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	Bytes	Time	Submitted
Collatz	scpchicken	4,236	44ms	16 Aug 2026
Collatz	oaiqjuy	115	39ms	19 May 2026
Collatz	madeforlosers	116	43ms	13 Apr 2026
Collatz	dieggsy	107	44ms	10 Apr 2026
Collatz	Steffan153	91	40ms	12 Feb 2026
Collatz	Zach1031	121	42ms	17 Nov 2025
Collatz	gigaprofisi	3,235	41ms	5 Nov 2025
Collatz	ian-h-chamberlain	104	43ms	2 Nov 2025
Collatz	kmathis22	145	41ms	24 Sep 2025
Collatz	CaedenHarper	3,235	41ms	16 Aug 2025
Collatz	AlephSquirrel	107	46ms	21 Mar 2025
Collatz	CLOStrophobic	🥉 89	42ms	14 Feb 2025
Collatz	kg583	🥇 83	44ms	14 Feb 2025
Collatz	DialFrost	91	44ms	14 Feb 2025
Collatz	Shanethegamer	91	42ms	13 Feb 2025
Collatz	MeWhenI	90	44ms	13 Feb 2025
Collatz	edsrzf	🥇 83	42ms	14 Jan 2025
Collatz	Mabeloid	3,235	42ms	17 Sep 2024
Collatz	dokutan	107	44ms	8 Sep 2024
Collatz	btjones0	122	46ms	25 Aug 2024
Collatz	HumanoidCPU	3,235	41ms	25 Aug 2024
Collatz	KatieLG	3,235	41ms	22 Aug 2024