Collatz in all languages 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 Rectangle Fill 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 478th GolfingSuccess 🇬🇷 894 74 17ms 19 days ago 478th snoozingnewt 🇨🇦 894 74 17ms 11 days ago 478th edsrzf 🇳🇿 894 74 16ms 5 days ago 484th Steffan153 🇫🇮 893 67 112ms 18 Dec 2022 484th Lydxn 🇨🇦 893 67 161ms 4 Feb 2023 484th DialFrost 🇸🇬 893 67 102ms 17 Mar 2025 487th NickTheEASDude 🇺🇸 893 76 6ms 7 May 2024 487th edsrzf 🇳🇿 893 76 6ms 23 Dec 2025 487th Shanethegamer 🇺🇸 893 76 5ms 23 Dec 2025 487th jared-hughes 893 76 5ms 24 Dec 2025 487th Waffle3z 893 76 5ms 26 Dec 2025 487th Blendi-Goose 893 76 5ms 6 Feb 2026 487th kTheLemon 893 76 5ms 8 days ago 494th GrayJoKing 🇦🇺 893 91 30ms 19 Jan 2023 495th SirBogman 🇺🇸 892 50 497ms 5 May 2022 495th nwellnhof 🇩🇪 892 50 427ms 3 Jun 2022 495th Lydxn 🇨🇦 892 50 440ms 15 Aug 2022 495th Steffan153 🇫🇮 892 50 489ms 9 Aug 2024 499th Lydxn 🇨🇦 892 72 353ms 16 Jul 2023 500th edsrzf 🇳🇿 892 78 12ms 26 Oct 2024 501st MichalMarsalek 🇨🇿 892 87 379ms 5 May 2022 501st Kloppermand 🇩🇰 892 87 375ms 7 Oct 2022 501st bwat2 892 87 385ms 6 Apr 2023 501st bpharaldsson 892 87 438ms 9 Feb 2026 505th Ripick 891 73 122ms 8 May 2023 506th dokutan 891 88 425ms 27 days ago 507th oeb25 891 93 137ms 16 May 2022 507th snobee 🇨🇦 891 93 127ms 8 Dec 2022 507th logvp 891 93 125ms 2 Jan 2024 507th smartiel 891 93 129ms 12 Aug 2024 507th trist224 🇫🇷 891 93 123ms 12 Aug 2024 507th nullie 891 93 124ms 19 Dec 2024 507th lolgeny 891 93 127ms 22 Feb 2025 514th GolfingSuccess 🇬🇷 891 95 61ms 5 May 2022 514th Alex-x90 🇺🇸 891 95 62ms 4 Dec 2022 514th Mandrzejy 🇵🇱 891 95 62ms 22 Mar 2024 517th m-tkach 🇺🇦 891 117 25ms 7 May 2022 517th Lydxn 🇨🇦 891 117 26ms 7 May 2022 519th p-zubieta 890 48 299ms 6 Mar 2024 520th KatieLG 🇬🇧 889 60 11ms 4 May 2022 520th ScottHamper 889 60 13ms 5 May 2022 520th Re-Adventures 🇮🇳 889 60 12ms 5 May 2022 520th 0x24a537r9 889 60 11ms 29 Jul 2022 520th stefangabos 🇷🇴 889 60 11ms 19 Aug 2022 520th eranws 889 60 12ms 10 Sep 2022 520th GeorgeStechman 🇬🇧 889 60 12ms 26 Sep 2022 520th BloodStormKnight 889 60 11ms 15 Oct 2022 520th dzshn 889 60 16ms 3 Dec 2022 520th biocommando 🇫🇮 889 60 13ms 20 Dec 2022 520th Betuaredead 889 60 11ms 5 Jan 2023 520th piano-miles 889 60 15ms 16 Jan 2023 520th Yewzir 🇧🇪 889 60 12ms 12 Feb 2023 520th shellbertt 🇨🇦 889 60 12ms 26 Feb 2023 520th zakariamouhid 889 60 13ms 20 May 2023 520th raphaelimahorn 889 60 14ms 23 Aug 2023 520th jbt 889 60 10ms 25 Dec 2023 520th olleicua 🇺🇸 889 60 12ms 15 Feb 2024 520th HumanoidCPU 889 60 11ms 3 May 2024 520th dokutan 889 60 13ms 13 Aug 2024 520th LostSyntax21 🇬🇧 889 60 12ms 10 Sep 2024 520th xyangst 889 60 11ms 28 Sep 2024 520th a6166231 🇨🇳 889 60 12ms 15 May 2025 520th Protothor 889 60 16ms 8 Jul 2025 520th SebassNoob 889 60 11ms 5 Aug 2025 520th levinwinter 889 60 13ms 22 Oct 2025 520th Cube14yt 889 60 12ms 16 Nov 2025 520th gigaprofisi 🇺🇸 889 60 10ms 17 Nov 2025 520th amazingalek 🇳🇴 889 60 11ms 20 Dec 2025 520th shandriy 889 60 17ms 23 Jan 2026 520th spidunno 889 60 17ms 26 days ago 551st JayXon 🇺🇸 889 74 2,178ms 14 Nov 2024 552nd Steffan153 🇫🇮 889 80 31ms 15 Nov 2022 552nd error256 889 80 121ms 8 Apr 2025 554th Lydxn 🇨🇦 888 107 284ms 6 May 2022 554th CaedenHarper 🇨🇦 888 107 299ms 5 Oct 2025 556th canissimia 🇦🇶 888 204 16ms 25 Nov 2023 557th Shanethegamer 🇺🇸 887 61 4ms 31 Oct 2022 557th MeWhenI 🇻🇦 887 61 4ms 4 Nov 2022 559th P-Quentin 🇫🇷 887 63 20ms 3 Aug 2022 559th kaptsanovb 887 63 25ms 20 Apr 2023 First Prev 481–560 of 3,600 Next Last