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 GrayJoKing 🇦🇺 878 84 35ms 19 Jun 2022 641st primo-ppcg 🇹🇭 878 84 36ms 29 Jun 2022 641st MeWhenI 🇻🇦 878 84 38ms 30 Dec 2025 644th emgordon154 877 96 117ms 3 Dec 2025 645th Shanethegamer 🇺🇸 877 142 1,441ms 27 Mar 2025 645th DialFrost 🇸🇬 877 142 1,421ms 28 Mar 2025 645th emgordon154 877 142 1,443ms 10 Apr 2025 645th GolfingSuccess 🇬🇷 877 142 1,431ms 6 Dec 2025 649th JayXon 🇺🇸 877 157 1,772ms 14 Sep 2025 650th mousetail 🇳🇱 876 40 66ms 29 Aug 2025 651st Shanethegamer 🇺🇸 875 51 472ms 15 May 2023 652nd c0d3-4-F00d 🇩🇪 874 61 11ms 6 May 2022 652nd jackkav 874 61 10ms 26 Jun 2022 652nd TechNolaByte 874 61 10ms 6 Jul 2022 652nd Heathcorp 🇦🇺 874 61 11ms 17 Jul 2022 652nd C0de5mith 🇺🇸 874 61 11ms 3 Aug 2022 652nd sebipopa 🇷🇴 874 61 11ms 18 Aug 2022 652nd moikaturns 🇬🇧 874 61 10ms 25 Sep 2022 652nd FlorianCassayre 🇫🇷 874 61 12ms 27 Sep 2022 652nd Mazn3k 874 61 11ms 1 Feb 2023 652nd tvcv901 874 61 11ms 22 Mar 2023 652nd unfinishedprogram 874 61 11ms 19 Jul 2023 652nd snoozingnewt 🇨🇦 874 61 11ms 23 Sep 2023 652nd funnyboy-roks 874 61 11ms 9 May 2024 652nd bac0id 874 61 10ms 29 Jun 2024 652nd FortuiteMan 🇫🇷 874 61 11ms 10 Oct 2024 652nd RobertHoeh 874 61 10ms 5 Apr 2025 652nd LvLError 874 61 11ms 29 May 2025 652nd miles-evan 874 61 10ms 5 Aug 2025 652nd alexsave 874 61 10ms 13 Oct 2025 652nd jusaka 874 61 12ms 3 days ago 672nd NerdyMcNerd42 874 64 20ms 26 Oct 2022 672nd tpasfieldERAU 874 64 23ms 14 Nov 2022 672nd CheeseCake628 🇳🇴 874 64 23ms 6 Jan 2023 672nd adamnielson42 🇺🇸 874 64 19ms 25 Apr 2023 672nd nathsou 🇫🇷 874 64 21ms 2 Sep 2023 672nd zwxzwxzwx21 874 64 24ms 30 Jan 2024 672nd steffan-polygolf 874 64 21ms 8 Mar 2024 672nd Jacob385 874 64 59ms 4 Apr 2024 672nd gallium-gonzollium 874 64 28ms 26 Aug 2024 681st dokutan 873 62 5ms 28 Apr 2025 682nd Shanethegamer 🇺🇸 873 66 172ms 4 May 2022 682nd scpchicken 🇵🇼 873 66 254ms 5 May 2022 682nd sisyphus-ppcg 🇦🇺 873 66 173ms 6 May 2022 682nd Natanaelel 🇸🇪 873 66 144ms 15 Jun 2022 682nd Z-snails 873 66 254ms 27 Feb 2023 682nd Jeremy-Stafford 873 66 258ms 27 Feb 2023 682nd alomiF 873 66 293ms 1 Sep 2023 682nd btnlq 873 66 145ms 17 Oct 2023 682nd Shengxuan-Zhang 873 66 278ms 20 Feb 2026 691st johnnythedoggie 873 72 96ms 13 May 2022 691st kaascevich 873 72 96ms 8 Jul 2025 691st madeforlosers 873 72 102ms 19 days ago 694th DialFrost 🇸🇬 873 73 149ms 3 Jun 2025 695th c0d3-4-F00d 🇩🇪 873 89 364ms 5 May 2022 695th fkantelberg 873 89 374ms 15 Jul 2023 695th bac0id 873 89 354ms 26 Sep 2023 695th TRexOnGit 873 89 364ms 16 Feb 2024 699th inventshah 873 97 61ms 6 May 2022 699th roupiq 🇵🇱 873 97 60ms 22 Nov 2023 699th emgordon154 873 97 59ms 8 Feb 2026 702nd HPWiz 🇳🇿 872 49 265ms 4 May 2022 702nd JayXon 🇺🇸 872 49 250ms 5 May 2022 702nd Steffan153 🇫🇮 872 49 256ms 10 Dec 2022 702nd ovs-code 🇩🇪 872 49 403ms 24 Oct 2023 702nd sean-niemann 🇺🇸 872 49 268ms 12 Jul 2024 707th DialFrost 🇸🇬 872 76 82ms 17 Mar 2025 708th DialFrost 🇸🇬 872 86 40ms 24 Oct 2024 708th stefangimmillaro 872 86 39ms 14 Jan 2025 710th janbehrens 🇩🇪 872 90 467ms 21 Apr 2023 710th Yewzir 🇧🇪 872 90 459ms 22 Apr 2023 710th Ripick 872 90 459ms 27 Nov 2024 710th emgordon154 872 90 476ms 10 Dec 2025 714th MeWhenI 🇻🇦 872 109 286ms 9 Feb 2023 715th GolfingSuccess 🇬🇷 870 71 2ms 5 May 2022 715th emplv 🇱🇻 870 71 2ms 5 May 2022 715th JayXon 🇺🇸 870 71 2ms 7 May 2022 715th m-tkach 🇺🇦 870 71 2ms 15 May 2022 715th nwellnhof 🇩🇪 870 71 2ms 5 Jun 2022 715th Irratix 🇳🇱 870 71 2ms 13 Jun 2022 First Prev 641–720 of 3,641 Next Last