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 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 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 Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal

Bytes Chars

Hole	Golfer	Bytes	Submitted
Collatz	CaedenHarper	3,240	4 days ago
Collatz	Kenna-Blackburn	81	8 Jul 2025
Collatz	kaascevich	72	8 Jul 2025
Collatz	JayXon	🥇 68	4 Mar 2025
Collatz	The-Wolfson	94	7 Feb 2025
Collatz	madeforlosers	74	21 Nov 2024
Collatz	Mabeloid	3,240	21 Sep 2024
Collatz	dokutan	83	30 Jul 2024
Collatz	sean-niemann	71	12 Jul 2024
Collatz	HumanoidCPU	73	7 May 2024
Collatz	ovs-code	74	17 Apr 2024
Collatz	MWI-polygolf	73	6 Dec 2023
Collatz	wearsunscreen	112	19 Oct 2023
Collatz	msbranicky	83	13 Sep 2023
Collatz	snoozingnewt	85	11 Sep 2023
Collatz	stackotter	74	29 May 2023
Collatz	Shanethegamer	71	16 May 2023
Collatz	bwat2	74	31 Mar 2023
Collatz	steffan-polygolf	73	23 Feb 2023
Collatz	MeWhenI	🥇 68	23 Feb 2023
Collatz	Steffan153	71	23 Feb 2023
Collatz	StronkCheese	95	18 Feb 2023
Collatz	Yewzir	83	12 Feb 2023
Collatz	KatieLG	74	15 Jan 2023
Collatz	Betuaredead	74	6 Jan 2023
Collatz	retrohun	3,240	27 Dec 2022
Collatz	mtirado1	74	24 Dec 2022
Collatz	gavinmorrow	230	20 Dec 2022
Collatz	stefangimmillaro	71	2 Oct 2022
Collatz	eshilo-draper	75	6 Sep 2022
Collatz	KatieLG-Transpiler	4,251	10 Jul 2022
Collatz	johnnythedoggie	72	13 May 2022
Collatz	Lydxn	🥉 70	7 May 2022
Collatz	m-tkach	81	4 May 2022