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	97	166ms	22 days ago
Collatz	retrohun	65	280ms	27 days ago
Collatz	kmathis22	101	125ms	24 Sep 2025
Collatz	DialFrost	65	138ms	7 Apr 2025
Collatz	CaedenHarper	3,232	3ms	22 Jan 2025
Collatz	penbuvt	84	240ms	8 Nov 2024
Collatz	jared-hughes	66	270ms	18 Sep 2024
Collatz	dokutan	72	150ms	15 Aug 2024
Collatz	rollershutter	82	179ms	11 Jul 2024
Collatz	HumanoidCPU	3,232	3ms	20 May 2024
Collatz	mrmena	97	161ms	20 Mar 2024
Collatz	trinityy-7	114	159ms	7 Mar 2024
Collatz	madeforlosers	124	378ms	26 Oct 2023
Collatz	msbranicky	137	507ms	11 Sep 2023
Collatz	MeWhenI	71	132ms	28 May 2023
Collatz	Shanethegamer	78	184ms	17 May 2023
Collatz	janbehrens	66	147ms	21 Apr 2023
Collatz	frankgraziano	67	175ms	20 Feb 2023
Collatz	datheia	121	252ms	24 Dec 2022
Collatz	dvargas46	🥉 52	83ms	22 Dec 2022
Collatz	Steffan153	55	78ms	21 Dec 2022
Collatz	Import-Meow	188	285ms	11 Sep 2022
Collatz	KatieLG-Transpiler	3,232	3ms	24 Jun 2022
Collatz	btjones0	66	1,211ms	21 Jun 2022
Collatz	Lydxn	🥇 49	65ms	28 May 2022
Collatz	saito-ta	🥇 49	61ms	13 May 2022
Collatz	primo-ppcg	🥉 52	213ms	5 May 2022
Collatz	KatieLG	3,232	4ms	4 May 2022
Collatz	JRaspass	3,232	4ms	4 May 2022