Everyone loves a Promotion
This month we will take a look at how promotion of a long
suit can help us pickup extra tricks.
But first, let’s review the odds of how cards tend to divide
between the opponents in our long suit. The general rule is: an
even number of combined cards held by the opponents will usually
break unevenly, while an odd number of cards usually tend to
break evenly for the opponents.
Number of Missing Cards Likely Distribution
3 (odd number) 2-1
4 (even number) 3-1
5 (odd number) 3-2
6 (even number) 4-2
7 (odd number) 4-3
Secondly, let’s give entry management a quick review.
Assuming you cannot get to the dummy hand (North) in another
suit, how do you play these suits?
A K 8 7 2
9 4 3
We expect a 3-2 split and have a third entry to dummy that
will allow us to win 4 tricks most of the time. However, we must
be sure to unblock our entry to the dummy by playing the 9 on
trick one or two. Otherwise if you first win the Ace and King,
the 9 must win the third trick, leaving no entry to the dummy.
A K 9 8 7 6
3 2
We also anticipate a 3-2 break with our 8 card suit. To win 5
tricks, we duck the first trick playing a low dummy card from
the dummy, then winning the second and third trick to capture
the opponents’ remaining cards.
K 8 7 2
A 5 4
Here we expect a 4-2 split so most of time we will only win
two tricks. But if we have no better strategy, we can hope for a
3-3 split (36 percent chance) of opponents’ cards. If we get the
lucky suit break, we can take 3 tricks. We employ a play similar
to the prior hand, ducking the first trick, then playing the Ace
and King, hoping to be rewarded winning 3 tricks with the 13th
card in the dummy when opponents each hold 3 cards in the suit.
As declarer with five or more trump, a common strategy is to
first draw trump and develop extra tricks by cashing our small
trump winners. Depending on the lay of the cards, this tactic is
often appropriate in long side suits. Promoting a long suit is
also a primary tactic when playing a Notrump contract. In fact,
promotions are not the exclusive property of the declarer.
Particularly in Notrump contracts when an opponent leads their
fourth best card or the top of an honor sequence, the defenders
are attempting to “win the race” by promoting their suit before
declarer gets a chance to establish a suit of their own. As a
defender, your partner will also appreciate your thoughtful lead
of a card from partner’s bid suit.
Earlier we discussed the benefit of first playing the high
card from the side of the short suit to avoid blocking it.
Otherwise we may find the long suit is stranded without precious
entries. Here’s a hand fragment with Spades and Hearts. West led
the Spade Jack, apparently an attempt to promote a long suit.
S A 2
H K J 10 9 7 2
+---+
S J 10 9 8 7 6 | | S Q 5
H K 6 5 | | H A 4 3
+---+
S K 4 3
H Q 8
Declarer should win the trick with the Spade King (keeping
Spade Ace for an entry) in hand and switch to the Heart Queen –
the high card from the short side, allowing opponents to win
their Heart Ace. The opponents cannot profit by continuing
Spades; North’s Hearts have been promoted. But what happens if
South instead played a low Heart to North’s King? The opponents
could now force dummy to win the Spade Ace, but look what
happens by playing a Heart to South’s winning Queen.
S 2
H J 10 9 7 2
+----+
| |
| |
+----+
S 3
H Q
Oops, those lovely Hearts are stranded – South’s Queen blocks
the suit! If the opponents initially ducked their Heart winner,
the suit has the same problem. Looking at the big picture, it’s
clear to see that South needs two entries to promote the Heart
suit, the Spade Ace and the Heart King. Mistakenly cashing the
Heart King strands our potential winners – beware of this trap.
As a warm-up, let's try two similar hands, both playing a 3
Notrump contract by South:
S K 4
H A 10 4
D A K 10 8 7 4
C 10 5
+---+
SQ | |
| |
+---+
S A 5
H Q 9 5
D 6 2
C A 9 7 6 4 2
West leads the Spade Queen, South playing 3 Notrump. Looking
at our quick tricks, we have 2 Spades, 1 Heart, 2 Diamonds, and
1 Club - 6 tricks from 9 so we need to find 3 more. Promoting
the Diamond suit is our best bet. We win the Spade Ace, just in
case we might need an extra entry to the dummy since we're
promoting the Diamond suit. Opponents will usually hold 3-2 with
five outstanding cards, so we play up to our Diamond Ace
followed by our Diamond King happy to see opponents both follow
with four of their five cards. So we're home free after
conceding the last Diamond to make our contract. Here's a hand
that looks similar, but the lack of dummy entries requires
careful planning.
S 6 4
H Q 10 4
D A K 10 8 7 4
C 10 5
+---+
SQ | |
| |
+---+
S A K
H A 9 5
D 6 2
C A 9 7 6 4 2
West leads the Spade Queen, South playing 3 Notrump. We've
moved the Spade King to South, with our same 6 quick tricks.
Again the Diamond suit promotion is our plan, but this time we
don't have the precious Spade entry. Do you recall our earlier
review where we "ducked" (played low) to a six card suit headed
by the Ace and King to setup a long suit? Good - so let's do the
same thing here. We win the Spade King. Again, we hope opponents
are 3-2 in Diamonds, but this time playing a low
Diamond - ducking with a low card in the dummy. The opponents
win the trick and will certainly continue the Spade suit,
looking to promote their own suit - the race is on! We win the
trick with our remaining Spade King stopper, and now play our
Diamond Ace. We are delighted to see opponents both playing two
more Diamonds, leaving one. We can now play the dummy Diamond
King, and again have won four Diamond tricks to make our
contract using a long suit promotion - one step ahead of the
opponents Spade effort. If we initially played our two top
Diamonds in the dummy, the opponents would win the third trick,
leaving us no dummy entries - ducking the first round was the
only winning play - well done.
