Naveen Jain, the founder of InfoSpace, said, “Just think of the opportunities we can unlock by making education as addictive as a video game. This type of experiential, addictive learning improves decision-making skills and increases the processing speed and spatial skills of the brain.”

Yes, but how can we make education as addictive as a video game? A child – or grown-up – must want to learn.

The word “unlock” is relevant to this deal. South is in five diamonds. After West leads the heart queen, how should the play proceed?

The first three bids in the auction are easy, but North has a close rebid. Here, a jump to three no-trump would not work if East leads a heart; and bidding it with ace-third could wrongside the contract if South has queen-doubleton, for example. If willing to force to game (certainly reasonable with 12 points, two aces and one king), two hearts, fourth-suit game-forcing, is a better rebid. Then, when South shows 5-5 in the minors, North can support diamonds. South bids game with his minimum.

South apparently has only two losers: one spade and one diamond. But given the bad minor-suit splits, he must be careful not to get locked out of his clubs.

After winning with the heart ace, declarer should run the diamond 10, which West ought to duck. Then, when the diamond nine wins the next trick, South must be careful to cash dummy’s club honors before leading a third trump.

West wins, but cannot stop declarer from reaching his hand with a heart ruff, drawing trumps, and running clubs.