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 832nd martin-viggiano 953 79 255ms 22 Jun 2022 832nd hajimehoshi 🇯🇵 953 79 259ms 24 Sep 2022 832nd Steffan153 🇫🇮 953 79 258ms 1 Oct 2022 832nd kimbo 🇺🇸 953 79 276ms 27 Dec 2022 832nd m-tkach 🇺🇦 953 79 252ms 14 Jun 2023 832nd sean-niemann 🇺🇸 953 79 290ms 27 Jun 2023 832nd ovs-code 🇩🇪 953 79 260ms 16 Aug 2023 832nd snoozingnewt 🇨🇦 953 79 258ms 23 Sep 2023 832nd Yewzir 🇧🇪 953 79 263ms 21 Oct 2023 832nd elgan65536 953 79 256ms 23 Oct 2023 832nd Betuaredead 953 79 258ms 12 Nov 2023 832nd DialFrost 🇸🇬 953 79 274ms 16 Dec 2023 832nd kkoenig 953 79 258ms 22 Dec 2023 832nd harshit54 953 79 264ms 6 Jan 2024 832nd bzijlema 🇳🇱 953 79 258ms 26 Jan 2024 832nd bastatom 953 79 249ms 16 Feb 2024 832nd neel11235813 953 79 264ms 26 Mar 2024 832nd Grrisly 953 79 275ms 27 Mar 2024 832nd jipsong 🇩🇪 953 79 274ms 13 Jun 2024 832nd dbut2 🇦🇺 953 79 263ms 16 Jul 2024 832nd edsrzf 🇳🇿 953 79 260ms 2 Sep 2024 832nd pardouin 🇫🇷 953 79 270ms 4 Sep 2024 832nd duckyluuk 🇳🇱 953 79 259ms 19 Sep 2024 832nd b-illy 🇬🇧 953 79 265ms 29 Sep 2024 832nd CaedenHarper 🇨🇦 953 79 285ms 22 Oct 2024 832nd emgordon154 953 79 254ms 11 Nov 2024 832nd error256 953 79 309ms 16 Dec 2024 832nd martindotexe 🇳🇴 953 79 266ms 22 Apr 2025 832nd fuzzylojik-golf 🇺🇸 953 79 262ms 29 May 2025 832nd 0xjac 🇨🇭 953 79 259ms 7 Jun 2025 832nd targrik 953 79 263ms 29 Jun 2025 832nd FlorianCassayre 🇫🇷 953 79 278ms 16 Jul 2025 832nd jessesomerville 953 79 259ms 20 Jul 2025 832nd GolfingSuccess 🇬🇷 953 79 279ms 22 Aug 2025 832nd KasperKivimaeki 🇫🇮 953 79 245ms 25 Sep 2025 832nd albanian-laundromat 953 79 263ms 2 Oct 2025 832nd cefqrn 953 79 261ms 9 Nov 2025 832nd solisolu 953 79 270ms 19 Nov 2025 832nd Andrey2001 953 79 258ms 23 days ago 832nd CornerMercury 🇬🇧 953 79 300ms 11 days ago 921st rambox11 952 34 9ms 25 Mar 2018 921st frobinsonj 952 34 8ms 28 Jun 2018 921st squadb3 952 34 8ms 11 Oct 2019 921st andersk 🇺🇸 952 34 9ms 21 Mar 2020 921st jwalaszek 952 34 9ms 15 May 2020 921st cywong-amino 🇭🇰 952 34 8ms 3 Jul 2020 921st daisy-lau 952 34 8ms 6 Jul 2020 921st guliyevemil1 🇦🇿 952 34 8ms 3 Feb 2021 921st Darrennchan8 952 34 8ms 23 Aug 2021 921st didion0 🇺🇸 952 34 8ms 14 Feb 2022 921st eranws 952 34 9ms 28 Oct 2022 921st Nicronmil 952 34 8ms 22 Nov 2022 921st DayDun 🇸🇪 952 34 8ms 23 Jan 2023 921st scpchicken 🇵🇼 952 34 9ms 4 Feb 2023 921st kkoenig 952 34 9ms 8 Jan 2024 921st Kacarott 🇦🇺 952 34 9ms 6 Jun 2024 921st targrik 952 34 8ms 5 Feb 2025 938th primo-ppcg 🇹🇭 950 28 13ms 31 Jan 2022 938th HPWiz 🇳🇿 950 28 13ms 20 Feb 2022 938th Sakisan 🇧🇪 950 28 14ms 11 Jul 2022 941st sisyphus-ppcg 🇦🇺 948 33 2ms 30 Oct 2022 941st Lydxn 🇨🇦 948 33 1ms 18 Jan 2025 943rd Lydxn 🇨🇦 948 34 345ms 20 Jan 2024 943rd JayXon 🇺🇸 948 34 347ms 25 Jan 2024 943rd GolfingSuccess 🇬🇷 948 34 352ms 31 Aug 2025 946th sisyphus-ppcg 🇦🇺 947 38 114ms 29 May 2021 946th Lydxn 🇨🇦 947 38 119ms 4 Nov 2021 948th JayXon 🇺🇸 947 45 75ms 11 Oct 2022 948th stefangimmillaro 947 45 76ms 7 May 2023 950th edsrzf 🇳🇿 947 58 409ms 24 Sep 2025 950th CaedenHarper 🇨🇦 947 58 454ms 24 Sep 2025 950th error256 947 58 498ms 24 Sep 2025 950th Shanethegamer 🇺🇸 947 58 434ms 25 Sep 2025 950th FlyingPenguin223 947 58 424ms 25 Sep 2025 950th emgordon154 947 58 432ms 25 Sep 2025 950th duckyluuk 🇳🇱 947 58 406ms 25 Sep 2025 950th m-tkach 🇺🇦 947 58 387ms 25 Sep 2025 950th voytxt 🇨🇿 947 58 367ms 25 Sep 2025 950th Yewzir 🇧🇪 947 58 452ms 2 Oct 2025 950th Andrey2001 947 58 497ms 24 days ago First Prev 881–960 of 9,573 Next Last