View Single Post
Old 02-14-2015, 05:24 PM   #6
Talon87
Nebby. Back into the bag.
 
Talon87's Avatar
 
Join Date: Mar 2007
Location: Lafayette, Indiana
Posts: 20,460
Send a message via AIM to Talon87
Got it in 20 seconds. My approach, in my own words:

Spoiler: show
It works with both rows and columns:
  • the property that 1 and 2 share will be inverted in 3
  • the property that 1 and 2 do not share will see 3 copying 2's
So like, if it's bottom left, bottom right, then you know the third square must be top right since bottom was shared (so invert it) but right-left ness wasn't (so go with the second square's, which was right in this example).

Looking over your guys' discussion it looks like you had similar approaches.

Maybe we need another example!
Talon87 is offline   Reply With Quote