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 159th Lydxn 🇨🇦 933 58 5ms 7 Feb 2023 159th xsot 🇸🇬 933 58 5ms 28 Jun 2024 159th Salutations45 933 58 5ms 18 Dec 2024 159th canissimia 🇦🇶 933 58 5ms 12 Dec 2025 165th canissimia 🇦🇶 932 51 1,302ms 6 May 2022 165th Lydxn 🇨🇦 932 51 1,280ms 6 May 2022 165th primo-ppcg 🇹🇭 932 51 1,309ms 6 May 2022 165th pardouin 🇫🇷 932 51 1,391ms 12 Apr 2025 169th ovs-code 🇩🇪 932 60 22ms 4 May 2022 169th m-tkach 🇺🇦 932 60 17ms 4 May 2022 169th btnlq 932 60 25ms 5 May 2022 169th orthoplex 🇨🇽 932 60 25ms 9 Oct 2022 169th FlorianCassayre 🇫🇷 932 60 20ms 7 Nov 2022 169th SirBogman 🇺🇸 932 60 21ms 20 Nov 2022 169th QuincyNash 🇺🇸 932 60 20ms 1 Dec 2022 169th Steffan153 🇫🇮 932 60 19ms 19 Dec 2022 169th SirFireball3521 932 60 18ms 26 Jan 2023 169th Shanethegamer 🇺🇸 932 60 22ms 25 May 2023 169th CornerMercury 🇬🇧 932 60 20ms 19 Jun 2023 169th ndren 932 60 21ms 2 Aug 2023 169th kg583 🇺🇸 932 60 52ms 14 Aug 2023 169th Just4FunCoder 932 60 21ms 17 Feb 2024 169th HumanoidCPU 932 60 21ms 6 May 2024 169th sean-niemann 🇺🇸 932 60 21ms 10 Jul 2024 169th pardouin 🇫🇷 932 60 17ms 11 Jul 2024 169th dokutan 932 60 23ms 15 Aug 2024 169th jatloe 932 60 19ms 26 Aug 2024 169th emgordon154 932 60 20ms 6 Sep 2024 169th starfihs 932 60 17ms 12 Oct 2024 169th CaedenHarper 🇨🇦 932 60 19ms 3 Nov 2024 169th 5quiwyrm 932 60 20ms 12 Nov 2024 169th plcc0 932 60 17ms 26 Mar 2025 169th yujh-yujh 🇬🇸 932 60 18ms 28 Mar 2025 169th albanian-laundromat 🇺🇸 932 60 20ms 12 Apr 2025 169th Mukundan314 932 60 21ms 17 Apr 2025 169th fuzzylojik-golf 🇺🇸 932 60 20ms 1 Sep 2025 169th luuumine 🇫🇷 932 60 21ms 3 Nov 2025 169th Babafaba 932 60 20ms 7 Nov 2025 169th hellopir2 932 60 24ms 24 Nov 2025 200th vang1ong7ang 931 89 134ms 32 hours ago 201st m-tkach 🇺🇦 931 91 59ms 5 May 2022 201st 09cf 931 91 59ms 4 Oct 2023 203rd grey0ut 930 48 2,086ms 8 Apr 2025 204th JayXon 🇺🇸 930 73 4ms 23 Dec 2025 205th GolfingSuccess 🇬🇷 928 49 38ms 12 Aug 2024 205th Shanethegamer 🇺🇸 928 49 39ms 12 Aug 2024 205th Steffan153 🇫🇮 928 49 39ms 12 Aug 2024 205th MeWhenI 🇻🇦 928 49 37ms 13 Aug 2024 205th DialFrost 🇸🇬 928 49 38ms 13 Aug 2024 205th GrayJoKing 🇦🇺 928 49 41ms 15 Aug 2024 205th btnlq 928 49 39ms 16 Aug 2024 205th emgordon154 928 49 41ms 19 Aug 2024 205th ovs-code 🇩🇪 928 49 39ms 19 Aug 2024 205th mousetail 🇳🇱 928 49 39ms 13 Sep 2024 205th lynn 928 49 39ms 20 Dec 2024 205th weeble 928 49 39ms 20 Dec 2024 205th sean-niemann 🇺🇸 928 49 39ms 11 Jan 2025 218th emplv 🇱🇻 928 60 10ms 5 May 2022 218th GrayJoKing 🇦🇺 928 60 9ms 6 May 2022 218th targrik 928 60 9ms 24 Dec 2024 218th xsot 🇸🇬 928 60 10ms 1 May 2025 222nd Lydxn 🇨🇦 927 38 1,594ms 4 May 2022 222nd GrayJoKing 🇦🇺 927 38 396ms 5 May 2022 222nd Steffan153 🇫🇮 927 38 387ms 16 Dec 2022 222nd ovs-code 🇩🇪 927 38 379ms 30 Dec 2023 226th ovs-code 🇩🇪 927 52 457ms 16 Jan 2024 226th kg583 🇺🇸 927 52 479ms 24 Jan 2024 226th Shanethegamer 🇺🇸 927 52 455ms 24 Mar 2024 226th pardouin 🇫🇷 927 52 480ms 11 Jul 2024 226th Steffan153 🇫🇮 927 52 498ms 17 Aug 2024 226th sean-niemann 🇺🇸 927 52 464ms 24 Jan 2025 232nd MeWhenI 🇻🇦 926 68 98ms 23 Feb 2023 232nd JayXon 🇺🇸 926 68 98ms 4 Mar 2025 234th JayXon 🇺🇸 925 53 180ms 24 Feb 2026 235th Lydxn 🇨🇦 925 70 106ms 17 Oct 2022 235th JayXon 🇺🇸 925 70 118ms 17 Oct 2022 237th roavin 925 84 361ms 23 Jun 2022 237th tkr-sh 🇰🇵 925 84 369ms 20 Aug 2022 237th Nickmiste 925 84 364ms 9 Nov 2022 237th postie77 925 84 369ms 19 May 2023 First Prev 161–240 of 3,704 Next Last