Right, I gave an example that was wrong in order to avoid spoilers, but the rules are still true.
R1C1 and R2C2 would be the same, just as R1C2 and R2C1 would be the same. <--- this is assuming the connected columns are 1 and 2, which I'm not saying is true because again, I'm not posting spoilers.
There's only one solution, so I'm surprised you're saying which corner pink and red belong in is moot. It's definitely not moot!