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Possibly Instructive Hand


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Right after I chose my line last night, I saw an alternative line that I thought was a tiny bit better. Maybe there's a better line still, not sure. Nonetheless, I thought I would share.

 

Opponents silent, playing 5

 

[hv=d=s&v=e&n=sat64hqj9dcaqt873&s=s7ht54dakj97653c4]133|200|Scoring: MP

5 led.[/hv]

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Assuming no indication from the bidding I would take the obvious line. Ace clubs AK diamonds hoping for the queen to drop. Not very good odds, about 25% + singleton K clubs coming down what ever that is. (1.5%?) Another line is to play west to have led from Kxx. (Finesse, Ace clubs discarding heart, ruff club. AK diamonds, spade to ace, club discarding second heart) A priori odds of clubs breaking Kxx opposite xxx is about 31% (I think). However the actual odds of choosing to lead from Kxx as opposed to leading a heart or a spade must be a multiple less.
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A priori odds of clubs breaking Kxx opposite xxx is about 31% (I think). However the actual odds of choosing to lead from Kxx as opposed to leading a heart or a spade must be a multiple less.

3-3 break is 35%, K onside would bring that down to 17%. Less since the club was chosen as the most attractive lead, implying LHO lacks the AK or KQ or various other holdings that are harder to quantify.

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Assuming no indication from the bidding I would take the obvious line.  Ace clubs AK diamonds hoping for the queen to drop.  Not very good odds, about 25% + singleton K clubs coming down what ever that is. (1.5%?)  Another line is to play west to have led from Kxx.  (Finesse, Ace clubs discarding heart, ruff club.  AK diamonds, spade to ace, club discarding second heart) A priori odds of clubs breaking Kxx opposite xxx is about 31%  (I think).  However the actual odds of choosing to lead from Kxx as opposed to leading a heart or a spade must be a multiple less.

How does singleton K help in the first line?

 

Also clubs Kxx with LHO being 31% seems like an overestimate, even if you assume that the lead can be from the K.

 

Anyway, my guess: the point of the hand is to decide how to get to hand to play the AK. A and ruff is probably better than trying to ruff a back to hand, in case 5 is singleton.

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Anyway, my guess: the point of the hand is to decide how to get to hand to play the AK. A and ruff is probably better than trying to ruff a back to hand, in case 5 is singleton.

Yup. Won the A, clicked on a small on the board and thought to myself "wait, I bet a was 1% better. oh well, it won't matter"

 

It mattered.

 

Q was doubleton, and we were the only pair in 5. :(

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Right after I chose my line last night, I saw an alternative line that I thought was a tiny bit better. Maybe there's a better line still, not sure. Nonetheless, I thought I would share.

 

Opponents silent, playing 5

 

[hv=d=s&v=e&n=sat64hqj9dcaqt873&s=s7ht54dakj97653c4]133|200|Scoring: MP

5 led.[/hv]

The auction would help a bit. I think it makes a difference as to how likely the lead was a singleton.

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