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Top Questions
11
votes
Why is this proof for the four color theorem considered wrong?
graph-theory
solution-verification
coloring
planar-graphs
asked Feb 11, 2022 at 10:55
math.stackexchange.com
10
votes
How many colors does it take?
graph-theory
polyomino
asked Feb 11, 2019 at 9:54
puzzling.stackexchange.com
Top Answers
40
using WebAssembly in chrome extension
stackoverflow.com
21
Seeing the forest for the trees and all that jazz
puzzling.stackexchange.com
21
Multiplication Homework
puzzling.stackexchange.com
20
Why do less-bright students end up in Slytherin?
scifi.stackexchange.com
16
9 trees in 7 rows with 3 trees in each row
puzzling.stackexchange.com
15
Toy boat on a string
puzzling.stackexchange.com
15
How to solve this 0hn0 position?
puzzling.stackexchange.com
15
This is taking too long!
puzzling.stackexchange.com
14
Which of these numbers does not belong to the group?
puzzling.stackexchange.com
13
The mother of all age-of-the-captain riddles
puzzling.stackexchange.com
13
How could Larry get his friends on a plane without knowing their weights?
puzzling.stackexchange.com
11
Put a number on both sides
puzzling.stackexchange.com
9
How to become president of the United States of America
puzzling.stackexchange.com
9
Divisible by seventeen
puzzling.stackexchange.com
9
Ten girls around a table
puzzling.stackexchange.com
7
What is shiny and makes people sad when it falls?
puzzling.stackexchange.com
6
Democrats and Republicans in a Circle
puzzling.stackexchange.com
6
The Non-Pythagorean Theorem
puzzling.stackexchange.com
6
The game of Shafiqa and Habibi
puzzling.stackexchange.com
6
JonMark Perry's Grid Logic Puzzle
puzzling.stackexchange.com
6
Which two students spoke wrongly?
puzzling.stackexchange.com
6
Half of me exist, rid-dle
puzzling.stackexchange.com
6
The Legend of Four
puzzling.stackexchange.com
6
The revenge of 3D light bulbs
puzzling.stackexchange.com
6
Chemistry Riddle
puzzling.stackexchange.com
6
A Tetris puzzle made with love
puzzling.stackexchange.com
6
The apps playground
puzzling.stackexchange.com
6
What fraction is shaded?
puzzling.stackexchange.com
6
Rolling cube on an infinite chessboard
puzzling.stackexchange.com
6
Where to start with a large crack the lock puzzle like this?
puzzling.stackexchange.com
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