The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
99 Bottles of Beer 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 nchn27 678 349 388ms 4 Apr 2022 642nd fredrik-bakke 🇳🇴 677 173 13ms 2 Oct 2022 643rd dokutan 677 179 118ms 7 Aug 2024 644th yanqui-uxo 677 334 130ms 6 Sep 2018 645th BambooleanLogic 🇸🇪 676 208 9ms 19 Oct 2022 646th RainOrigami 🇩🇪 676 257 391ms 18 Dec 2021 647th crizin 🇰🇷 676 350 402ms 8 Sep 2023 648th lamba09 676 390 266ms 20 Aug 2020 649th Johannesd3 675 282 4ms 9 Apr 2021 650th jdkleuver 675 335 134ms 8 Aug 2022 650th Xzyaihni 675 335 132ms 1 May 2023 652nd jalone87 675 339 117ms 24 Jan 2020 653rd theentropic 674 258 378ms 21 Nov 2021 654th bob-th 673 174 13ms 26 Jun 2022 654th Starwort 🇬🇧 673 174 10ms 4 Dec 2022 656th lukasneukom 🇨🇭 673 340 99ms 9 Dec 2022 657th sultan 672 283 4ms 4 May 2021 658th DialFrost 🇸🇬 671 176 35ms 8 Jan 2023 659th bryanmytko 670 210 9ms 9 May 2018 660th fischfood 670 284 4ms 8 Aug 2024 661st Leftykap 670 353 394ms 24 Aug 2022 662nd gallium-gonzollium 669 175 10ms 25 Aug 2024 663rd 386asm 🇺🇸 669 246 40ms 29 Apr 2023 664th Yewzir 🇧🇪 669 290 82ms 4 Aug 2023 665th nicholas-vella 669 342 94ms 26 Jan 2020 666th lynn 668 241 2ms 28 Sep 2021 667th dbrowndan 668 285 5ms 18 Sep 2020 668th SirBogman 🇺🇸 667 126 4ms 15 Feb 2020 669th itsh01 667 211 9ms 16 Mar 2022 669th helbling 🇨🇭 667 211 9ms 22 Feb 2024 671st ffelixm 667 320 105ms 29 May 2025 672nd Joe0 667 355 391ms 22 Apr 2020 673rd Wanderkind 🇰🇷 667 376 31ms 9 Jan 2023 674th SmartK8 🇨🇿 666 261 400ms 30 Oct 2022 675th MeWhenI 🇻🇦 665 242 2ms 26 May 2023 676th Irratix 🇳🇱 665 340 132ms 19 Nov 2021 676th xmamalou 🇬🇷 665 340 136ms 17 Sep 2023 678th MahlerFive 🇨🇦 665 396 274ms 19 Apr 2020 679th crazyo 663 212 8ms 14 Apr 2020 680th Yewzir 🇧🇪 663 220 6ms 4 Apr 2024 681st emgordon154 663 280 506ms 31 May 2025 682nd XanderLem 663 357 392ms 3 Aug 2021 683rd timvermeulen 663 368 147ms 4 Jan 2020 684th CatsAreFluffy 661 177 10ms 18 Dec 2022 684th PixelSoftwareStudios 🇺🇸 661 177 9ms 15 Jun 2024 684th wh3n3v3r 🇨🇿 661 177 10ms 8 Nov 2024 687th ravnskjaer 🇩🇰 661 358 365ms 4 days ago 688th Posandu 660 213 9ms 26 Dec 2022 688th tayloia 🇬🇧 660 213 9ms 12 Jan 2023 690th janbehrens 🇩🇪 660 281 479ms 24 Mar 2022 691st wilihybrid 🇫🇮 660 294 76ms 6 Jan 2022 692nd GrayJoKing 🇦🇺 659 260 2ms 13 Sep 2022 693rd msbranicky 659 347 93ms 15 Sep 2023 694th sharkree 659 359 389ms 31 Oct 2022 695th msbranicky 659 398 25ms 4 Jan 2024 696th MeWhenI 🇻🇦 659 401 53ms 3 Jul 2023 697th Babafaba 658 171 418ms 3 Nov 2025 698th jatloe 658 178 11ms 28 Jan 2024 698th megargayu 658 178 15ms 14 Aug 2025 700th ybrodala 658 289 5ms 24 Aug 2021 700th marsdeat 658 289 4ms 30 Aug 2021 702nd SirBogman 🇺🇸 658 585 15ms 23 Nov 2022 703rd Yewzir 🇧🇪 657 329 5ms 14 May 2023 704th KatieLG 🇬🇧 657 348 94ms 15 Jan 2023 705th bwat2 657 360 381ms 21 Apr 2022 705th deancureton 657 360 456ms 24 Mar 2024 707th amaebel 🇩🇪 655 373 130ms 8 Dec 2021 708th Re-Adventures 🇮🇳 654 179 9ms 20 Oct 2020 708th HumanoidCPU 654 179 11ms 13 May 2024 710th gnlow 🇰🇷 654 215 9ms 18 Feb 2021 711th iznax 654 266 365ms 21 Nov 2021 712th ldoodle 654 362 390ms 12 Feb 2021 713th Laksen 🇩🇰 654 401 25ms 9 Jul 2021 714th dokutan 653 233 40ms 4 Oct 2024 715th GrayJoKing 🇦🇺 653 274 357ms 16 Jun 2022 716th janbehrens 🇩🇪 653 291 925ms 10 May 2023 717th gbxdl 652 347 162ms 20 Mar 2021 718th igmcdowell 651 216 8ms 22 Nov 2021 718th uttumuttu 🇫🇮 651 216 9ms 7 Mar 2022 718th Ephellon 651 216 9ms 16 Dec 2023 First Prev 641–720 of 3,831 Next Last