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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 300th Irratix 🇳🇱 931 126 4 May 2022 300th MeWhenI 🇻🇦 931 126 4 May 2022 300th janbehrens 🇩🇪 931 126 4 May 2022 300th shellbertt 🇨🇦 931 126 4 May 2022 300th inventshah 931 126 4 May 2022 300th m-tkach 🇺🇦 931 126 4 May 2022 300th sean-niemann 🇺🇸 931 126 4 May 2022 300th nwellnhof 🇩🇪 931 126 4 May 2022 300th Shanethegamer 🇺🇸 931 126 4 May 2022 300th ScottHamper 931 126 5 May 2022 300th ovs-code 🇩🇪 931 126 5 May 2022 300th 5quiwyrm 931 126 4 Sep 2022 300th KrausRaus 🇺🇸 931 126 9 Sep 2022 300th Betuaredead 931 126 5 Jan 2023 300th annaproxy 931 126 7 Jan 2023 300th Yewzir 🇧🇪 931 126 12 Feb 2023 300th Jacob385 931 126 4 Mar 2024 300th dokutan 931 126 17 Mar 2024 300th eMGeeneer 931 126 15 Jun 2024 300th mrondon8 931 126 2 Dec 2024 300th plastic-bottle 931 126 9 days ago 322nd GrayJoKing 🇦🇺 930 56 15 Jan 2024 322nd AlephSquirrel 930 56 21 Jan 2024 324th ovs-code 🇩🇪 930 60 9 Oct 2023 324th GrayJoKing 🇦🇺 930 60 11 Oct 2023 324th Lydxn 🇨🇦 930 60 11 Oct 2023 324th GolfingSuccess 🇬🇷 930 60 16 Nov 2023 324th Steffan153 🇫🇮 930 60 28 Jan 2024 324th JayXon 🇺🇸 930 60 29 Jan 2024 324th rucin93 🇵🇱 930 60 10 Jul 2024 324th sean-niemann 🇺🇸 930 60 10 Jul 2024 332nd Natanaelel 🇸🇪 929 28 22 Jul 2022 332nd SirBogman 🇺🇸 929 28 17 Sep 2022 334th Lydxn 🇨🇦 929 70 17 Oct 2022 334th JayXon 🇺🇸 929 70 17 Oct 2022 334th GrayJoKing 🇦🇺 929 70 13 Jul 2024 334th FlyingPenguin223 929 70 4 Oct 2024 334th jipsong 🇩🇪 929 70 5 Apr 2025 339th sisyphus-ppcg 🇦🇺 928 50 31 Jan 2023 339th saito-ta 🇯🇵 928 50 12 Dec 2024 341st Steffan153 🇫🇮 928 67 19 Aug 2024 341st JayXon 🇺🇸 928 67 19 Aug 2024 343rd JayXon 🇺🇸 927 57 19 Aug 2024 344th roavin 927 84 23 Jun 2022 344th tkr-sh 🇫🇷 927 84 20 Aug 2022 344th Nickmiste 927 84 9 Nov 2022 344th Matgc04 927 84 19 May 2023 344th postie77 927 84 19 May 2023 344th ertz1ertz 927 84 13 Sep 2024 344th Grabnukebomb 927 84 13 Sep 2024 344th Shanethegamer 🇺🇸 927 84 9 Apr 2025 344th HumanoidCPU 927 84 10 Apr 2025 344th annaproxy 927 84 11 Apr 2025 344th Re-Adventures 🇮🇳 927 84 15 Apr 2025 344th janbehrens 🇩🇪 927 84 17 Apr 2025 344th fuzzylojik-golf 🇺🇸 927 84 28 May 2025 357th ovs-code 🇩🇪 925 67 13 Dec 2022 357th Steffan153 🇫🇮 925 67 18 Dec 2022 357th Lydxn 🇨🇦 925 67 4 Feb 2023 357th sean-niemann 🇺🇸 925 67 7 Mar 2025 361st scpchicken 🇵🇼 925 72 4 May 2022 361st sultan 925 72 6 Jun 2022 361st annaproxy 925 72 22 Aug 2022 361st BlankSpruce 925 72 9 Sep 2022 361st ValentinCassayre 925 72 8 Oct 2022 361st commandblockguy 🇺🇸 925 72 3 Nov 2022 361st mathb0y512 925 72 1 Dec 2022 361st NoahBolohan 🇨🇦 925 72 28 Feb 2023 361st neel11235813 925 72 8 Mar 2023 361st Kacarott 🇦🇺 925 72 24 Mar 2023 361st Fracture17 925 72 8 Apr 2023 361st ayushdewan 925 72 7 May 2023 361st PeterTillema 🇳🇱 925 72 17 Oct 2023 361st Glinte 925 72 11 Dec 2023 361st nanatsu8 925 72 11 May 2024 Prev 301–375 of 3,316 Next