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 153rd tomh1012 864 59 379ms 3 Dec 2025 153rd bpharaldsson 864 59 354ms 4 Feb 2026 163rd Bobini1 🇵🇱 850 60 375ms 21 Nov 2021 163rd JDiLenarda 🇫🇷 850 60 366ms 21 Nov 2021 163rd najs91 850 60 376ms 21 Nov 2021 163rd yzhs 🇩🇪 850 60 376ms 21 Nov 2021 163rd joharasmus 🇸🇪 850 60 363ms 19 Jul 2022 163rd JaroPolhosDev 850 60 358ms 13 Sep 2023 163rd GarethSpring 850 60 373ms 19 Sep 2023 163rd mqtze 850 60 371ms 21 Sep 2023 163rd puddnova 850 60 377ms 22 Oct 2024 163rd michelebastione 🇮🇹 850 60 390ms 13 Aug 2025 163rd Matter1024 🇮🇳 850 60 374ms 13 days ago 174th PatrickKocken 836 61 361ms 21 Nov 2021 174th TeDeMos 836 61 364ms 21 Nov 2021 174th castur1 836 61 339ms 27 Jan 2022 174th centrolutions 836 61 363ms 24 Nov 2022 174th dorschmeister 836 61 357ms 19 May 2023 174th fkantelberg 836 61 368ms 15 Jul 2023 174th josephdwalker 836 61 378ms 14 Nov 2023 174th epic-programmer-guy 836 61 361ms 25 Dec 2023 174th codewrite 🇬🇧 836 61 401ms 19 Apr 2025 174th Alex-Huggett 🇬🇧 836 61 355ms 13 Sep 2025 184th jahakari 823 62 368ms 21 Nov 2021 184th MichalMarsalek 🇨🇿 823 62 373ms 29 Nov 2021 184th owen-c-parker 🇺🇸 823 62 385ms 25 Nov 2022 184th Mezzofloat 823 62 365ms 24 Aug 2023 184th nyoshe 823 62 353ms 10 Oct 2023 184th hippopotam00sehead 🇨🇦 823 62 349ms 11 Sep 2024 184th Stockoh 🇫🇷 823 62 380ms 4 Nov 2024 184th desecaw13 823 62 437ms 24 Jan 2025 192nd ILMTitan 810 63 367ms 21 Nov 2021 192nd Domicnt 810 63 361ms 1 Jan 2022 192nd CedricGebistorf 810 63 376ms 3 Feb 2022 192nd ChrisTheisen 810 63 371ms 13 Dec 2022 192nd TimJackMaster 810 63 352ms 25 Jan 2023 192nd gazle 810 63 375ms 25 Apr 2024 198th muztanger 797 64 354ms 21 Nov 2021 198th Xwilarg 🇫🇷 797 64 366ms 21 Nov 2021 198th Ripick 797 64 364ms 30 Apr 2023 198th usernamethatisnttaken 797 64 363ms 6 Sep 2023 198th Mikey-Beep 🇬🇧 797 64 366ms 24 Jul 2025 203rd Andre3582 785 65 371ms 21 Nov 2021 203rd enbyte 785 65 357ms 21 Nov 2021 203rd MLPdiscord 785 65 352ms 6 Jan 2022 203rd Nickmiste 785 65 374ms 13 Nov 2022 203rd mqyhlkahu 785 65 366ms 10 Sep 2023 203rd trinityy-7 785 65 382ms 6 Mar 2024 203rd msbranicky 785 65 365ms 3 Jul 2024 210th aaronze 🇦🇺 773 66 376ms 21 Nov 2021 210th elephantpanda 773 66 373ms 26 Aug 2022 210th eshilo-draper 773 66 375ms 5 Oct 2022 210th heanyang1 773 66 350ms 22 Apr 2025 210th jacekwladzinski 773 66 361ms 2 Oct 2025 210th dpethes 773 66 403ms 10 Dec 2025 216th TheMickeyMouse 761 67 352ms 21 Nov 2021 216th aDwarfNamedUrist 761 67 368ms 21 Nov 2022 216th glatzert 761 67 385ms 12 May 2023 216th Sciman101 761 67 366ms 15 May 2023 216th eiburns 761 67 356ms 7 Sep 2023 216th rollershutter 761 67 342ms 29 Jan 2025 216th kevinnaviapaiva 761 67 353ms 19 Feb 2025 223rd jcheritat 750 68 370ms 21 Nov 2021 223rd PhonicCanine 750 68 368ms 21 Nov 2021 223rd Gpopcorn 750 68 358ms 31 Mar 2022 223rd Mortis66666 750 68 368ms 27 May 2022 223rd 104210 750 68 383ms 12 Sep 2022 223rd Pyro569 750 68 366ms 31 Jul 2023 229th martinnorling 🇸🇪 739 69 336ms 15 Feb 2022 229th PyryL 🇫🇮 739 69 378ms 23 Aug 2024 229th Flix7dev 🇧🇪 739 69 365ms 21 Oct 2025 232nd Skellybob56 729 70 367ms 10 Nov 2025 233rd Cbrt74088 718 71 353ms 21 Nov 2021 233rd MrGraduate 718 71 369ms 21 Nov 2021 233rd ccolella-mdc 718 71 371ms 12 Oct 2023 233rd Zach1031 718 71 388ms 7 days ago 237th charliegaming 708 72 385ms 3 Oct 2023 237th jtaxen 708 72 382ms 30 Mar 2024 237th JarrodCope 708 72 354ms 19 Apr 2024 240th ericlangedijk 🇸🇮 699 73 374ms 6 Mar 2022 First Prev 161–240 of 334 Next Last