Collatz in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Bytes Time Submitted 743rd fuzzylojik-golf 🇺🇸 883 96 63ms 14 Jun 2025 752nd Shanethegamer 🇺🇸 882 51 405ms 15 May 2023 753rd GrayJoKing 🇦🇺 882 60 142ms 24 Oct 2024 754th Shanethegamer 🇺🇸 881 73 90ms 8 May 2025 754th DialFrost 🇸🇬 881 73 100ms 3 Jun 2025 754th edsrzf 🇳🇿 881 73 101ms 4 Jul 2025 757th GrayJoKing 🇦🇺 881 84 53ms 19 Jun 2022 757th primo-ppcg 🇹🇭 881 84 48ms 29 Jun 2022 759th johnnythedoggie 880 72 88ms 13 May 2022 759th kaascevich 880 72 81ms 8 Jul 2025 761st Grrisly 880 74 4ms 25 Mar 2024 762nd dokutan 879 62 5ms 28 Apr 2025 763rd Shanethegamer 🇺🇸 879 142 1,171ms 27 Mar 2025 763rd DialFrost 🇸🇬 879 142 1,122ms 28 Mar 2025 763rd emgordon154 879 142 1,348ms 10 Apr 2025 766th primo-ppcg 🇹🇭 879 193 105ms 14 Aug 2025 767th Shanethegamer 🇺🇸 878 66 189ms 4 May 2022 767th scpchicken 🇵🇼 878 66 328ms 5 May 2022 767th sisyphus-ppcg 🇦🇺 878 66 170ms 6 May 2022 767th Natanaelel 🇸🇪 878 66 159ms 15 Jun 2022 767th Z-snails 878 66 339ms 27 Feb 2023 767th Jeremy-Stafford 878 66 333ms 27 Feb 2023 767th alomiF 878 66 367ms 1 Sep 2023 767th btnlq 878 66 144ms 17 Oct 2023 775th DialFrost 🇸🇬 878 86 49ms 24 Oct 2024 775th stefangimmillaro 878 86 49ms 14 Jan 2025 777th c0d3-4-F00d 🇩🇪 877 61 9ms 6 May 2022 777th jackkav 877 61 10ms 26 Jun 2022 777th TechNolaByte 877 61 10ms 6 Jul 2022 777th Heathcorp 🇦🇺 877 61 10ms 17 Jul 2022 777th C0de5mith 🇺🇸 877 61 10ms 3 Aug 2022 777th sebipopa 🇷🇴 877 61 11ms 18 Aug 2022 777th moikaturns 🇬🇧 877 61 11ms 25 Sep 2022 777th FlorianCassayre 🇫🇷 877 61 11ms 27 Sep 2022 777th Mazn3k 877 61 10ms 1 Feb 2023 777th tvcv901 877 61 10ms 22 Mar 2023 777th unfinishedprogram 877 61 10ms 19 Jul 2023 777th snoozingnewt 🇺🇸 877 61 11ms 23 Sep 2023 777th funnyboy-roks 877 61 9ms 9 May 2024 777th bac0id 877 61 11ms 29 Jun 2024 777th madex 🇩🇪 877 61 11ms 9 Jul 2024 777th FortuiteMan 🇫🇷 877 61 10ms 10 Oct 2024 777th RobertHoeh 877 61 10ms 5 Apr 2025 777th LvLError 877 61 10ms 29 May 2025 777th Lv0Sys 🇵🇱 877 61 10ms 30 May 2025 777th miles-evan 877 61 10ms 5 Aug 2025 777th alexsave 877 61 14ms 13 Oct 2025 798th snoozingnewt 🇺🇸 877 95 341ms 8 Oct 2025 799th nwellnhof 🇩🇪 876 111 262ms 4 May 2022 799th emplv 🇱🇻 876 111 261ms 5 May 2022 799th Shanethegamer 🇺🇸 876 111 277ms 21 Nov 2023 802nd JayXon 🇺🇸 876 158 1,590ms 14 Sep 2025 803rd nwellnhof 🇩🇪 875 53 7ms 4 May 2022 803rd GrayJoKing 🇦🇺 875 53 7ms 6 May 2022 805th GolfingSuccess 🇬🇷 875 57 787ms 29 Aug 2025 806th TobyBoyne 🇬🇧 875 74 28ms 4 May 2022 806th RDShah 875 74 22ms 6 May 2022 806th Indivicivet 875 74 20ms 9 May 2022 806th CedricGebistorf 875 74 18ms 9 May 2022 806th ophact 875 74 22ms 11 May 2022 806th ImpressedByRocks 875 74 22ms 17 May 2022 806th LHuitre 875 74 20ms 2 Jun 2022 806th neihousaigaai 875 74 19ms 8 Jun 2022 806th rowboat1 875 74 21ms 10 Jun 2022 806th inverseLorentz 🇦🇺 875 74 22ms 13 Jun 2022 806th yzhs 🇩🇪 875 74 21ms 16 Jun 2022 806th clementblaudeau 875 74 24ms 29 Jun 2022 806th adoxography 875 74 20ms 13 Jul 2022 806th Attero 🇸🇪 875 74 28ms 20 Jul 2022 806th Heathcorp 🇦🇺 875 74 27ms 27 Jul 2022 806th jfallon1997 875 74 20ms 11 Aug 2022 806th VictorFordham 875 74 24ms 26 Aug 2022 806th georgehulme 875 74 20ms 1 Sep 2022 806th smartiel 875 74 22ms 15 Sep 2022 806th trist224 🇫🇷 875 74 19ms 21 Sep 2022 First Prev 751–825 of 3,453 Next Last