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 Dragon Curve 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 Dragon Curve 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 387th fuzzylojik-golf 🇺🇸 904 59 13ms 1 Jun 2025 387th acollett89 904 59 15ms 17 Jun 2025 387th iczelia 🇩🇪 904 59 12ms 23 Sep 2025 387th Yax42 🇫🇷 904 59 11ms 20 Jan 2026 387th Protothor 904 59 11ms 27 Mar 2026 406th edsrzf 🇳🇿 904 72 131ms 3 Jul 2025 407th Shanethegamer 🇺🇸 904 77 14ms 15 May 2023 408th marshallward 🇺🇸 904 83 40ms 10 May 2022 409th m-tkach 🇺🇦 904 90 31ms 7 Dec 2023 410th piano-miles 904 92 464ms 24 Feb 2026 411th kg583 🇺🇸 903 77 17ms 11 Mar 2026 412th edsrzf 🇳🇿 903 83 41ms 14 Jan 2025 412th kg583 🇺🇸 903 83 42ms 14 Feb 2025 414th krcs 🇵🇱 903 86 407ms 10 May 2022 414th billings7 🇬🇧 903 86 444ms 15 May 2022 414th revlayle 🇺🇸 903 86 444ms 7 Dec 2022 414th albanian-laundromat 🇺🇸 903 86 462ms 30 Sep 2025 418th Betuaredead 902 60 4ms 5 Jan 2023 418th Yewzir 🇧🇪 902 60 4ms 12 Feb 2023 418th Steffan153 🇫🇮 902 60 4ms 23 Feb 2023 418th GolfingSuccess 🇬🇷 902 60 4ms 16 Oct 2024 418th sean-niemann 🇺🇸 902 60 9ms 7 Mar 2025 423rd shellbertt 🇨🇦 902 62 21ms 4 May 2022 423rd ZakkkkAttackkkk 🇵🇭 902 62 21ms 5 May 2022 423rd annaproxy 902 62 21ms 8 Jun 2022 423rd bob-th 902 62 21ms 9 Jul 2022 423rd btjones0 902 62 27ms 15 Jul 2022 423rd tri1212 🇻🇳 902 62 21ms 18 Jul 2022 423rd fredrik-bakke 🇳🇴 902 62 21ms 5 Oct 2022 423rd jakobkordez 🇸🇮 902 62 19ms 19 Oct 2022 423rd Fishron 902 62 20ms 29 Nov 2022 423rd KatieLG 🇬🇧 902 62 24ms 11 Dec 2022 423rd ItsMeNoobieboy 902 62 19ms 20 Dec 2022 423rd firegene 🇮🇪 902 62 21ms 3 Jan 2023 423rd ljweel 902 62 20ms 13 Feb 2023 423rd 2011-Chan-Ethan 902 62 21ms 9 Jul 2023 423rd elgan65536 🇺🇸 902 62 23ms 18 Nov 2023 423rd Dataen 902 62 19ms 16 Jan 2024 423rd Yewzir 🇧🇪 902 62 48ms 5 Apr 2024 423rd cuboids 902 62 21ms 11 Jul 2024 423rd wuzekai518 902 62 25ms 26 Jul 2024 423rd abhishekg999 902 62 49ms 17 Sep 2024 423rd lifthrasiir 🇰🇷 902 62 21ms 16 Nov 2024 423rd Artemis21 🇬🇧 902 62 22ms 17 Jan 2025 423rd lolgeny 902 62 20ms 22 Feb 2025 423rd keelimeguy 🇺🇸 902 62 20ms 15 May 2025 423rd DoubleUynn 902 62 22ms 25 Jun 2025 423rd madeforlosers 902 62 22ms 18 days ago 449th Kacarott 🇦🇺 902 79 121ms 13 Jun 2024 450th MeWhenI 🇻🇦 901 63 209ms 5 May 2022 451st Lydxn 🇨🇦 901 64 181ms 1 Apr 2023 452nd stefangimmillaro 901 92 132ms 24 Oct 2023 452nd inverseLorentz 🇦🇺 901 92 129ms 27 May 2024 452nd sean-niemann 🇺🇸 901 92 135ms 8 Jun 2025 452nd ian-h-chamberlain 🇺🇸 901 92 136ms 23 Nov 2025 456th michael-pruglo 🇺🇦 901 94 62ms 5 Jul 2022 456th zygoloid 901 94 62ms 5 Aug 2024 456th AdrienHache 🇫🇷 901 94 60ms 27 Dec 2025 459th MeWhenI 🇻🇦 900 71 139ms 20 Aug 2024 460th Steffan153 🇫🇮 900 82 42ms 1 Apr 2023 460th sean-niemann 🇺🇸 900 82 42ms 12 Jul 2024 462nd Lydxn 🇨🇦 899 49 39ms 4 May 2022 462nd JayXon 🇺🇸 899 49 40ms 17 Oct 2022 462nd GrayJoKing 🇦🇺 899 49 44ms 15 Nov 2022 462nd radarek 🇵🇱 899 49 216ms 26 Aug 2025 466th Lydxn 🇨🇦 899 70 101ms 7 May 2022 467th m-tkach 🇺🇦 899 72 111ms 16 Oct 2022 467th GrayJoKing 🇦🇺 899 72 112ms 22 Oct 2022 467th emplv 🇱🇻 899 72 111ms 27 Oct 2022 467th sean-niemann 🇺🇸 899 72 126ms 7 Mar 2025 471st DialFrost 🇸🇬 898 74 16ms 22 Feb 2026 471st Steffan153 🇫🇮 898 74 16ms 22 Feb 2026 471st GrayJoKing 🇦🇺 898 74 16ms 22 Feb 2026 471st GolfingSuccess 🇬🇷 898 74 16ms 24 Feb 2026 471st snoozingnewt 🇨🇦 898 74 16ms 4 Mar 2026 471st edsrzf 🇳🇿 898 74 16ms 9 Mar 2026 477th albanian-laundromat 🇺🇸 897 106 329ms 22 Dec 2025 478th Lydxn 🇨🇦 896 69 6ms 12 Sep 2022 478th GrayJoKing 🇦🇺 896 69 7ms 12 Sep 2022 478th btnlq 896 69 7ms 24 Sep 2022 First Prev 401–480 of 3,753 Next Last