Wednesday 15 October 2014

Premier League 6S

E-W Game
Dealer South
  • AJ754
  • J6
  • 843
  • A62
N
W
E
S
  • KQ9
  • A1098
  • AK1095
  • K
West
North
East
South
-
-
-
Pass
Pass
Pass
1
Pass
1
Pass
2
Pass
3
Pass
3
Pass
4
Pass
4NTRKCB
Pass
52 'aces'
Pass
5NTgrand try
Pass
6
All pass


Two expert declarers in the Premier League reached 6 on this hand, but both went off on the lead of 4. South's K won the first trick, and they switched to Q.

First, some thoughts on the opening lead. The auction has been informative: declarer has five spades, three diamonds, the ace of clubs, the ace or king of spades, probably with the jack, and not much more. Dummy has five diamonds to the ace and king, four hearts to the ace, three spades to the ace or king and the queen, and a club. If that's all they've got, a heart lead will beat the contract by setting up a heart trick before declarer concedes a diamond, so long as declarer has two or three hearts. A trump or club lead may beat it too (the latter depends on who's got the spade ten), but only if declarer's got three clubs.

Making dummy a bit stronger: the contract is almost always making if dummy's got K (unless diamonds are 4-1). But if instead dummy's got K or declarer has Q, a heart still succeeds. And the heart usually wins if dummy's got Q with the king over it.

So, unless diamonds are 4-1, the heart lead is indicated from most holdings, and not much can be deduced from it.

Now how do you play?

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Monday 13 October 2014

Two hard defences in one

Love all
Dealer South
  • K6
  • none
  • AJ53
  • A865432
  • AQ10983
  • AJ107
  • 10
  • K7
N
W
E
S
  • J5
  • K54
  • Q9762
  • J109
  • 742
  • Q98632
  • K84
  • Q
West
North
East
South
Rob
Jonathan
John
Paul
-
-
-
2Multi
2
3
Pass
Pass
3
All pass

This hand comes from the very friendly annual 'varsity alumni match. But it wasn't entirely out of amity that we got the defence wrong. Ace of clubs lead, club ruff, heart ruff, ace of diamonds, diamond to the queen, king and ruff, and now declarer had no choice but to drop the king of spades. Of course we gave suit preference with our choice of club and heart spot cards, but I failed to signal for the diamond underlead which would have put me in to give a second heart ruff. (And I could have given declarer a chance to go wrong by not covering the queen of diamonds.)

It doesn't help for North to signal at trick two for a diamond return - ace of diamonds, club ruffed to kill the discard, but declarer can simply play ace and another spade and South will be squeezed in the reds. So South has to work out when returning a heart that the best chance is to play North for ace of diamonds and a heart void. Is that possible?

At the time I thought 3NT was a lucky make, but the hand records say not. Can you see the winning defence?

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