Collatz in C# in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang 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 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 Erlang 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 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st Lydxn 🇨🇦 1,000 82 6 May 2022 1st JayXon 🇺🇸 1,000 82 406ms 9 May 2022 3rd Irratix 🇳🇱 988 83 409ms 4 May 2022 3rd nwellnhof 🇩🇪 988 83 323ms 4 May 2022 3rd ScottHamper 988 83 376ms 5 May 2022 3rd Romain-1 🇫🇷 988 83 339ms 1 Jun 2022 3rd Gaddy 🇫🇷 988 83 426ms 1 Jun 2022 3rd 5quiwyrm 988 83 381ms 4 Sep 2022 3rd Betuaredead 988 83 426ms 5 Jan 2023 3rd Yewzir 🇧🇪 988 83 351ms 12 Feb 2023 3rd btnlq 988 83 377ms 9 Mar 2023 3rd Adix-null 🇱🇹 988 83 376ms 17 May 2023 3rd AdrienHache 🇫🇷 988 83 355ms 8 Jun 2023 3rd gblikas 988 83 376ms 23 Jul 2023 3rd KrausRaus 🇺🇸 988 83 347ms 31 Jul 2023 3rd namelessiw 988 83 329ms 9 Apr 2025 3rd dokutan 988 83 420ms 9 Apr 2025 3rd m-tkach 🇺🇦 988 83 333ms 10 Apr 2025 3rd DialFrost 🇸🇬 988 83 350ms 10 Apr 2025 3rd Pecanolith 988 83 353ms 19 Apr 2025 3rd Tyrant7 988 83 331ms 19 Apr 2025 3rd Yax42 🇫🇷 988 83 374ms 19 Apr 2025 3rd MeWhenI 🇻🇦 988 83 352ms 19 Jun 2025 3rd sean-niemann 🇺🇸 988 83 358ms 20 Jun 2025 3rd stefangimmillaro 988 83 384ms 20 Jun 2025 3rd tomh1012 988 83 324ms 28 Aug 2025 3rd fuzzylojik-golf 🇺🇸 988 83 346ms 8 Sep 2025 3rd CaedenHarper 🇨🇦 988 83 4 days ago 29th roavin 976 84 338ms 23 Jun 2022 29th tkr-sh 🇫🇷 976 84 330ms 20 Aug 2022 29th Nickmiste 976 84 360ms 9 Nov 2022 29th Matgc04 976 84 396ms 19 May 2023 29th postie77 976 84 358ms 19 May 2023 29th ertz1ertz 976 84 364ms 13 Sep 2024 29th Grabnukebomb 976 84 374ms 13 Sep 2024 29th Shanethegamer 🇺🇸 976 84 342ms 9 Apr 2025 29th HumanoidCPU 976 84 370ms 10 Apr 2025 29th annaproxy 976 84 340ms 11 Apr 2025 29th Re-Adventures 🇮🇳 976 84 335ms 15 Apr 2025 29th janbehrens 🇩🇪 976 84 352ms 17 Apr 2025 29th Flix7dev 🇧🇪 976 84 336ms 18 hours ago 42nd arctouch-cristiannevianna 965 85 366ms 3 Apr 2023 42nd tomtheisen 🇺🇸 965 85 340ms 10 Apr 2025 44th krcs 🇵🇱 953 86 325ms 10 May 2022 44th billings7 🇬🇧 953 86 411ms 15 May 2022 44th revlayle 🇺🇸 953 86 353ms 7 Dec 2022 44th Widgitty 953 86 356ms 1 Sep 2023 44th albanian-laundromat 953 86 319ms 22 days ago 49th MichalMarsalek 🇨🇿 943 87 334ms 5 May 2022 49th Kloppermand 🇩🇰 943 87 343ms 7 Oct 2022 49th bwat2 943 87 321ms 6 Apr 2023 52nd SiestaGuru 932 88 325ms 9 Jan 2023 52nd rifatx 932 88 312ms 5 Jul 2024 52nd kmathis22 932 88 26 days ago 55th c0d3-4-F00d 🇩🇪 921 89 344ms 5 May 2022 55th fkantelberg 921 89 401ms 15 Jul 2023 55th TRexOnGit 921 89 360ms 16 Feb 2024 55th arcpolaris 921 89 318ms 18 Nov 2024 59th bac0id 911 90 363ms 26 Sep 2023 59th deadp4nda 🇩🇪 911 90 343ms 26 Apr 2024 59th 123mjb 911 90 23 Jun 2025 59th michelebastione 🇮🇹 911 90 314ms 24 Aug 2025 63rd eshilo-draper 901 91 348ms 4 Sep 2022 63rd ericlangedijk 🇸🇮 901 91 387ms 23 May 2023 63rd KatieLG 🇬🇧 901 91 356ms 30 Apr 2024 63rd Mikey-Beep 🇬🇧 901 91 345ms 3 Sep 2024 67th bschorno 891 92 337ms 12 Oct 2022 67th ChrisTheisen 891 92 374ms 14 Dec 2022 67th kellantech 891 92 333ms 4 Jul 2023 67th Mezzofloat 891 92 286ms 26 Aug 2023 67th Maximizer02 891 92 291ms 1 Oct 2023 67th madeforlosers 891 92 296ms 21 Nov 2024 67th ChromaChroma 891 92 342ms 14 days ago 67th snoozingnewt 🇺🇸 891 92 13 days ago 75th p-vf 🇨🇭 882 93 371ms 24 Jun 2022 1–75 of 112 Next Last