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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 746th trist224 🇫🇷 894 93 127ms 12 Aug 2024 746th nullie 894 93 128ms 19 Dec 2024 746th lolgeny 894 93 124ms 22 Feb 2025 754th Shanethegamer 🇺🇸 893 61 6ms 31 Oct 2022 754th MeWhenI 🇻🇦 893 61 5ms 4 Nov 2022 756th JayXon 🇺🇸 893 74 3,478ms 14 Nov 2024 757th GolfingSuccess 🇬🇷 893 95 54ms 5 May 2022 757th Alex-x90 🇺🇸 893 95 56ms 4 Dec 2022 757th Mandrzejy 🇵🇱 893 95 57ms 22 Mar 2024 760th m-tkach 🇺🇦 893 117 27ms 7 May 2022 760th Lydxn 🇨🇦 893 117 28ms 7 May 2022 762nd Steffan153 🇫🇮 892 52 7ms 31 Dec 2022 763rd KatieLG 🇬🇧 892 60 11ms 4 May 2022 763rd ScottHamper 892 60 10ms 5 May 2022 763rd Re-Adventures 🇮🇳 892 60 12ms 5 May 2022 763rd 0x24a537r9 892 60 11ms 29 Jul 2022 763rd stefangabos 🇷🇴 892 60 10ms 19 Aug 2022 763rd eranws 892 60 10ms 10 Sep 2022 763rd GeorgeStechman 🇬🇧 892 60 10ms 26 Sep 2022 763rd BloodStormKnight 892 60 11ms 15 Oct 2022 763rd dzshn 892 60 12ms 3 Dec 2022 763rd biocommando 🇫🇮 892 60 9ms 20 Dec 2022 763rd Betuaredead 892 60 10ms 5 Jan 2023 763rd piano-miles 892 60 11ms 16 Jan 2023 763rd Yewzir 🇧🇪 892 60 10ms 12 Feb 2023 763rd shellbertt 🇨🇦 892 60 10ms 26 Feb 2023 763rd zakariamouhid 892 60 10ms 20 May 2023 763rd raphaelimahorn 892 60 10ms 23 Aug 2023 763rd jbt 892 60 11ms 25 Dec 2023 763rd olleicua 🇺🇸 892 60 11ms 15 Feb 2024 763rd HumanoidCPU 892 60 11ms 3 May 2024 763rd dokutan 892 60 13ms 13 Aug 2024 763rd LostSyntax21 🇬🇧 892 60 10ms 10 Sep 2024 763rd xyangst 892 60 10ms 28 Sep 2024 763rd a6166231 🇨🇳 892 60 10ms 15 May 2025 763rd Protothor 892 60 10ms 8 Jul 2025 763rd SebassNoob 892 60 11ms 5 Aug 2025 763rd Yax42 🇫🇷 892 60 11ms 5 Sep 2025 763rd levinwinter 892 60 11ms 15 days ago 790th stefangimmillaro 892 71 89ms 2 Oct 2022 790th Steffan153 🇫🇮 892 71 95ms 23 Feb 2023 790th Shanethegamer 🇺🇸 892 71 89ms 16 May 2023 790th sean-niemann 🇺🇸 892 71 92ms 12 Jul 2024 794th sean-niemann 🇺🇸 892 109 240ms 25 May 2024 794th GolfingSuccess 🇬🇷 892 109 291ms 6 Sep 2025 796th lynn 891 65 316ms 5 May 2022 796th GrayJoKing 🇦🇺 891 65 327ms 5 May 2022 796th Sakisan 🇧🇪 891 65 214ms 6 May 2022 796th JayXon 🇺🇸 891 65 366ms 17 Oct 2022 796th Steffan153 🇫🇮 891 65 172ms 12 Nov 2022 796th tobeannouncd 891 65 331ms 25 Apr 2025 796th sean-niemann 🇺🇸 891 65 174ms 9 Jun 2025 803rd RockOfStone 891 73 5ms 17 days ago 804th canissimia 🇦🇶 891 110 3,068ms 20 Feb 2023 805th primo-ppcg 🇹🇭 890 52 213ms 5 May 2022 805th dvargas46 🇺🇸 890 52 83ms 22 Dec 2022 807th DialFrost 🇸🇬 890 56 1,411ms 1 Sep 2025 808th GrayJoKing 🇦🇺 890 77 76ms 13 Sep 2024 809th DialFrost 🇸🇬 890 95 32ms 10 Dec 2024 810th martinnorling 🇸🇪 889 75 24ms 5 May 2022 810th Trunksistor 🇫🇷 889 75 23ms 9 May 2022 810th bbakersmith 889 75 30ms 28 Jun 2022 810th bsoyka 🇺🇸 889 75 20ms 16 Jul 2022 810th P-Quentin 🇫🇷 889 75 18ms 3 Aug 2022 810th julienlamoureux78 889 75 20ms 12 Aug 2022 810th dzshn 889 75 29ms 16 Aug 2022 810th NerdyMcNerd42 889 75 19ms 20 Aug 2022 810th destofr 889 75 20ms 25 Aug 2022 810th vishwathg 889 75 47ms 10 Oct 2022 810th nkoppel 889 75 19ms 19 Oct 2022 810th AZ9tumas 889 75 21ms 23 Oct 2022 810th EthanGrant1 889 75 33ms 7 Nov 2022 810th Omega65536 🇩🇪 889 75 18ms 24 Nov 2022 810th b10011 🇫🇮 889 75 27ms 3 Jan 2023 810th 4ndyJ 🇬🇧 889 75 23ms 3 Jan 2023 First Prev 751–825 of 3,427 Next Last
