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 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 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 ArkScript 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 ArkScript 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 Calendar 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 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 43rd solisolu 981 52 416ms 21 Nov 2025 43rd Andrey2001 981 52 418ms 24 Nov 2025 43rd KasperKivimaeki 🇫🇮 981 52 441ms 26 Nov 2025 43rd Pyroan 981 52 464ms 17 Dec 2025 85th bac0id 962 53 417ms 21 Nov 2021 85th daniel-skalik 🇨🇿 962 53 410ms 21 Nov 2021 85th jmhowl 962 53 418ms 21 Nov 2021 85th pallbo 962 53 404ms 21 Nov 2021 85th revlayle 🇺🇸 962 53 403ms 21 Nov 2021 85th ScottHamper 962 53 408ms 21 Nov 2021 85th theentropic 962 53 415ms 21 Nov 2021 85th KrausRaus 🇺🇸 962 53 409ms 15 Dec 2021 85th Re-Adventures 🇮🇳 962 53 412ms 15 Feb 2022 85th hemphen 962 53 406ms 30 Aug 2022 85th jhpaques 🇫🇷 962 53 415ms 3 Dec 2022 85th annaproxy 962 53 406ms 22 Jan 2023 85th nesrak1 962 53 422ms 12 Oct 2024 85th plcc0 962 53 415ms 28 Mar 2025 85th gigaprofisi 🇺🇸 962 53 428ms 15 Nov 2025 85th dokutan 962 53 420ms 18 Nov 2025 85th FlyingPenguin223 962 53 409ms a min ago 102nd AdrialaD 944 54 406ms 21 Nov 2021 102nd aliakseikalosha 944 54 395ms 21 Nov 2021 102nd cros107 🇦🇺 944 54 388ms 21 Nov 2021 102nd iznax 944 54 420ms 21 Nov 2021 102nd simon-biber 944 54 397ms 5 Feb 2022 102nd scpchicken 🇵🇼 944 54 398ms 6 Jul 2022 102nd arctouch-sergeymetlov 944 54 402ms 30 Jan 2023 102nd arctouch-cristiannevianna 944 54 410ms 30 Jan 2023 102nd Adix-null 🇱🇹 944 54 404ms 4 Jul 2023 102nd BREMAUCY 🇫🇷 944 54 381ms 18 Jul 2023 102nd mathisfun271 944 54 382ms 21 Feb 2024 102nd HumanoidCPU 944 54 414ms 16 Mar 2024 102nd andrewjc2000 944 54 413ms 7 Mar 2025 102nd Theremon72 944 54 408ms 12 Mar 2025 102nd matejmatik123 🇸🇰 944 54 410ms 12 Aug 2025 117th Hankinabag 927 55 389ms 21 Nov 2021 117th Jeffreyvde 927 55 400ms 21 Nov 2021 117th Rens-br 927 55 378ms 21 Nov 2021 117th fredrik-bakke 🇳🇴 927 55 416ms 27 Mar 2022 117th Matgc04 927 55 399ms 31 May 2023 122nd joelgduggan 911 56 386ms 21 Nov 2021 122nd marcin7Cd 911 56 357ms 21 Nov 2021 122nd pan4ever 911 56 380ms 21 Nov 2021 122nd MichaelMBradley 🇨🇦 911 56 407ms 21 Mar 2022 122nd hamhub7 911 56 392ms 5 Aug 2022 122nd madeforlosers 911 56 451ms 22 Nov 2024 122nd SwordF-Official 911 56 394ms 12 Apr 2025 122nd blaztoma 🇱🇹 911 56 393ms 17 Aug 2025 130th Rhexis 895 57 411ms 21 Nov 2021 130th roavin 895 57 396ms 24 Jun 2022 130th Seanharrs 895 57 401ms 25 Aug 2022 130th Tavress 895 57 428ms 11 May 2023 130th postie77 895 57 391ms 19 May 2023 130th RandGuy 895 57 371ms 25 Jan 2024 130th ashtraypettingzoo 🇺🇸 895 57 379ms 19 Mar 2024 130th ertz1ertz 895 57 398ms 12 Jul 2024 130th gblikas 895 57 388ms 17 Aug 2024 130th arcpolaris 895 57 438ms 12 Dec 2024 130th CheeseCake628 🇳🇴 895 57 380ms 17 Jul 2025 130th Emutis 🇱🇹 895 57 413ms 16 Aug 2025 130th amazingalek 🇳🇴 895 57 353ms 20 Dec 2025 143rd AndrewSalls 879 58 411ms 21 Nov 2021 143rd aplato 879 58 407ms 21 Nov 2021 143rd stdstijn 879 58 381ms 21 Nov 2021 143rd magnusbakken 879 58 378ms 6 Dec 2021 143rd p-vf 🇨🇭 879 58 415ms 16 Jul 2022 143rd neel11235813 879 58 414ms 26 Mar 2024 143rd Just4FunCoder 879 58 404ms 26 Aug 2024 143rd WalrusesAreAwesome 879 58 422ms 25 Mar 2025 151st kebal2 864 59 426ms 21 Nov 2021 151st tdkkdt 🇷🇺 864 59 391ms 21 Nov 2021 151st arctouch-andresato 864 59 400ms 11 Nov 2022 151st maki-chan 864 59 378ms 9 Jun 2023 151st LS2021 864 59 383ms 23 Nov 2023 151st acotis 864 59 389ms 11 Jan 2025 151st 123mjb 864 59 392ms 23 Jun 2025 151st ibiza240 864 59 390ms 21 Sep 2025 151st tomh1012 864 59 358ms 3 Dec 2025 160th Bobini1 🇵🇱 850 60 416ms 21 Nov 2021 First Prev 81–160 of 328 Next Last