The Calendar hole will go live in approximately 13 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 401st achimkrause 964 35 114ms 11 Jul 2018 401st HPWiz 🇳🇿 964 35 122ms 17 Jul 2018 401st yanqui-uxo 964 35 122ms 6 Oct 2018 401st laikoni 964 35 112ms 27 Feb 2019 401st kops-cg 964 35 296ms 8 Apr 2021 401st xnor-gate 964 35 120ms 8 Apr 2021 401st sisyphus-ppcg 🇦🇺 964 35 117ms 3 May 2021 401st rak1507 🇬🇧 964 35 113ms 4 May 2021 401st lynn 964 35 119ms 5 Jun 2021 401st ssiquoya 🇷🇺 964 35 144ms 9 Jun 2021 401st Lydxn 🇨🇦 964 35 116ms 12 Jul 2021 401st JayXon 🇺🇸 964 35 117ms 15 Sep 2021 401st annaproxy 964 35 117ms 4 Jan 2022 401st btnlq 964 35 117ms 4 Feb 2022 401st arjanadriaanse 🇳🇱 964 35 123ms 10 Feb 2022 401st ovs-code 🇩🇪 964 35 154ms 6 Mar 2022 401st GrayJoKing 🇦🇺 964 35 115ms 10 Mar 2022 401st Sakisan 🇧🇪 964 35 119ms 5 Apr 2022 401st Shanethegamer 🇺🇸 964 35 120ms 7 Apr 2022 401st Steffan153 🇫🇮 964 35 121ms 17 Dec 2022 401st betaveros 964 35 124ms 4 Jan 2023 401st ashtraypettingzoo 🇺🇸 964 35 121ms 10 Feb 2023 401st aionescu 964 35 125ms 9 Apr 2023 401st sean-niemann 🇺🇸 964 35 114ms 1 Jul 2023 401st TrueBoxGuy 964 35 122ms 10 Aug 2023 401st stackofbears 964 35 114ms 9 Sep 2023 401st Natanaelel 🇸🇪 964 35 119ms 10 Jan 2024 401st orthoplex 🇨🇽 964 35 144ms 25 Jul 2024 401st DialFrost 🇸🇬 964 35 120ms 5 Aug 2024 401st pardouin 🇫🇷 964 35 117ms 22 Sep 2024 401st 09cf 964 35 118ms 9 May 2025 401st fuzzylojik-golf 🇺🇸 964 35 143ms 11 Sep 2025 433rd Lydxn 🇨🇦 964 51 374ms 21 Nov 2021 433rd billings7 🇬🇧 964 51 381ms 21 Nov 2021 433rd JayXon 🇺🇸 964 51 374ms 21 Nov 2021 433rd jwalaszek 964 51 372ms 21 Nov 2021 433rd Kloppermand 🇩🇰 964 51 530ms 21 Nov 2021 433rd lynn 964 51 344ms 21 Nov 2021 433rd MatheusAvellar 🇧🇷 964 51 352ms 21 Nov 2021 433rd Meowsan91 🇨🇿 964 51 370ms 21 Nov 2021 433rd MeWhenI 🇻🇦 964 51 335ms 21 Nov 2021 433rd mrondon8 964 51 386ms 21 Nov 2021 433rd NewDefectus 🇮🇱 964 51 363ms 21 Nov 2021 433rd nwellnhof 🇩🇪 964 51 380ms 21 Nov 2021 433rd primo-ppcg 🇹🇭 964 51 372ms 21 Nov 2021 433rd sean-niemann 🇺🇸 964 51 376ms 21 Nov 2021 433rd shellbertt 🇨🇦 964 51 361ms 21 Nov 2021 433rd sisyphus-ppcg 🇦🇺 964 51 363ms 21 Nov 2021 433rd ssiquoya 🇷🇺 964 51 393ms 21 Nov 2021 433rd thestretivibity 964 51 374ms 21 Nov 2021 433rd tomtheisen 🇺🇸 964 51 359ms 21 Nov 2021 433rd Trickermand 964 51 361ms 21 Nov 2021 433rd voytasify 🇵🇱 964 51 357ms 21 Nov 2021 433rd btnlq 964 51 361ms 28 Nov 2021 433rd prplz 🇦🇺 964 51 370ms 7 Jan 2022 433rd GrayJoKing 🇦🇺 964 51 375ms 17 Oct 2022 433rd DialFrost 🇸🇬 964 51 375ms 7 Jan 2023 433rd Steffan153 🇫🇮 964 51 391ms 28 Jan 2023 433rd peeveen 🇬🇧 964 51 374ms 15 Sep 2023 433rd Herbert00709 🇵🇱 964 51 369ms 18 Nov 2023 433rd roupiq 🇵🇱 964 51 368ms 19 Feb 2024 433rd Mandrzejy 🇵🇱 964 51 369ms 27 Mar 2024 433rd jipsong 🇩🇪 964 51 365ms 13 Jun 2024 433rd namelessiw 964 51 371ms 13 Jun 2024 433rd Jacob385 964 51 370ms 30 Jul 2024 433rd pardouin 🇫🇷 964 51 397ms 24 Sep 2024 433rd stefangimmillaro 964 51 352ms 24 Sep 2024 433rd b-illy 🇬🇧 964 51 333ms 17 Jan 2025 433rd Yax42 🇫🇷 964 51 363ms 6 Feb 2025 433rd fuzzylojik-golf 🇺🇸 964 51 388ms 2 Jun 2025 433rd AdrienHache 🇫🇷 964 51 362ms 7 Sep 2025 433rd Decrare 964 51 370ms 11 Sep 2025 433rd snoozingnewt 🇨🇦 964 51 375ms 4 Oct 2025 474th pardouin 🇫🇷 964 57 444ms 24 Sep 2025 474th DialFrost 🇸🇬 964 57 458ms 24 Sep 2025 474th JayXon 🇺🇸 964 57 479ms 24 Sep 2025 474th fuzzylojik-golf 🇺🇸 964 57 494ms 24 Sep 2025 474th snoozingnewt 🇨🇦 964 57 450ms 24 Sep 2025 474th b-illy 🇬🇧 964 57 444ms 24 Sep 2025 474th sean-niemann 🇺🇸 964 57 447ms 24 Sep 2025 First Prev 401–480 of 9,518 Next Last