Boise, Idaho ? With the Colorado Buffaloes, the sum is more than its parts. They proved it by taking out Stanford’s triple threat standout, Nicole Powell.

Tera Bjorkland scored 10 of her 17 points in the second half and Randi Wirt swished two free throws with eight seconds remaining as No. 3 seeded Colorado beat second-seeded Stanford 62-59 Saturday night in the West Regional semifinals.

The victory by Colorado (24-9) ensures the Big 12 of a team in the Final Four for the first time. The Buffaloes advanced to play the winner of the late contest between Oklahoma and Texas Tech, two other members of the league.

Eisha Bohman scored 10 for the Buffaloes and helped slow Powell, who posted triple doubles in Stanford’s first two NCAA tournament games but this time had 13 points, eight rebounds and six assists.

Stanford (32-3) had a final chance to force overtime but Lindsey Yamasaki, who led the Cardinal with 14 points, was off the mark with a 3-point attempt as the horn sounded.

Sabrina Scott helped Colorado’s cause with 10 rebounds, but the Buffaloes got contributions throughout the lineup.

Bethany Doniphan scored 13 for Stanford.

It was a close second half, with neither team able to assemble a knockout run. Bohman put the Buffaloes ahead 60-56 when she cut to the basket and scored with 1:51 on the clock.

Powell answered for Stanford, hitting a 3-pointer with 1:32 remaining, only her second field goal of the second half.