kenrexford, on Feb 4 2007, 04:09 PM, said:
Sure, you may object that bidding 4♦ might lead to a diamond lead that otherwise might not be made. However, look what happens if you understand the situation, discuss it, and understand what 4♦ means, and then assess its use in alternative auctions.
Suppose, instead, that the minors were reversed. 4♣ would be the bid instead of 4♦. Now, change the auction such that Opener's RHO doubles 2♣ Stayman. Now, the club lead is assured and the stiff more likely. Almost no risk from the info; greater chance of gain.
The actual 4♦ call might be made after 1NT-P-2♣-2♦-2♥-P-3♥.
The same theory might occur after 1NT-P-2♦-2♠-P-P-X-P when Opener holds ♠xxxx ♥Qxx ♦AKQx ♣Ax, if the double showed values and offense-to-defense high. Again, spade lead likely anyway, and shortness more likely. This hand was from actual play, slam missed.
How about KJxx-10xxx-Ax-AKQ opposite Q10xx-v-KQx-J1098xx? If 1NT-P-2♣-P-2♥-P-3♣ showed clubs, spades, and invitational values, would you expect as Opener that a stiff heart was likely as opposed to remote (partner seems to be 6-4 to introduce such cruddy clubs)? How do you show this powerhouse without a jump to 4♥ as an empathized splinter bid? Soloway-Hamman and Bramley-Feldman failed to find this slam, but this sequence suggests strongly that the rare is probable, tipping the odds in favor of the call.
Meddling from the opponents and other indicators often erase the lead-directive risk and often increase the likelihood of the otherwise unlikely.
Back to the original problem. What about 1♥-P-1♠-2♣-2♥-X(Snapdragon)-3♥-3♠-4♦? NOW, bidding 4♦ makes sense if it shows a hand like I earlier described. Our auction is the same, but the likelihood of the remote being present radically increases, now perhaps outweighing the risks.
So, if the call has been discussed and understood, this new situation might occur where the call threatens much less risk and offers much greater chance of success.
True, you might lose in the long run using it in unimpeded auctions. However, the call might be available in impeded auctions, where the risk is negated and the benefits more likely. It probably occurs more often in contested auctions.
"How about KJxx-10xxx-Ax-AKQ opposite Q10xx-v-KQx-J1098xx? If 1NT-P-2♣-P-2♥-P-3♣ showed clubs, spades, and invitational values, would you expect as Opener that a stiff heart was likely as opposed to remote (partner seems to be 6-4 to introduce such cruddy clubs)? How do you show this powerhouse without a jump to 4♥ as an empathized splinter bid? Soloway-Hamman and Bramley-Feldman failed to find this slam, but this sequence suggests strongly that the rare is probable, tipping the odds in favor of the call."
huge difference in this hand ,it's alterable declarer, and game forced strength(invitational with ♣/♠ 5431 but not 5422).
regards 000002