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 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 751st stefangimmillaro 892 71 2 Oct 2022 751st Steffan153 🇫🇮 892 71 23 Feb 2023 751st Shanethegamer 🇺🇸 892 71 16 May 2023 751st sean-niemann 🇺🇸 892 71 12 Jul 2024 755th GolfingSuccess 🇬🇷 892 95 5 May 2022 755th Alex-x90 🇺🇸 892 95 4 Dec 2022 755th Mandrzejy 🇵🇱 892 95 22 Mar 2024 758th sean-niemann 🇺🇸 892 109 25 May 2024 758th GolfingSuccess 🇬🇷 892 109 6 Sep 2025 760th KatieLG 🇬🇧 891 60 4 May 2022 760th ScottHamper 891 60 5 May 2022 760th Re-Adventures 🇮🇳 891 60 5 May 2022 760th 0x24a537r9 891 60 29 Jul 2022 760th stefangabos 🇷🇴 891 60 19 Aug 2022 760th eranws 891 60 10 Sep 2022 760th GeorgeStechman 🇬🇧 891 60 26 Sep 2022 760th BloodStormKnight 891 60 15 Oct 2022 760th dzshn 891 60 3 Dec 2022 760th biocommando 🇫🇮 891 60 20 Dec 2022 760th Betuaredead 891 60 5 Jan 2023 760th piano-miles 891 60 16 Jan 2023 760th Yewzir 🇧🇪 891 60 12 Feb 2023 760th shellbertt 🇨🇦 891 60 26 Feb 2023 760th zakariamouhid 891 60 20 May 2023 760th raphaelimahorn 891 60 23 Aug 2023 760th jbt 891 60 25 Dec 2023 760th olleicua 🇺🇸 891 60 15 Feb 2024 760th HumanoidCPU 891 60 3 May 2024 760th dokutan 891 60 13 Aug 2024 760th LostSyntax21 🇬🇧 891 60 10 Sep 2024 760th xyangst 891 60 28 Sep 2024 760th a6166231 🇨🇳 891 60 15 May 2025 760th Protothor 891 60 8 Jul 2025 760th SebassNoob 891 60 5 Aug 2025 760th Yax42 🇫🇷 891 60 5 Sep 2025 786th lynn 891 65 5 May 2022 786th GrayJoKing 🇦🇺 891 65 5 May 2022 786th Sakisan 🇧🇪 891 65 6 May 2022 786th JayXon 🇺🇸 891 65 17 Oct 2022 786th Steffan153 🇫🇮 891 65 12 Nov 2022 786th tobeannouncd 891 65 25 Apr 2025 786th sean-niemann 🇺🇸 891 65 9 Jun 2025 793rd RockOfStone 891 73 5 hours ago 794th canissimia 🇦🇶 891 110 20 Feb 2023 795th primo-ppcg 🇹🇭 890 52 5 May 2022 795th dvargas46 🇺🇸 890 52 22 Dec 2022 797th DialFrost 🇸🇬 890 56 1 Sep 2025 798th GrayJoKing 🇦🇺 890 77 13 Sep 2024 799th DialFrost 🇸🇬 890 95 10 Dec 2024 800th martinnorling 🇸🇪 889 75 5 May 2022 800th Trunksistor 🇫🇷 889 75 9 May 2022 800th bbakersmith 889 75 28 Jun 2022 800th bsoyka 🇺🇸 889 75 16 Jul 2022 800th P-Quentin 🇫🇷 889 75 3 Aug 2022 800th julienlamoureux78 889 75 12 Aug 2022 800th dzshn 889 75 16 Aug 2022 800th NerdyMcNerd42 889 75 20 Aug 2022 800th destofr 889 75 25 Aug 2022 800th vishwathg 889 75 10 Oct 2022 800th nkoppel 889 75 19 Oct 2022 800th AZ9tumas 889 75 23 Oct 2022 800th EthanGrant1 889 75 7 Nov 2022 800th Omega65536 🇩🇪 889 75 24 Nov 2022 800th b10011 🇫🇮 889 75 3 Jan 2023 800th 4ndyJ 🇬🇧 889 75 3 Jan 2023 800th randolchance 889 75 8 Jan 2023 800th LeeCamp 889 75 12 Jan 2023 800th hellwue 889 75 15 Feb 2023 800th nandanjp 889 75 29 Mar 2023 800th kaptsanovb 889 75 20 Apr 2023 800th galloj 🇨🇿 889 75 20 May 2023 800th jhu04 889 75 23 Jun 2023 800th HelloYuiYui 889 75 1 Nov 2023 800th tobyLovick 889 75 10 Nov 2023 800th VictorStenvers 🇳🇱 889 75 13 Nov 2023 First Prev 751–825 of 3,400 Next Last
