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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 478th GolfingSuccess 🇬🇷 894 74 16ms 8 days ago 478th snoozingnewt 🇨🇦 894 74 16ms 8 hours ago 483rd Steffan153 🇫🇮 893 67 112ms 18 Dec 2022 483rd Lydxn 🇨🇦 893 67 116ms 4 Feb 2023 483rd DialFrost 🇸🇬 893 67 99ms 17 Mar 2025 486th GrayJoKing 🇦🇺 893 91 30ms 19 Jan 2023 487th SirBogman 🇺🇸 892 50 449ms 5 May 2022 487th nwellnhof 🇩🇪 892 50 423ms 3 Jun 2022 487th Lydxn 🇨🇦 892 50 437ms 15 Aug 2022 487th Steffan153 🇫🇮 892 50 501ms 9 Aug 2024 491st Lydxn 🇨🇦 892 72 353ms 16 Jul 2023 492nd NickTheEASDude 🇺🇸 892 76 6ms 7 May 2024 492nd edsrzf 🇳🇿 892 76 6ms 23 Dec 2025 492nd Shanethegamer 🇺🇸 892 76 5ms 23 Dec 2025 492nd jared-hughes 892 76 5ms 24 Dec 2025 492nd Waffle3z 892 76 5ms 26 Dec 2025 492nd Blendi-Goose 892 76 5ms 25 days ago 498th edsrzf 🇳🇿 892 78 12ms 26 Oct 2024 499th MichalMarsalek 🇨🇿 892 87 436ms 5 May 2022 499th Kloppermand 🇩🇰 892 87 414ms 7 Oct 2022 499th bwat2 892 87 397ms 6 Apr 2023 499th bpharaldsson 892 87 353ms 22 days ago 503rd Ripick 891 73 122ms 8 May 2023 504th dokutan 891 88 425ms 16 days ago 505th oeb25 891 93 119ms 16 May 2022 505th snobee 🇨🇦 891 93 116ms 8 Dec 2022 505th logvp 891 93 121ms 2 Jan 2024 505th smartiel 891 93 119ms 12 Aug 2024 505th trist224 🇫🇷 891 93 121ms 12 Aug 2024 505th nullie 891 93 120ms 19 Dec 2024 505th lolgeny 891 93 124ms 22 Feb 2025 512th GolfingSuccess 🇬🇷 891 95 58ms 5 May 2022 512th Alex-x90 🇺🇸 891 95 60ms 4 Dec 2022 512th Mandrzejy 🇵🇱 891 95 53ms 22 Mar 2024 515th m-tkach 🇺🇦 891 117 25ms 7 May 2022 515th Lydxn 🇨🇦 891 117 26ms 7 May 2022 517th p-zubieta 890 48 299ms 6 Mar 2024 518th KatieLG 🇬🇧 889 60 10ms 4 May 2022 518th ScottHamper 889 60 10ms 5 May 2022 518th Re-Adventures 🇮🇳 889 60 10ms 5 May 2022 518th 0x24a537r9 889 60 10ms 29 Jul 2022 518th stefangabos 🇷🇴 889 60 10ms 19 Aug 2022 518th eranws 889 60 10ms 10 Sep 2022 518th GeorgeStechman 🇬🇧 889 60 10ms 26 Sep 2022 518th BloodStormKnight 889 60 10ms 15 Oct 2022 518th dzshn 889 60 11ms 3 Dec 2022 518th biocommando 🇫🇮 889 60 10ms 20 Dec 2022 518th Betuaredead 889 60 11ms 5 Jan 2023 518th piano-miles 889 60 10ms 16 Jan 2023 518th Yewzir 🇧🇪 889 60 12ms 12 Feb 2023 518th shellbertt 🇨🇦 889 60 11ms 26 Feb 2023 518th zakariamouhid 889 60 10ms 20 May 2023 518th raphaelimahorn 889 60 10ms 23 Aug 2023 518th jbt 889 60 10ms 25 Dec 2023 518th olleicua 🇺🇸 889 60 10ms 15 Feb 2024 518th HumanoidCPU 889 60 10ms 3 May 2024 518th dokutan 889 60 10ms 13 Aug 2024 518th LostSyntax21 🇬🇧 889 60 11ms 10 Sep 2024 518th xyangst 889 60 11ms 28 Sep 2024 518th a6166231 🇨🇳 889 60 10ms 15 May 2025 518th Protothor 889 60 9ms 8 Jul 2025 518th SebassNoob 889 60 10ms 5 Aug 2025 518th levinwinter 889 60 11ms 22 Oct 2025 518th Cube14yt 889 60 11ms 16 Nov 2025 518th gigaprofisi 🇺🇸 889 60 10ms 17 Nov 2025 518th amazingalek 🇳🇴 889 60 10ms 20 Dec 2025 518th shandriy 889 60 10ms 23 Jan 2026 518th spidunno 889 60 10ms 14 days ago 549th Steffan153 🇫🇮 889 80 31ms 15 Nov 2022 549th error256 889 80 121ms 8 Apr 2025 551st Lydxn 🇨🇦 888 107 293ms 6 May 2022 551st CaedenHarper 🇨🇦 888 107 288ms 5 Oct 2025 553rd canissimia 🇦🇶 888 204 16ms 25 Nov 2023 554th Shanethegamer 🇺🇸 887 61 4ms 31 Oct 2022 554th MeWhenI 🇻🇦 887 61 4ms 4 Nov 2022 556th P-Quentin 🇫🇷 887 63 20ms 3 Aug 2022 556th kaptsanovb 887 63 25ms 20 Apr 2023 556th fkantelberg 887 63 19ms 14 Jul 2023 556th VictorStenvers 🇳🇱 887 63 22ms 13 Nov 2023 556th 1231234md5 🇨🇳 887 63 20ms 14 Dec 2023 First Prev 481–560 of 3,587 Next Last