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 641st snoozingnewt 🇨🇦 865 143 801ms 16 Oct 2025 642nd dokutan 864 85 698ms 30 Aug 2025 643rd voidcoefficient 864 89 10ms 23 Nov 2021 643rd inventshah 864 89 10ms 25 Nov 2021 643rd TechNolaByte 864 89 10ms 26 Nov 2021 643rd sleepyStick 864 89 10ms 4 Dec 2021 643rd Giga-Bowser 864 89 9ms 6 Dec 2021 643rd tristan-f-r 864 89 9ms 16 Dec 2021 643rd tomisaacmarshall 864 89 9ms 26 Dec 2021 643rd rbrdl 864 89 9ms 29 Dec 2021 643rd ershadi-sayuri 864 89 10ms 13 Jan 2022 643rd fitzdotlol 🇺🇸 864 89 10ms 18 Feb 2022 643rd teofum 864 89 10ms 8 Mar 2022 643rd sultan 864 89 10ms 13 Apr 2022 643rd jb-lopez 🇺🇸 864 89 9ms 19 Apr 2022 643rd ArekX 864 89 9ms 11 May 2022 643rd jshji252 864 89 10ms 19 May 2022 643rd solmyr2000 864 89 9ms 8 Jun 2022 643rd maxpelic 🇺🇸 864 89 9ms 5 Jul 2022 643rd vroup 🇩🇰 864 89 9ms 29 Sep 2022 643rd CatsAreFluffy 864 89 9ms 22 Nov 2022 643rd Nicronmil 864 89 10ms 24 Nov 2022 643rd YPuest 864 89 9ms 20 Dec 2022 643rd varhammer 🇷🇺 864 89 10ms 2 Jan 2023 643rd aksyristos 864 89 9ms 2 Jan 2023 643rd amiralitaheri 864 89 9ms 14 Feb 2023 643rd Isaac-NTT 864 89 9ms 23 Jun 2023 643rd ollyspooner 864 89 9ms 27 Jul 2023 643rd daniel-cardone 864 89 11ms 23 Aug 2023 643rd Kamikadze4GAME 864 89 9ms 21 Sep 2023 643rd guiohm 864 89 9ms 22 Oct 2023 643rd derekthatcher 864 89 9ms 29 Nov 2023 643rd Just4FunCoder 864 89 10ms 6 Dec 2023 643rd Michiocre 864 89 10ms 20 Feb 2024 643rd ggtylerr 864 89 9ms 18 Jun 2024 643rd harcma 864 89 10ms 30 Jun 2024 643rd Andrey-Plotnikov 864 89 9ms 23 Oct 2024 643rd lifthrasiir 🇰🇷 864 89 10ms 15 Nov 2024 643rd eTrey13 864 89 9ms 3 Feb 2025 643rd malworthy 864 89 10ms 7 Mar 2025 643rd smclaughlin-cf 864 89 9ms 20 Mar 2025 643rd jake6192 864 89 9ms 16 May 2025 643rd cloudyshoe 864 89 9ms 23 May 2025 643rd acollett89 864 89 10ms 3 Jun 2025 643rd 4very 864 89 9ms 7 Jun 2025 643rd iczelia 🇩🇪 864 89 9ms 20 Oct 2025 687th SirFireball3521 863 57 244ms 16 Mar 2023 688th sean-niemann 🇺🇸 863 79 450ms 12 Mar 2025 689th edsrzf 🇳🇿 863 116 43ms 6 Feb 2025 690th tailorspy 863 138 87ms 18 Sep 2024 691st SirBogman 🇺🇸 862 55 2ms 15 Dec 2023 691st emgordon154 862 55 3ms 3 Nov 2024 693rd frosster 862 117 3ms 25 Mar 2025 694th Shanethegamer 🇺🇸 861 81 91ms 25 Mar 2023 695th swbbl 860 76 241ms 5 Feb 2022 695th thed1n 860 76 247ms 9 Jun 2022 695th ehmiiz 🇸🇪 860 76 276ms 21 Jun 2022 695th markroloff 860 76 253ms 24 Jul 2022 695th Clebam 🇫🇷 860 76 260ms 26 Jul 2022 695th KevinLaux 860 76 270ms 2 Nov 2022 695th Tadas 860 76 284ms 23 Feb 2024 695th MarkE0 860 76 257ms 30 Apr 2024 703rd SirBogman 🇺🇸 860 110 134ms 4 Oct 2023 704th Alex-x90 🇺🇸 860 112 2ms 19 May 2023 704th JohandeRuiter 🇳🇱 860 112 2ms 27 Nov 2023 704th Bmrl7 860 112 3ms 27 Dec 2023 704th byronknoll 🇺🇸 860 112 2ms 21 Jan 2024 708th YPuest 859 93 6ms 15 Feb 2023 708th rus13th 859 93 5ms 4 Oct 2024 710th MeWhenI 🇻🇦 858 47 47ms 28 Jul 2022 710th fuzzylojik-golf 🇺🇸 858 47 71ms 31 Aug 2025 712th Shanethegamer 🇺🇸 858 121 460ms 13 Dec 2022 713th Lydxn 🇨🇦 857 107 407ms 28 Apr 2022 713th Steffan153 🇫🇮 857 107 355ms 12 Feb 2023 713th feberhard 857 107 391ms 7 Apr 2023 713th sean-niemann 🇺🇸 857 107 395ms 20 Jun 2025 717th AlephSquirrel 857 133 4ms 2 Aug 2024 718th jared-hughes 856 139 501ms 24 Jun 2022 718th tim-trimble 856 139 73ms 4 Aug 2022 718th ZachClayburn 856 139 79ms 4 Aug 2022 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