What is the nine dot puzzle?
Participants are presented with a set of dots arranged in a 3×3 grid and challenged to connect all nine dots, without lifting their pencil from the paper, using the fewest possible number of straight lines.
How do you do the 9 dot IQ?
The rules are simple; connect all 9 dots using a maximum of 4 straight lines without lifting your pen off the paper or retracing back over an existing line. Most people will see a square and mentally add lines around it creating the context with which to solve the puzzle.
What is the solution to the nine dot problem?
The solution involves looking outside the two-dimensional sheet of paper on which the nine dots are drawn and coning the paper three-dimensionally aligning the dots along a spiral, thus a single line can be drawn connecting all nine dots – which would appear as three lines in parallel on the paper, when flattened out.
Do you have to draw 4 straight lines to connect 9 dots?
To solve the problem, you need to join all nine dots by drawing no more than four straight lines. The straight lines must be continuous – i.e. you must not lift your pen from the paper once you start drawing. Don’t read any further until you’ve tried to solve the problem.
How do you draw nine dots on paper?
Use a pencil to draw four continuous straight line segments which go through the middle of all 9 dots without taking the pencil off the flat surface of the paper. You cannot fold the paper in any way.
How do you solve the nine dot puzzle?
The Nine Dot Puzzle Use a pencil to draw four continuous straight line segments which go through the middle of all 9 dots without taking the pencil off the paper. Solution Start at A go to B then C then D then E You need to draw line segments that go beyond the dots to solve the problem A B D C E The 9 dot puzzle is an old puzzle.
Are there any dots to join a line outside the puzzle?
There are no dots to join a line to outside the puzzle so they assume a boundary exists. It is assumed that doing this is outside the scope of the problem, even though the problem definition does not say you are not allowed to.