All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Alphabetic Numbers Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Chess Move Validation Christmas Trees Collatz Connect Four 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 Nim 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) Taxicab Numbers Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle Ulam Sequence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Chess960 Decoder Chess960 Encoder Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder Langton’s Ant Lyndon Factorization NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Thue–Morse Constant Turtle Tutorial Yellowstone Permutation 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 iogii 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 Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal ZuzuScript

Bytes Chars

Hole	Golfer	Chars	Time	Submitted
Collatz	scpchicken	4,266	332ms	16 Aug 2026
Collatz	oaiqjuy	182	388ms	19 May 2026
Collatz	madeforlosers	3,268	365ms	22 Apr 2026
Collatz	kmathis22	216	408ms	14 Apr 2026
Collatz	dokutan	173	380ms	12 Apr 2026
Collatz	GolfingSuccess	🥇 142	386ms	6 Dec 2025
Collatz	albanian-laundromat	153	356ms	15 Oct 2025
Collatz	KatieLG	2,041	398ms	7 Jun 2025
Collatz	emgordon154	🥇 142	393ms	10 Apr 2025
Collatz	DialFrost	🥇 142	418ms	28 Mar 2025
Collatz	rucin93	158	396ms	28 Mar 2025
Collatz	MeWhenI	145	357ms	28 Mar 2025
Collatz	Shanethegamer	🥇 142	379ms	27 Mar 2025
Collatz	ovs-code	150	389ms	27 Mar 2025
Collatz	voytxt	156	411ms	28 Jan 2025
Collatz	CaedenHarper	3,267	359ms	25 Jan 2025
Collatz	HumanoidCPU	3,267	350ms	13 Jan 2025