I caught a lot of The Ringer action on social media this past weekend (shout-out ZB, shout-out golf, shout-out Dormie Club), and during one of the rounds they used 2 holes on every green.
It made me think about how two holes could be use to make a player think more, and as a result beat themselves by overthinking their options.
For instance, having a front left hole tucked behind a greenside bunker. The player has gone left side of the fairway and has no angle to this hole. But there is a back right hole that seems safe. Except that part of the green is designed where a less-than-good shot is deflected off the green and an almost impossible up-and-down (bonus if there is no bunker back there that makes it seem even more like the safer option). The player that goes for the back right hole is now demoralized, because they think they have been bailed out of the bad tee shot by an alternate hole. They could've played to the middle of the green and putted back to the front-left hole for an easy 2-putt par, but now they got greedy with another option and hurt themselves.
It could also help some players receive more "good luck". On the 12th hole at Dormie Club, a short one-shotter, some players were going for the right side hole and coming up short and left, which was then kicked down towards the other hole. This would be especially demoralizing in match play, where a shot like this would normally leave your opponent with a lengthy 35-footer for a tough two-putt par, and now he's sitting 4 feet from the hole for birdie!