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 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 Chars Time Submitted 641st Steffan153 🇫🇮 880 75 2,579ms 9 days ago 642nd GrayJoKing 🇦🇺 879 84 35ms 19 Jun 2022 642nd primo-ppcg 🇹🇭 879 84 36ms 29 Jun 2022 642nd MeWhenI 🇻🇦 879 84 38ms 30 Dec 2025 645th emgordon154 879 96 117ms 3 Dec 2025 646th JayXon 🇺🇸 879 157 1,772ms 14 Sep 2025 647th mousetail 🇳🇱 877 40 66ms 29 Aug 2025 648th Shanethegamer 🇺🇸 877 142 1,461ms 27 Mar 2025 648th DialFrost 🇸🇬 877 142 1,432ms 28 Mar 2025 648th emgordon154 877 142 1,570ms 10 Apr 2025 648th GolfingSuccess 🇬🇷 877 142 1,813ms 6 Dec 2025 652nd Shanethegamer 🇺🇸 876 51 400ms 15 May 2023 653rd johnnythedoggie 875 72 96ms 13 May 2022 653rd kaascevich 875 72 96ms 8 Jul 2025 653rd madeforlosers 875 72 102ms 26 days ago 656th DialFrost 🇸🇬 875 73 149ms 3 Jun 2025 657th madeforlosers 875 95 415ms 3 days ago 658th c0d3-4-F00d 🇩🇪 874 61 12ms 6 May 2022 658th jackkav 874 61 14ms 26 Jun 2022 658th TechNolaByte 874 61 10ms 6 Jul 2022 658th Heathcorp 🇦🇺 874 61 13ms 17 Jul 2022 658th C0de5mith 🇺🇸 874 61 12ms 3 Aug 2022 658th sebipopa 🇷🇴 874 61 10ms 18 Aug 2022 658th moikaturns 🇬🇧 874 61 12ms 25 Sep 2022 658th FlorianCassayre 🇫🇷 874 61 11ms 27 Sep 2022 658th Mazn3k 874 61 12ms 1 Feb 2023 658th tvcv901 874 61 10ms 22 Mar 2023 658th unfinishedprogram 874 61 11ms 19 Jul 2023 658th snoozingnewt 🇨🇦 874 61 16ms 23 Sep 2023 658th funnyboy-roks 874 61 12ms 9 May 2024 658th bac0id 874 61 13ms 29 Jun 2024 658th FortuiteMan 🇫🇷 874 61 15ms 10 Oct 2024 658th RobertHoeh 874 61 13ms 5 Apr 2025 658th LvLError 874 61 11ms 29 May 2025 658th miles-evan 874 61 12ms 5 Aug 2025 658th alexsave 874 61 12ms 13 Oct 2025 658th ComradeSquirrel 874 61 12ms 6 days ago 678th dokutan 874 62 5ms 28 Apr 2025 679th NerdyMcNerd42 874 64 21ms 26 Oct 2022 679th tpasfieldERAU 874 64 24ms 14 Nov 2022 679th CheeseCake628 🇳🇴 874 64 23ms 6 Jan 2023 679th adamnielson42 🇺🇸 874 64 21ms 25 Apr 2023 679th nathsou 🇫🇷 874 64 21ms 2 Sep 2023 679th zwxzwxzwx21 874 64 24ms 30 Jan 2024 679th steffan-polygolf 874 64 21ms 8 Mar 2024 679th Jacob385 874 64 59ms 4 Apr 2024 679th gallium-gonzollium 874 64 26ms 26 Aug 2024 688th Shanethegamer 🇺🇸 874 66 172ms 4 May 2022 688th scpchicken 🇵🇼 874 66 254ms 5 May 2022 688th sisyphus-ppcg 🇦🇺 874 66 173ms 6 May 2022 688th Natanaelel 🇸🇪 874 66 144ms 15 Jun 2022 688th Z-snails 874 66 254ms 27 Feb 2023 688th Jeremy-Stafford 874 66 258ms 27 Feb 2023 688th alomiF 874 66 287ms 1 Sep 2023 688th btnlq 874 66 145ms 17 Oct 2023 688th Shengxuan-Zhang 874 66 278ms 20 Feb 2026 697th DialFrost 🇸🇬 874 86 40ms 24 Oct 2024 697th stefangimmillaro 874 86 39ms 14 Jan 2025 699th HPWiz 🇳🇿 873 49 239ms 4 May 2022 699th JayXon 🇺🇸 873 49 246ms 5 May 2022 699th Steffan153 🇫🇮 873 49 261ms 10 Dec 2022 699th ovs-code 🇩🇪 873 49 454ms 24 Oct 2023 699th sean-niemann 🇺🇸 873 49 291ms 12 Jul 2024 704th DialFrost 🇸🇬 873 76 82ms 17 Mar 2025 705th c0d3-4-F00d 🇩🇪 873 89 364ms 5 May 2022 705th fkantelberg 873 89 351ms 15 Jul 2023 705th bac0id 873 89 354ms 26 Sep 2023 705th TRexOnGit 873 89 359ms 16 Feb 2024 709th janbehrens 🇩🇪 873 90 467ms 21 Apr 2023 709th Yewzir 🇧🇪 873 90 459ms 22 Apr 2023 709th Ripick 873 90 459ms 27 Nov 2024 709th emgordon154 873 90 441ms 10 Dec 2025 713th inventshah 873 97 61ms 6 May 2022 713th roupiq 🇵🇱 873 97 58ms 22 Nov 2023 713th emgordon154 873 97 59ms 8 Feb 2026 716th MeWhenI 🇻🇦 873 109 346ms 9 Feb 2023 717th kg583 🇺🇸 872 105 13ms 14 Mar 2026 717th Steffan153 🇫🇮 872 105 13ms 24 days ago 719th CaedenHarper 🇨🇦 871 54 1,364ms 27 Sep 2025 719th sean-niemann 🇺🇸 871 54 1,464ms 27 Sep 2025 First Prev 641–720 of 3,738 Next Last