GIB Double Dummy Solver

[boris3161]

I would find it very helpful to assess the outcome of our bidding sequences if the GIB double dummy solver could be accessed while in the Partnership bidding rooms. After bidding, you usually need to assess whether the final contract is reasonable and the double dummy solver (when taken with a pinch of salt) can be a great help in determining this.

 

I know experienced players can, in no time at all, look at a hand and determine if a contract makes or not - even when including a double strip suicide squeeze - but for lesser mortals, I think it could be useful.

[Kaapo]

if the GIB double dummy solver could be accessed while in the Partnership bidding rooms

 

For the double dummy solver to work, you'd need all four hands. In Partnership Bidding, unless you have GiB playing for EW (or a third player as host), you only have two hands dealt, yours and your partner's. And if you are bidding against GiBs, you can save the hand you just bid, open the lin file and make a GiB analysis if you wish.

 

But it may not be a good idea, anyway. Whan practicing bidding, you are trying to bid games and slams that have a reasonable chance of making. You cannot analyze that based on just one layout of the opponents' cards.

 

Let's say the complete deal is this:

[hv=n=sq82hkj75dk973c32&w=sk9hq9843d86cj975&e=sjt6543h6dqt4ct86&s=sa7hat2daj52cakq4]399|300|7NT by South[/hv]

If you make a double dummy analysis, you will find out 7NT to be makable. In fact, there's a progressive squeeze against West, and South can make all 13 tricks. But this doesn't mean you would wan't to be in 7NT next time same NS cards pop up. GiB cannot really tell this.

[boris3161]

Yes, you are, of course, correct. It wouldn't be perfect. Double dummy solutions aren't always easy to find in practice. However, most of the time, you can get within a trick or so of the double dummy solution and it can provide a good indication of what might happen. I suspect the partership bidding tables are used often by beginners who may not have the speedy analysis skills of the experts and I think it could be helpful.

 

I hadn't appreciated that all four hands weren't available in some circumstances - certainly that would limit the times GIB DD analysis could be available.

 

Even seeing all four hands, I'm not sure I could work out how to take 13 tricks in your example deal!

 

Yes, I could save the hand, open the lin file and analyse it (I didn't realise pb tables created lin files until recently) but wouldn't it be better to make that facility available rather more simply?

 

I'd find it useful and I thought some others might too - it was just a suggestion, not a complaint or issue. Thanks for giving me a workaround but I'd still like the capability if it sould be provided without too much effort.