Wandering into the bidding over a strong one-no-trump opener and not buying the contract can prove to be an expensive exuberance. Today, West’s reasonable decision to show the majors painted a picture for declarer.

Against three no-trump, West led the spade four, and South saw he could count on eight tricks — four in spades, one in hearts, two in diamonds and one in clubs.

Declarer noticed that the likeliest source of the ninth trick lay in hearts, but he also knew that, in view of the bidding, West was almost certain to have the king. Thus, simply leading a low heart to the queen was unlikely to pay dividends.

So at trick two, when dummy’s spade queen held, he played a low heart, hoping that East might hold at least one of the four top cards in the suit. When East followed with the six, South inserted the seven and West won with the nine. (Had East played the 10, South would have covered with the queen.)

Now West guessed well to get off lead with a diamond. Taking East’s nine with the ace, South continued with the heart queen. West played the king, which was allowed to hold, the 10 dropping from East.

West exited passively in spades, and South won and drove out the spade king. When West took his king and returned a spade, South took his spade winners and successfully finessed the heart eight. He cashed the heart ace and led a club to the queen and ace to bring home nine tricks.

In today’s deal, three different declarers all reached six no-trump rather than six diamonds. That contract looks best at both pairs and teams, since there are some additional chances in no-trump when diamonds do not behave.

The first declarer won the heart lead in dummy and played a diamond to the nine and queen. The defenders persisted in hearts, so declarer cashed a top diamond to find the bad news, then took the club ace and the heart winners. He pitched a club and diamond from dummy and ran the spades, squeezing West in the minor suits.

The second declarer won the heart jack and cashed the diamond ace and king. The bad break made him pause, but he eventually decided to cash the hearts, pitching a diamond and club from the table, then run the spades. West came down to two diamonds and the bare club king, but declarer had no option but to play a club to the ace. When the king came tumbling down, he had his 12th trick.

The third declarer played a diamond to the ace and ducked a diamond; this was technically best, since if the suit had split 4-1, he would have been home regardless of the rank of West’s singleton, as well as when East had a bare honor. As it was, when West won the diamond jack and returned a heart, declarer had transposed into the first declarer’s line. He took his club ace and heart winners, and ran the spades to force West to concede in the two-card ending.

South’s distribution in the majors makes his hand untenable for a strong no-trump — at least to most of us. After North raises spades, South chooses to invite game with a call of two no-trump, suggesting his hand pattern pretty well, though he would prefer a tad more security in the heart suit. As it happens, North can happily accept the invitation to the spade game.

When West leads the heart king, South can see no losers in the black suits. He must surely lose two hearts, and he must do something with his third and fourth heart, as well as the diamond queen.

West leads out the heart king and queen as East follows high-low, suggesting his doubleton and asking West to continue with the suit. East is clearly hoping to create a trump trick for his side on a third heart.

At trick three, West leads the heart ace. If declarer ruffs low in dummy, he will be sending a boy to do a man’s job. To avoid this ugly fate, declarer ruffs the third heart with dummy’s spade king, then plays a trump to the ace.

When the nine appears, declarer might consider a later trump finesse, but he can almost ensure his contract without needing to make that play. He cashes a second top trump, then the diamond ace, and then takes three top clubs to pitch his diamond queen.

Now he ruffs a diamond back to hand and exits in hearts, reducing to a two-card ending where he has the J-8 of trumps poised over East’s 10-7 of spades.

It never does any harm to go over the basics from time to time. Today’s deal features points of interest in both the bidding and play.

First, let’s look at what actually happened at the table. South opened a strong no-trump and played there on a spade lead to the jack and king. (The king is the right card to encourage both defenders to continue the suit since West might think his partner had the queen.) Declarer played the diamond king; East won and naturally continued spades rather than finding the killing shift to clubs. Declarer won with the ace and advanced the diamond nine, letting it run when West pitched a heart. East won with his jack and shifted to clubs, holding declarer to eight tricks.

Now let’s look at the auction: As North, I would definitely transfer to diamonds (prepared to play my long suit) and keep the opponents out of the major suits. This may not always work, but it is the percentage action.

Against the no-trump contract, East goofed when he won the diamond ace on the first round of the suit. If he ducks, he retains control of the suit, holding declarer to just one trick in diamonds, rather than four. If East had ace-third, he would never have taken the first round of diamonds; his potential second winner in the suit should not have affected that decision.

In general, ducking an ace over the king-queen is often a good idea when you know declarer does not have a singleton — and maybe even when he does.

Brian Callaghan of London plays regularly with his partner, Christine Duckworth, and he was declarer on this deal from last year’s Gold Coast Congress in Australia.

Callaghan took his best chance in a delicate game here. Yes, he could have doubled four clubs for take-out, but that might have suggested more defense than this hand — and then he would not have been able to test his skill in four hearts, would he?

The defenders led two top diamonds, on which East pitched a club. Perhaps West should have led a lower diamond to force his partner to ruff and create a trump promotion via the uppercut, but he did not. When East discarded, Callaghan ruffed the second diamond, drew trumps in three rounds and ducked a spade to West’s queen.

