Collatz in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 560th GrayJoKing 🇦🇺 892 65 250ms 5 May 2022 560th Sakisan 🇧🇪 892 65 178ms 6 May 2022 560th JayXon 🇺🇸 892 65 301ms 17 Oct 2022 560th Steffan153 🇫🇮 892 65 181ms 12 Nov 2022 560th tobeannouncd 892 65 302ms 25 Apr 2025 560th sean-niemann 🇺🇸 892 65 168ms 9 Jun 2025 567th stefangimmillaro 892 71 100ms 2 Oct 2022 567th Steffan153 🇫🇮 892 71 100ms 23 Feb 2023 567th Shanethegamer 🇺🇸 892 71 98ms 16 May 2023 567th sean-niemann 🇺🇸 892 71 96ms 12 Jul 2024 571st frankgraziano 892 75 17ms 23 Feb 2026 572nd snoozingnewt 🇨🇦 892 96 118ms 4 Dec 2025 572nd Steffan153 🇫🇮 892 96 120ms 27 Feb 2026 574th Lydxn 🇨🇦 892 108 284ms 6 May 2022 574th CaedenHarper 🇨🇦 892 108 299ms 5 Oct 2025 576th GrayJoKing 🇦🇺 891 77 76ms 13 Sep 2024 577th DialFrost 🇸🇬 891 95 29ms 10 Dec 2024 578th canissimia 🇦🇶 891 110 2,640ms 20 Feb 2023 579th jared-hughes 891 130 22ms 15 Dec 2024 580th canissimia 🇦🇶 891 204 16ms 25 Nov 2023 581st primo-ppcg 🇹🇭 890 52 219ms 5 May 2022 581st dvargas46 🇺🇸 890 52 87ms 22 Dec 2022 583rd mousetail 🇳🇱 889 41 66ms 29 Aug 2025 584th MeWhenI 🇻🇦 889 53 39ms 1 Jun 2022 584th stefangimmillaro 889 53 39ms 2 Oct 2022 584th Haksell 🇦🇶 889 53 39ms 22 Feb 2023 587th primo-ppcg 🇹🇭 888 85 39ms 14 Jan 2025 587th MeWhenI 🇻🇦 888 85 41ms 21 Apr 2025 589th m-tkach 🇺🇦 888 112 119ms 22 Jun 2025 590th ovs-code 🇩🇪 887 73 340ms 22 Jul 2023 591st frosster 🇨🇦 887 77 5ms 8 Feb 2026 592nd janbehrens 🇩🇪 887 90 467ms 21 Apr 2023 592nd Yewzir 🇧🇪 887 90 459ms 22 Apr 2023 592nd Ripick 887 90 459ms 27 Nov 2024 592nd emgordon154 887 90 476ms 10 Dec 2025 596th albanian-laundromat 887 94 486ms 24 Sep 2025 596th jkelly467 887 94 401ms 23 Oct 2025 596th HumanoidCPU 887 94 479ms 8 Nov 2025 599th GolfingSuccess 🇬🇷 886 71 2ms 5 May 2022 599th emplv 🇱🇻 886 71 2ms 5 May 2022 599th JayXon 🇺🇸 886 71 2ms 7 May 2022 599th nwellnhof 🇩🇪 886 71 2ms 5 Jun 2022 599th stefangimmillaro 886 71 2ms 2 Jun 2023 599th 09cf 886 71 7ms 4 Oct 2023 599th kkoenig 886 71 2ms 21 Dec 2023 599th sean-niemann 🇺🇸 886 71 2ms 10 Jul 2024 599th masinag 🇮🇹 886 71 2ms 6 Oct 2024 608th Shanethegamer 🇺🇸 886 82 18ms 19 Dec 2023 608th edsrzf 🇳🇿 886 82 17ms 6 Jan 2025 610th SiestaGuru 886 88 371ms 9 Jan 2023 610th rifatx 886 88 398ms 5 Jul 2024 610th kmathis22 886 88 371ms 25 Sep 2025 613th m-tkach 🇺🇦 885 59 401ms 21 Jan 2024 613th GolfingSuccess 🇬🇷 885 59 502ms 20 Jan 2025 613th duckyluuk 🇳🇱 885 59 409ms 4 Dec 2025 616th steffan-polygolf 885 74 132ms 14 Feb 2024 616th prestosilver 🇺🇸 885 74 134ms 18 Dec 2025 618th nipzu 885 94 134ms 17 May 2022 618th Natanaelel 🇸🇪 885 94 126ms 17 Jun 2022 618th nkoppel 885 94 122ms 19 Oct 2022 618th ovs-code 🇩🇪 885 94 126ms 21 Jun 2023 618th mousetail 🇳🇱 885 94 131ms 12 Jan 2024 623rd Irratix 🇳🇱 885 96 62ms 4 May 2022 623rd MeWhenI 🇻🇦 885 96 58ms 1 Jun 2022 623rd janbehrens 🇩🇪 885 96 61ms 21 Apr 2023 623rd Shanethegamer 🇺🇸 885 96 59ms 15 May 2023 623rd Yewzir 🇧🇪 885 96 57ms 11 Nov 2023 623rd MateuszPietrzak 🇵🇱 885 96 60ms 18 Nov 2023 623rd kkoenig 885 96 55ms 21 Dec 2023 623rd BlankSpruce 885 96 61ms 20 Aug 2024 623rd fuzzylojik-golf 🇺🇸 885 96 59ms 14 Jun 2025 623rd dokutan 885 96 60ms 8 Feb 2026 633rd MichalMarsalek 🇨🇿 884 70 20ms 5 May 2022 633rd primo-ppcg 🇹🇭 884 70 25ms 5 May 2022 633rd SirBogman 🇺🇸 884 70 19ms 5 May 2022 633rd prplz 🇦🇺 884 70 21ms 5 May 2022 633rd Irratix 🇳🇱 884 70 17ms 7 May 2022 633rd rak1507 🇬🇧 884 70 20ms 7 May 2022 633rd inventshah 884 70 18ms 9 May 2022 633rd k3w1k0d3r 884 70 20ms 22 Jun 2022 First Prev 561–640 of 3,660 Next Last