Collatz in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 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 Scoring Bytes Chars Language All ><> 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 Experimental Language 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 Hole All 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole 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 Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 440th firegene 🇮🇪 913 73 27 Sep 2022 440th OhmNomNom 913 73 7 Oct 2022 440th 0-4849 913 73 1 Nov 2022 440th M0PKOBKA 913 73 19 Dec 2022 440th calumacutt 913 73 19 Dec 2022 440th thehylian 913 73 2 Jan 2023 440th fynnkroeger 913 73 6 Jan 2023 440th shellbertt 🇨🇦 913 73 13 Jan 2023 440th hunt-g 913 73 4 Feb 2023 440th ljweel 913 73 13 Feb 2023 440th jmerle 🇳🇱 913 73 16 Feb 2023 440th TaserTheFox 🇺🇸 913 73 14 Mar 2023 440th pinguicula 913 73 6 Apr 2023 440th TheoKeller1 913 73 11 Jun 2023 440th fkantelberg 913 73 16 Jul 2023 440th Mikey-Beep 🇬🇧 913 73 31 Aug 2023 440th eiburns 913 73 9 Oct 2023 440th htareque 913 73 13 Oct 2023 440th wearsunscreen 913 73 18 Oct 2023 440th bzijlema 🇳🇱 913 73 25 Oct 2023 440th Grrisly 913 73 10 Nov 2023 440th m42km 913 73 11 Nov 2023 440th GeneralPoxter 913 73 7 Dec 2023 440th logvp 913 73 12 Jan 2024 440th JoaoFelipe3 913 73 13 Jan 2024 440th ehulinsky 🇺🇸 913 73 16 Feb 2024 440th Lewenhaupt 913 73 23 Feb 2024 440th Yewzir 🇧🇪 913 73 5 Apr 2024 440th stertooy 🇧🇪 913 73 9 Jun 2024 440th cuboids 913 73 11 Jul 2024 440th jipsong 🇩🇪 913 73 23 Jul 2024 440th mattyhempstead 913 73 6 Oct 2024 440th wh3n3v3r 🇨🇿 913 73 18 Nov 2024 440th klixel 🇨🇦 913 73 18 Nov 2024 440th tjwrenn 913 73 10 Dec 2024 440th nullie 913 73 19 Dec 2024 440th ryyyn 🇺🇸 913 73 7 Jan 2025 440th maxgodfrey2004 🇨🇦 913 73 13 Feb 2025 440th lolgeny 913 73 22 Feb 2025 440th andrewjc2000 913 73 23 Feb 2025 440th Languag3 913 73 27 Feb 2025 440th Bulmenisaurus 913 73 2 Mar 2025 440th souta-1326 913 73 1 Apr 2025 440th BenjaminHGong 913 73 26 May 2025 440th FEZfan 🇦🇺 913 73 11 Jul 2025 440th wuduculfre 913 73 28 Jul 2025 440th BREMAUCY 🇫🇷 913 73 24 Aug 2025 498th ovs-code 🇩🇪 913 75 12 Sep 2024 498th Kacarott 🇦🇺 913 75 13 Sep 2024 500th Lydxn 🇨🇦 913 81 1 Apr 2023 501st andersk 🇺🇸 913 91 25 Oct 2022 501st Super-Pizza 🇨🇦 913 91 4 Dec 2022 501st klixel 🇨🇦 913 91 20 May 2023 501st lynn 913 91 6 Jul 2024 501st edsrzf 🇳🇿 913 91 29 Nov 2024 501st DialFrost 🇸🇬 913 91 7 Apr 2025 507th lynn 912 78 5 May 2022 508th nai62 911 69 27 Aug 2022 509th GrayJoKing 🇦🇺 911 71 10 Aug 2023 510th tailorspy 911 93 27 May 2024 510th sean-niemann 🇺🇸 911 93 9 Jun 2025 512th GolfingSuccess 🇬🇷 910 64 14 Dec 2024 512th MeWhenI 🇻🇦 910 64 24 Dec 2024 514th MeWhenI 🇻🇦 909 63 5 May 2022 515th Shanethegamer 🇺🇸 909 77 15 May 2023 516th marshallward 🇺🇸 909 83 10 May 2022 517th primo-ppcg 🇹🇭 909 93 7 May 2022 517th AlephSquirrel 909 93 21 Jan 2023 517th kg583 🇺🇸 909 93 26 Dec 2024 517th CLOStrophobic 🇮🇹 909 93 17 Jan 2025 517th edsrzf 🇳🇿 909 93 3 Jul 2025 522nd edsrzf 🇳🇿 908 72 3 Jul 2025 523rd DialFrost 🇸🇬 908 76 3 Aug 2025 524th ovs-code 🇩🇪 908 84 25 Sep 2022 524th GrayJoKing 🇦🇺 908 84 11 Aug 2023 Prev 451–525 of 3,355 Next
firegene
🇮🇪
OhmNomNom
0-4849
M0PKOBKA
calumacutt
thehylian
fynnkroeger
shellbertt
🇨🇦
hunt-g
ljweel
jmerle
🇳🇱
TaserTheFox
🇺🇸
pinguicula
TheoKeller1
fkantelberg
Mikey-Beep
🇬🇧
eiburns
htareque
wearsunscreen
bzijlema
🇳🇱
Grrisly
m42km
GeneralPoxter
logvp
JoaoFelipe3
ehulinsky
🇺🇸
Lewenhaupt
Yewzir
🇧🇪
stertooy
🇧🇪
cuboids
jipsong
🇩🇪
mattyhempstead
wh3n3v3r
🇨🇿
klixel
🇨🇦
tjwrenn
nullie
ryyyn
🇺🇸
maxgodfrey2004
🇨🇦
lolgeny
andrewjc2000
Languag3
Bulmenisaurus
souta-1326
BenjaminHGong
FEZfan
🇦🇺
wuduculfre
BREMAUCY
🇫🇷
ovs-code
🇩🇪
Kacarott
🇦🇺
Lydxn
🇨🇦
andersk
🇺🇸
Super-Pizza
🇨🇦
lynn
edsrzf
🇳🇿
DialFrost
🇸🇬
nai62
GrayJoKing
🇦🇺
tailorspy
sean-niemann
🇺🇸
GolfingSuccess
🇬🇷
MeWhenI
🇻🇦
Shanethegamer
🇺🇸
marshallward
🇺🇸
primo-ppcg
🇹🇭
AlephSquirrel
kg583
🇺🇸
CLOStrophobic
🇮🇹