Collatz in Java 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 Trinomial Triangle 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 Smooth Numbers Snake Sphenic Numbers 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 Luau 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 Luau 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 Trinomial Triangle 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 Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 1st JayXon 🇺🇸 1,000 88 15 days ago 2nd DialFrost 🇸🇬 989 89 15 days ago 2nd ovs-code 🇩🇪 989 89 15 days ago 2nd dokutan 989 89 15 days ago 2nd sean-niemann 🇺🇸 989 89 15 days ago 2nd Shanethegamer 🇺🇸 989 89 15 days ago 2nd nwellnhof 🇩🇪 989 89 15 days ago 2nd m-tkach 🇺🇦 989 89 14 days ago 2nd namelessiw 989 89 8 days ago 2nd Yewzir 🇧🇪 989 89 8 days ago 2nd Yax42 🇫🇷 989 89 6 days ago 2nd stefangimmillaro 989 89 4 days ago 2nd CaedenHarper 🇨🇦 989 89 19 hours ago 14th albanian-laundromat 936 94 15 days ago 15th snoozingnewt 🇺🇸 926 95 47 hours ago 16th Liibe 907 97 15 days ago 17th Schmitt-Very-Cool 898 98 13 days ago 18th kmathis22 854 103 9 days ago 19th Lydxn 🇨🇦 704 125 6 May 2022 20th Irratix 🇳🇱 698 126 4 May 2022 20th MeWhenI 🇻🇦 698 126 4 May 2022 20th janbehrens 🇩🇪 698 126 4 May 2022 20th shellbertt 🇨🇦 698 126 4 May 2022 20th inventshah 698 126 4 May 2022 20th ScottHamper 698 126 5 May 2022 20th 5quiwyrm 698 126 4 Sep 2022 20th KrausRaus 🇺🇸 698 126 9 Sep 2022 20th Betuaredead 698 126 5 Jan 2023 20th annaproxy 698 126 7 Jan 2023 20th Jacob385 698 126 4 Mar 2024 20th eMGeeneer 698 126 15 Jun 2024 20th mrondon8 698 126 2 Dec 2024 20th plastic-bottle 698 126 27 Aug 2025 34th Luca2812 693 127 12 Dec 2022 34th h3ra993huskp 🇯🇵 693 127 17 Sep 2023 34th tigerdan2 🇩🇪 693 127 19 Dec 2023 34th Apataras 693 127 16 Jul 2025 38th cbrt-x 682 129 6 May 2022 38th piano-miles 682 129 8 Feb 2023 38th lukashert 682 129 7 Jun 2023 38th bac0id 682 129 29 Jun 2024 38th yoshykai 682 129 27 Mar 2025 43rd bwat2 677 130 5 May 2022 43rd FlorianCassayre 🇫🇷 677 130 20 Sep 2022 43rd Widgitty 677 130 29 May 2023 46th SiestaGuru 672 131 9 Jan 2023 46th HumanoidCPU 672 131 7 May 2024 48th c0d3-4-F00d 🇩🇪 667 132 6 May 2022 48th madeforlosers 667 132 26 Oct 2023 48th Blockyheadman 667 132 1 Nov 2023 48th SpiritAxolotl 🇺🇸 667 132 20 Mar 2024 52nd ravnskjaer 🇩🇰 662 133 11 Sep 2024 52nd 123mjb 662 133 14 days ago 54th althryenix 657 134 25 Jul 2022 54th MrGagnonHPS 657 134 1 Nov 2023 54th noescareno 657 134 31 May 2025 57th lukehewittvandy 652 135 18 Jul 2022 57th OriEy 652 135 27 Apr 2023 57th Maximizer02 652 135 8 Jun 2024 57th 0dyse 652 135 23 Apr 2025 61st crizin 🇰🇷 647 136 9 Sep 2023 61st TheZwierzLF 🇵🇱 647 136 2 Jun 2025 63rd eshilo-draper 642 137 4 Sep 2022 64th azka1368 638 138 23 Nov 2023 65th Smetalo 633 139 25 Aug 2022 65th ToxicP1e 633 139 2 Mar 2023 67th yashima 624 141 19 Oct 2024 67th matas132 624 141 24 days ago 67th katss2 624 141 21 days ago 70th msbranicky 607 145 9 Jan 2024 71st deancureton 603 146 24 Mar 2024 72nd pyuraii 591 149 27 Sep 2022 72nd Chinay-Domitrix 🇺🇸 591 149 29 Mar 2025 74th KyleLashmet 587 150 18 Jul 2022 74th Pyro569 587 150 20 Jul 2023 1–75 of 104 Next Last
