After a redouble, passes are forcing

Edward O. Wilson, the world's greatest authority on ants, said, "Without a trace of irony I can say I have been blessed with brilliant enemies ... I owe them a great debt, because they redoubled my energies and drove me in new directions."

In bridge, a redouble might be for rescue (SOS), or trying to increase the score (after a not-so-brilliant enemy makes an injudicious penalty double), or announcing 10-plus points (our primary theme this week).

In today's deal, North redoubled to show 10-plus points with fewer than four spades. After West ran to two clubs, North rebid three spades to show game-forcing values with exactly three-card spade support. Now South used Blackwood before bidding seven spades.