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 Smooth 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 586th Squimbletin 901 74 19 Apr 2025 586th Kowalskiexe 🇵🇱 901 74 19 Apr 2025 586th Dandandooo 901 74 23 Apr 2025 586th khangtm123 901 74 4 May 2025 586th 40fied4t 901 74 6 May 2025 586th keelimeguy 🇺🇸 901 74 13 May 2025 586th TheZwierzLF 🇵🇱 901 74 21 May 2025 586th kbeat 🇰🇿 901 74 21 May 2025 586th LvLError 901 74 29 May 2025 586th Lv0Sys 🇵🇱 901 74 30 May 2025 586th ffelixm 901 74 3 Jun 2025 586th Flekay 🇩🇪 901 74 19 Jun 2025 586th DoubleUynn 901 74 25 Jun 2025 586th osNiko 🇧🇷 901 74 26 Jul 2025 586th wobblybits 901 74 13 Aug 2025 586th denisfouchard 901 74 23 Aug 2025 586th Emutis 🇱🇹 901 74 23 Aug 2025 586th blaztoma 🇱🇹 901 74 24 Aug 2025 586th jatax-ikea 901 74 16 days ago 586th edsrzf 🇳🇿 901 74 15 days ago 586th 1024An 🇮🇳 901 74 14 days ago 586th pauljoohyunkim 901 74 14 hours ago 698th SirBogman 🇺🇸 899 50 5 May 2022 698th nwellnhof 🇩🇪 899 50 3 Jun 2022 698th Lydxn 🇨🇦 899 50 15 Aug 2022 698th Steffan153 🇫🇮 899 50 9 Aug 2024 702nd DialFrost 🇸🇬 899 69 15 Jul 2024 703rd nwellnhof 🇩🇪 899 111 4 May 2022 703rd emplv 🇱🇻 899 111 5 May 2022 703rd Shanethegamer 🇺🇸 899 111 21 Nov 2023 706th GrayJoKing 🇦🇺 898 70 6 May 2022 706th saito-ta 🇯🇵 898 70 21 Dec 2023 706th ovs-code 🇩🇪 898 70 17 Feb 2024 706th trinityy-7 898 70 7 Aug 2025 706th KasperKivimaeki 🇫🇮 898 70 8 Aug 2025 711th Lydxn 🇨🇦 898 72 16 Jul 2023 712th DialFrost 🇸🇬 897 29 15 Mar 2025 713th Lydxn 🇨🇦 897 48 5 May 2022 713th pabloferz 897 48 6 Mar 2024 715th Steffan153 🇫🇮 896 59 10 Aug 2024 715th rucin93 🇵🇱 896 59 13 Oct 2024 715th sean-niemann 🇺🇸 896 59 13 Oct 2024 715th lukegustafson 🇺🇸 896 59 24 Oct 2024 719th Ripick 896 73 8 May 2023 720th edsrzf 🇳🇿 896 78 26 Oct 2024 721st GrayJoKing 🇦🇺 896 91 19 Jan 2023 722nd MichalMarsalek 🇨🇿 895 87 5 May 2022 722nd Kloppermand 🇩🇰 895 87 7 Oct 2022 722nd bwat2 895 87 6 Apr 2023 725th ovs-code 🇩🇪 894 89 24 Jul 2024 725th jipsong 🇩🇪 894 89 7 Apr 2025 727th oeb25 894 93 16 May 2022 727th snobee 🇨🇦 894 93 8 Dec 2022 727th logvp 894 93 2 Jan 2024 727th elgan65536 894 93 5 Mar 2024 727th smartiel 894 93 12 Aug 2024 727th trist224 🇫🇷 894 93 12 Aug 2024 727th nullie 894 93 19 Dec 2024 727th lolgeny 894 93 22 Feb 2025 735th Shanethegamer 🇺🇸 893 61 31 Oct 2022 735th MeWhenI 🇻🇦 893 61 4 Nov 2022 737th Steffan153 🇫🇮 892 52 31 Dec 2022 738th stefangimmillaro 892 71 2 Oct 2022 738th Steffan153 🇫🇮 892 71 23 Feb 2023 738th Shanethegamer 🇺🇸 892 71 16 May 2023 738th sean-niemann 🇺🇸 892 71 12 Jul 2024 742nd GolfingSuccess 🇬🇷 892 95 5 May 2022 742nd Alex-x90 🇺🇸 892 95 4 Dec 2022 742nd Mandrzejy 🇵🇱 892 95 22 Mar 2024 745th KatieLG 🇬🇧 891 60 4 May 2022 745th ScottHamper 891 60 5 May 2022 745th Re-Adventures 🇮🇳 891 60 5 May 2022 745th 0x24a537r9 891 60 29 Jul 2022 745th stefangabos 🇷🇴 891 60 19 Aug 2022 745th eranws 891 60 10 Sep 2022 Prev 676–750 of 3,341 Next
