[42krunner]

Hello:
I am trying the free hands on Bridge Master and in many of them GIB is not following suit on me (perhaps when I am playing the wrong card).

For instance in 4 A-3:
1) Heart J-3-7-A
2) 8C lead from South, 6C, KC, 5C
3) 2C lead from North, 6S(!) from East!

vs
1) same
2-5) Clear diamond tricks, def discard spades
6) 2C lead from North, 5C, AC, 6C
7) 9C lead from South, 7C, 3C, 10C(!) from East!

Not the right play on my part, sure, but hard to learn when GIB is revoking. Or do the opps exchange cards under the table depending on your play?

Thanks!

[diana_eva]

42krunner, on 2013-November-11, 21:09, said:

Hello:
I am trying the free hands on Bridge Master and in many of them GIB is not following suit on me (perhaps when I am playing the wrong card).

For instance in 4 A-3:
1) Heart J-3-7-A
2) 8C lead from South, 6C, KC, 5C
3) 2C lead from North, 6S(!) from East!

vs
1) same
2-5) Clear diamond tricks, def discard spades
6) 2C lead from North, 5C, AC, 6C
7) 9C lead from South, 7C, 3C, 10C(!) from East!

Not the right play on my part, sure, but hard to learn when GIB is revoking. Or do the opps exchange cards under the table depending on your play?

Thanks!

Opponents' cards "move around" depending on how you play, so that you cannot make the contract unless you take the best line as declarer.

[Stephen Tu]

Bridgemaster doesn't utilize GIB or other bridge playing engine. It is scripting actions depending on what you play. One of the features of bridgemaster is that the opps do "exchange cards" if you take the wrong line; e.g. if the point of the deal is to create an elimination and endplay to avoid guessing a queen, if you misplay and try to finesse for it instead, the finesse will lose, no matter which way you take it! The layout of the opps cards will change to defeat you if you do not take the optimal line (in the view of the author, on a small # of the harder problems there has been some debate on the true optimal line). This makes bridgemaster a great training tool, as you cannot play wrong but get lucky because of layout, you fail.

[42krunner]

Ok, great! That makes sense.

[barmar]

We just had a discussion of this a few weeks ago:

http://www.bridgebas...master-problem/