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        riddles >> what happened >> The Robotic Guards
        
(Message started by: daemonturk on Feb 23^rd, 2009, 1:05am)

Title: The Robotic Guards
Post by daemonturk on Feb 23^rd, 2009, 1:05am

This riddle came from a friend of mine, and it will be my last one for today.

A man wishes to cross a bridge, from side A to B.

A:=================================:B

A physically invulnerable guard stands at each end of the bridge, who escorts you back to their side if they see you crossing. At 1 hour intervals, they take 10-second naps, but it takes you 20 seconds to completely cross the bridge (at your maximum sprinting speed). How do you cross the bridge?

Title: Re: The Robotic Guards
Post by cheesepuff on Feb 23^rd, 2009, 1:32am

Prepare a Nintendo DS, you got a bit over 59 minutes to blow

Title: Re: The Robotic Guards
Post by daemonturk on Feb 23^rd, 2009, 1:37am

No... >:(

Title: Re: The Robotic Guards
Post by towr on Feb 23^rd, 2009, 1:38am

The obvious solution is to avoid being seen. So train to become a ninja and then cross the bridge unseen.

[hide]But turning around halfway also works.[/hide]

Title: Re: The Robotic Guards
Post by daemonturk on Feb 23^rd, 2009, 1:39am

Correct, was this already posted? :-[

Title: Re: The Robotic Guards
Post by Grimbal on Feb 23^rd, 2009, 1:44am

Uh, yes. But I believe the guards weren't robots.

Another way would be to step on the bridge. Guard A will go and get you. Guard B will go and get A. The 3 of you end up on side B.

Title: Re: The Robotic Guards
Post by daemonturk on Feb 23^rd, 2009, 1:49am

Quote:

Uh, yes. But I believe the guards weren't robots.

The guards being invulnerable robots just clears up a lot of complications.

Quote:

Another way would be to step on the bridge. Guard A will go and get you. Guard B will go and get A. The 3 of you end up on side B.

The guards only escort humans back to their side. I should have worded that in.

Title: Re: The Robotic Guards
Post by towr on Feb 23^rd, 2009, 2:02am

[quote author=daemonturk link=board=riddles_whathappened;num=1235379922;start=0#4 date=02/23/09 at 01:39:43]Correct, was this already posted? :-[/quote]yup (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_whathappened;action=display;num=1054756078;)

You can search the forum here (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_whathappened;action=search). (Although you may need to set the maximum age back.) For this riddle it works to search on "guard bridge"

Title: Re: The Robotic Guards
Post by daemonturk on Feb 23^rd, 2009, 2:39am

... I'll have to resort to making up riddles soon :-/.

Title: Re: The Robotic Guards
Post by cheesepuff on Feb 23^rd, 2009, 3:08am

Ah. I thought they were facing out so they wouldn't see you on the bridge.

Anyways it's been a while since I've heard this riddle

And yeah, lots and lots of riddles have been posted.

Title: Re: The Robotic Guards
Post by Azgard on Feb 25^th, 2009, 7:09am

Sometimes it's a little tough to find riddles that haven't been posted in one form or another.