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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 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	Chars	Time	Submitted
Collatz	dokutan	68	5ms	27 hours ago
Collatz	HumanoidCPU	4,233	1ms	8 days ago
Collatz	CaedenHarper	4,233	1ms	8 days ago
Collatz	StronkCheese2	88	4ms	8 days ago
Collatz	kmathis22	76	4ms	5 Sep 2025
Collatz	edsrzf	61	4ms	4 Jul 2025
Collatz	frankgraziano	66	4ms	20 Apr 2025
Collatz	madeforlosers	70	4ms	21 Nov 2024
Collatz	DialFrost	64	5ms	10 Jul 2024
Collatz	sean-niemann	🥇 60	5ms	10 Jul 2024
Collatz	rucin93	🥇 60	4ms	10 Jul 2024
Collatz	KrausRaus	72	7ms	25 Mar 2024
Collatz	JayXon	🥇 60	4ms	29 Jan 2024
Collatz	Steffan153	🥇 60	5ms	28 Jan 2024
Collatz	GolfingSuccess	🥇 60	5ms	16 Nov 2023
Collatz	wearsunscreen	85	4ms	19 Oct 2023
Collatz	msbranicky	75	4ms	11 Oct 2023
Collatz	Lydxn	🥇 60	4ms	11 Oct 2023
Collatz	GrayJoKing	🥇 60	5ms	11 Oct 2023
Collatz	MeWhenI	65	3ms	10 Oct 2023
Collatz	ovs-code	🥇 60	4ms	9 Oct 2023
Collatz	Yewzir	65	4ms	9 Oct 2023
Collatz	Shanethegamer	61	4ms	9 Oct 2023
Collatz	snoozingnewt	112	4ms	8 Oct 2023
Collatz	KatieLG-Transpiler	4,237	1ms	8 Oct 2023
Collatz	KatieLG	4,233	1ms	8 Oct 2023