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 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 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 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 Hilbert Curve Mandelbrot 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 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 Hilbert Curve Mandelbrot 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 297th Steffan153 🇫🇮 928 60 28 Jan 2024 297th JayXon 🇺🇸 928 60 29 Jan 2024 297th rucin93 🇵🇱 928 60 10 Jul 2024 297th sean-niemann 🇺🇸 928 60 10 Jul 2024 305th MeWhenI 🇻🇦 928 68 23 Feb 2023 305th JayXon 🇺🇸 928 68 4 Mar 2025 307th Lydxn 🇨🇦 928 70 17 Oct 2022 307th JayXon 🇺🇸 928 70 17 Oct 2022 307th GrayJoKing 🇦🇺 928 70 13 Jul 2024 307th FlyingPenguin223 928 70 4 Oct 2024 307th jipsong 🇩🇪 928 70 5 Apr 2025 312th sisyphus-ppcg 🇦🇺 927 50 31 Jan 2023 312th saito-ta 🇯🇵 927 50 12 Dec 2024 314th JayXon 🇺🇸 927 57 19 Aug 2024 315th Steffan153 🇫🇮 927 67 19 Aug 2024 315th JayXon 🇺🇸 927 67 19 Aug 2024 317th scpchicken 🇵🇼 925 72 4 May 2022 317th sultan 925 72 6 Jun 2022 317th annaproxy 925 72 22 Aug 2022 317th BlankSpruce 925 72 9 Sep 2022 317th ValentinCassayre 925 72 8 Oct 2022 317th commandblockguy 🇺🇸 925 72 3 Nov 2022 317th mathb0y512 925 72 1 Dec 2022 317th NoahBolohan 🇨🇦 925 72 28 Feb 2023 317th neel11235813 925 72 8 Mar 2023 317th Kacarott 🇦🇺 925 72 24 Mar 2023 317th Fracture17 925 72 8 Apr 2023 317th ayushdewan 925 72 7 May 2023 317th PeterTillema 🇳🇱 925 72 17 Oct 2023 317th Glinte 925 72 11 Dec 2023 317th nanatsu8 925 72 11 May 2024 317th thej10n 925 72 12 Jun 2024 317th duckyluuk 🇳🇱 925 72 13 Jun 2024 317th fuzzylojik-golf 🇺🇸 925 72 14 Feb 2025 317th tobeannouncd 925 72 25 Apr 2025 336th Bubbler-4 923 33 6 May 2022 336th rak1507 🇬🇧 923 33 8 May 2022 336th ngn 🇧🇬 923 33 11 May 2022 336th zacjl 923 33 5 days ago 336th GrayJoKing 🇦🇺 923 33 4 days ago 341st Luca2812 923 127 12 Dec 2022 341st plastic-bottle 923 127 13 Sep 2023 341st h3ra993huskp 🇯🇵 923 127 17 Sep 2023 341st tigerdan2 🇩🇪 923 127 19 Dec 2023 345th btnlq 922 59 6 Nov 2022 346th ovs-code 🇩🇪 922 67 13 Dec 2022 346th Steffan153 🇫🇮 922 67 18 Dec 2022 346th Lydxn 🇨🇦 922 67 4 Feb 2023 346th sean-niemann 🇺🇸 922 67 7 Mar 2025 350th Lydxn 🇨🇦 922 90 6 May 2022 350th acotis 922 90 2 hours ago 352nd Lydxn 🇨🇦 922 108 6 May 2022 352nd JayXon 🇺🇸 922 108 9 May 2022 354th nwellnhof 🇩🇪 921 51 4 May 2022 354th primo-ppcg 🇹🇭 921 51 6 May 2022 354th radarek 🇵🇱 921 51 8 May 2022 354th janlelis 921 51 10 May 2022 354th Natanaelel 🇸🇪 921 51 2 Jun 2022 359th uiamn 921 58 6 Sep 2022 359th 5quiwyrm 921 58 29 Sep 2022 359th alasdair-greenland 921 58 13 Jan 2023 362nd Herbert00709 🇵🇱 920 92 17 Nov 2023 362nd 4QT0R 920 92 23 Nov 2023 362nd ovs-code 🇩🇪 920 92 3 Jun 2024 365th xnor-gate 919 63 20 Jan 2025 366th MichalMarsalek 🇨🇿 919 71 5 May 2022 366th Lydxn 🇨🇦 919 71 7 May 2022 366th GrayJoKing 🇦🇺 919 71 8 May 2022 366th JayXon 🇺🇸 919 71 8 May 2022 366th Steffan153 🇫🇮 919 71 9 Mar 2023 366th Shanethegamer 🇺🇸 919 71 15 May 2023 366th MeWhenI 🇻🇦 919 71 8 Aug 2023 366th sean-niemann 🇺🇸 919 71 9 Jan 2025 374th Steffan153 🇫🇮 919 76 15 May 2023 374th primo-ppcg 🇹🇭 919 76 15 May 2023 Prev 301–375 of 3,081 Next