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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 300th JayXon 🇺🇸 928 68 4 Mar 2025 302nd sisyphus-ppcg 🇦🇺 927 50 31 Jan 2023 302nd saito-ta 🇯🇵 927 50 12 Dec 2024 304th JayXon 🇺🇸 927 57 19 Aug 2024 305th ovs-code 🇩🇪 927 60 9 Oct 2023 305th GrayJoKing 🇦🇺 927 60 11 Oct 2023 305th Lydxn 🇨🇦 927 60 11 Oct 2023 305th GolfingSuccess 🇬🇷 927 60 16 Nov 2023 305th Steffan153 🇫🇮 927 60 28 Jan 2024 305th JayXon 🇺🇸 927 60 29 Jan 2024 305th rucin93 🇵🇱 927 60 10 Jul 2024 305th sean-niemann 🇺🇸 927 60 10 Jul 2024 313th Lydxn 🇨🇦 927 70 17 Oct 2022 313th JayXon 🇺🇸 927 70 17 Oct 2022 313th GrayJoKing 🇦🇺 927 70 13 Jul 2024 313th FlyingPenguin223 927 70 4 Oct 2024 317th Steffan153 🇫🇮 926 67 19 Aug 2024 317th JayXon 🇺🇸 926 67 19 Aug 2024 319th roavin 925 84 23 Jun 2022 319th tkr-sh 🇫🇷 925 84 20 Aug 2022 319th Nickmiste 925 84 9 Nov 2022 319th Matgc04 925 84 19 May 2023 319th postie77 925 84 19 May 2023 319th HumanoidCPU 925 84 7 May 2024 319th ertz1ertz 925 84 13 Sep 2024 319th Grabnukebomb 925 84 13 Sep 2024 327th scpchicken 🇵🇼 924 72 4 May 2022 327th sultan 924 72 6 Jun 2022 327th annaproxy 924 72 22 Aug 2022 327th BlankSpruce 924 72 9 Sep 2022 327th ValentinCassayre 924 72 8 Oct 2022 327th commandblockguy 🇺🇸 924 72 3 Nov 2022 327th mathb0y512 924 72 1 Dec 2022 327th NoahBolohan 🇨🇦 924 72 28 Feb 2023 327th neel11235813 924 72 8 Mar 2023 327th Kacarott 🇦🇺 924 72 24 Mar 2023 327th Fracture17 924 72 8 Apr 2023 327th ayushdewan 924 72 7 May 2023 327th PeterTillema 🇳🇱 924 72 17 Oct 2023 327th Glinte 924 72 11 Dec 2023 327th nanatsu8 924 72 11 May 2024 327th thej10n 924 72 12 Jun 2024 327th duckyluuk 🇳🇱 924 72 13 Jun 2024 327th fuzzylojik-golf 🇺🇸 924 72 14 Feb 2025 345th Bubbler-4 923 33 6 May 2022 345th rak1507 🇬🇧 923 33 8 May 2022 345th ngn 🇧🇬 923 33 11 May 2022 348th btnlq 922 59 6 Nov 2022 349th Luca2812 922 127 12 Dec 2022 349th plastic-bottle 922 127 13 Sep 2023 349th h3ra993huskp 🇯🇵 922 127 17 Sep 2023 349th tigerdan2 🇩🇪 922 127 19 Dec 2023 353rd nwellnhof 🇩🇪 921 51 4 May 2022 353rd primo-ppcg 🇹🇭 921 51 6 May 2022 353rd radarek 🇵🇱 921 51 8 May 2022 353rd janlelis 921 51 10 May 2022 353rd Natanaelel 🇸🇪 921 51 2 Jun 2022 353rd sean-niemann 🇺🇸 921 51 26 days ago 359th uiamn 921 58 6 Sep 2022 359th 5quiwyrm 921 58 29 Sep 2022 359th alasdair-greenland 921 58 13 Jan 2023 362nd Lydxn 🇨🇦 921 90 6 May 2022 363rd Lydxn 🇨🇦 921 108 6 May 2022 363rd JayXon 🇺🇸 921 108 9 May 2022 365th ovs-code 🇩🇪 920 67 13 Dec 2022 365th Steffan153 🇫🇮 920 67 18 Dec 2022 365th Lydxn 🇨🇦 920 67 4 Feb 2023 365th sean-niemann 🇺🇸 920 67 26 days ago 369th MichalMarsalek 🇨🇿 919 71 5 May 2022 369th Lydxn 🇨🇦 919 71 7 May 2022 369th GrayJoKing 🇦🇺 919 71 8 May 2022 369th JayXon 🇺🇸 919 71 8 May 2022 369th Steffan153 🇫🇮 919 71 9 Mar 2023 369th Shanethegamer 🇺🇸 919 71 15 May 2023 369th MeWhenI 🇻🇦 919 71 8 Aug 2023 Prev 301–375 of 2,904 Next