The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Fibonacci 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 799th squadb3 952 34 8ms 11 Oct 2019 799th andersk 🇺🇸 952 34 9ms 21 Mar 2020 799th jwalaszek 952 34 9ms 15 May 2020 799th cywong-amino 🇭🇰 952 34 8ms 3 Jul 2020 799th daisy-lau 952 34 8ms 6 Jul 2020 799th guliyevemil1 🇦🇿 952 34 8ms 3 Feb 2021 799th Darrennchan8 952 34 8ms 23 Aug 2021 799th didion0 🇺🇸 952 34 8ms 14 Feb 2022 799th eranws 952 34 9ms 28 Oct 2022 799th Nicronmil 952 34 8ms 22 Nov 2022 799th DayDun 🇸🇪 952 34 8ms 23 Jan 2023 799th scpchicken 🇵🇼 952 34 9ms 4 Feb 2023 799th kkoenig 952 34 9ms 8 Jan 2024 799th Kacarott 🇦🇺 952 34 9ms 6 Jun 2024 799th targrik 952 34 8ms 5 Feb 2025 816th primo-ppcg 🇹🇭 950 28 13ms 31 Jan 2022 816th HPWiz 🇳🇿 950 28 13ms 20 Feb 2022 816th Sakisan 🇧🇪 950 28 14ms 11 Jul 2022 819th Steffan153 🇫🇮 950 32 355ms 18 Jan 2024 819th Lydxn 🇨🇦 950 32 348ms 20 Jan 2024 819th JayXon 🇺🇸 950 32 350ms 25 Jan 2024 819th sean-niemann 🇺🇸 950 32 367ms 24 Jan 2025 819th GolfingSuccess 🇬🇷 950 32 349ms 31 Aug 2025 824th sisyphus-ppcg 🇦🇺 948 33 2ms 30 Oct 2022 824th Lydxn 🇨🇦 948 33 1ms 18 Jan 2025 826th sisyphus-ppcg 🇦🇺 947 38 114ms 29 May 2021 826th Lydxn 🇨🇦 947 38 119ms 4 Nov 2021 828th JayXon 🇺🇸 947 45 75ms 11 Oct 2022 828th stefangimmillaro 947 45 76ms 7 May 2023 830th edsrzf 🇳🇿 947 58 409ms 24 Sep 2025 830th CaedenHarper 🇨🇦 947 58 454ms 24 Sep 2025 830th error256 947 58 498ms 24 Sep 2025 830th Shanethegamer 🇺🇸 947 58 434ms 25 Sep 2025 830th FlyingPenguin223 947 58 424ms 25 Sep 2025 830th emgordon154 947 58 432ms 25 Sep 2025 830th duckyluuk 🇳🇱 947 58 406ms 25 Sep 2025 830th m-tkach 🇺🇦 947 58 387ms 25 Sep 2025 830th voytxt 🇨🇿 947 58 367ms 25 Sep 2025 830th Yewzir 🇧🇪 947 58 452ms 2 Oct 2025 830th Andrey2001 947 58 497ms 24 Nov 2025 841st I-Love-47 🇺🇦 947 70 73ms 8 Feb 2022 841st ZakkkkAttackkkk 🇵🇭 947 70 61ms 27 Jul 2022 841st FlorianCassayre 🇫🇷 947 70 64ms 10 Oct 2022 841st thatbirdguythatuknownot 947 70 67ms 8 Jan 2023 841st tailorspy 947 70 62ms 15 Mar 2023 841st neel11235813 947 70 57ms 16 Dec 2023 841st wlaud9 947 70 61ms 5 Feb 2024 841st SadiinsoSnowfall 🇫🇷 947 70 62ms 15 Feb 2024 841st oceko 947 70 58ms 19 Feb 2024 841st bac0id 947 70 66ms 23 Feb 2024 841st IlkkaTakala 947 70 66ms 26 Apr 2024 841st cefqrn 947 70 58ms 26 May 2024 841st Kacarott 🇦🇺 947 70 54ms 29 Aug 2024 841st edsrzf 🇳🇿 947 70 65ms 12 Sep 2024 841st plcc0 947 70 60ms 27 Mar 2025 841st emgordon154 947 70 62ms 1 Jun 2025 841st IntOverflow-maxwell 947 70 63ms 26 Aug 2025 841st timhaj 🇸🇮 947 70 60ms 12 Sep 2025 841st LordSir101 947 70 56ms 17 Sep 2025 841st Zounon 947 70 58ms 18 Sep 2025 841st qpwoeirut 947 70 66ms 14 Oct 2025 841st CaedenHarper 🇨🇦 947 70 57ms 30 Oct 2025 863rd Kacarott 🇦🇺 946 26 63ms 17 days ago 863rd GrayJoKing 🇦🇺 946 26 64ms 16 days ago 863rd error256 946 26 61ms 15 days ago 866th Attero 🇸🇪 946 52 367ms 21 Nov 2021 866th BBoehm 🇩🇪 946 52 372ms 21 Nov 2021 866th eldritchconundrum 946 52 368ms 21 Nov 2021 866th initram 946 52 366ms 21 Nov 2021 866th jakzo 946 52 364ms 21 Nov 2021 866th janbehrens 🇩🇪 946 52 357ms 21 Nov 2021 866th KatieLG 🇬🇧 946 52 339ms 21 Nov 2021 866th markdchurchill 946 52 349ms 21 Nov 2021 866th raphaelimahorn 946 52 366ms 21 Nov 2021 866th m-tkach 🇺🇦 946 52 378ms 2 Dec 2021 866th Irratix 🇳🇱 946 52 379ms 9 Dec 2021 866th SirBogman 🇺🇸 946 52 383ms 14 Dec 2021 866th ovs-code 🇩🇪 946 52 344ms 6 Jul 2022 866th Shanethegamer 🇺🇸 946 52 391ms 11 Jul 2022 866th tkr-sh 🇰🇵 946 52 361ms 14 Jul 2022 First Prev 801–880 of 9,527 Next Last