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 721st Lydxn 🇨🇦 958 64 4,004ms 13 Jan 2022 721st JayXon 🇺🇸 958 64 127ms 14 Jan 2022 721st kumavale 958 64 122ms 14 Jan 2022 721st frozolotl 958 64 122ms 19 Jan 2022 721st lyphyser 958 64 122ms 21 Jul 2023 721st lynn 958 64 122ms 7 Jul 2024 721st acotis 958 64 120ms 23 Jan 2025 721st DialFrost 🇸🇬 958 64 123ms 4 Apr 2025 721st edsrzf 🇳🇿 958 64 115ms 5 Apr 2025 721st pardouin 🇫🇷 958 64 123ms 17 Apr 2025 721st error256 958 64 123ms 17 Apr 2025 721st emgordon154 958 64 122ms 18 Apr 2025 721st ovs-code 🇩🇪 958 64 125ms 20 Apr 2025 721st plcc0 958 64 120ms 21 Apr 2025 721st sean-niemann 🇺🇸 958 64 125ms 4 Jun 2025 721st Shanethegamer 🇺🇸 958 64 119ms 13 Jun 2025 721st sisyphus-ppcg 🇦🇺 958 64 4,148ms 18 Oct 2025 721st brie-r 958 64 115ms 21 days ago 721st ian-h-chamberlain 🇺🇸 958 64 133ms 118 mins ago 740th sisyphus-ppcg 🇦🇺 953 28 81ms 14 Dec 2022 740th Lydxn 🇨🇦 953 28 92ms 15 Dec 2022 740th DialFrost 🇸🇬 953 28 88ms 5 Jul 2025 740th ovs-code 🇩🇪 953 28 77ms 7 days ago 744th prplz 🇦🇺 953 47 2ms 9 Mar 2019 744th filharmonista 953 47 1ms 13 Mar 2020 744th Attero 🇸🇪 953 47 1ms 14 May 2020 744th nwellnhof 🇩🇪 953 47 1ms 4 Oct 2020 744th primo-ppcg 🇹🇭 953 47 1ms 5 Oct 2020 744th alexdreptate 953 47 2ms 9 Oct 2020 744th paulcirstean-yonder 🇷🇴 953 47 1ms 10 Oct 2020 744th urojony 🇵🇱 953 47 1ms 28 Dec 2020 744th GrayJoKing 🇦🇺 953 47 2ms 9 Jan 2021 744th mihaits 953 47 2ms 29 Jan 2021 744th NewDefectus 🇮🇱 953 47 2ms 1 Feb 2021 744th MatheusAvellar 🇧🇷 953 47 1ms 7 May 2021 744th inventshah 953 47 1ms 8 May 2021 744th pandapawskat 953 47 4ms 1 Sep 2021 744th Irratix 🇳🇱 953 47 1ms 1 Sep 2021 744th lynn 953 47 2ms 2 Oct 2021 744th vang1ong7ang 953 47 1ms 26 Oct 2021 744th janbehrens 🇩🇪 953 47 1ms 26 Oct 2021 744th m-tkach 🇺🇦 953 47 1ms 2 Dec 2021 744th SirBogman 🇺🇸 953 47 1ms 14 Dec 2021 744th sean-niemann 🇺🇸 953 47 2ms 5 Jan 2022 744th btnlq 953 47 1ms 5 Jan 2022 744th jared-hughes 953 47 1ms 4 Mar 2022 744th shellbertt 🇨🇦 953 47 2ms 7 Apr 2022 744th saito-ta 🇯🇵 953 47 1ms 21 Jun 2022 744th Shanethegamer 🇺🇸 953 47 1ms 11 Jul 2022 744th AlephSquirrel 953 47 1ms 16 Jul 2022 744th ZakkkkAttackkkk 🇵🇭 953 47 2ms 26 Jul 2022 744th Steffan153 🇫🇮 953 47 1ms 1 Oct 2022 744th FlorianCassayre 🇫🇷 953 47 2ms 8 Oct 2022 744th ValentinCassayre 953 47 1ms 8 Oct 2022 744th Alex-x90 🇺🇸 953 47 2ms 17 Oct 2022 744th MeWhenI 🇻🇦 953 47 2ms 17 Oct 2022 744th stefangimmillaro 953 47 2ms 17 Oct 2022 744th qwertyuiop3 🇷🇺 953 47 2ms 20 Oct 2022 744th madex 🇩🇪 953 47 2ms 10 Nov 2022 744th Seek64 🇩🇪 953 47 1ms 11 Nov 2022 744th mathb0y512 953 47 2ms 1 Jan 2023 744th Betuaredead 953 47 1ms 4 Jan 2023 744th Yewzir 🇧🇪 953 47 2ms 5 Feb 2023 744th User2654 953 47 1ms 10 Feb 2023 744th KenanHanke 953 47 1ms 20 Feb 2023 744th 386asm 🇺🇸 953 47 1ms 27 Apr 2023 744th klixel 🇨🇦 953 47 1ms 9 May 2023 744th Jonatan6 🇩🇰 953 47 1ms 28 May 2023 744th Bmrl7 953 47 1ms 4 Aug 2023 744th 09cf 953 47 1ms 20 Sep 2023 744th snoozingnewt 🇨🇦 953 47 1ms 23 Sep 2023 744th JohandeRuiter 🇳🇱 953 47 2ms 15 Oct 2023 744th fuzzylojik-golf 🇺🇸 953 47 1ms 21 Oct 2023 744th FlyingPenguin223 953 47 1ms 28 Oct 2023 744th GolfingSuccess 🇬🇷 953 47 2ms 3 Nov 2023 744th speles 🇺🇦 953 47 1ms 6 Nov 2023 744th namelessiw 953 47 1ms 7 Nov 2023 744th roupiq 🇵🇱 953 47 1ms 23 Nov 2023 744th emplv 🇱🇻 953 47 2ms 11 Dec 2023 744th drabart 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