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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 Morse Decoder Morse Encoder 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal

Bytes Chars

Hole	Golfer	Bytes	Time	Submitted
Collatz	snoozingnewt	90	192ms	27 days ago
Collatz	CaedenHarper	3,235	150ms	16 Aug 2025
Collatz	edsrzf	72	150ms	3 Jul 2025
Collatz	dokutan	79	146ms	20 Mar 2025
Collatz	janAkali	77	147ms	12 Feb 2025
Collatz	sean-niemann	🥇 71	151ms	9 Jan 2025
Collatz	Mabeloid	3,235	170ms	22 Sep 2024
Collatz	HumanoidCPU	3,235	138ms	20 May 2024
Collatz	steffan-polygolf	74	150ms	14 Feb 2024
Collatz	MWI-polygolf	80	147ms	6 Dec 2023
Collatz	madeforlosers	94	161ms	26 Oct 2023
Collatz	msbranicky	90	142ms	3 Oct 2023
Collatz	MeWhenI	🥇 71	153ms	8 Aug 2023
Collatz	Shanethegamer	🥇 71	128ms	15 May 2023
Collatz	Ripick	73	143ms	8 May 2023
Collatz	Steffan153	🥇 71	145ms	9 Mar 2023
Collatz	Betuaredead	101	158ms	6 Jan 2023
Collatz	retrohun	9,225	191ms	27 Dec 2022
Collatz	destofr	130	142ms	19 Dec 2022
Collatz	KatieLG-Transpiler	3,280	413ms	24 Jun 2022
Collatz	JayXon	🥇 71	133ms	8 May 2022
Collatz	GrayJoKing	🥇 71	153ms	8 May 2022
Collatz	Lydxn	🥇 71	142ms	7 May 2022
Collatz	MichalMarsalek	🥇 71	153ms	5 May 2022
Collatz	KatieLG	3,235	138ms	4 May 2022