The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Fibonacci in all languages in bytes. 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 Bytes Time Submitted 523rd jared-hughes 961 43 1ms 15 Feb 2022 523rd 060664-swcsd 961 43 1ms 9 Mar 2022 523rd vincens2005 🇺🇸 961 43 1ms 29 Mar 2022 523rd Mortis66666 961 43 1ms 27 May 2022 523rd MichalMarsalek 🇨🇿 961 43 1ms 18 Aug 2022 523rd 5quiwyrm 961 43 1ms 30 Aug 2022 523rd Steffan153 🇫🇮 961 43 1ms 1 Oct 2022 523rd clockworknazo 961 43 1ms 16 Oct 2022 523rd qwertyuiop3 🇷🇺 961 43 1ms 20 Oct 2022 523rd aDwarfNamedUrist 961 43 1ms 10 Nov 2022 523rd DialFrost 🇸🇬 961 43 1ms 1 Dec 2022 523rd thatbirdguythatuknownot 961 43 1ms 20 Dec 2022 523rd b10011 🇫🇮 961 43 1ms 28 Dec 2022 523rd cefqrn 961 43 2ms 31 Dec 2022 523rd MCausc78 🇺🇦 961 43 1ms 5 Jan 2023 523rd sean-niemann 🇺🇸 961 43 1ms 6 Jan 2023 523rd CheeseCake628 🇳🇴 961 43 2ms 14 Feb 2023 523rd scpchicken 🇵🇼 961 43 1ms 6 Mar 2023 523rd KingSkyrock 🇺🇸 961 43 1ms 22 Mar 2023 523rd mtirado1 961 43 1ms 17 Apr 2023 523rd Sciman101 961 43 1ms 16 May 2023 523rd Yewzir 🇧🇪 961 43 1ms 29 May 2023 523rd ToE42 961 43 1ms 14 Jul 2023 523rd adriweb 🇫🇷 961 43 1ms 8 Aug 2023 523rd ovs-code 🇩🇪 961 43 1ms 16 Aug 2023 523rd jipsong 🇩🇪 961 43 1ms 25 Aug 2023 523rd jacobly0 🇺🇸 961 43 1ms 4 Sep 2023 523rd snoozingnewt 🇨🇦 961 43 1ms 10 Sep 2023 523rd m-tkach 🇺🇦 961 43 1ms 10 Sep 2023 523rd msbranicky 961 43 2ms 10 Sep 2023 523rd FlyingPenguin223 961 43 1ms 2 Oct 2023 523rd charliegaming 961 43 1ms 3 Oct 2023 523rd xsot 🇸🇬 961 43 1ms 9 Oct 2023 523rd SirBogman 🇺🇸 961 43 1ms 20 Oct 2023 523rd m42km 961 43 1ms 25 Nov 2023 523rd epic-programmer-guy 961 43 1ms 17 Dec 2023 523rd stellartux 961 43 1ms 24 Dec 2023 523rd duckyluuk 🇳🇱 961 43 1ms 22 Feb 2024 523rd BREMAUCY 🇫🇷 961 43 1ms 7 Mar 2024 523rd HumanoidCPU 961 43 1ms 14 Mar 2024 523rd NickTheEASDude 🇺🇸 961 43 1ms 21 Mar 2024 523rd neel11235813 961 43 1ms 26 Mar 2024 523rd Herbert00709 🇵🇱 961 43 1ms 11 Apr 2024 523rd error256 961 43 1ms 9 May 2024 523rd jtaxen 961 43 1ms 4 Jun 2024 523rd lynn 961 43 1ms 23 Jun 2024 523rd dokutan 961 43 1ms 26 Jun 2024 523rd fgrosshans 🇫🇷 961 43 1ms 27 Aug 2024 523rd pardouin 🇫🇷 961 43 1ms 4 Sep 2024 523rd edsrzf 🇳🇿 961 43 1ms 12 Sep 2024 523rd Vexxter9 🇳🇱 961 43 1ms 20 Sep 2024 523rd alemelis 961 43 2ms 26 Sep 2024 523rd CaedenHarper 🇨🇦 961 43 1ms 22 Oct 2024 523rd akritid 961 43 1ms 23 Oct 2024 523rd koipondx86 961 43 1ms 31 Oct 2024 523rd snyderek 🇺🇸 961 43 1ms 20 Jan 2025 523rd desecaw13 961 43 1ms 24 Jan 2025 523rd mishak-sys 961 43 1ms 25 Feb 2025 523rd not-a-pokemon 961 43 2ms 25 Feb 2025 523rd frosster 961 43 1ms 11 Mar 2025 523rd Blendi-Goose 961 43 1ms 15 Mar 2025 523rd kTheLemon 961 43 1ms 16 Mar 2025 523rd MeepMoop 961 43 1ms 9 Apr 2025 523rd SwordF-Official 961 43 1ms 9 Apr 2025 523rd gonengazit 961 43 1ms 9 Apr 2025 523rd fuzzylojik-golf 🇺🇸 961 43 1ms 29 May 2025 523rd ikskuh 961 43 2ms 27 Jun 2025 523rd synt7x 🇺🇸 961 43 1ms 5 Jul 2025 523rd GolfingSuccess 🇬🇷 961 43 1ms 19 Sep 2025 523rd plcc0 961 43 1ms 23 Oct 2025 523rd Babafaba 961 43 1ms 25 Oct 2025 523rd CarterStroik 961 43 1ms 12 Nov 2025 523rd solisolu 961 43 2ms 25 days ago 523rd Andrey2001 961 43 1ms 22 days ago 523rd FortuiteMan 🇫🇷 961 43 1ms 20 days ago 523rd CornerMercury 🇬🇧 961 43 2ms 11 days ago 523rd KasperKivimaeki 🇫🇮 961 43 2ms 10 days ago 523rd aadenboy 🇺🇸 961 43 2ms 41 hours ago 639th Lydxn 🇨🇦 961 69 61ms 1 Jan 2022 639th prplz 🇦🇺 961 69 82ms 1 Jan 2022 First 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