The greens at Aronimink Golf Club have always been the course's strongest defense, but during this week's PGA Championship, they've become something far more treacherous. "Kind of absurd" is how World No. 1 Scottie Scheffler described the pin placements after his second round on Friday—and he's not alone in that sentiment.

Major championships are supposed to push the world's best golfers to their limits. The mental grind, the pressure, the precision required—it's all part of what makes winning one of golf's four biggest prizes so special. But there's a fine line between challenging and unfair, and the question hanging over this tournament is whether the PGA of America has crossed it.

Coming into the week, many expected Aronimink—a classic Donald Ross design just outside Philadelphia—to be a scoring paradise. Rory McIlroy even lamented that the course's "nonexistent" driver strategy would make it too easy for the game's elite. But tournament organizers had other plans. Instead of a birdie fest, Kerry Haigh and the PGA of America served up a relentless menu of diabolical pin locations, many tucked on spines or perched just a few paces from severe slopes.

Friday morning added another layer of difficulty: winds gusting up to 30 miles per hour and greens that had firmed up considerably. The combination proved too much for several stars, who found themselves packing their bags after missing the cut. Even those who survived to play the weekend looked shellshocked, having spent hours trying to solve a puzzle that felt nearly impossible.

"I love hard tests of golf, but it's also the hardest game in the world, and we're trying to make it harder," Scheffler said after posting 2-under through 36 holes. "You can do that on a golf course like this where, I mean, I truly believe they could have the winning score be whatever they want it to be. It could be over par if they want it to be, just based purely upon pin locations. Is that the best test? Who knows. It's a different test."

For fans watching at home, it's been a fascinating—and occasionally painful—spectacle. For the players in the middle of it, it's been a battle for survival. Whether this approach will produce a worthy champion or simply a war of attrition remains to be seen. But one thing is certain: Aronimink's "dicey" pin locations have turned what was supposed to be a showcase of power into a grueling test of nerve.