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 110th janbehrens 🇩🇪 951 70 24 Nov 2023 110th namelessiw 951 70 9 Jan 2024 110th mathisfun271 951 70 13 Feb 2024 110th Just4FunCoder 951 70 17 Feb 2024 110th ThijsLuttikhuis 951 70 3 Mar 2024 110th elgan65536 951 70 5 Mar 2024 110th jtaxen 951 70 1 Apr 2024 110th HumanoidCPU 951 70 6 May 2024 110th abc7-12 951 70 6 May 2024 110th ahmetdemirag 🇨🇾 951 70 9 Jun 2024 110th FranklinJiaChen 951 70 4 Jul 2024 110th 5cw 🇺🇸 951 70 13 Jul 2024 110th CaedenHarper 🇨🇦 951 70 3 Aug 2024 110th emgordon154 951 70 5 Aug 2024 110th dokutan 951 70 9 Aug 2024 110th jatloe 951 70 26 Aug 2024 110th lgrandco 951 70 9 Oct 2024 110th snydej 951 70 21 Nov 2024 110th erikji 951 70 4 Feb 2025 110th CutSandstone 951 70 4 Feb 2025 110th Mukundan314 951 70 3 Apr 2025 110th albanian-laundromat 951 70 12 Apr 2025 110th xsot 🇸🇬 951 70 3 May 2025 110th fuzzylojik-golf 🇺🇸 951 70 38 mins ago 175th Lydxn 🇨🇦 951 89 6 May 2022 175th JayXon 🇺🇸 951 89 7 May 2022 175th nwellnhof 🇩🇪 951 89 5 Jun 2022 175th snyderek 🇺🇸 951 89 19 Feb 2025 179th ovs-code 🇩🇪 949 61 5 Aug 2024 180th Lydxn 🇨🇦 948 59 6 May 2022 181st Lydxn 🇨🇦 947 55 16 Jan 2024 181st ovs-code 🇩🇪 947 55 16 Jan 2024 181st Steffan153 🇫🇮 947 55 16 Jan 2024 181st kg583 🇺🇸 947 55 16 Feb 2024 181st Shanethegamer 🇺🇸 947 55 24 Mar 2024 181st pardouin 🇫🇷 947 55 30 Jun 2024 181st JayXon 🇺🇸 947 55 17 Aug 2024 181st sean-niemann 🇺🇸 947 55 24 Jan 2025 189th primo-ppcg 🇹🇭 946 49 5 May 2022 189th Lydxn 🇨🇦 946 49 8 May 2022 191st saito-ta 🇯🇵 943 49 13 May 2022 191st Lydxn 🇨🇦 943 49 28 May 2022 193rd JayXon 🇺🇸 943 88 17 Oct 2022 193rd acotis 943 88 4 days ago 195th lyphyser 942 46 13 Jan 2024 195th AdrienHache 🇫🇷 942 46 9 Apr 2024 197th JayXon 🇺🇸 942 69 17 Oct 2022 197th Lydxn 🇨🇦 942 69 4 Feb 2023 199th canissimia 🇦🇶 940 50 5 May 2022 199th ovs-code 🇩🇪 940 50 7 May 2022 199th sisyphus-ppcg 🇦🇺 940 50 20 Feb 2023 199th Steffan153 🇫🇮 940 50 20 Jul 2024 199th sean-niemann 🇺🇸 940 50 5 days ago 204th namelessiw 940 83 9 Apr 2025 204th dokutan 940 83 9 Apr 2025 204th m-tkach 🇺🇦 940 83 10 Apr 2025 204th DialFrost 🇸🇬 940 83 10 Apr 2025 204th Pecanolith 940 83 19 Apr 2025 204th Tyrant7 940 83 19 Apr 2025 204th Yax42 🇫🇷 940 83 19 Apr 2025 211th canissimia 🇦🇶 939 51 6 May 2022 211th Lydxn 🇨🇦 939 51 6 May 2022 211th primo-ppcg 🇹🇭 939 51 6 May 2022 211th pardouin 🇫🇷 939 51 12 Apr 2025 215th inventshah 938 57 4 May 2022 215th itsh01 938 57 17 May 2022 215th Natanaelel 🇸🇪 938 57 16 Jun 2022 215th Attero 🇸🇪 938 57 3 Aug 2022 215th SirFireball3521 938 57 26 Jan 2023 215th Kacarott 🇦🇺 938 57 24 Mar 2023 215th nathanadams 🇳🇿 938 57 24 Apr 2023 215th hacker112 🇸🇪 938 57 20 Jun 2024 215th thisishowmymindworks 🇳🇴 938 57 28 Jun 2024 215th Salutations45 938 57 18 Nov 2024 225th primo-ppcg 🇹🇭 938 58 13 Nov 2022 Prev 151–225 of 3,088 Next