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 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 Hilbert Curve 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 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 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 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 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 Hilbert Curve 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 605th imelxr 🇮🇱 900 74 17 Aug 2024 605th EnTerr 900 74 25 Aug 2024 605th Mabeloid 🇳🇴 900 74 1 Sep 2024 605th madeforlosers 900 74 5 Sep 2024 605th LostSyntax21 🇬🇧 900 74 10 Sep 2024 605th Deedogg 900 74 11 Sep 2024 605th MassimoParisi 900 74 18 Sep 2024 605th FortuiteMan 900 74 10 Oct 2024 605th lifthrasiir 🇰🇷 900 74 13 Nov 2024 605th agreegious 900 74 17 Nov 2024 605th Stockoh 🇫🇷 900 74 17 Nov 2024 605th Andrey135296 900 74 24 Nov 2024 605th TralfamadorianComedian 900 74 6 Dec 2024 605th bltnppcnt 900 74 3 Jan 2025 605th ZorblaxV 900 74 12 Jan 2025 605th yokasuretsu 900 74 13 Jan 2025 605th Artemis21 🇬🇧 900 74 17 Jan 2025 605th gdpr777 900 74 10 Feb 2025 605th Pyroan 900 74 27 Mar 2025 605th Squimbletin 900 74 19 Apr 2025 605th Kowalskiexe 🇵🇱 900 74 19 Apr 2025 605th Dandandooo 900 74 23 Apr 2025 605th khangtm123 900 74 4 May 2025 605th 40fied4t 900 74 6 May 2025 605th keelimeguy 🇺🇸 900 74 13 May 2025 605th TheZwierzLF 🇵🇱 900 74 21 May 2025 605th kbeat 🇰🇿 900 74 21 May 2025 605th LvLError 900 74 29 May 2025 605th Lv0Sys 🇵🇱 900 74 30 May 2025 605th ffelixm 900 74 3 Jun 2025 605th Flekay 🇩🇪 900 74 19 Jun 2025 605th DoubleUynn 900 74 25 Jun 2025 605th osNiko 🇧🇷 900 74 26 Jul 2025 605th wobblybits 900 74 12 days ago 605th denisfouchard 900 74 3 days ago 605th Emutis 🇱🇹 900 74 2 days ago 605th blaztoma 🇱🇹 900 74 47 hours ago 713th SirBogman 🇺🇸 899 50 5 May 2022 713th nwellnhof 🇩🇪 899 50 3 Jun 2022 713th Lydxn 🇨🇦 899 50 15 Aug 2022 713th Steffan153 🇫🇮 899 50 9 Aug 2024 717th DialFrost 🇸🇬 898 69 15 Jul 2024 718th GrayJoKing 🇦🇺 898 70 6 May 2022 718th saito-ta 🇯🇵 898 70 21 Dec 2023 718th ovs-code 🇩🇪 898 70 17 Feb 2024 718th trinityy-7 898 70 18 days ago 718th KasperKivimaeki 🇫🇮 898 70 17 days ago 723rd DialFrost 🇸🇬 897 29 15 Mar 2025 724th Lydxn 🇨🇦 897 48 5 May 2022 724th pabloferz 897 48 6 Mar 2024 726th nwellnhof 🇩🇪 897 111 4 May 2022 726th emplv 🇱🇻 897 111 5 May 2022 726th Shanethegamer 🇺🇸 897 111 21 Nov 2023 729th Steffan153 🇫🇮 896 59 10 Aug 2024 729th rucin93 🇵🇱 896 59 13 Oct 2024 729th sean-niemann 🇺🇸 896 59 13 Oct 2024 729th lukegustafson 🇺🇸 896 59 24 Oct 2024 733rd Ripick 896 73 8 May 2023 734th GrayJoKing 🇦🇺 896 91 19 Jan 2023 735th Lydxn 🇨🇦 895 72 16 Jul 2023 736th edsrzf 🇳🇿 895 78 26 Oct 2024 737th SiestaGuru 895 131 9 Jan 2023 737th HumanoidCPU 895 131 7 May 2024 739th JayXon 🇺🇸 895 150 8 Sep 2023 740th MichalMarsalek 🇨🇿 894 87 5 May 2022 740th Kloppermand 🇩🇰 894 87 7 Oct 2022 740th bwat2 894 87 6 Apr 2023 743rd ovs-code 🇩🇪 894 89 24 Jul 2024 743rd jipsong 🇩🇪 894 89 7 Apr 2025 745th oeb25 893 93 16 May 2022 745th snobee 🇨🇦 893 93 8 Dec 2022 745th logvp 893 93 2 Jan 2024 745th elgan65536 893 93 5 Mar 2024 745th smartiel 893 93 12 Aug 2024 745th trist224 🇫🇷 893 93 12 Aug 2024 Prev 676–750 of 3,280 Next
