top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

Draw 4 straight lines and try and cover all 9 the dots.

+3 votes
2,244 views

.Draw 9 dots on a page, in the shape of three rows of three dots to form a square. Now place your pen on the page, draw 4 straight lines and try and cover all the dots.

posted Nov 10, 2013 by Mona Sharma

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button
Generalized Solution

No. of Dots    Required Straight Lines
3 x 3               (3 + 1) = 4
4 x 4               (4 + 2) = 6
5 x 5               (5 + 3) = 8
6 x 6               (6 + 4) = 10
n x n               (n+ (n - 2)) = 2n - 2

2 Answers (Check Answer ▼)





Similar Puzzles
0 votes

Using only 3 straight lines and without lifting your pencil, can you connect all the dots?

Dots Puzzle

0 votes

Can you solve the 12 dot puzzle? The challenge is to connect every dot with five straight lines. However, each line must connect to the last (think about a pen you cannot pick up from the paper). The twist to this is that the last line must end at the beginning of the first line.

Connect 12 dots with five straight lines

+2 votes

Nine dots are placed in three rows of each three dots, as shown in the picture. These nine dots must be connected by four straight, connected lines (i.e. without 'lifting up the pen' in between).
enter image description here

0 votes

You have three houses or squares drawn on paper and below them three smaller squares representing gas, water, and electric. Can you draw a line and get each utility into every house (9) total lines, without crossing over any line?

enter image description here

...