Hadn’t played Ken in a long time. particularly as White. He is a solid player, but perhaps you can guess by the title what went awry.
I spent 20 minutes playing 4.dxc, was going to trade queens. I didn’t realize that after 4.Bd3 Nc6, 5.Nf3 Bg4, 6.d5 Ne5, White has 7.NxNe5! BxQd1?, 8.Bb5+! In the line played I was simply going to trade queens.
Finished the game with 23 minutes to his 8.