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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 596th MateuszPietrzak 🇵🇱 881 96 55ms 18 Nov 2023 596th kkoenig 881 96 54ms 21 Dec 2023 596th BlankSpruce 881 96 54ms 20 Aug 2024 596th fuzzylojik-golf 🇺🇸 881 96 55ms 14 Jun 2025 605th emplv 🇱🇻 881 110 261ms 5 May 2022 605th Shanethegamer 🇺🇸 881 110 263ms 21 Nov 2023 605th edsrzf 🇳🇿 881 110 247ms 28 Nov 2024 605th targrik 881 110 248ms 30 Jun 2025 609th m-tkach 🇺🇦 881 112 69ms 22 Jun 2025 610th sisyphus-ppcg 🇦🇺 880 40 369ms 31 Jan 2023 610th sean-niemann 🇺🇸 880 40 365ms 8 Mar 2025 612th GrayJoKing 🇦🇺 879 72 430ms 31 May 2022 612th Shanethegamer 🇺🇸 879 72 414ms 1 Jun 2022 612th Steffan153 🇫🇮 879 72 434ms 10 Dec 2022 615th Shanethegamer 🇺🇸 879 81 19ms 19 Dec 2023 615th emgordon154 879 81 26ms 29 Jul 2025 617th ovs-code 🇩🇪 878 73 300ms 22 Jul 2023 618th steffan-polygolf 878 74 130ms 14 Feb 2024 619th primo-ppcg 🇹🇭 878 193 103ms 14 Aug 2025 620th Shanethegamer 🇺🇸 877 142 765ms 27 Mar 2025 620th DialFrost 🇸🇬 877 142 512ms 28 Mar 2025 620th emgordon154 877 142 481ms 10 Apr 2025 623rd mousetail 🇳🇱 876 40 73ms 29 Aug 2025 624th Shanethegamer 🇺🇸 875 51 420ms 15 May 2023 625th Grrisly 875 74 4ms 25 Mar 2024 626th GrayJoKing 🇦🇺 875 84 53ms 19 Jun 2022 626th primo-ppcg 🇹🇭 875 84 48ms 29 Jun 2022 628th JayXon 🇺🇸 875 157 1,590ms 14 Sep 2025 629th rucin93 🇵🇱 874 57 139ms 4 Aug 2024 629th dokutan 874 57 129ms 9 Aug 2024 631st c0d3-4-F00d 🇩🇪 874 61 11ms 6 May 2022 631st jackkav 874 61 13ms 26 Jun 2022 631st TechNolaByte 874 61 12ms 6 Jul 2022 631st Heathcorp 🇦🇺 874 61 9ms 17 Jul 2022 631st C0de5mith 🇺🇸 874 61 10ms 3 Aug 2022 631st sebipopa 🇷🇴 874 61 10ms 18 Aug 2022 631st moikaturns 🇬🇧 874 61 11ms 25 Sep 2022 631st FlorianCassayre 🇫🇷 874 61 14ms 27 Sep 2022 631st Mazn3k 874 61 9ms 1 Feb 2023 631st tvcv901 874 61 10ms 22 Mar 2023 631st unfinishedprogram 874 61 9ms 19 Jul 2023 631st snoozingnewt 🇺🇸 874 61 14ms 23 Sep 2023 631st funnyboy-roks 874 61 10ms 9 May 2024 631st bac0id 874 61 10ms 29 Jun 2024 631st madex 🇩🇪 874 61 11ms 9 Jul 2024 631st FortuiteMan 🇫🇷 874 61 12ms 10 Oct 2024 631st RobertHoeh 874 61 12ms 5 Apr 2025 631st LvLError 874 61 12ms 29 May 2025 631st Lv0Sys 🇵🇱 874 61 10ms 30 May 2025 631st miles-evan 874 61 10ms 5 Aug 2025 631st alexsave 874 61 11ms 13 Oct 2025 652nd NerdyMcNerd42 873 64 19ms 26 Oct 2022 652nd tpasfieldERAU 873 64 23ms 14 Nov 2022 652nd CheeseCake628 🇳🇴 873 64 23ms 6 Jan 2023 652nd adamnielson42 🇺🇸 873 64 23ms 25 Apr 2023 652nd nathsou 🇫🇷 873 64 19ms 2 Sep 2023 652nd zwxzwxzwx21 873 64 23ms 30 Jan 2024 652nd steffan-polygolf 873 64 26ms 8 Mar 2024 652nd Jacob385 873 64 57ms 4 Apr 2024 652nd gallium-gonzollium 873 64 25ms 26 Aug 2024 661st Shanethegamer 🇺🇸 873 66 189ms 4 May 2022 661st scpchicken 🇵🇼 873 66 328ms 5 May 2022 661st sisyphus-ppcg 🇦🇺 873 66 170ms 6 May 2022 661st Natanaelel 🇸🇪 873 66 159ms 15 Jun 2022 661st Z-snails 873 66 339ms 27 Feb 2023 661st Jeremy-Stafford 873 66 333ms 27 Feb 2023 661st alomiF 873 66 367ms 1 Sep 2023 661st btnlq 873 66 144ms 17 Oct 2023 669th johnnythedoggie 873 72 88ms 13 May 2022 669th kaascevich 873 72 81ms 8 Jul 2025 671st DialFrost 🇸🇬 873 73 100ms 3 Jun 2025 672nd nwellnhof 🇩🇪 873 111 260ms 4 May 2022 672nd stefangimmillaro 873 111 259ms 26 Sep 2023 672nd kkoenig 873 111 256ms 4 Jan 2024 675th HPWiz 🇳🇿 872 49 241ms 4 May 2022 First Prev 601–675 of 3,461 Next Last