West was worried that leading a third top diamond would squeeze his partner, so he played a club. Callaghan won in dummy, then led a spade. East naturally split his honors, but Callaghan ducked this trick. He could win the next club in dummy and take the spade finesse to make the rest of the tricks and bring home his game.

At trick six, if West had indeed played a third top diamond, declarer would have had to ruff. Now he would go to dummy with a club and lead a spade from dummy. To defeat the game, East would have to duck – not so easy to do! That would give declarer one extra spade trick, but not two.

It is no longer the case that a free raise by North to two spades in competition should guarantee extra values. One occasionally passes minimum raises with three bad trumps and defense against the opponents’ suit; but here, the fourth trump is more than enough for the raise.

Now East has the values to drive to four hearts, after which, at this vulnerability and with little defense against hearts, South should consider the save in four spades, hoping to escape for two or three down. West might pass, but his prospects of a good penalty from four spades are so much better than his prospects of making five hearts that some might double. When West passes, East has an easy double.

Holding trump control, it seems clear to West that he should lead his singleton diamond, and East wins the trick cheaply. Of course, East cannot be sure whether the lead was a singleton or not, and he should next play the heart king. When West does not overtake to lead a diamond, but discourages by playing a low heart, he confirms that the diamond lead was a singleton.

But now comes the crux of the deal: East’s next play should not be to play the ace and another diamond, but instead he should lead a low diamond so that West gets his ruff while East’s tenace in diamonds is preserved over dummy. After taking the ruff, West cashes the spade ace and exits in hearts, and the defenders still have two tricks to come for a penalty of 500.

West leads the heart jack against three no-trump, dummy’s queen winning the trick, while East’s card is consistent with showing an even number of hearts. How should you plan to make your contract?

If you take the club finesse, West will win his king and drive out the heart ace, and you will be held to eight tricks. A far better approach is to assume that West has the diamond ace, so cross to your hand with a spade at trick two and lead a diamond toward the king.

If West takes his ace and continues hearts, you will win that ace and lead a low diamond, intending to cover West’s card. West has to follow with his six, and you insert dummy’s 10. After East wins the jack and shifts to a club, you rise with the ace and cross to the spade king to run the diamonds. You will take 10 tricks: three spades, two hearts, four diamonds and a club.

If West wants to prevent the overtrick, he must follow with a low diamond at trick three. You will put up dummy’s king and remain on lead to run the club 10 to West’s king. You will emerge with nine tricks: three spades, two hearts, a diamond and three clubs.

Finally, if West takes the diamond ace at trick three, clears hearts, then follows with an honor on the second round of diamonds, you will have to hope East started with three diamonds. You need to win the second diamond with the king, then cross your fingers and play a third diamond.

After a straightforward auction to three no-trump, South should count his winners when West leads the spade four. With at least six tricks coming from hearts and clubs and at least one trick in each of spades and diamonds, he seems to be in good shape.

At trick one, South captures East’s jack with his queen. Since West appears to have led from the A-10, it would be very dangerous to allow East to come on lead. East would then be in position to lead a spade through South’s king, letting West run spades and possibly defeat the game.

There is no such danger in letting West on lead. If West leads spades again, South can establish his ninth trick from the spade king. To put it another way, East is the dangerous opponent and West if the safe hand. If possible, South must develop his tricks while keeping East out of the lead.

Declarer begins by leading a heart to dummy’s king. If hearts break, declarer will have nine tricks without any need for further work — but that can wait. Declarer now goes after diamonds by running the diamond eight through East. If East has both top honors, he cannot be kept off lead; but in virtually every other scenario, it may be possible to develop diamonds while keeping East off play.

The diamond eight loses to the nine, and South wins the club return, then leads a heart to dummy and leads another diamond, covering East’s card. Declarer can then run the diamonds and cash out for nine tricks.

When North opens the bidding, South’s assets suggest inviting rather than driving to game. However, East’s jump to three hearts prevents South from bidding his hand scientifically. He might as well drive to four spades — the only question being whether to bid game at once, or to bid and rebid the suit.

In four spades, South can expect to lose two hearts and a spade, eventually discarding his low diamond on one of dummy’s clubs. East upsets the applecart by overtaking the heart king and leading back what appears to be an obvious singleton diamond.

South should now see the danger; if he makes the normal play of leading a trump, East will take the ace and lead a low heart to West! West will then give East a diamond ruff to set the game.

The way to circumvent East’s plan is to win the diamond king and go after clubs at once. If East can follow to two rounds (highly probable since he appears to have only one diamond), South is safe.

East does follow to two rounds of clubs. If he cannot ruff the third round South will discard the losing heart and be home free. When East ruffs in, South still discards his remaining heart.

This was a card South expected to lose anyway, so the play has cost nothing. The big gain is that now West cannot gain the lead; he can never give his partner a diamond ruff.

In effect, South has given the enemy a trump trick instead of a heart trick. By doing so, he has cut their lines of communication.