ACKLEY — After a season in which several close games slipped away, AGWSR made sure its final opportunity ended differently.Landen Dennis threw for 370 yards and five touchdowns, Lane Olson caught three scoring passes and the Cougars pulled away in the fourth quarter to defeat Colfax-Mingo 37-20 on Thursday, Oct. 22.AGWSR piled up 534 yards of offense, turned an early deficit into a 16-point halftime lead and answered after the Tigerhawks cut the…