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All comments by Ian Grant
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Would need to find more efficient way to import the session data, I typed this one. I also did the optimum scores myself via inspection.

I think the DD analysis to obtain the datum is less random than the Butler method. You could ‘zero-max’ with a Butler Datum but will end up with more zeroes as the Butler datum will normally be lower than the optimum score. I would expect the Butler datum to approach the optimum score as the quality of the field improves, this is something I can test using the multi-division IMPs pairs league on BridgeClubLive, but sadly divs 1&2 pkay different hands to the rest. Obviously I would prefer the optimum score to be based on single dummy analysis, I'm not sure this is achievable.

I agree about offense being easier than defence, got roasted today by quality opps who had all the cards. If the opps declare 18 of 27 then that's 18 zeroes using my method, 18 large negatives using the nrmal one. However, using my method get the defence right and you will be rewarded with a zero score, get it wrong and you will lose imps; the difference is that your opps won't benefit from your misdefence or be punished for your brilliance.
July 13
Ian Grant edited this comment July 13
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Example added as page 2
July 13
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How can it not be true?
July 13
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Men are entitled to toilet-time privacy just as much as women are.
July 13
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Too deep for me.
July 13
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You have hit the nail on the head, low percentage events have a high impact. The better players who don't bid the low percentage slam get punished for their skill.
July 13
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It is essential that the boards are random, I am trying to mitigate the problems caused by random bidding and play, neither of which are desirable.

It is interesting that the pair who moved from fifth to first using my method had the flattest boards overall, they made the fewest mistakes.
July 13
Ian Grant edited this comment July 13
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As opposed to Butler scoring in a mixed ability field which has multiple dummies.
July 13
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One-off is the alias of a member of BridgeClubLive.
July 13
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And the one being deceived suffers, but the ones sitting the same direction at other tables don't gain.
July 13
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If I was bidding at all it would be 4 as puppet stayman, its close I think. In fact, I've changed my mind!

Its a pity you didn't have XX = 23-24 available so that 2NT shows 25-27.
July 13
Ian Grant edited this comment July 13
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The one I had made read “It's a Grumpy World” accompanied by my BW photo.
July 12
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Since ones partner will be sitting opposite how about
“Have you considered passing?”
July 12
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AI Bridge is our only hope, get the computers hooked like we are and there is no end to what they won't achieve.
July 12
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Even playing UDCA a 10 should be encouraging.
July 11
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Looking more like Litigation Blackwood…
July 11
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We were playing mini-maxi against him and overcalled because we were mid-range; we didn't get to show the second suit and so failed to find the fit. His opinion was that its best to show your shape.

(We know Brian quite well so it wasn't gratuitous advice)
July 11
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Advice from some top players:

Short 1 - 2 natural, 2 michaels (Alex Hydes)

Don't play split range (Brian Senior)
July 11
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We usually draw for 1st round seating from a pile of paper slips.
July 11
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So the top rated teams just play each other all the time and it's almost impossible for anyone to break in. Is this what happens when you let sponsors dominate the game?
July 10
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