The 49ers looked alive in the second quarter. Fred Warner had a great play on 3rd and 3 after beating several blocks and making a short pass.

Kyle Shanahan shot on the first play and Deebo Samuel shot down the left sideline. Seattle’s safety misplayed the ball, leaving it up to a linebacker to catch Samuel. As you might expect, that linebacker didn’t catch Samuel. It was a 76-yard touchdown pass that gave the Niners a commanding 10-0 lead.

The Niners had a chance to blow the game open after Darrell Luter Jr. had forced a fumble on the kickoff. It was potentially a huge turning point.

The offense had a short field and technically it wasn’t a red zone opportunity, but they had the ball on the 29-yard line. After Mason gained six yards on the first two plays, Purdy had to scramble on third and fourth down. It was a missed opportunity to score a touchdown. Instead, a field goal made it 13-0.

Nick Sorensen had a great first half. He switched coverages, forcing Smith to hold the ball, which led to Nick Bosa being assessed a holding penalty. After that three-and-out, the offense would again take place on a longer drive. Mason ran for 14, and Brandon Aiyuk caught a 16-yarder. Purdy rushed for another 10-yard gain to move the chains.

A 50-foot facemask put the 49ers in the red zone, which is apparently the last place they want to be these days. Another failed rush on the first down meant it was 2nd and 11. An incomplete pass and a failed fullback screen led to another field goal to make it 16-0.

During the two-minute drill, the 49ers gave up a pair of chunk plays, and a defensive pass interference gave Seattle first and goal from San Francisco’s two-yard line. Deommodore Lenoir and Renardo Green made two spectacular moves on the ball to force incompletions. The Seahawks had a chance to regain the momentum, but the defense stood tall.

The Seahawks went 3-for-8 on third down, and Smith averaged just 6.1 yards per pass and had just one red zone attempt in the first half. It was perhaps their best half of the season if we don’t count the Patriots – for obvious reasons.