The Calendar hole will go live in approximately 5 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 641st Shanethegamer 🇺🇸 642 97 260ms 24 May 2025 642nd MeWhenI 🇻🇦 641 33 66ms 6 Jan 2025 643rd gigaprofisi 🇺🇸 641 129 10ms 7 Aug 2025 644th DialFrost 🇸🇬 639 101 137ms 3 Jan 2025 645th luuumine 🇫🇷 638 103 4ms 18 days ago 646th BambooleanLogic 🇸🇪 636 130 10ms 17 Jul 2025 647th HumanoidCPU 636 132 422ms 8 Nov 2025 648th dokutan 635 120 2ms 5 Feb 2025 649th MostParsingVex 633 159 25ms 6 Jan 2025 650th DialFrost 🇸🇬 632 87 7ms 11 Jan 2025 651st The3gs 632 161 173ms 25 Jan 2025 652nd Ephellon 631 131 9ms 1 Feb 2025 653rd MeWhenI 🇻🇦 629 80 1,062ms 6 Jan 2025 654th HahUK 629 173 262ms 10 Nov 2025 655th BREMAUCY 🇫🇷 629 284 14ms 6 Aug 2025 656th kirjavascript 628 162 168ms 18 Mar 2025 657th CaedenHarper 🇨🇦 627 134 562ms 7 Oct 2025 657th kmathis22 627 134 503ms 31 Oct 2025 659th weliveinhell 🇭🇹 626 132 10ms 26 Jun 2025 660th Shanethegamer 🇺🇸 624 114 428ms 6 Jan 2025 661st Shanethegamer 🇺🇸 624 138 7ms 5 Jan 2025 662nd grey0ut 623 79 287ms 9 Jan 2025 663rd MostParsingVex 623 100 141ms 7 Jan 2025 664th KasperKivimaeki 🇫🇮 623 114 367ms 5 Jan 2025 665th DialFrost 🇸🇬 622 135 448ms 24 Sep 2025 666th prestosilver 🇺🇸 621 136 340ms 8 days ago 667th Mandrzejy 🇵🇱 620 135 422ms 5 Jan 2025 668th the-zammers 619 167 152ms 2 Feb 2025 669th jerrandolph 618 176 270ms 23 Sep 2025 670th LukeBridges 🇬🇧 617 134 9ms 8 Jan 2025 671st szymex73 🇵🇱 614 107 2ms 17 Jan 2025 671st Efgeen 🇸🇪 614 107 4ms 17 Nov 2025 673rd pardouin 🇫🇷 613 161 90ms 25 Apr 2025 674th tayloia 🇬🇧 612 135 10ms 12 Jan 2025 675th edsrzf 🇳🇿 609 178 339ms 2 Mar 2025 676th tatzyr 🇯🇵 608 81 232ms 5 Mar 2025 677th firewoods1978 608 108 1ms 9 Jan 2025 677th Maashau 608 108 5ms 26 days ago 679th KrausRaus 🇺🇸 608 136 10ms 3 Jan 2025 680th bac0id 607 138 426ms 10 Jan 2025 681st Jacob385 604 139 435ms 28 Oct 2025 682nd Protothor 603 137 10ms 11 Jun 2025 683rd emgordon154 603 143 34ms 3 Jan 2025 684th dokutan 603 166 3ms 4 Feb 2025 685th arcpolaris 602 118 410ms 10 Jan 2025 685th snoozingnewt 🇨🇦 602 118 410ms 2 Nov 2025 687th juliansiebert 🇩🇪 601 82 307ms 1 Mar 2025 688th snoozingnewt 🇨🇦 601 181 286ms 2 Nov 2025 689th luuumine 🇫🇷 598 140 63ms 18 days ago 690th MostParsingVex 598 153 15ms 5 Jan 2025 691st Shanethegamer 🇺🇸 597 108 137ms 8 Jan 2025 691st pardouin 🇫🇷 597 108 134ms 29 Jul 2025 693rd Herbert00709 🇵🇱 597 110 5ms 5 Jan 2025 694th dbut2 🇦🇺 595 183 275ms 14 Jan 2025 695th ikskuh 594 139 10ms 27 Jun 2025 695th alexsave 594 139 10ms 7 Oct 2025 697th Maximizer02 594 145 9ms 10 Jan 2025 698th c0d3-4-F00d 🇩🇪 592 111 2ms 9 Jan 2025 698th wansacis 🇩🇪 592 111 2ms 30 Jan 2025 698th prestosilver 🇺🇸 592 111 2ms 18 Nov 2025 701st msbranicky 592 169 5ms 1 Jun 2025 702nd Yewzir 🇧🇪 592 208 2,667ms 14 Nov 2025 703rd emgordon154 591 120 7ms 12 Jan 2025 704th rbobillot 591 345 424ms 13 Jan 2025 705th Jay2k1 590 63 5ms 6 Nov 2025 706th two-bad 🇬🇧 590 140 9ms 22 Feb 2025 707th Yewzir 🇧🇪 590 142 423ms 6 Jan 2025 708th ikskuh 589 209 1,658ms 27 Jun 2025 709th madex 🇩🇪 587 112 2ms 4 Jan 2025 709th Mandrzejy 🇵🇱 587 112 1ms 5 Jan 2025 711th snoozingnewt 🇨🇦 587 143 592ms 2 Nov 2025 712th martindotexe 🇳🇴 585 186 290ms 16 May 2025 713th emgordon154 584 93 3,309ms 2 Aug 2025 714th CheeseCake628 🇳🇴 584 97 13ms 20 May 2025 715th dokutan 584 144 4ms 12 Feb 2025 716th Shanethegamer 🇺🇸 584 177 138ms 3 Jan 2025 716th WatMan77 584 177 132ms 27 May 2025 718th Shanethegamer 🇺🇸 583 143 1,244ms 4 Jan 2025 719th mousetail 🇳🇱 579 59 24ms 6 Feb 2025 720th HumanoidCPU 579 95 7ms 1 Feb 2025 First Prev 641–720 of 967 Next Last