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 748th elgan65536 894 93 124ms 5 Mar 2024 748th smartiel 894 93 120ms 12 Aug 2024 748th trist224 🇫🇷 894 93 126ms 12 Aug 2024 748th nullie 894 93 126ms 19 Dec 2024 748th lolgeny 894 93 128ms 22 Feb 2025 756th Shanethegamer 🇺🇸 893 61 6ms 31 Oct 2022 756th MeWhenI 🇻🇦 893 61 5ms 4 Nov 2022 758th JayXon 🇺🇸 893 74 3,078ms 14 Nov 2024 759th GolfingSuccess 🇬🇷 893 95 54ms 5 May 2022 759th Alex-x90 🇺🇸 893 95 56ms 4 Dec 2022 759th Mandrzejy 🇵🇱 893 95 57ms 22 Mar 2024 762nd m-tkach 🇺🇦 893 117 27ms 7 May 2022 762nd Lydxn 🇨🇦 893 117 28ms 7 May 2022 764th Steffan153 🇫🇮 892 52 7ms 31 Dec 2022 765th KatieLG 🇬🇧 892 60 13ms 4 May 2022 765th ScottHamper 892 60 10ms 5 May 2022 765th Re-Adventures 🇮🇳 892 60 10ms 5 May 2022 765th 0x24a537r9 892 60 10ms 29 Jul 2022 765th stefangabos 🇷🇴 892 60 10ms 19 Aug 2022 765th eranws 892 60 10ms 10 Sep 2022 765th GeorgeStechman 🇬🇧 892 60 10ms 26 Sep 2022 765th BloodStormKnight 892 60 10ms 15 Oct 2022 765th dzshn 892 60 10ms 3 Dec 2022 765th biocommando 🇫🇮 892 60 10ms 20 Dec 2022 765th Betuaredead 892 60 9ms 5 Jan 2023 765th piano-miles 892 60 10ms 16 Jan 2023 765th Yewzir 🇧🇪 892 60 10ms 12 Feb 2023 765th shellbertt 🇨🇦 892 60 11ms 26 Feb 2023 765th zakariamouhid 892 60 10ms 20 May 2023 765th raphaelimahorn 892 60 10ms 23 Aug 2023 765th jbt 892 60 10ms 25 Dec 2023 765th olleicua 🇺🇸 892 60 10ms 15 Feb 2024 765th HumanoidCPU 892 60 9ms 3 May 2024 765th dokutan 892 60 11ms 13 Aug 2024 765th LostSyntax21 🇬🇧 892 60 11ms 10 Sep 2024 765th xyangst 892 60 11ms 28 Sep 2024 765th a6166231 🇨🇳 892 60 9ms 15 May 2025 765th Protothor 892 60 11ms 8 Jul 2025 765th SebassNoob 892 60 10ms 5 Aug 2025 765th Yax42 🇫🇷 892 60 9ms 5 Sep 2025 765th levinwinter 892 60 9ms 20 days ago 792nd stefangimmillaro 892 71 89ms 2 Oct 2022 792nd Steffan153 🇫🇮 892 71 90ms 23 Feb 2023 792nd Shanethegamer 🇺🇸 892 71 89ms 16 May 2023 792nd sean-niemann 🇺🇸 892 71 92ms 12 Jul 2024 796th sean-niemann 🇺🇸 892 109 261ms 25 May 2024 796th GolfingSuccess 🇬🇷 892 109 252ms 6 Sep 2025 798th lynn 891 65 316ms 5 May 2022 798th GrayJoKing 🇦🇺 891 65 327ms 5 May 2022 798th Sakisan 🇧🇪 891 65 214ms 6 May 2022 798th JayXon 🇺🇸 891 65 366ms 17 Oct 2022 798th Steffan153 🇫🇮 891 65 172ms 12 Nov 2022 798th tobeannouncd 891 65 331ms 25 Apr 2025 798th sean-niemann 🇺🇸 891 65 174ms 9 Jun 2025 805th RockOfStone 891 73 5ms 22 days ago 806th canissimia 🇦🇶 891 110 3,068ms 20 Feb 2023 807th primo-ppcg 🇹🇭 890 52 213ms 5 May 2022 807th dvargas46 🇺🇸 890 52 83ms 22 Dec 2022 809th DialFrost 🇸🇬 890 56 820ms 1 Sep 2025 810th GrayJoKing 🇦🇺 890 77 76ms 13 Sep 2024 811th DialFrost 🇸🇬 890 95 32ms 10 Dec 2024 812th martinnorling 🇸🇪 889 75 24ms 5 May 2022 812th Trunksistor 🇫🇷 889 75 23ms 9 May 2022 812th bbakersmith 889 75 30ms 28 Jun 2022 812th bsoyka 🇺🇸 889 75 20ms 16 Jul 2022 812th P-Quentin 🇫🇷 889 75 18ms 3 Aug 2022 812th julienlamoureux78 889 75 20ms 12 Aug 2022 812th dzshn 889 75 29ms 16 Aug 2022 812th NerdyMcNerd42 889 75 19ms 20 Aug 2022 812th destofr 889 75 20ms 25 Aug 2022 812th vishwathg 889 75 47ms 10 Oct 2022 812th nkoppel 889 75 19ms 19 Oct 2022 812th AZ9tumas 889 75 21ms 23 Oct 2022 812th EthanGrant1 889 75 33ms 7 Nov 2022 812th Omega65536 🇩🇪 889 75 18ms 24 Nov 2022 First Prev 751–825 of 3,438 Next Last
