Subscribers to Bridge Magazine will know that complex play problems
involving percentages are referred to David Burn, who can always
be relied upon to provide a definitive answer. Using the power of
the Internet we asked him to comment on this deal from Round 4 of
the Bermuda Bowl.
Board 23. Dealer South. All
Vul. |
|
ª A J 7
© J 10 7
¨ Q 10 8 7 3
§ 9 7 |
ª Q
© A 8
¨ A 9 6 4 2
§ A K J 8 2 |
|
ª K 6 4
© K Q 9 4 3
¨ K J
§ 5 4 3 |
|
ª 10 9 8 5 3 2
© 6 5 2
¨ 5
§ Q 10 6 |
The contract is 6NT.
I asked David to compute the odds, suggesting the best line is
to test the hearts and then finesse in clubs. It did not take him
long to reply:
‘I don't see this. If you're going to take the club finesse
at the end anyway, you might as well take it at the beginning. Then,
five rounds of clubs may squeeze an opponent with four hearts and
¨Q10 (or any 4+ diamonds). Besides, if North has the stiff §Q, you
will need the heart entry to pick the suit up (you should not play
for him to have falsecarded from §Q10 or §Q9, because he has no
need to do this - you are going to finesse anyway). The best line
appears to me to be: ªK, §A, ¨K, club finesse. If this works and
both follow, run clubs and hope for the best. If it works but North
shows out, attempt to run hearts and squeeze South in the minors.
You will make when South has §Q and either: clubs run and hearts
run; or clubs run and the red-suit squeeze works; or hearts run
and the minor-suit squeeze works. This all adds up to around 44%
- 6NT was not a great contract, of course.
Dealmaster Pro and Deep Finesse indicate that on a double-dummy
basis, the contract will make around 56% of the time - but this
involves dropping North's doubleton §Q whenever he has it, so the
true odds are roughly as I
have suggested. Of course, if South is going to be squeezed (in
the minors or the reds), North has misdefended by winning the first
trick, but this is an imponderable.
Merci, David!
"Stand not upon the
order of your going, but go at once"
Macbeth. Act iii. Sc.
4
When your contract appears to be in jeopardy you can sometimes
survive by subjecting your opponents to an immediate test, exploiting,
as Tony Forrester would say, ‘the power of the closed hand.’
Consider this deal from Round 3 of the Bermuda Bowl match between
USAII and Bermuda.
Board 4. Dealer West. All
Vul. |
|
ª A K 5 3
© A K 7
¨ Q 8 5
§ J 8 5 |
ª 8 7 2
© Q 10 4 3
¨ 9 7 3
§ A 9 7 |
|
ª 10 9 4
© 9 8 6 2
¨ 10 6 4
§ Q 3 2 |
|
ª Q J 6
© J 5
¨ A K J 2
§ K 10 6 4 |
West |
North |
East |
South |
Wildavsky |
Harvey |
Doub |
Douglas |
Pass |
1§ |
Pass |
2NT |
Pass |
4NT |
Pass |
6NT |
All Pass |
|
|
|
Declarer took the opening lead of the eight of spades with the
jack and played three more rounds of the suit before advancing the
jack of clubs. East covered with the queen and declarer had nowhere
to go, -100.
West |
North |
East |
South |
Saunders |
Wolff |
Hall |
Morse |
Pass |
1NT |
Pass |
4NT |
Pass |
6NT |
All Pass |
|
Here North was declarer and he won the first trick with the ace
of hearts and immediately advanced the jack of clubs like a man
who was trying to sniff out the location of the queen. Can you blame
East for failing to cover? Now declarer had an easy route to twelve
tricks for +1440 and a big swing.
And the winner is…
During these Championships the IBPA will be announcing their annual
awards. If the criteria for selection were to rest on the frequency
that a hand has been reported, then this effort would undoubtedly
be a leading contender. It has already appeared in such distinguished
publications as The Times, Daily Telegraph, The Lady, Country Life,
Bridge Magazine, Le Figaro and of course the IBPA Bulletin.
Dealer East. N/S Vul. |
|
ª 9 7 2
© 8 4 2
¨ A K 10 8 6 4
§ A |
ª 10 4
© J 10 7 3
¨ 9 7 5 2
§ 8 6 4 |
|
ª K J 5 3
© K
¨ J 3
§ J 10 9 7 5 3 |
|
ª A Q 8 6
© A Q 9 6 5
¨ Q
§ K Q 2 |
West |
North |
East |
South |
|
Dix |
|
Tacchi |
|
|
Pass |
1© |
Pass |
2¨ |
Pass |
2ª |
Pass |
3© |
Pass |
4§ |
Pass |
4¨ |
Pass |
4© |
Pass |
5© |
Pass |
6© |
All Pass |
|
|
|
Declarer won the club lead in dummy and played a trump. When East
produced the king declarer decided it was a true card and set about
trying to avoid the loss of two trump tricks. Winning with the ace,
Tacchi cashed the top clubs, discarding two spades from dummy. After
unblocking the queen of diamonds declarer cashed the ace of spades,
ruffed a spade and played the ace and king of diamonds. Then he
ruffed a diamond in hand and played a trump towards dummy’s
eight. West could win, but then had to lead into declarer’s
trump tenace.
A brilliant play by Ron Tacchi – but there was no one there
to take his picture!
|