by bbirdwell Tue Jul 05, 2011 5:52 pm
Just like it looks!
Then, using the constraints, make inferences. The constraint that says "2 of the North lights must be on" is a great one. At that point, I'm thinking, "well, there's only three ways to do that."
Then I noticed the constraint that says "1 --> ~2 & ~7" and I see that 1 and 2 can never be on together.
This means that there are only two ways to do it: either 1 and 3 are on, or 2 and 3 are on. From there, I make inferences within these two "frames" and the game is mine.
Attached is a sketch of the two frames I used and an overview of how I made the inferences.
- Attachments
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- PT8, G2-Parking Lot Lights - ManhattanLSAT.pdf
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