The Calendar hole will go live in approximately 21 hours. 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 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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 Shanethegamer 🇺🇸 841 106 123ms 25 Mar 2023 802nd GolfingSuccess 🇬🇷 840 48 56ms 20 Nov 2025 803rd rvdnieuwendijk 🇳🇱 838 78 210ms 27 Nov 2021 804th KatieLG 🇬🇧 838 115 87ms 14 Jan 2023 805th NewDefectus 🇮🇱 837 115 3ms 22 Nov 2021 805th ZachClayburn 837 115 3ms 4 Aug 2022 805th tim-trimble 837 115 2ms 4 Aug 2022 808th MeWhenI 🇻🇦 837 124 452ms 10 Oct 2022 809th Shanethegamer 🇺🇸 837 197 431ms 24 Apr 2025 810th zaneshaw 836 92 9ms 27 Apr 2022 810th GeorgeStechman 🇬🇧 836 92 9ms 14 May 2022 810th Heathcorp 🇦🇺 836 92 10ms 9 Jul 2022 810th zlpeak 836 92 10ms 26 Jul 2022 810th 7f-galaxii 836 92 9ms 6 Dec 2022 810th NoUselessTech 836 92 10ms 11 Dec 2022 810th A11yship 836 92 9ms 31 Oct 2023 810th lewdev 🇺🇸 836 92 11ms 28 Nov 2023 810th r-schmidtke 836 92 9ms 25 Apr 2024 810th johnkiernander 836 92 9ms 15 days ago 820th MeWhenI 🇻🇦 836 99 13ms 9 May 2024 821st Isaac-Metthez 834 78 11ms 19 Dec 2023 821st yokasuretsu 834 78 11ms 9 Jan 2025 821st JOrE20 🇺🇸 834 78 17ms 23 Nov 2025 824th GrayJoKing 🇦🇺 834 110 372ms 21 Nov 2021 824th primo-ppcg 🇹🇭 834 110 346ms 22 Nov 2021 824th ScottHamper 834 110 345ms 17 Dec 2021 824th billings7 🇬🇧 834 110 375ms 16 Apr 2022 824th Matgc04 834 110 391ms 19 May 2023 824th BREMAUCY 🇫🇷 834 110 386ms 30 Jun 2023 824th SirBogman 🇺🇸 834 110 346ms 20 Oct 2023 824th namelessiw 834 110 382ms 4 May 2024 824th pardouin 🇫🇷 834 110 362ms 17 Aug 2024 824th juliansiebert 🇩🇪 834 110 338ms 2 Mar 2025 824th Pecanolith 834 110 398ms 23 Apr 2025 824th Adix-null 🇱🇹 834 110 386ms 9 Nov 2025 836th SirBogman 🇺🇸 833 107 120ms 15 Dec 2021 837th dokutan 833 121 3ms 29 Mar 2025 837th SwordF-Official 833 121 3ms 1 Jun 2025 839th primo-ppcg 🇹🇭 833 258 224ms 30 Aug 2023 840th ArekX 832 96 5ms 11 May 2022 841st Shanethegamer 🇺🇸 832 143 57ms 14 Sep 2022 842nd MeWhenI 🇻🇦 831 57 3ms 12 Jan 2022 842nd aksyristos 831 57 3ms 22 Oct 2022 842nd Steffan153 🇫🇮 831 57 2ms 26 Feb 2023 842nd Yewzir 🇧🇪 831 57 2ms 10 Dec 2023 842nd DialFrost 🇸🇬 831 57 2ms 3 Feb 2024 842nd GolfinK 831 57 2ms 22 Nov 2024 842nd lifthrasiir 🇰🇷 831 57 2ms 29 Nov 2024 849th SirBogman 🇺🇸 830 134 24ms 4 Oct 2023 850th Yewzir 🇧🇪 830 218 2,950ms 15 Nov 2025 851st KrausRaus 🇺🇸 829 113 99ms 17 Oct 2022 851st Yewzir 🇧🇪 829 113 97ms 3 Feb 2024 853rd SirBogman 🇺🇸 828 91 1,038ms 20 Oct 2023 854th tonsofpcs 828 130 39ms 18 Sep 2025 855th cefqrn 828 199 464ms 20 Jan 2025 856th HCRitter 🇩🇪 827 79 234ms 1 Nov 2023 856th janbehrens 🇩🇪 827 79 223ms 28 Nov 2023 856th Yewzir 🇧🇪 827 79 230ms 9 Apr 2024 856th 5quiwyrm 827 79 260ms 4 Dec 2024 860th JosephAbbey 827 93 10ms 6 Apr 2022 860th nakatchi 827 93 10ms 16 Feb 2024 860th timothytomato 827 93 10ms 1 Jun 2025 863rd Kloppermand 🇩🇰 827 111 387ms 29 Nov 2021 863rd memiamp 🇬🇧 827 111 388ms 14 Oct 2022 865th gjoacorp 🇬🇧 827 144 62ms 3 Aug 2025 866th nwellnhof 🇩🇪 827 149 8ms 22 Oct 2022 867th DialFrost 🇸🇬 826 96 7ms 19 Mar 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 83ms 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 57ms 11 Nov 2025 879th SirBogman 🇺🇸 823 93 3ms 9 Oct 2023 880th billythekid 823 97 6ms 6 Jun 2025 First Prev 801–880 of 3,380 Next Last