Logic puzzles tend to be popular

[chuckro]

Check me for multiple solutions, unnecessary clues, and the like. Edits made based on comments. Please note the new clues 2 and 8.

Six friends (Morgan, Lee, River, Pat, Sam, and Chris) are lining up for a photo. Three of them are in the front row and three are in the back. Who stands where?

1. There are three men and three women. Each row contains at least one person of each gender.
2. Chris, being the tallest, got stuck in the back, on the left side.
3. Two of the women have red hair, one of those two is in the front row.
4. No two people with the same hair color are next to each other in their row.
5. Lee and River, being an overly affectionate heterosexual couple, stand together.
6. River has dark hair. Sam and Pat are blond.
7. The blond woman is jealous of Chris’s dark hair.
8. Pat is standing in front of River.

Comments

[ivy03.livejournal.com]

Well, I just got:
CLR
SMP

Chris male dark
Lee female red
River male dark
Morgan female red
Sam blond
Pat blond

You can't determine S + P's gender, which is annoying. But I think that's the same as everyone else has said. And I solved after your edits and got a unique solution.

[edgehopper.livejournal.com]

Yup, unique solution with the edits. Nice puzzle.