguh 🇬🇹 775 84 25ms 9 Jul 2025 502nd Mukundan314 775 86 2ms 28 Apr 2025 503rd tailorspy 775 108 409ms 10 Jan 2025 504th KasperKivimaeki 🇫🇮 773 22 14ms 15 Aug 2025 505th MeWhenI 🇻🇦 772 92 392ms 6 Jan 2025 506th SirBogman 🇺🇸 772 108 1,343ms 23 Jan 2025 507th CaedenHarper 🇨🇦 772 113 9ms 31 Aug 2025 508th KatieLG 🇬🇧 771 39 2ms 7 Jan 2025 509th DialFrost 🇸🇬 771 92 3ms 25 Aug 2025 510th ejini6969 769 43 48ms 14 Jun 2025 511th tatzyr 🇯🇵 769 191 15ms 6 Apr 2025 512th ovs-code 🇩🇪 767 86 71ms 5 Jan 2025 512th edsrzf 🇳🇿 767 86 70ms 12 Jul 2025 514th annaproxy 767 116 24ms 29 Aug 2025 515th Shanethegamer 🇺🇸 766 94 107ms 6 Jan 2025 516th Yax42 🇫🇷 765 114 11ms 13 Nov 2025 517th error256 765 133 150ms 3 May 2025 518th AdrienHache 🇫🇷 764 93 403ms 6 Jan 2025 519th namelessiw 764 110 445ms 3 Oct 2025 519th MeWhenI 🇻🇦 764 110 582ms 7 Nov 2025 521st error256 763 66 1,016ms 7 Jan 2025 522nd stefangimmillaro 759 45 18ms 6 Jan 2025 523rd edsrzf 🇳🇿 756 28 59ms 2 Nov 2025 524th MostParsingVex 754 111 418ms 7 Jan 2025 525th UnderKoen 🇳🇱 753 144 12ms 21 May 2025 526th snoozingnewt 🇨🇦 752 40 2ms 2 Nov 2025 527th smclaughlin-cf 752 116 9ms 21 Feb 2025 528th CLOStrophobic 🇮🇹 751 158 41ms 13 Feb 2025 529th GolfingSuccess 🇬🇷 750 272 1,514ms 11 Feb 2025 530th duckyluuk 🇳🇱 749 108 38ms 4 Jan 2025 531st rucin93 🇵🇱 748 89 2ms 2 Jan 2025 531st Alex-x90 🇺🇸 748 89 4ms 4 Jan 2025 533rd Cube14yt 745 117 9ms 13 Nov 2025 534th Vexxter9 🇳🇱 744 113 3ms 14 Jan 2025 535th error256 743 113 530ms 24 Sep 2025 536th stefangimmillaro 741 105 102ms 3 Jan 2025 537th qwertyuiop3 🇷🇺 741 113 405ms 15 May 2025 538th anter69 🇭🇺 740 68 1,003ms 13 Mar 2025 539th kkoenig 740 147 269ms 7 Sep 2025 540th MarcMush 🇫🇷 734 64 305ms 29 Jan 2025 541st snoozingnewt 🇨🇦 734 124 105ms 20 Nov 2025 542nd XenThe 🇬🇧 733 119 9ms 25 Nov 2025 543rd qwertyuiop3 🇷🇺 732 91 1ms 15 May 2025 544th rucin93 🇵🇱 731 88 108ms 18 Feb 2025 545th Salutations45 731 97 10ms 6 Jan 2025 546th emgordon154 730 29 127ms 11 Sep 2025 547th SirBogman 🇺🇸 730 49 33ms 9 Jan 2025 548th SirBogman 🇺🇸 728 115 60ms 16 Jan 2025 549th edsrzf 🇳🇿 727 99 96ms 13 Jun 2025 550th JOrE20 🇺🇸 727 120 9ms 7 Nov 2025 551st sean-niemann 🇺🇸 726 98 442ms 24 Jan 2025 552nd Kacarott 🇦🇺 725 91 72ms 6 Jan 2025 553rd MostParsingVex 724 92 4ms 7 Jan 2025 553rd Lv0Sys 🇵🇱 724 92 4ms 15 days ago 555th Shanethegamer 🇺🇸 723 98 3ms 6 Jan 2025 556th CarsonChr 🇺🇸 721 121 9ms 5 Jan 2025 556th didion0 🇺🇸 721 121 9ms 24 Feb 2025 556th SebassNoob 721 121 9ms 8 Aug 2025 559th frankgraziano 721 128 6ms 23 Aug 2025 560th CLOStrophobic 🇮🇹 717 144 136ms 28 May 2025 First Prev 481–560 of 974 Next Last