Now let’s try a 3 Notrump contract for South, looking at all
four hands:
S K Q
H 8 6 5 4
D 7 6
C K 10 9 8 3
S J 10 9 8 7 6 +----+ S 5 4
H K 9 7 | | H 10 3 2
D A K | | D 5 4 3 2
C Q J +----+ C 7 6 5 4
S A 3 2
H A Q J
D Q J 10 9 8
C A 2
West opens with 1 Spade and South ends up playing a 3 Notrump
contract. West leads the Spade Jack, optimistic about promoting
the long Spade suit with two Diamond entries. North wins the
Spade Queen. Should South take the Heart finesse or promote
Diamonds? We can see the finesse fails, West persisting with a
second Spade to North’s Spade King. Unfortunately for South,
it’s one trick too late to promote Diamonds – West wins one
Heart, two Diamonds and three Spades, so South goes down two. A
better tactic for South on the second trick is to win the
promotion race by immediately tackling Diamonds. The slugfest
goes like this, win a Spade, lose a Diamond, win a Spade, lose
the last Diamond, and win the last Spade. Congratulations,
you’ve won the race losing two Diamonds and one Heart making 3
Notrump with an overtrick.
Be aware the promotion play is only one of many tactics.
Always consider your contract objective and alternatives as well
as
Environmental Factors. Let’s take a seemingly unimportant
Spade 2 away from South to illustrate how it can influence the
declarer’s tactics.
S K Q
H 8 6 5 4
D 7 6
C K 10 9 8 3
S J 10 9 8 7 6 +----+ S 5 4 2
H K 9 7 | | H 3 2
D A K | | D 5 4 3 2
C Q J +----+ C 7 6 5 4
S A 3
H A Q J 10
D Q J 10 9 8
C A 2
Giving up the Spade 2 and receiving the Heart 10 seems like a
great exchange. But now when West leads the Spade Jack, we can
see there’s no way to win the race! Win a Spade, lose a Diamond,
win the last Spade lose a Diamond, but now West is home free
winning two Diamonds and four Spades. What went wrong? South
only has two stoppers and West is one trick ahead of the
promotion race. How about the repeated Heart finesse? Sorry,
even if it worked, we only have eight tricks. Also, considering
we have 28 points and West opened, it’s hard to imagine East
holding a King; 40 points in the deck minus our 28, and West
probably opened with 12 points so East must be bust. Instead,
how about a Club finesse combined with a suit promotion? Based
on our math calculation (40-28=12), West likely has at least one
Club honor. So South begins with the Club Ace, the high card
from the short side and feels some relief when an honor appears
from West. Continuing with a second Club, declarer is overjoyed
to see the last honor appear, making five Clubs (pitching two
Diamonds is fine), three Hearts and two Spades.
Did you notice how giving up the tiny Spade led us to
changing our promotion strategy from Diamonds to Clubs? Bridge
is interesting that way, illustrating how such a little card can
make a big difference. Incidentally, if West didn’t open and we
thought East might hold the Heart King, a repeated Heart finesse
might be in order. For our final rendition, let’s give poor East
the Heart King, a second small Heart and a Club honor. So this
time West will not open the bidding. Note: while the play is
tricky on this hand, hopefully you will have an appreciation of
the repeated finesse coupled with creating an entry by
unblocking.
S K Q
H 8 6 5 4
D 7 6
C K 10 9 8 3
S J 10 9 8 7 6 +----+ S 5 4 2
H 9 7 | | H K 3 2
D A K | | D 5 4 3 2
C Q 7 +----+ C J 6 5 4
S A 3
H A Q J 10
D Q J 10 9 8
C A 2
As usual, West begins with the Spade Jack starting the
promotion race. As we saw above, we are one trick too late on
the Diamond suit. While we will probably win four Club and two
Spade tricks, the opponents will win three or more Spade tricks
and two Diamonds to set the 3 Notrump contract. Perhaps South
can try a repeated finesse in Hearts this time.
So after the Spade Jack lead, let’s play the dummy King - not
the Ace. We want to begin our Heart finesse tactic right away.
In a moment, you’ll see a sneaky way to use the Spade Queen as a
second entry. After winning the first trick, dummy plays a Heart
to South’s 10 and the trick holds (East chose not to play the
King). Next we win the Club Ace – this time West plays an
unhelpful low Club 7. Still, we play a second Club to dummy’s
King. We continue the Club promotion, knocking out East’s
remaining Jack – their last possible winning card in the suit.
What shall we pitch from South?
S K
H 8 6 5
D 7 6
C 10 9 8
S J 10 9 8 7 6 +----+ S 5 4
H 9 | | H K 3
D A K | | D 5 4 3 2
C -- +----+ C J
S A
H A Q J
D Q J 10 9 8
C --
Before throwing a Diamond from the South hand, recall that we
desperately need dummy entries to win the promoted Club suit and
repeat the Heart finesse. Unfortunately, there are no more
entries when South holds the Spade Ace, so it appears we cannot
get the King. Yet when we stop to think about it for a moment,
we know the dummy’s King is just as good as our Ace, so let’s
pitch the Ace and we have found that precious dummy entry! While
this seems like a strange unblocking measure, we should live by
the credo, “desperate times call for desperate measures!” True,
South no longer can play a Spade to get to the dummy, yet the
opponents are stuck promoting your suits and eventually must
play to your precious Spade King entry.
Don’t worry about learning subtle unblocking play as we’ve
shown here – many strong players could easily miss this line of
play or try other sensible tactics. Yet hopefully you have a
better appreciation of promotion, entries, and finesses. Each
tactic has its place, often with just a card or two changing
places. So be on the lookout and let your creative juices flow.
Also see Distribution Points - the Mathematics of Promotion