## Welcome to BrainDen.com - Brain Teasers Forum

 Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account. As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends. Of course, you can also enjoy our collection of amazing optical illusions and cool math games. If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top. If you have a website, we would appreciate a little link to BrainDen. Thanks and enjoy the Den :-)
Guest Message by DevFuse

# Sequence puzzle

Best Answer rookie1ja, 20 June 2007 - 05:22 PM

Spoiler for Solution
Go to the full post

33 replies to this topic

### #31 Dinghus

Dinghus

Newbie

• Members
• 19 posts

Posted 29 August 2008 - 06:06 PM

One small problem with the solution, you are no longer following the question of reading left to right. You are grouping. Thus if grouping is allowed, and it appears to be because that is the answer

1
11
21
1211
3112
132112
312213

and so on would be the solution

IF we stick with reading left to right it would become
1
11
21
1211
11121111
11111112111111

In other words you would be saying "one 1, one 2, one 1, one 1"

• 0

### #32 Prof. Templeton

Prof. Templeton

Senior Member

• Members
• 1664 posts
• Gender:Male

Posted 29 August 2008 - 06:24 PM

One small problem with the solution, you are no longer following the question of reading left to right. You are grouping. Thus if grouping is allowed, and it appears to be because that is the answer

1
11
21
1211
3112
132112
312213

and so on would be the solution

IF we stick with reading left to right it would become
1
11
21
1211
11121111
11111112111111

In other words you would be saying "one 1, one 2, one 1, one 1"

Your solution does not follow the pattern of the original sequence. The solution posted in post #2 is the only possible. If we follow your reasoning the sequence would look like this...
1
11
1111
11111111
and so on.

Edited by Prof. Templeton, 29 August 2008 - 06:24 PM.

• 0

### #33 DoctorC

DoctorC

Newbie

• Members
• 5 posts

Posted 14 August 2011 - 06:01 PM

Ok, so you stated the answer, but no one's really clearly EXPLAINED how they got the answer. I'm not very good at this type of puzzle so I apologize if I'm being a little dense with this!
• 0

### #34 sarahjonze

sarahjonze

Newbie

• Members
• 1 posts

Posted 21 August 2011 - 10:31 PM

<p>Have you ever played Minesweeper? As a game the answer would be </p>
<p> </p>
<p> </p>
<p> </p>
<pre>
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
2 2 1 1 1 1
1 1 1 1 2 2 1 1</pre>
<p> </p>
• 0

#### 0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users