The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Foo Fizz Buzz Bar 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 880th prestosilver 🇺🇸 823 117 3ms 27 days ago 882nd MeWhenI 🇻🇦 823 153 263ms 9 Feb 2023 883rd Codsilla 🇨🇦 822 83 297ms 24 Mar 2023 884th GrayJoKing 🇦🇺 822 91 4ms 20 Aug 2023 884th kg583 🇺🇸 822 91 5ms 10 Nov 2025 886th SirBogman 🇺🇸 822 114 101ms 14 Oct 2022 887th austbestos 🇮🇪 822 115 122ms 6 Feb 2022 887th jared-hughes 822 115 133ms 6 Jun 2023 887th cbrt-x 822 115 132ms 18 Sep 2023 890th oceko 821 145 66ms 19 Feb 2024 890th BlankSpruce 821 145 69ms 22 Aug 2024 892nd MeWhenI 🇻🇦 821 262 22ms 19 Jul 2025 893rd GrayJoKing 🇦🇺 820 85 104ms 31 May 2022 894th jared-hughes 820 123 3ms 6 Mar 2022 894th Waffle3z 820 123 2ms 8 Apr 2022 894th TheDrawingCoder-Gamer 820 123 2ms 2 Jul 2025 897th Shanethegamer 🇺🇸 819 92 1,202ms 22 Nov 2021 898th aliakseikalosha 819 112 391ms 22 Oct 2024 899th lynn 819 147 160ms 7 Jul 2024 900th SpareManiKatti 818 94 9ms 19 Apr 2022 900th HenryTy83 818 94 9ms 4 Dec 2022 900th ShiraJoseph 🇺🇸 818 94 9ms 25 Mar 2023 900th JeanmarieJackman 818 94 9ms 17 Oct 2023 900th dewmguy 818 94 10ms 12 Jun 2024 900th MyXoToD 🇩🇪 818 94 10ms 1 Jul 2024 900th codingisgreatbutiamnot 818 94 10ms 29 Jul 2024 907th Yewzir 🇧🇪 818 95 11ms 9 Jan 2025 907th GrayJoKing 🇦🇺 818 95 11ms 27 days ago 909th MeWhenI 🇻🇦 818 109 121ms 15 Nov 2022 909th jared-hughes 818 109 120ms 22 Jan 2023 909th prplz 🇦🇺 818 109 119ms 12 Jun 2023 912th stefangimmillaro 818 110 40ms 26 Apr 2025 913th GrayJoKing 🇦🇺 818 136 30ms 17 Jan 2023 914th GolfingSuccess 🇬🇷 818 201 475ms 18 Jan 2025 914th ovs-code 🇩🇪 818 201 466ms 24 Jan 2025 916th snoozingnewt 🇨🇦 817 80 291ms 12 Sep 2023 917th stefangimmillaro 817 118 90ms 1 May 2024 918th KrausRaus 🇺🇸 816 116 2ms 6 Oct 2022 919th GolfingSuccess 🇬🇷 816 118 2ms 22 Nov 2021 919th jared-hughes 816 118 3ms 25 Mar 2022 919th Attero 🇸🇪 816 118 2ms 1 Aug 2022 922nd GrayJoKing 🇦🇺 815 78 24ms 21 Nov 2021 922nd sisyphus-ppcg 🇦🇺 815 78 14ms 30 Nov 2021 922nd andersk 🇺🇸 815 78 22ms 25 Oct 2022 922nd Steffan153 🇫🇮 815 78 14ms 3 Aug 2024 922nd DialFrost 🇸🇬 815 78 16ms 11 Jan 2025 927th dranjohn 815 146 404ms 16 Sep 2023 927th luuumine 🇫🇷 815 146 87ms 7 Nov 2025 929th SirBogman 🇺🇸 814 148 125ms 4 Oct 2023 929th stefangimmillaro 814 148 129ms 19 Oct 2023 929th emgordon154 814 148 176ms 26 Feb 2025 932nd maddieChinarro 814 152 476ms 3 Oct 2025 933rd KatieLG 🇬🇧 814 159 3ms 10 Dec 2022 934th Stockoh 🇫🇷 813 80 11ms 26 Apr 2024 935th tomh1012 812 113 390ms 20 days ago 936th albanian-laundromat 811 86 107ms 20 Nov 2025 937th jgrove2 809 95 10ms 12 Aug 2022 937th Smetalo 809 95 9ms 25 Aug 2022 937th PowershellKnut 🇳🇴 809 95 10ms 2 Jan 2023 937th lolmanQ 809 95 9ms 28 Feb 2023 937th TheRealOhead 🇺🇸 809 95 10ms 2 Apr 2023 937th HarryAllen1 809 95 9ms 15 May 2023 937th deniz-blue 809 95 10ms 21 Oct 2023 937th realhackcraft 809 95 10ms 4 Dec 2023 937th blaztoma 🇱🇹 809 95 10ms 17 Aug 2025 946th SirBogman 🇺🇸 809 117 2ms 9 Sep 2022 946th dokutan 809 117 2ms 26 Jul 2024 948th nyoshe 809 119 2ms 19 Sep 2023 948th solisolu 809 119 3ms 15 Nov 2025 950th forthuser 809 141 3ms 22 Jul 2023 951st DialFrost 🇸🇬 808 76 38ms 27 Jan 2023 952nd emplv 🇱🇻 808 116 98ms 6 Dec 2022 952nd dokutan 808 116 99ms 17 Oct 2024 954th itCarl 🇩🇪 807 99 7ms 16 Jan 2022 954th PowershellKnut 🇳🇴 807 99 5ms 2 Jan 2023 956th FlyingPenguin223 807 125 2ms 30 Oct 2024 957th dokutan 806 95 2ms 16 Mar 2024 958th SirBogman 🇺🇸 805 93 5ms 4 Oct 2023 959th Yewzir 🇧🇪 805 129 466ms 5 Feb 2024 960th yeminghan2021 804 148 79ms 1 Feb 2025 First Prev 881–960 of 3,377 Next Last