Bear River’s boys basketball squad climbed out of the Pioneer Valley League cellar with an explosive offensive performance led by Justin Beskeen and a failed desperation 3-pointer by Center at the buzzer. Bear River pulled out a hard-fought 50-48 victory over the Cougars for the Bruins’ first league win Friday night in Jack R. McCrory Gymnasium. “We definitely shot it better,” said Bruins head coach Duwaine Ganskie. “We hit some 3-pointers, moved the ball better and held (Center) like we have other teams. Our offense was the difference.” The Bruins opened the game by falling behind 4-0 as Center’s big …