49ers report card: The ABCs of winning in Seattle weren’t easy to spell

SEATTLE — Here is how the 49ers (3-3) graded in Sunday’s 36-24 win Thursday night over the host Seattle Seahawks (3-3):

PASS OFFENSE: A-

Brock Purdy delivered three touchdown passes, committed no turnovers, eluded defenders without getting sacked, and posted a 129.3 passer rating. But enough about how he outplayed his counterpart Geno Smith. Purdy’s trust in George Kittle produced two of those touchdown passes, the first on a 10-yard grab with fancy footwork at the front pylon for a 23-3 lead...