West scored two spade tricks and led the club queen.
The defense took a spade trick, but that was the end.
He tried to develop a spade trick by leading the eight, a play that would succeed against almost anyone.
He won with the club ace on the board and took his five spade tricks.
But West won the first spade trick with the queen.
The defense collected only one spade trick and four clubs.
The defense will take a spade trick, a heart, and a diamond, but that is all.
He is very happy to lose a spade trick to West, who cannot hurt him with a club lead.
South took two spade tricks and led the diamond queen.
South could not avoid the loss of a spade trick and a diamond.