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More ways to get Braingle...

Four Houses at an Intersection

Logic puzzles require you to think. You will have to be logical in your reasoning.

 

Puzzle ID:#49260
Fun:*** (2.69)
Difficulty:** (1.8)
Category:Logic
Submitted By:Scorefiretau***!!

 

 

 



At a + shaped intersection, four different-coloured houses are at the four corners of the intersection so that each house is separated by a road. All you know about the colours of the houses is:

1. The blue house is directly north of the purple house.

2. The orange house is directly west of the green house.

What colours are the two houses that are across the road from the green house?


Answer

Purple and blue.

It is impossible for north to align with the roads, but if north is across the diagonal then it works out. If north went in the direction from the bottom left to the top right of the + intersection, then the blue house would be in the top right corner, the orange in the top left, the purple in the bottom left, and green in the bottom right.

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Comments

BeanSCus*
Jan 21, 2012

Well done, nice twist on the orientation!
SRB_1807Ain*
Jan 23, 2012

good one..
braingle100tus*
Jan 23, 2012

Clever!
jhosekus*
Jan 25, 2012

I like it!
Marpleen*
Jan 26, 2012

Liked it!
JasonD*
Jan 31, 2012

Excellent. I read the first two conditions, thought "Wha--?" and then slowly realized the answer.
zembobo*us*
Mar 09, 2012

For those of us who are visually challenged:

\ B / ^
\ / / \
O || G |
/ \ | North
/ P \ |
zembobo*us*
Mar 09, 2012

Wow LOL that totally didn't come out like I typed it. Anyway, thing of it as an X rather than a +.
zembobo*us*
Mar 09, 2012

*think* .. not "thing"...sorry
Candi7tus*
Jun 12, 2012

Got it completely right!!!!
Babe*
Jul 05, 2013

I never know how to figure these things out, but after reading Zembobo's theory it made a lot more sense. Thanks Zem!
jaycr*us*
Jul 05, 2013

Hmmm . . .
Happy 5th of July!
cutebugAus**
Jul 05, 2013

Good teaser, but a little logic made this easy to figure out.
crazy10manAus*
Jul 05, 2013

The first clue was misleading, but I still enjoyed the riddle!!!
lukasiwicz*
Jul 07, 2013

I din't deem the first clue misleading, but it did require you to break the mental set that the roads are oriented east-west and north-south, rather than northeast-southwest and northwest-southeast. Without that realization, which, btw, did not come to my 78-year-old brain instantaneously, the puzzle is impossible to solve.
lukasiwicz*
Jul 07, 2013

"didn't", not "din't", though I guess "din't" works, for a lazy enunciator.
eighsseAus*
Sep 01, 2013

Brilliant and ingenious!! I stared at it saying "...not possible" for a couple of minutes, then read the answer. D'oh!!!

However, I would change the first sentence to: "There is an intersection of two perpendicular roads." or "Two roads intersect at right angles."



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