Fibonacci in C# 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 43rd solisolu 981 52 375ms 21 Nov 2025 43rd Andrey2001 981 52 416ms 24 Nov 2025 43rd KasperKivimaeki 🇫🇮 981 52 381ms 26 Nov 2025 43rd Pyroan 981 52 377ms 17 Dec 2025 43rd FlyingPenguin223 981 52 381ms 20 Jan 2026 86th bac0id 962 53 383ms 21 Nov 2021 86th daniel-skalik 🇨🇿 962 53 376ms 21 Nov 2021 86th jmhowl 962 53 392ms 21 Nov 2021 86th pallbo 962 53 381ms 21 Nov 2021 86th revlayle 🇺🇸 962 53 369ms 21 Nov 2021 86th ScottHamper 962 53 374ms 21 Nov 2021 86th theentropic 962 53 385ms 21 Nov 2021 86th KrausRaus 🇺🇸 962 53 374ms 15 Dec 2021 86th Re-Adventures 🇮🇳 962 53 370ms 15 Feb 2022 86th hemphen 962 53 376ms 30 Aug 2022 86th jhpaques 🇫🇷 962 53 392ms 3 Dec 2022 86th annaproxy 962 53 385ms 22 Jan 2023 86th nesrak1 962 53 384ms 12 Oct 2024 86th plcc0 962 53 391ms 28 Mar 2025 86th gigaprofisi 🇺🇸 962 53 374ms 15 Nov 2025 86th dokutan 962 53 381ms 18 Nov 2025 86th matanberstadt 962 53 415ms 93 mins ago 103rd AdrialaD 944 54 385ms 21 Nov 2021 103rd aliakseikalosha 944 54 374ms 21 Nov 2021 103rd cros107 🇦🇺 944 54 372ms 21 Nov 2021 103rd iznax 944 54 403ms 21 Nov 2021 103rd simon-biber 944 54 368ms 5 Feb 2022 103rd scpchicken 🇵🇼 944 54 369ms 6 Jul 2022 103rd arctouch-sergeymetlov 944 54 374ms 30 Jan 2023 103rd arctouch-cristiannevianna 944 54 367ms 30 Jan 2023 103rd Adix-null 🇱🇹 944 54 379ms 4 Jul 2023 103rd BREMAUCY 🇫🇷 944 54 378ms 18 Jul 2023 103rd mathisfun271 944 54 353ms 21 Feb 2024 103rd HumanoidCPU 944 54 378ms 16 Mar 2024 103rd andrewjc2000 944 54 380ms 7 Mar 2025 103rd Theremon72 944 54 359ms 12 Mar 2025 103rd matejmatik123 🇸🇰 944 54 380ms 12 Aug 2025 103rd kasarino 944 54 361ms 26 days ago 119th Hankinabag 927 55 359ms 21 Nov 2021 119th Jeffreyvde 927 55 353ms 21 Nov 2021 119th Rens-br 927 55 368ms 21 Nov 2021 119th fredrik-bakke 🇳🇴 927 55 353ms 27 Mar 2022 119th Matgc04 927 55 384ms 31 May 2023 124th joelgduggan 911 56 369ms 21 Nov 2021 124th marcin7Cd 911 56 356ms 21 Nov 2021 124th pan4ever 911 56 361ms 21 Nov 2021 124th MichaelMBradley 🇨🇦 911 56 379ms 21 Mar 2022 124th hamhub7 911 56 378ms 5 Aug 2022 124th madeforlosers 911 56 377ms 22 Nov 2024 124th SwordF-Official 🇺🇸 911 56 384ms 12 Apr 2025 124th blaztoma 🇱🇹 911 56 392ms 17 Aug 2025 132nd Rhexis 895 57 385ms 21 Nov 2021 132nd roavin 895 57 357ms 24 Jun 2022 132nd Seanharrs 🇦🇺 895 57 389ms 25 Aug 2022 132nd Tavress 895 57 384ms 11 May 2023 132nd postie77 895 57 366ms 19 May 2023 132nd RandGuy 895 57 365ms 25 Jan 2024 132nd ashtraypettingzoo 🇺🇸 895 57 366ms 19 Mar 2024 132nd ertz1ertz 895 57 345ms 12 Jul 2024 132nd gblikas 895 57 357ms 17 Aug 2024 132nd arcpolaris 895 57 388ms 12 Dec 2024 132nd CheeseCake628 🇳🇴 895 57 399ms 17 Jul 2025 132nd Emutis 🇱🇹 895 57 377ms 16 Aug 2025 132nd amazingalek 🇳🇴 895 57 398ms 20 Dec 2025 145th AndrewSalls 879 58 376ms 21 Nov 2021 145th aplato 879 58 380ms 21 Nov 2021 145th stdstijn 879 58 351ms 21 Nov 2021 145th magnusbakken 879 58 363ms 6 Dec 2021 145th p-vf 🇨🇭 879 58 353ms 16 Jul 2022 145th neel11235813 879 58 384ms 26 Mar 2024 145th Just4FunCoder 879 58 366ms 26 Aug 2024 145th WalrusesAreAwesome 879 58 362ms 25 Mar 2025 153rd kebal2 864 59 385ms 21 Nov 2021 153rd tdkkdt 🇷🇺 864 59 346ms 21 Nov 2021 153rd arctouch-andresato 864 59 376ms 11 Nov 2022 153rd maki-chan 864 59 369ms 9 Jun 2023 153rd LS2021 864 59 381ms 23 Nov 2023 153rd acotis 864 59 365ms 11 Jan 2025 153rd 123mjb 864 59 355ms 23 Jun 2025 153rd ibiza240 864 59 360ms 21 Sep 2025 First Prev 81–160 of 334 Next Last