Collatz in all languages in chars. 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 Chars Time Submitted 160th clockworknazo 933 58 5ms 15 Nov 2022 160th Lydxn 🇨🇦 933 58 5ms 7 Feb 2023 160th xsot 🇸🇬 933 58 5ms 28 Jun 2024 160th Salutations45 933 58 5ms 18 Dec 2024 160th canissimia 🇦🇶 933 58 5ms 12 Dec 2025 166th ovs-code 🇩🇪 932 60 19ms 4 May 2022 166th m-tkach 🇺🇦 932 60 18ms 4 May 2022 166th btnlq 932 60 25ms 5 May 2022 166th orthoplex 🇨🇽 932 60 24ms 9 Oct 2022 166th FlorianCassayre 🇫🇷 932 60 19ms 7 Nov 2022 166th SirBogman 🇺🇸 932 60 20ms 20 Nov 2022 166th QuincyNash 🇺🇸 932 60 20ms 1 Dec 2022 166th Steffan153 🇫🇮 932 60 19ms 19 Dec 2022 166th SirFireball3521 932 60 17ms 26 Jan 2023 166th Shanethegamer 🇺🇸 932 60 20ms 25 May 2023 166th CornerMercury 🇬🇧 932 60 20ms 19 Jun 2023 166th ndren 932 60 21ms 2 Aug 2023 166th kg583 🇺🇸 932 60 48ms 14 Aug 2023 166th Just4FunCoder 932 60 21ms 17 Feb 2024 166th HumanoidCPU 932 60 20ms 6 May 2024 166th sean-niemann 🇺🇸 932 60 19ms 10 Jul 2024 166th pardouin 🇫🇷 932 60 17ms 11 Jul 2024 166th dokutan 932 60 20ms 15 Aug 2024 166th jatloe 932 60 20ms 26 Aug 2024 166th emgordon154 932 60 20ms 6 Sep 2024 166th starfihs 932 60 18ms 12 Oct 2024 166th CaedenHarper 🇨🇦 932 60 20ms 3 Nov 2024 166th 5quiwyrm 932 60 18ms 12 Nov 2024 166th plcc0 932 60 16ms 26 Mar 2025 166th yujh-yujh 🇬🇸 932 60 18ms 28 Mar 2025 166th albanian-laundromat 932 60 19ms 12 Apr 2025 166th Mukundan314 932 60 22ms 17 Apr 2025 166th fuzzylojik-golf 🇺🇸 932 60 20ms 1 Sep 2025 166th luuumine 🇫🇷 932 60 20ms 3 Nov 2025 166th Babafaba 932 60 18ms 7 Nov 2025 166th hellopir2 932 60 20ms 24 Nov 2025 197th canissimia 🇦🇶 931 51 1,302ms 6 May 2022 197th Lydxn 🇨🇦 931 51 1,280ms 6 May 2022 197th primo-ppcg 🇹🇭 931 51 1,309ms 6 May 2022 197th pardouin 🇫🇷 931 51 1,391ms 12 Apr 2025 201st jusaka 931 89 132ms 5 hours ago 202nd m-tkach 🇺🇦 931 91 61ms 5 May 2022 202nd 09cf 931 91 56ms 4 Oct 2023 204th grey0ut 930 48 2,086ms 8 Apr 2025 205th JayXon 🇺🇸 930 73 4ms 23 Dec 2025 206th GolfingSuccess 🇬🇷 927 49 38ms 12 Aug 2024 206th Shanethegamer 🇺🇸 927 49 39ms 12 Aug 2024 206th Steffan153 🇫🇮 927 49 39ms 12 Aug 2024 206th MeWhenI 🇻🇦 927 49 37ms 13 Aug 2024 206th DialFrost 🇸🇬 927 49 38ms 13 Aug 2024 206th GrayJoKing 🇦🇺 927 49 41ms 15 Aug 2024 206th btnlq 927 49 39ms 16 Aug 2024 206th emgordon154 927 49 41ms 19 Aug 2024 206th ovs-code 🇩🇪 927 49 39ms 19 Aug 2024 206th mousetail 🇳🇱 927 49 39ms 13 Sep 2024 206th lynn 927 49 39ms 20 Dec 2024 206th weeble 927 49 40ms 20 Dec 2024 206th sean-niemann 🇺🇸 927 49 39ms 11 Jan 2025 219th ovs-code 🇩🇪 927 52 455ms 16 Jan 2024 219th kg583 🇺🇸 927 52 410ms 24 Jan 2024 219th Shanethegamer 🇺🇸 927 52 407ms 24 Mar 2024 219th pardouin 🇫🇷 927 52 408ms 11 Jul 2024 219th Steffan153 🇫🇮 927 52 401ms 17 Aug 2024 219th sean-niemann 🇺🇸 927 52 479ms 24 Jan 2025 225th emplv 🇱🇻 927 60 10ms 5 May 2022 225th GrayJoKing 🇦🇺 927 60 9ms 6 May 2022 225th targrik 927 60 9ms 24 Dec 2024 225th xsot 🇸🇬 927 60 10ms 1 May 2025 229th Lydxn 🇨🇦 926 38 1,649ms 4 May 2022 229th GrayJoKing 🇦🇺 926 38 424ms 5 May 2022 229th Steffan153 🇫🇮 926 38 398ms 16 Dec 2022 229th ovs-code 🇩🇪 926 38 449ms 30 Dec 2023 233rd MeWhenI 🇻🇦 925 68 98ms 23 Feb 2023 233rd JayXon 🇺🇸 925 68 98ms 4 Mar 2025 235th JayXon 🇺🇸 924 53 161ms 24 Feb 2026 236th Lydxn 🇨🇦 924 70 110ms 17 Oct 2022 236th JayXon 🇺🇸 924 70 120ms 17 Oct 2022 238th roavin 924 84 361ms 23 Jun 2022 238th tkr-sh 🇰🇵 924 84 369ms 20 Aug 2022 238th Nickmiste 924 84 364ms 9 Nov 2022 First Prev 161–240 of 3,641 Next Last