The Calendar hole will go live in approximately 11 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 801st GolfingSuccess 🇬🇷 840 48 53ms 20 Nov 2025 802nd rvdnieuwendijk 🇳🇱 838 78 252ms 27 Nov 2021 803rd KatieLG 🇬🇧 838 115 87ms 14 Jan 2023 804th NewDefectus 🇮🇱 837 115 3ms 22 Nov 2021 804th ZachClayburn 837 115 3ms 4 Aug 2022 804th tim-trimble 837 115 2ms 4 Aug 2022 807th MeWhenI 🇻🇦 837 124 452ms 10 Oct 2022 808th zaneshaw 836 92 9ms 27 Apr 2022 808th GeorgeStechman 🇬🇧 836 92 9ms 14 May 2022 808th Heathcorp 🇦🇺 836 92 10ms 9 Jul 2022 808th zlpeak 836 92 10ms 26 Jul 2022 808th 7f-galaxii 836 92 9ms 6 Dec 2022 808th NoUselessTech 836 92 10ms 11 Dec 2022 808th A11yship 836 92 9ms 31 Oct 2023 808th lewdev 🇺🇸 836 92 11ms 28 Nov 2023 808th r-schmidtke 836 92 9ms 25 Apr 2024 808th johnkiernander 836 92 9ms 5 days ago 818th MeWhenI 🇻🇦 836 99 13ms 9 May 2024 819th Isaac-Metthez 834 78 11ms 19 Dec 2023 819th yokasuretsu 834 78 11ms 9 Jan 2025 819th JOrE20 🇺🇸 834 78 17ms 27 days ago 822nd GrayJoKing 🇦🇺 834 110 372ms 21 Nov 2021 822nd primo-ppcg 🇹🇭 834 110 346ms 22 Nov 2021 822nd ScottHamper 834 110 345ms 17 Dec 2021 822nd billings7 🇬🇧 834 110 375ms 16 Apr 2022 822nd Matgc04 834 110 391ms 19 May 2023 822nd BREMAUCY 🇫🇷 834 110 386ms 30 Jun 2023 822nd SirBogman 🇺🇸 834 110 346ms 20 Oct 2023 822nd namelessiw 834 110 382ms 4 May 2024 822nd pardouin 🇫🇷 834 110 362ms 17 Aug 2024 822nd juliansiebert 🇩🇪 834 110 338ms 2 Mar 2025 822nd Pecanolith 834 110 404ms 23 Apr 2025 822nd Adix-null 🇱🇹 834 110 416ms 9 Nov 2025 834th Shanethegamer 🇺🇸 834 197 431ms 24 Apr 2025 835th SirBogman 🇺🇸 833 107 120ms 15 Dec 2021 836th dokutan 833 121 2ms 29 Mar 2025 836th SwordF-Official 833 121 2ms 1 Jun 2025 838th primo-ppcg 🇹🇭 833 258 224ms 30 Aug 2023 839th ArekX 832 96 6ms 11 May 2022 840th Shanethegamer 🇺🇸 832 143 85ms 14 Sep 2022 841st MeWhenI 🇻🇦 831 57 3ms 12 Jan 2022 841st aksyristos 831 57 3ms 22 Oct 2022 841st Steffan153 🇫🇮 831 57 2ms 26 Feb 2023 841st Yewzir 🇧🇪 831 57 2ms 10 Dec 2023 841st DialFrost 🇸🇬 831 57 2ms 3 Feb 2024 841st GolfinK 831 57 2ms 22 Nov 2024 841st lifthrasiir 🇰🇷 831 57 2ms 29 Nov 2024 848th SirBogman 🇺🇸 830 134 24ms 4 Oct 2023 849th Yewzir 🇧🇪 830 218 2,950ms 15 Nov 2025 850th KrausRaus 🇺🇸 829 113 99ms 17 Oct 2022 850th Yewzir 🇧🇪 829 113 97ms 3 Feb 2024 852nd SirBogman 🇺🇸 828 91 1,038ms 20 Oct 2023 853rd HCRitter 🇩🇪 827 79 277ms 1 Nov 2023 853rd janbehrens 🇩🇪 827 79 272ms 28 Nov 2023 853rd Yewzir 🇧🇪 827 79 251ms 9 Apr 2024 853rd 5quiwyrm 827 79 268ms 4 Dec 2024 857th JosephAbbey 827 93 10ms 6 Apr 2022 857th nakatchi 827 93 10ms 16 Feb 2024 857th timothytomato 827 93 10ms 1 Jun 2025 860th Kloppermand 🇩🇰 827 111 387ms 29 Nov 2021 860th memiamp 🇬🇧 827 111 388ms 14 Oct 2022 862nd resoNathan 827 122 2ms 2 Jul 2024 863rd tonsofpcs 827 130 39ms 18 Sep 2025 864th gjoacorp 🇬🇧 827 144 64ms 3 Aug 2025 865th nwellnhof 🇩🇪 827 149 8ms 22 Oct 2022 866th DialFrost 🇸🇬 826 96 7ms 19 Mar 2025 867th cefqrn 826 199 464ms 20 Jan 2025 868th aibolit 825 89 746ms 6 Jun 2025 869th GrayJoKing 🇦🇺 825 108 117ms 22 Aug 2023 870th Natanaelel 🇸🇪 825 146 177ms 26 Jul 2025 871st Schmitt-Very-Cool 825 150 577ms 26 Sep 2025 872nd mdznr 824 117 98ms 20 Dec 2021 872nd Yewzir 🇧🇪 824 117 95ms 6 Jul 2023 872nd HumanoidCPU 824 117 90ms 15 Mar 2024 875th GrayJoKing 🇦🇺 824 126 389ms 4 Mar 2022 875th aposteriorist 🇨🇦 824 126 483ms 15 Mar 2022 877th MeWhenI 🇻🇦 824 157 3ms 20 Apr 2022 878th ovs-code 🇩🇪 823 49 51ms 11 Nov 2025 879th SirBogman 🇺🇸 823 93 3ms 9 Oct 2023 880th billythekid 823 97 5ms 6 Jun 2025 First Prev 801–880 of 3,377 Next Last