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 Dragon Curve 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 Dragon Curve 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 sisyphus-ppcg 🇦🇺 880 40 387ms 31 Jan 2023 641st sean-niemann 🇺🇸 880 40 385ms 8 Mar 2025 643rd GrayJoKing 🇦🇺 880 72 433ms 31 May 2022 643rd Shanethegamer 🇺🇸 880 72 437ms 1 Jun 2022 643rd Steffan153 🇫🇮 880 72 442ms 10 Dec 2022 646th steffan-polygolf 880 74 131ms 14 Feb 2024 646th prestosilver 🇺🇸 880 74 178ms 18 Dec 2025 648th Steffan153 🇫🇮 879 75 2,676ms 22 days ago 649th GrayJoKing 🇦🇺 879 84 35ms 19 Jun 2022 649th primo-ppcg 🇹🇭 879 84 36ms 29 Jun 2022 649th MeWhenI 🇻🇦 879 84 38ms 30 Dec 2025 652nd emgordon154 879 96 117ms 3 Dec 2025 653rd Shanethegamer 🇺🇸 879 142 1,207ms 27 Mar 2025 653rd DialFrost 🇸🇬 879 142 1,201ms 28 Mar 2025 653rd emgordon154 879 142 1,229ms 10 Apr 2025 653rd GolfingSuccess 🇬🇷 879 142 1,214ms 6 Dec 2025 657th mousetail 🇳🇱 877 40 66ms 29 Aug 2025 658th DialFrost 🇸🇬 876 73 149ms 3 Jun 2025 659th Shanethegamer 🇺🇸 875 51 474ms 15 May 2023 660th GrayJoKing 🇦🇺 875 74 66ms 1 Nov 2023 661st madeforlosers 875 95 450ms 16 days ago 662nd kg583 🇺🇸 875 105 11ms 14 Mar 2026 662nd Steffan153 🇫🇮 875 105 12ms 19 Mar 2026 664th c0d3-4-F00d 🇩🇪 874 61 12ms 6 May 2022 664th jackkav 874 61 11ms 26 Jun 2022 664th TechNolaByte 874 61 12ms 6 Jul 2022 664th Heathcorp 🇦🇺 874 61 12ms 17 Jul 2022 664th C0de5mith 🇺🇸 874 61 13ms 3 Aug 2022 664th sebipopa 🇷🇴 874 61 11ms 18 Aug 2022 664th moikaturns 🇬🇧 874 61 13ms 25 Sep 2022 664th FlorianCassayre 🇫🇷 874 61 12ms 27 Sep 2022 664th Mazn3k 874 61 13ms 1 Feb 2023 664th tvcv901 874 61 12ms 22 Mar 2023 664th unfinishedprogram 874 61 12ms 19 Jul 2023 664th snoozingnewt 🇨🇦 874 61 11ms 23 Sep 2023 664th funnyboy-roks 874 61 12ms 9 May 2024 664th bac0id 874 61 15ms 29 Jun 2024 664th FortuiteMan 🇫🇷 874 61 12ms 10 Oct 2024 664th RobertHoeh 874 61 13ms 5 Apr 2025 664th LvLError 874 61 11ms 29 May 2025 664th miles-evan 874 61 22ms 5 Aug 2025 664th alexsave 874 61 11ms 13 Oct 2025 664th ComradeSquirrel 874 61 11ms 20 days ago 684th NerdyMcNerd42 874 64 21ms 26 Oct 2022 684th tpasfieldERAU 874 64 24ms 14 Nov 2022 684th CheeseCake628 🇳🇴 874 64 23ms 6 Jan 2023 684th adamnielson42 🇺🇸 874 64 21ms 25 Apr 2023 684th nathsou 🇫🇷 874 64 21ms 2 Sep 2023 684th zwxzwxzwx21 874 64 24ms 30 Jan 2024 684th steffan-polygolf 874 64 21ms 8 Mar 2024 684th Jacob385 874 64 59ms 4 Apr 2024 684th gallium-gonzollium 874 64 26ms 26 Aug 2024 693rd johnnythedoggie 874 72 102ms 13 May 2022 693rd kaascevich 874 72 104ms 8 Jul 2025 693rd madeforlosers 874 72 97ms 17 Mar 2026 696th HPWiz 🇳🇿 873 49 239ms 4 May 2022 696th JayXon 🇺🇸 873 49 246ms 5 May 2022 696th Steffan153 🇫🇮 873 49 261ms 10 Dec 2022 696th ovs-code 🇩🇪 873 49 426ms 24 Oct 2023 696th sean-niemann 🇺🇸 873 49 280ms 12 Jul 2024 701st dokutan 873 62 5ms 28 Apr 2025 702nd Shanethegamer 🇺🇸 873 66 172ms 4 May 2022 702nd scpchicken 🇵🇼 873 66 254ms 5 May 2022 702nd sisyphus-ppcg 🇦🇺 873 66 173ms 6 May 2022 702nd Natanaelel 🇸🇪 873 66 144ms 15 Jun 2022 702nd Z-snails 873 66 254ms 27 Feb 2023 702nd Jeremy-Stafford 873 66 258ms 27 Feb 2023 702nd alomiF 873 66 287ms 1 Sep 2023 702nd btnlq 873 66 145ms 17 Oct 2023 702nd Shengxuan-Zhang 873 66 278ms 20 Feb 2026 711th DialFrost 🇸🇬 873 86 40ms 24 Oct 2024 711th stefangimmillaro 873 86 39ms 14 Jan 2025 713th c0d3-4-F00d 🇩🇪 873 89 407ms 5 May 2022 713th fkantelberg 873 89 467ms 15 Jul 2023 713th bac0id 873 89 495ms 26 Sep 2023 713th TRexOnGit 873 89 387ms 16 Feb 2024 717th janbehrens 🇩🇪 873 90 467ms 21 Apr 2023 717th Yewzir 🇧🇪 873 90 459ms 22 Apr 2023 717th Ripick 873 90 459ms 27 Nov 2024 717th emgordon154 873 90 441ms 10 Dec 2025 First Prev 641–720 of 3,753 Next Last