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Deep Finesse Bug


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[hv=pc=n&s=s6hqj7dq72ck98763&w=sqjt3h982da63cqjt&n=sk874h65dkt95ca54&e=sa952hakt43dj84c2&d=s&v=b&b=7&a=ppp1hp2hdp3c3hppp]399|300[/hv]

Matchpoints.

 

In the pub after the game, we often do not believe Deep Finesse, but it is always right and stated EW could only make eight tricks in hearts here. We quickly found the only winning defence, which is an initial diamond lead and North wins and continues diamonds. South ruffs the second spade and can cross in clubs for a second spade ruff. However, when one loads the hand into Deep Finesse (and I just downloaded it again in case my version was corrupted), it does not analyse a heart contract at all, perhaps in disgust at our opponent's auction. It displays the message:

 

"New cache cell: Existing cache Cell: Unexpected Error: INTERNAL ERROR: inconsistent prc won results",

under the banner of Deep Finesse Alert.

 

Does anyone else get this error, as it is the first time I have ever seen it? And it handles other hands fine still!

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When I press "GIB" on your diagram it produces the correct solution. I thought GIB uses the same DD solver as Deep Finesse. Or is that no longer true?

 

Not that I don't believe you of course, just a suggestion that it might be a problem in the surounding code rather than with the DF algorithm itself.

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When I press "GIB" on your diagram it produces the correct solution. I thought GIB uses the same DD solver as Deep Finesse. Or is that no longer true?

 

Not that I don't believe you of course, just a suggestion that it might be a problem in the surounding code rather than with the DF algorithm itself.

Thanks, helene. If anyone has Deep Finesse separately, they can confirm your theory.

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I receive the same error after inputting the deal. The version is 2014.2

Thanks. My version is the same, released on May 24 2014. If you swap the eight and ten of spades, it can analyse the hand then! But if you swap the ace and jack of diamonds, so that most leads beat 3H, it cannot do so.

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I have had actually had a lot of bugs with Deep Finesse. Sometimes it will take you through to trick 8 and suddenly decide to say that DD is a different number of tricks. I have switched over to Bridge Solver which has given me no trouble at all and has lots of great capabilities.
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I have an old version of DF, circa 2000. It does not have any bells and whistles, only Win and Loss marked against each card in the hand on lead, does not give number of tricks plus/minus like GIB. The solver had no issues in identifying the lead which beats it and subsequent play as well.
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