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

Hole	Golfer	Chars	Time	Submitted
Collatz	jusaka	6,239	8ms	28 hours ago
Collatz	NameRandomString	3,232	3ms	7 days ago
Collatz	Steffan153	🥇 49	66ms	10 days ago
Collatz	madeforlosers	92	128ms	24 days ago
Collatz	vhoulbreque	78	120ms	13 Nov 2025
Collatz	snoozingnewt	97	157ms	8 Oct 2025
Collatz	retrohun	65	245ms	3 Oct 2025
Collatz	kmathis22	101	125ms	24 Sep 2025
Collatz	DialFrost	65	134ms	7 Apr 2025
Collatz	CaedenHarper	3,232	3ms	22 Jan 2025
Collatz	penbuvt	84	245ms	8 Nov 2024
Collatz	jared-hughes	66	266ms	18 Sep 2024
Collatz	dokutan	72	151ms	15 Aug 2024
Collatz	rollershutter	82	169ms	11 Jul 2024
Collatz	HumanoidCPU	3,232	3ms	20 May 2024
Collatz	mrmena	97	139ms	20 Mar 2024
Collatz	trinityy-7	114	153ms	7 Mar 2024
Collatz	msbranicky	137	523ms	11 Sep 2023
Collatz	MeWhenI	71	127ms	28 May 2023
Collatz	Shanethegamer	78	168ms	17 May 2023
Collatz	janbehrens	66	148ms	21 Apr 2023
Collatz	frankgraziano	67	139ms	20 Feb 2023
Collatz	datheia	121	255ms	24 Dec 2022
Collatz	dvargas46	52	87ms	22 Dec 2022
Collatz	Import-Meow	188	259ms	11 Sep 2022
Collatz	KatieLG-Transpiler	3,232	3ms	24 Jun 2022
Collatz	btjones0	66	1,158ms	21 Jun 2022
Collatz	Lydxn	🥇 49	66ms	28 May 2022
Collatz	saito-ta	🥇 49	63ms	13 May 2022
Collatz	primo-ppcg	52	219ms	5 May 2022
Collatz	KatieLG	3,232	3ms	4 May 2022
Collatz	JRaspass	3,232	3ms	4 May 2022