Collatz in Rust 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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 1st JayXon 🇺🇸 1,000 88 137ms 17 Oct 2022 1st acotis 1,000 88 129ms 9 Jun 2025 1st kumavale 1,000 88 135ms 7 Oct 2025 4th Lydxn 🇨🇦 978 90 127ms 6 May 2022 5th andersk 🇺🇸 967 91 130ms 25 Oct 2022 5th Super-Pizza 🇨🇦 967 91 131ms 4 Dec 2022 5th klixel 🇨🇦 967 91 128ms 20 May 2023 5th lynn 967 91 139ms 6 Jul 2024 5th edsrzf 🇳🇿 967 91 134ms 29 Nov 2024 5th DialFrost 🇸🇬 967 91 130ms 7 Apr 2025 5th elgan65536 🇺🇸 967 91 131ms 10 Feb 2026 5th fantaize 967 91 126ms 9 hours ago 13th stefangimmillaro 957 92 128ms 24 Oct 2023 13th inverseLorentz 🇦🇺 957 92 136ms 27 May 2024 13th sean-niemann 🇺🇸 957 92 126ms 8 Jun 2025 13th ian-h-chamberlain 🇺🇸 957 92 127ms 23 Nov 2025 17th oeb25 946 93 137ms 16 May 2022 17th snobee 🇨🇦 946 93 127ms 8 Dec 2022 17th logvp 946 93 125ms 2 Jan 2024 17th smartiel 946 93 129ms 12 Aug 2024 17th trist224 🇫🇷 946 93 123ms 12 Aug 2024 17th nullie 946 93 124ms 19 Dec 2024 17th lolgeny 946 93 127ms 22 Feb 2025 24th nipzu 936 94 128ms 17 May 2022 24th Natanaelel 🇸🇪 936 94 128ms 17 Jun 2022 24th nkoppel 936 94 130ms 19 Oct 2022 24th ovs-code 🇩🇪 936 94 122ms 21 Jun 2023 24th mousetail 🇳🇱 936 94 126ms 12 Jan 2024 29th TylerBloom 917 96 125ms 22 Mar 2024 30th henrydukepickle 907 97 132ms 8 Jul 2025 31st Shanethegamer 🇺🇸 898 98 133ms 26 Oct 2022 31st emgordon154 898 98 122ms 18 Feb 2025 33rd msbranicky 880 100 138ms 5 Oct 2023 33rd dokutan 880 100 124ms 3 Oct 2024 35th r-brinke 🇳🇱 871 101 131ms 24 Feb 2023 35th MeWhenI 🇻🇦 871 101 127ms 29 May 2023 35th HumanoidCPU 871 101 127ms 7 May 2024 35th luuumine 🇫🇷 871 101 124ms 11 Nov 2025 35th Heathcorp 🇦🇺 871 101 125ms 25 days ago 40th Starwort 🇬🇧 863 102 125ms 11 Nov 2022 40th okaponta 863 102 132ms 11 Jan 2024 40th unfinishedprogram 863 102 128ms 27 Jun 2025 40th Mabeloid 🇳🇴 863 102 126ms 31 Oct 2025 40th Lv0Sys 🇵🇱 863 102 125ms 7 Dec 2025 45th JGDoerrer 854 103 127ms 29 Jun 2022 45th AlexanderFair 854 103 123ms 5 Jul 2023 45th yamhab 🇨🇦 854 103 126ms 14 Sep 2023 45th siltyy 854 103 123ms 20 Mar 2024 49th Z-snails 846 104 130ms 27 Feb 2023 49th undersquire 846 104 125ms 21 Jun 2023 49th StronkCheese 🇺🇸 846 104 135ms 7 Sep 2023 49th 77Tigers 846 104 124ms 9 Apr 2024 49th ndren 846 104 127ms 14 Jul 2025 49th o800 846 104 124ms 17 Nov 2025 55th hueblu 838 105 126ms 30 May 2022 55th StHagel 838 105 126ms 25 May 2023 55th rucin93 🇵🇱 838 105 124ms 2 May 2024 55th Arkadios200 838 105 124ms 21 Sep 2025 59th wuzekai518 830 106 125ms 8 Jul 2024 60th TheSmilingTurtle 822 107 126ms 5 Jun 2022 61st snoozingnewt 🇨🇦 815 108 131ms 23 Sep 2023 61st madex 🇩🇪 815 108 130ms 9 Jul 2024 61st madeforlosers 815 108 127ms 5 Sep 2024 61st FortuiteMan 🇫🇷 815 108 136ms 10 Oct 2024 61st LvLError 815 108 131ms 29 May 2025 66th Alex-Huggett 🇬🇧 807 109 125ms 14 Apr 2024 66th TannerJ07 🇺🇸 807 109 117ms 4 Apr 2025 68th Betuaredead 800 110 128ms 5 Jan 2023 68th Florian-Mt 800 110 141ms 22 Jul 2024 68th asterized 800 110 118ms 24 Aug 2024 68th ComputerKWasTaken 🇺🇸 800 110 126ms 20 Jan 2025 68th CosmicRaichu 800 110 127ms 25 Apr 2025 68th kmathis22 800 110 122ms 24 Sep 2025 74th JohnSwiftC 793 111 139ms 31 Jan 2026 75th aDwarfNamedUrist 786 112 123ms 13 Dec 2022 75th lambda-abstraction 786 112 127ms 21 Oct 2023 75th drabart 🇵🇱 786 112 127ms 15 Dec 2023 78th jhpaques 🇫🇷 772 114 129ms 30 Jul 2022 79th avila-gabriel 759 116 133ms 17 Oct 2024 80th TheMadRey 746 118 125ms 5 Mar 2024 1–80 of 97 Next Last