EASTLAKE BRIDGE CLUB
NO TRUMP LEADS - RULE OF ELEVEN
In the previous weeks we've learned what suit to lead and which card to lead once
we've decided on a suit.  We've looked at how to tell if partner likes our suit
or whether we are walking into a bath coup (lesson 5).
Today we're going to learn about the rule of eleven and put everything we know
about partner's lead to work.
1) Partner leads the ♠ 2 when the auction has proceeded 1N - pass - 3NT.
List  6 things we know about p's and declarer's hand. Answer
2) DUMMY
♠ K53
WEST EAST
a) ♠ 6 ♠ J42
♠ ?
DECLARER
West leads the 6 against 3NT. North puts down the K 5 3 in the
dummy, and East holds the J 4 2. What does East know about the
length of West’s diamond suit?  Declarer's diamond suit? Answer
3) In the above hand, West leads the 7, instead of the 6. How many cards does
West hold in the diamond suit?
Answer
The lead of the fourth highest card can help partner determine how many
cards are held in the suit, but there is more to it than that.
4) South opens 1NT, North raises to 3NT and West leads the 7. If the
3 is played from dummy, which card should East play?
♠ K53
WEST EAST
♠ 7 ♠ AJ92
♠ ?
DECLARER Answer
If you have difficulty visualizing West’s holding in this type of situation,
you can make use of the rule of eleven:
RULE OF ELEVEN:
Take the card partner led and subtract it from 11.  The result gives the number
of cards remaining in the other 3 hands that are higher than partners lead.
What is the result of subtracting partner’s card (in this case the 7) from 11? 
Eleven minus seven leaves four cards higher than the seven in the other
three hands.
How many cards higher than the seven can East see? (Four.) East can
see the K in the dummy and the A, the J and the 9 in the East
hand. That’s ALL four cards higher than West’s 7.
Since East can see all four cards higher than the 7, there are no cards in
declarer’s hand higher than the 7.
5) What happens if east plays the J ( or 9) when dummy plays low?
♠ K53
WEST EAST
♠ QT87 ♠ AJ92
♠ 64
DECLARER
Answer
6) With the following hand, West has decided to lead spades against an auction
of 1 NT - Pass - 3 NT.   The 4 is led.  
♠ K53
WEST EAST
♠ T874 ♠ AJ92
♠ Q6
DECLARER
What information would West's lead give to East?   Answer
What card should East play if dummy plays low? Answer