Collatz in Python in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 638th Ugoran 633 90 20ms 19 Nov 2022 638th PATTRIM 633 90 17ms 5 Jan 2023 638th charliegaming 633 90 19ms 3 Oct 2023 638th lhulinsky 633 90 20ms 22 Oct 2024 638th bthalheim 633 90 21ms 6 Dec 2024 638th SinArieh 633 90 25ms 4 May 2025 638th islptng 633 90 23ms 7 Jul 2025 638th Mr-McChicken 633 90 17ms 4 Oct 2025 638th NoneTheFewer 633 90 18ms 4 Dec 2025 650th AbelPelser 626 91 22ms 3 Jul 2022 650th Seis 626 91 19ms 9 Dec 2022 650th r-i-c-e 626 91 20ms 9 Jul 2023 650th joshcors 626 91 17ms 30 Jun 2024 650th resoNathan 626 91 16ms 9 Jul 2024 650th jameswmccarty 626 91 20ms 24 Sep 2024 650th hamilton-bonds 626 91 17ms 12 Nov 2024 650th Wonamm 626 91 29ms 14 Feb 2025 658th TimLeffke 620 92 22ms 17 Aug 2022 658th Rythoka 620 92 15ms 17 Oct 2022 658th UriyaBA 620 92 17ms 19 Mar 2023 658th VladislavGitter 🇪🇸 620 92 19ms 14 Nov 2023 658th ridingqwerty 🇺🇸 620 92 16ms 22 Dec 2023 658th Thonoton 620 92 19ms 1 Feb 2024 658th OCNeve 620 92 20ms 17 Jun 2024 658th themoonisacheese 620 92 24ms 25 Feb 2025 658th BabySharkHi 620 92 23ms 22 Apr 2025 658th arjunarya1 620 92 16ms 28 Aug 2025 658th TJK-S 620 92 19ms 10 Oct 2025 669th Bananapants22 613 93 26ms 4 Sep 2022 669th jaxmattfair 🇺🇸 613 93 19ms 10 Jan 2023 669th fenix-bear 613 93 20ms 18 Nov 2023 669th epic-programmer-guy 613 93 22ms 22 Dec 2023 669th brimstonetrader 613 93 24ms 18 Nov 2024 669th HunterC14 613 93 26ms 10 Feb 2026 675th atazzam 🇺🇸 606 94 17ms 18 May 2022 675th rohangpta 606 94 17ms 8 Aug 2022 675th shinylego 606 94 19ms 14 Sep 2022 675th sgaltair 606 94 20ms 4 Nov 2022 675th TotoAJ 606 94 20ms 15 Dec 2023 675th Gusic06 606 94 19ms 6 May 2024 675th kyleyarwood 606 94 21ms 6 Oct 2024 675th jj0786-cell 606 94 20ms 1 Apr 2025 675th griffinschreiber 606 94 20ms 1 Apr 2025 675th o800 606 94 20ms 17 Nov 2025 685th felixcroc 600 95 19ms 30 Mar 2023 685th Pyro569 600 95 18ms 4 Jul 2023 685th rm-rf-innocence 600 95 20ms 19 Dec 2023 685th Bit125 600 95 19ms 30 Jan 2024 685th aalec 600 95 21ms 25 Apr 2024 685th strogor 600 95 20ms 13 Jun 2025 685th cthierfelder 🇲🇨 600 95 20ms 17 Jul 2025 685th ThomasDelepine 600 95 21ms 29 Oct 2025 693rd karhuthebear 594 96 24ms 9 May 2022 693rd qwjhvbxi 594 96 21ms 6 Feb 2024 693rd alfonsoalves 594 96 20ms 21 Jul 2024 693rd jeff-re 594 96 14ms 1 Apr 2025 697th a-penton 588 97 17ms 22 Sep 2022 697th jrbud 588 97 19ms 6 Jan 2024 697th befoster 588 97 22ms 22 Feb 2024 697th joshua-el-samalouti 🇩🇪 588 97 19ms 26 May 2024 697th luca1339 588 97 20ms 10 Jun 2024 702nd lukemalek 582 98 14ms 10 Oct 2022 702nd UltimateGuy0987 582 98 20ms 14 Oct 2022 702nd TheLazySquid 582 98 21ms 20 Dec 2022 702nd StronkCheese 🇺🇸 582 98 20ms 13 Mar 2023 702nd Anthony-Williams-06 582 98 27ms 17 Oct 2023 702nd abcdhhhh 582 98 15ms 27 Aug 2024 702nd OSYCh314 🇦🇺 582 98 26ms 16 Nov 2024 702nd cole-wilson 582 98 19ms 9 Dec 2024 702nd Akilles1 582 98 20ms 15 May 2025 702nd Hyperoplex145 582 98 21ms 11 Nov 2025 712th LukeRichardson-dev 576 99 15ms 12 May 2022 712th Tagfox 576 99 20ms 18 Jul 2022 712th gabrielsqw 576 99 23ms 24 Oct 2023 712th sciencedjinn 576 99 19ms 8 Nov 2024 712th MrNiknoc 576 99 18ms 15 Jun 2025 717th OppositeShark 570 100 18ms 19 Jul 2022 717th NOS4A5I 570 100 18ms 10 Jan 2023 717th lomarbrick 570 100 18ms 16 May 2023 717th karlaacastro44 570 100 18ms 5 May 2025 First Prev 641–720 of 837 Next Last
Ugoran
PATTRIM
charliegaming
lhulinsky
bthalheim
SinArieh
islptng
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NoneTheFewer
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Seis
r-i-c-e
joshcors
resoNathan
jameswmccarty
hamilton-bonds
Wonamm
TimLeffke
Rythoka
UriyaBA
VladislavGitter
🇪🇸
ridingqwerty
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Thonoton
OCNeve
themoonisacheese
BabySharkHi
arjunarya1
TJK-S
Bananapants22
jaxmattfair
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fenix-bear
epic-programmer-guy
brimstonetrader
HunterC14
atazzam
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rohangpta
shinylego
sgaltair
TotoAJ
Gusic06
kyleyarwood
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o800
felixcroc
Pyro569
rm-rf-innocence
Bit125
aalec
strogor
cthierfelder
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ThomasDelepine
karhuthebear
qwjhvbxi
alfonsoalves
jeff-re
a-penton
jrbud
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lukemalek
UltimateGuy0987
TheLazySquid
StronkCheese
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Anthony-Williams-06
abcdhhhh
OSYCh314
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cole-wilson
Akilles1
Hyperoplex145
LukeRichardson-dev
Tagfox
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sciencedjinn
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lomarbrick
karlaacastro44