Wednesday, 14 January 2015

Camrose double fit 3

Game all
Dealer East
  • AKQ105
  • J5
  • 863
  • J85
  • none
  • A10842
  • A10952
  • Q63
N
W
E
S
  • 974
  • K973
  • KQJ74
  • 9
  • J8632
  • Q6
  • none
  • AK10742
West
North
East
South
John
Jonathan
Tommy
Paul
Pass
1
2NTreds
3spades
4
4
Pass
Pass
5
5
Pass
Pass
6
Pass
Pass
6
Pass
Pass
X
All pass

Barry
Tom
Sally
Hugh
Pass
1carrot club
2reds
4
5
All pass

Mike
Helen
John
Tyrone
Pass
1
2NTreds
3
4
5
Pass
5
All pass

John
Paul
Ian
Gary
Pass
1
1
1
3reds
4
5
5
All pass

Iain
Ian
John
Robin
Pass
1
2NTreds
3
4
4
Pass
Pass
5
5
Xspade control
Pass
6
All pass

Hastings
Gerald
Greer
John
Pass
1
1
1
3
4
All pass

Par on this hand is two off in 6X. It's important for East or West to show both red suits. It's easier for North-South to bid high if South opens 1 and North shows spades, because if South opens 1 he'll be worried later about his weak suit. If South and East do bid the auction up to 6. North has a difficult high-stakes guess, which Jonathan Mestel did well to get right.

Camrose double fit 2

Here's the second of the double-fit hands from the Camrose:

E-W Game
Dealer West
  • K3
  • QJ109432
  • 7
  • J104
  • J4
  • 6
  • AKJ1062
  • Q753
N
W
E
S
  • 62
  • K
  • 98543
  • AK962
  • AQ109875
  • A875
  • Q
  • 8
West
North
East
South
Hastings
Jonathan
Greer
Paul
1
3
4
4
Pass
Pass
X
5
Pass
Pass
X
All pass

Heather
John
Brian
Michael
1
3
4
4
5
Pass
Pass
5
Pass
Pass
X
All pass

John
Gerald
Ian
John
Iain
David
John
Rex
Hugh
Tony
Tom
Patrick
1
3
5
5
Pass
Pass
X
All pass

Mike
Mark
John
Rory
1
3
4
4NT
5
Pass
Pass
5
Pass
Pass
X
All pass

Every table played this one in 5X making: at this vulnerability par is 5. For my part, I understand 4 by East, but if you're going to bid 5 and double 5, I think you should try 4 first, so you can get to a good slam sometimes. I think South should bid 4 if sufficient, because I did, thinking it very unlikely that 4 would buy the contract and that my side would learn something about spades. I made slightly the wrong decision by removing 4, shrug.

I don't think it possible for East-West to defend 5 undoubled. But bidding 6 would be a reasonable attempt to get a plus score, not too costly if it fails.

Tuesday, 13 January 2015

Camrose double fit 1

It's good advice to strain to declarer on double fit hands, but just how mightily? Suppose your side's combined shapes are 10-9-4-3 in some order, with all the honours in your long suits and none in the short ones. Then, barring ruffs by the defence, your side can make between 10 and 13 tricks depends on how the short suits divide, and so can theirs. If your perfect bidding system tells you your side can make 10 tricks, how high should you save? You can't trust the opponents to tell you, even if their bidding system is equally perfect and they are unwilling to bluff, because they may think they're saving too. You just have to go with your feel, preferring to bid too high than too low. (Ed Manfield's BOLS tip doesn't apply to big double fits — The five level belongs to opponents, except when it doesn't.)

I played in the Camrose at the weekend, and had the opportunity to dice with some good players on three hands of this sort. Here's how we all got on.

E-W Game
Dealer South
  • 753
  • 6
  • 98754
  • AKQ7
  • J109864
  • AK753
  • none
  • J3
N
W
E
S
  • KQ
  • QJ10942
  • AJ
  • 1082
  • A2
  • 8
  • KQ10632
  • 9654
West
North
East
South
Paul
Frazer
Jonathan
Philip
-
3
3
4
4
5
5
6
X
All pass

Iain
Barry
John
Sally
-
Pass
1
Pass
2
3
3
5
5
6
6
7
X
All pass

David
Tom
Rex
Hugh
-
1
2majors
4minors
4
5
Pass
Pass
5
6
Pass
Pass
X
All pass

Rory
Helen
Mark
Tyrone
-
3
3
5
X
Pass
5
Pass
6
Pass
Pass
7
X
All pass

Robin
Mike
Ian
John
-
3
4majors
5
5
Pass
Pass
6
6
X
All pass

Tony
John
Patrick
Michael
-
Pass
1
Pass
2
3
3
5
5
All pass

This one is made a bit less dramatic by each side's having an ace in a short suit. The par spot is 5X, going one off as a save against 4 or 4, so none of us played there.

If South opens 3, I strongly prefer 3 to 4 for the majors, mainly because I don't want to play in hearts opposite equal length. Over that I like 5 by North, with the proviso that he has to bid 6 if 5 on his left comes round to him. I sympathize with every East-West's decision to bid at the five level, and with every North-South decision to save over it. I don't like the seven-level saves, especially if you haven't bid clubs. And I agree with 6 only if the bidder is right than North-South will save. (Possibly I'm just agreeing with what I did at the table: Certainly I agree with my 5 rather than 5 — 5 is too likely to get a raise.

The best table result for North-South was achieved by Patrick Jourdain and Tony Ratcliff, when North bid 5 then left his partner to guess to lead clubs, as he did not. The best result East-West was achieved by John Salisbury and Mike Tedd, when South doubled 6, I suppose showing good defence relative to what his bidding so far had suggested.