Collatz in Rust in bytes. 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 Bytes Time Submitted 1st JayXon 🇺🇸 1,000 88 139ms 17 Oct 2022 1st acotis 1,000 88 133ms 9 Jun 2025 1st kumavale 1,000 88 129ms 7 Oct 2025 4th Lydxn 🇨🇦 978 90 128ms 6 May 2022 5th andersk 🇺🇸 967 91 139ms 25 Oct 2022 5th Super-Pizza 🇨🇦 967 91 128ms 4 Dec 2022 5th klixel 🇨🇦 967 91 126ms 20 May 2023 5th lynn 967 91 128ms 6 Jul 2024 5th edsrzf 🇳🇿 967 91 126ms 29 Nov 2024 5th DialFrost 🇸🇬 967 91 133ms 7 Apr 2025 5th elgan65536 🇺🇸 967 91 122ms 10 Feb 2026 5th fantaize 967 91 123ms 23 days ago 13th stefangimmillaro 957 92 130ms 24 Oct 2023 13th inverseLorentz 🇦🇺 957 92 120ms 27 May 2024 13th sean-niemann 🇺🇸 957 92 129ms 8 Jun 2025 13th ian-h-chamberlain 🇺🇸 957 92 146ms 23 Nov 2025 13th jusaka 957 92 128ms 9 mins ago 18th oeb25 946 93 127ms 16 May 2022 18th snobee 🇨🇦 946 93 128ms 8 Dec 2022 18th logvp 946 93 130ms 2 Jan 2024 18th smartiel 946 93 127ms 12 Aug 2024 18th trist224 🇫🇷 946 93 127ms 12 Aug 2024 18th nullie 946 93 128ms 19 Dec 2024 18th lolgeny 946 93 138ms 22 Feb 2025 25th nipzu 936 94 134ms 17 May 2022 25th Natanaelel 🇸🇪 936 94 126ms 17 Jun 2022 25th nkoppel 936 94 122ms 19 Oct 2022 25th ovs-code 🇩🇪 936 94 126ms 21 Jun 2023 25th mousetail 🇳🇱 936 94 131ms 12 Jan 2024 30th TylerBloom 917 96 123ms 22 Mar 2024 31st henrydukepickle 907 97 125ms 8 Jul 2025 32nd Shanethegamer 🇺🇸 898 98 126ms 26 Oct 2022 32nd emgordon154 898 98 125ms 18 Feb 2025 34th msbranicky 880 100 123ms 5 Oct 2023 34th dokutan 880 100 128ms 3 Oct 2024 36th r-brinke 🇳🇱 871 101 123ms 24 Feb 2023 36th MeWhenI 🇻🇦 871 101 123ms 29 May 2023 36th HumanoidCPU 871 101 124ms 7 May 2024 36th luuumine 🇫🇷 871 101 126ms 11 Nov 2025 36th Heathcorp 🇦🇺 871 101 119ms 13 Feb 2026 36th madex 🇩🇪 871 101 126ms 18 days ago 42nd Starwort 🇬🇧 863 102 123ms 11 Nov 2022 42nd okaponta 863 102 130ms 11 Jan 2024 42nd unfinishedprogram 863 102 117ms 27 Jun 2025 42nd Mabeloid 🇳🇴 863 102 128ms 31 Oct 2025 42nd Lv0Sys 🇵🇱 863 102 119ms 7 Dec 2025 47th JGDoerrer 854 103 123ms 29 Jun 2022 47th AlexanderFair 854 103 125ms 5 Jul 2023 47th yamhab 🇨🇦 854 103 124ms 14 Sep 2023 47th siltyy 854 103 124ms 20 Mar 2024 51st Z-snails 846 104 126ms 27 Feb 2023 51st undersquire 846 104 124ms 21 Jun 2023 51st StronkCheese 🇺🇸 846 104 123ms 7 Sep 2023 51st 77Tigers 846 104 131ms 9 Apr 2024 51st ndren 846 104 136ms 14 Jul 2025 51st o800 846 104 123ms 17 Nov 2025 51st vang1ong7ang 846 104 135ms 38 hours ago 58th hueblu 838 105 122ms 30 May 2022 58th StHagel 838 105 125ms 25 May 2023 58th rucin93 🇵🇱 838 105 123ms 2 May 2024 58th Arkadios200 838 105 124ms 21 Sep 2025 62nd wuzekai518 830 106 124ms 8 Jul 2024 63rd TheSmilingTurtle 822 107 124ms 5 Jun 2022 64th snoozingnewt 🇨🇦 815 108 123ms 23 Sep 2023 64th madeforlosers 815 108 124ms 5 Sep 2024 64th FortuiteMan 🇫🇷 815 108 126ms 10 Oct 2024 64th LvLError 815 108 123ms 29 May 2025 68th Alex-Huggett 🇬🇧 807 109 126ms 14 Apr 2024 68th TannerJ07 🇺🇸 807 109 123ms 4 Apr 2025 70th Betuaredead 800 110 125ms 5 Jan 2023 70th Florian-Mt 800 110 129ms 22 Jul 2024 70th asterized 800 110 130ms 24 Aug 2024 70th ComputerKWasTaken 🇺🇸 800 110 127ms 20 Jan 2025 70th CosmicRaichu 800 110 125ms 25 Apr 2025 70th kmathis22 800 110 122ms 24 Sep 2025 76th JohnSwiftC 793 111 169ms 31 Jan 2026 77th aDwarfNamedUrist 786 112 143ms 13 Dec 2022 77th lambda-abstraction 786 112 139ms 21 Oct 2023 77th drabart 🇵🇱 786 112 135ms 15 Dec 2023 80th jhpaques 🇫🇷 772 114 124ms 30 Jul 2022 1–80 of 99 Next Last