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 🇦🇺 880 72 433ms 31 May 2022 641st Shanethegamer 🇺🇸 880 72 437ms 1 Jun 2022 641st Steffan153 🇫🇮 880 72 442ms 10 Dec 2022 644th steffan-polygolf 880 74 132ms 14 Feb 2024 644th prestosilver 🇺🇸 880 74 134ms 18 Dec 2025 646th Steffan153 🇫🇮 879 75 2,579ms 19 days ago 647th GrayJoKing 🇦🇺 879 84 35ms 19 Jun 2022 647th primo-ppcg 🇹🇭 879 84 36ms 29 Jun 2022 647th MeWhenI 🇻🇦 879 84 38ms 30 Dec 2025 650th emgordon154 879 96 117ms 3 Dec 2025 651st Shanethegamer 🇺🇸 879 142 1,212ms 27 Mar 2025 651st DialFrost 🇸🇬 879 142 1,215ms 28 Mar 2025 651st emgordon154 879 142 1,234ms 10 Apr 2025 651st GolfingSuccess 🇬🇷 879 142 1,207ms 6 Dec 2025 655th mousetail 🇳🇱 877 40 66ms 29 Aug 2025 656th DialFrost 🇸🇬 876 73 149ms 3 Jun 2025 657th Shanethegamer 🇺🇸 875 51 474ms 15 May 2023 658th GrayJoKing 🇦🇺 875 74 66ms 1 Nov 2023 659th madeforlosers 875 95 415ms 13 days ago 660th kg583 🇺🇸 875 105 11ms 14 Mar 2026 660th Steffan153 🇫🇮 875 105 12ms 19 Mar 2026 662nd c0d3-4-F00d 🇩🇪 874 61 19ms 6 May 2022 662nd jackkav 874 61 12ms 26 Jun 2022 662nd TechNolaByte 874 61 14ms 6 Jul 2022 662nd Heathcorp 🇦🇺 874 61 14ms 17 Jul 2022 662nd C0de5mith 🇺🇸 874 61 12ms 3 Aug 2022 662nd sebipopa 🇷🇴 874 61 14ms 18 Aug 2022 662nd moikaturns 🇬🇧 874 61 11ms 25 Sep 2022 662nd FlorianCassayre 🇫🇷 874 61 12ms 27 Sep 2022 662nd Mazn3k 874 61 12ms 1 Feb 2023 662nd tvcv901 874 61 16ms 22 Mar 2023 662nd unfinishedprogram 874 61 16ms 19 Jul 2023 662nd snoozingnewt 🇨🇦 874 61 11ms 23 Sep 2023 662nd funnyboy-roks 874 61 11ms 9 May 2024 662nd bac0id 874 61 11ms 29 Jun 2024 662nd FortuiteMan 🇫🇷 874 61 11ms 10 Oct 2024 662nd RobertHoeh 874 61 11ms 5 Apr 2025 662nd LvLError 874 61 12ms 29 May 2025 662nd miles-evan 874 61 11ms 5 Aug 2025 662nd alexsave 874 61 11ms 13 Oct 2025 662nd ComradeSquirrel 874 61 11ms 16 days ago 682nd NerdyMcNerd42 874 64 21ms 26 Oct 2022 682nd tpasfieldERAU 874 64 24ms 14 Nov 2022 682nd CheeseCake628 🇳🇴 874 64 23ms 6 Jan 2023 682nd adamnielson42 🇺🇸 874 64 21ms 25 Apr 2023 682nd nathsou 🇫🇷 874 64 21ms 2 Sep 2023 682nd zwxzwxzwx21 874 64 24ms 30 Jan 2024 682nd steffan-polygolf 874 64 21ms 8 Mar 2024 682nd Jacob385 874 64 59ms 4 Apr 2024 682nd gallium-gonzollium 874 64 26ms 26 Aug 2024 691st johnnythedoggie 874 72 102ms 13 May 2022 691st kaascevich 874 72 104ms 8 Jul 2025 691st madeforlosers 874 72 97ms 17 Mar 2026 694th HPWiz 🇳🇿 873 49 239ms 4 May 2022 694th JayXon 🇺🇸 873 49 246ms 5 May 2022 694th Steffan153 🇫🇮 873 49 261ms 10 Dec 2022 694th ovs-code 🇩🇪 873 49 426ms 24 Oct 2023 694th sean-niemann 🇺🇸 873 49 280ms 12 Jul 2024 699th dokutan 873 62 5ms 28 Apr 2025 700th Shanethegamer 🇺🇸 873 66 172ms 4 May 2022 700th scpchicken 🇵🇼 873 66 254ms 5 May 2022 700th sisyphus-ppcg 🇦🇺 873 66 173ms 6 May 2022 700th Natanaelel 🇸🇪 873 66 144ms 15 Jun 2022 700th Z-snails 873 66 254ms 27 Feb 2023 700th Jeremy-Stafford 873 66 258ms 27 Feb 2023 700th alomiF 873 66 287ms 1 Sep 2023 700th btnlq 873 66 145ms 17 Oct 2023 700th Shengxuan-Zhang 873 66 278ms 20 Feb 2026 709th DialFrost 🇸🇬 873 86 40ms 24 Oct 2024 709th stefangimmillaro 873 86 39ms 14 Jan 2025 711th c0d3-4-F00d 🇩🇪 873 89 407ms 5 May 2022 711th fkantelberg 873 89 467ms 15 Jul 2023 711th bac0id 873 89 495ms 26 Sep 2023 711th TRexOnGit 873 89 387ms 16 Feb 2024 715th janbehrens 🇩🇪 873 90 467ms 21 Apr 2023 715th Yewzir 🇧🇪 873 90 459ms 22 Apr 2023 715th Ripick 873 90 459ms 27 Nov 2024 715th emgordon154 873 90 441ms 10 Dec 2025 719th inventshah 873 97 58ms 6 May 2022 719th emgordon154 873 97 60ms 8 Feb 2026 First Prev 641–720 of 3,746 Next Last