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 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 Topological Sort 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 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 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 742nd biocommando 🇫🇮 891 60 20 Dec 2022 742nd Betuaredead 891 60 5 Jan 2023 742nd piano-miles 891 60 16 Jan 2023 742nd Yewzir 🇧🇪 891 60 12 Feb 2023 742nd shellbertt 🇨🇦 891 60 26 Feb 2023 742nd zakariamouhid 891 60 20 May 2023 742nd raphaelimahorn 891 60 23 Aug 2023 742nd jbt 891 60 25 Dec 2023 742nd olleicua 🇺🇸 891 60 15 Feb 2024 742nd HumanoidCPU 891 60 3 May 2024 742nd dokutan 891 60 13 Aug 2024 742nd LostSyntax21 🇬🇧 891 60 10 Sep 2024 742nd xyangst 891 60 28 Sep 2024 742nd a6166231 🇨🇳 891 60 15 May 2025 742nd Protothor 891 60 21 days ago 766th GolfingSuccess 🇬🇷 891 95 5 May 2022 766th Alex-x90 🇺🇸 891 95 4 Dec 2022 766th Mandrzejy 🇵🇱 891 95 22 Mar 2024 769th lynn 890 65 5 May 2022 769th GrayJoKing 🇦🇺 890 65 5 May 2022 769th Sakisan 🇧🇪 890 65 6 May 2022 769th JayXon 🇺🇸 890 65 17 Oct 2022 769th Steffan153 🇫🇮 890 65 12 Nov 2022 769th tobeannouncd 890 65 25 Apr 2025 769th sean-niemann 🇺🇸 890 65 9 Jun 2025 776th stefangimmillaro 890 71 2 Oct 2022 776th Steffan153 🇫🇮 890 71 23 Feb 2023 776th Shanethegamer 🇺🇸 890 71 16 May 2023 776th sean-niemann 🇺🇸 890 71 12 Jul 2024 780th sean-niemann 🇺🇸 890 73 12 Jul 2024 781st DialFrost 🇸🇬 890 95 10 Dec 2024 782nd primo-ppcg 🇹🇭 889 52 5 May 2022 782nd dvargas46 🇺🇸 889 52 22 Dec 2022 784th JayXon 🇺🇸 889 74 14 Nov 2024 785th GrayJoKing 🇦🇺 889 77 13 Sep 2024 786th canissimia 🇦🇶 889 110 20 Feb 2023 787th stefangimmillaro 889 112 26 Sep 2023 787th kkoenig 889 112 4 Jan 2024 789th martinnorling 🇸🇪 888 75 5 May 2022 789th Trunksistor 🇫🇷 888 75 9 May 2022 789th bbakersmith 888 75 28 Jun 2022 789th bsoyka 🇺🇸 888 75 16 Jul 2022 789th P-Quentin 🇫🇷 888 75 3 Aug 2022 789th julienlamoureux78 888 75 12 Aug 2022 789th dzshn 888 75 16 Aug 2022 789th NerdyMcNerd42 888 75 20 Aug 2022 789th destofr 888 75 25 Aug 2022 789th vishwathg 888 75 10 Oct 2022 789th nkoppel 888 75 19 Oct 2022 789th AZ9tumas 888 75 23 Oct 2022 789th EthanGrant1 888 75 7 Nov 2022 789th Omega65536 🇩🇪 888 75 24 Nov 2022 789th b10011 🇫🇮 888 75 3 Jan 2023 789th 4ndyJ 🇬🇧 888 75 3 Jan 2023 789th randolchance 888 75 8 Jan 2023 789th LeeCamp 888 75 12 Jan 2023 789th hellwue 888 75 15 Feb 2023 789th nandanjp 888 75 29 Mar 2023 789th kaptsanovb 888 75 20 Apr 2023 789th galloj 🇨🇿 888 75 20 May 2023 789th jhu04 888 75 23 Jun 2023 789th HelloYuiYui 888 75 1 Nov 2023 789th tobyLovick 888 75 10 Nov 2023 789th VictorStenvers 🇳🇱 888 75 13 Nov 2023 789th RZ781 888 75 19 Nov 2023 789th mikehanus 888 75 21 Nov 2023 789th 1231234md5 🇨🇳 888 75 14 Dec 2023 789th Hebelub 888 75 6 Jan 2024 789th minhtrancccp 888 75 11 Jan 2024 789th 123mjb 888 75 25 Jan 2024 789th jbjd 888 75 25 Feb 2024 789th gabe-gallegos 888 75 2 May 2024 789th kejcao 🇨🇦 888 75 11 May 2024 789th f-tucker 888 75 24 May 2024 789th Florian-Mt 888 75 22 Jul 2024 Prev 751–825 of 3,214 Next
