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 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 Calendar 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 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 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 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 Calendar 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 1st JayXon 🇺🇸 1,000 88 127ms 17 Oct 2022 1st acotis 1,000 88 119ms 9 Jun 2025 1st kumavale 1,000 88 136ms 7 Oct 2025 4th Lydxn 🇨🇦 978 90 125ms 6 May 2022 5th andersk 🇺🇸 967 91 124ms 25 Oct 2022 5th Super-Pizza 🇨🇦 967 91 124ms 4 Dec 2022 5th klixel 🇨🇦 967 91 125ms 20 May 2023 5th lynn 967 91 122ms 6 Jul 2024 5th edsrzf 🇳🇿 967 91 125ms 29 Nov 2024 5th DialFrost 🇸🇬 967 91 136ms 7 Apr 2025 11th stefangimmillaro 957 92 131ms 24 Oct 2023 11th inverseLorentz 🇦🇺 957 92 128ms 27 May 2024 11th sean-niemann 🇺🇸 957 92 125ms 8 Jun 2025 11th ian-h-chamberlain 🇺🇸 957 92 123ms 18 days ago 15th oeb25 946 93 120ms 16 May 2022 15th snobee 🇨🇦 946 93 119ms 8 Dec 2022 15th logvp 946 93 120ms 2 Jan 2024 15th elgan65536 946 93 120ms 5 Mar 2024 15th smartiel 946 93 124ms 12 Aug 2024 15th trist224 🇫🇷 946 93 122ms 12 Aug 2024 15th nullie 946 93 119ms 19 Dec 2024 15th lolgeny 946 93 116ms 22 Feb 2025 23rd nipzu 936 94 116ms 17 May 2022 23rd Natanaelel 🇸🇪 936 94 125ms 17 Jun 2022 23rd nkoppel 936 94 120ms 19 Oct 2022 23rd ovs-code 🇩🇪 936 94 120ms 21 Jun 2023 23rd mousetail 🇳🇱 936 94 124ms 12 Jan 2024 28th TylerBloom 917 96 115ms 22 Mar 2024 29th henrydukepickle 907 97 118ms 8 Jul 2025 30th Shanethegamer 🇺🇸 898 98 119ms 26 Oct 2022 30th emgordon154 898 98 121ms 18 Feb 2025 32nd msbranicky 880 100 119ms 5 Oct 2023 32nd dokutan 880 100 119ms 3 Oct 2024 34th r-brinke 🇳🇱 871 101 127ms 24 Feb 2023 34th MeWhenI 🇻🇦 871 101 123ms 29 May 2023 34th HumanoidCPU 871 101 118ms 7 May 2024 34th luuumine 🇫🇷 871 101 116ms 11 Nov 2025 38th Starwort 🇬🇧 863 102 117ms 11 Nov 2022 38th okaponta 863 102 118ms 11 Jan 2024 38th unfinishedprogram 863 102 121ms 27 Jun 2025 38th Mabeloid 🇳🇴 863 102 121ms 31 Oct 2025 38th Lv0Sys 🇵🇱 863 102 128ms 4 days ago 43rd JGDoerrer 854 103 115ms 29 Jun 2022 43rd AlexanderFair 854 103 117ms 5 Jul 2023 43rd yamhab 🇨🇦 854 103 118ms 14 Sep 2023 43rd siltyy 854 103 117ms 20 Mar 2024 47th Z-snails 846 104 124ms 27 Feb 2023 47th undersquire 846 104 119ms 21 Jun 2023 47th StronkCheese 🇺🇸 846 104 119ms 7 Sep 2023 47th 77Tigers 846 104 120ms 9 Apr 2024 47th ndren 846 104 116ms 14 Jul 2025 47th o800 846 104 115ms 24 days ago 53rd hueblu 838 105 124ms 30 May 2022 53rd StHagel 838 105 118ms 25 May 2023 53rd rucin93 🇵🇱 838 105 117ms 2 May 2024 53rd Arkadios200 838 105 120ms 21 Sep 2025 57th wuzekai518 830 106 117ms 8 Jul 2024 58th TheSmilingTurtle 822 107 120ms 5 Jun 2022 59th Heathcorp 🇦🇺 815 108 118ms 25 Aug 2023 59th snoozingnewt 🇨🇦 815 108 121ms 23 Sep 2023 59th madex 🇩🇪 815 108 117ms 9 Jul 2024 59th madeforlosers 815 108 121ms 5 Sep 2024 59th FortuiteMan 🇫🇷 815 108 122ms 10 Oct 2024 59th LvLError 815 108 116ms 29 May 2025 65th Alex-Huggett 🇬🇧 807 109 121ms 14 Apr 2024 65th TannerJ07 🇺🇸 807 109 123ms 4 Apr 2025 67th Betuaredead 800 110 121ms 5 Jan 2023 67th Florian-Mt 800 110 124ms 22 Jul 2024 67th asterized 800 110 131ms 24 Aug 2024 67th ComputerKWasTaken 🇺🇸 800 110 136ms 20 Jan 2025 67th CosmicRaichu 800 110 131ms 25 Apr 2025 67th kmathis22 800 110 120ms 24 Sep 2025 73rd aDwarfNamedUrist 786 112 121ms 13 Dec 2022 73rd lambda-abstraction 786 112 124ms 21 Oct 2023 73rd drabart 🇵🇱 786 112 121ms 15 Dec 2023 1–75 of 95 Next Last