rainbow@ihuxe.UUCP (08/02/83)
Here is the problem presented again.
North
S:AJ65
H:KT2
D:
C:AKQJ65
West East
S: S:KQT987
H:J987654 H:
D:987654 D:KQ2
C: C:T987
South
S:432
H:AQ3
D:AJT3
C:432
South is in 6NT. State the leads by West which allow South to make the
contract. There are at least seven such leads yet less than thirteen.
Also show South's various lines of play depending on the lead.
The solution presented stated (1) A diamond lead will allow South to set
up his twelfth trick in that suit. That is correct. (2) A heart lead must
be won by South and a diamond trick given to East. Now hope East returns
a diamond or club which results in him being finessed or squeezed respectively.
A high spade return will set the contract. This analysis is also technically
correct but can be improved upon. There are lines of play by South which
will guarantee the contract depending on the lead.
The intent of the problem is since South can see all the hands, so can
East and West. And just as South will make plays based on this information,
so will East and West(except opening lead). You must assume they will always
make the best possible play. Hence you cannot allow them an opportunity to
set you because they will. So any analysis on heart leads must not depend
on the opponents making errors.
P.S: Your English is very good.