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 751st JayXon 🇺🇸 895 150 8 Sep 2023 752nd ovs-code 🇩🇪 894 89 24 Jul 2024 752nd jipsong 🇩🇪 894 89 7 Apr 2025 754th oeb25 893 93 16 May 2022 754th snobee 🇨🇦 893 93 8 Dec 2022 754th logvp 893 93 2 Jan 2024 754th elgan65536 893 93 5 Mar 2024 754th smartiel 893 93 12 Aug 2024 754th trist224 🇫🇷 893 93 12 Aug 2024 754th nullie 893 93 19 Dec 2024 754th lolgeny 893 93 22 Feb 2025 762nd Steffan153 🇫🇮 892 52 31 Dec 2022 763rd Shanethegamer 🇺🇸 892 61 31 Oct 2022 763rd MeWhenI 🇻🇦 892 61 4 Nov 2022 765th stefangimmillaro 892 71 2 Oct 2022 765th Steffan153 🇫🇮 892 71 23 Feb 2023 765th Shanethegamer 🇺🇸 892 71 16 May 2023 765th sean-niemann 🇺🇸 892 71 12 Jul 2024 769th GolfingSuccess 🇬🇷 892 95 5 May 2022 769th Alex-x90 🇺🇸 892 95 4 Dec 2022 769th Mandrzejy 🇵🇱 892 95 22 Mar 2024 772nd KatieLG 🇬🇧 891 60 4 May 2022 772nd ScottHamper 891 60 5 May 2022 772nd Re-Adventures 🇮🇳 891 60 5 May 2022 772nd 0x24a537r9 891 60 29 Jul 2022 772nd stefangabos 🇷🇴 891 60 19 Aug 2022 772nd eranws 891 60 10 Sep 2022 772nd GeorgeStechman 🇬🇧 891 60 26 Sep 2022 772nd BloodStormKnight 891 60 15 Oct 2022 772nd dzshn 891 60 3 Dec 2022 772nd biocommando 🇫🇮 891 60 20 Dec 2022 772nd Betuaredead 891 60 5 Jan 2023 772nd piano-miles 891 60 16 Jan 2023 772nd Yewzir 🇧🇪 891 60 12 Feb 2023 772nd shellbertt 🇨🇦 891 60 26 Feb 2023 772nd zakariamouhid 891 60 20 May 2023 772nd raphaelimahorn 891 60 23 Aug 2023 772nd jbt 891 60 25 Dec 2023 772nd olleicua 🇺🇸 891 60 15 Feb 2024 772nd HumanoidCPU 891 60 3 May 2024 772nd dokutan 891 60 13 Aug 2024 772nd LostSyntax21 🇬🇧 891 60 10 Sep 2024 772nd xyangst 891 60 28 Sep 2024 772nd a6166231 🇨🇳 891 60 15 May 2025 772nd Protothor 891 60 8 Jul 2025 772nd SebassNoob 891 60 5 Aug 2025 772nd Yax42 🇫🇷 891 60 4 days ago 798th lynn 891 65 5 May 2022 798th GrayJoKing 🇦🇺 891 65 5 May 2022 798th Sakisan 🇧🇪 891 65 6 May 2022 798th JayXon 🇺🇸 891 65 17 Oct 2022 798th Steffan153 🇫🇮 891 65 12 Nov 2022 798th tobeannouncd 891 65 25 Apr 2025 798th sean-niemann 🇺🇸 891 65 9 Jun 2025 805th sean-niemann 🇺🇸 891 73 12 Jul 2024 806th canissimia 🇦🇶 891 110 20 Feb 2023 807th stefangimmillaro 891 112 26 Sep 2023 807th kkoenig 891 112 4 Jan 2024 809th JayXon 🇺🇸 890 74 14 Nov 2024 810th DialFrost 🇸🇬 890 95 10 Dec 2024 811th primo-ppcg 🇹🇭 889 52 5 May 2022 811th dvargas46 🇺🇸 889 52 22 Dec 2022 813th GrayJoKing 🇦🇺 889 77 13 Sep 2024 814th m-tkach 🇺🇦 889 117 7 May 2022 814th Lydxn 🇨🇦 889 117 7 May 2022 816th c0d3-4-F00d 🇩🇪 889 132 6 May 2022 816th madeforlosers 889 132 26 Oct 2023 816th Blockyheadman 889 132 1 Nov 2023 816th SpiritAxolotl 🇺🇸 889 132 20 Mar 2024 820th ovs-code 🇩🇪 889 151 9 Sep 2023 820th Yewzir 🇧🇪 889 151 21 May 2024 822nd mousetail 🇳🇱 888 41 11 days ago 823rd martinnorling 🇸🇪 888 75 5 May 2022 823rd Trunksistor 🇫🇷 888 75 9 May 2022 823rd bbakersmith 888 75 28 Jun 2022 Prev 751–825 of 3,322 Next