Thursday, June 22, 2006 12:31 PM

Hand Evaluation – Doubles & Vulnerability

PITBULLS:

D.S.I.P. theory assumes disciplined bidding by your side. You have your quick tricks for your opener . You have values expected for a 2 level overcall . Your T/O doubles & balances have appropriate values for the level of the bid. Even your systemic toys should be disciplined as to weak or strong.

What if these bids are not disciplined ? A D.S.I.P. double wanting to compete again could lead to disaster as partner must bid again when that is the last thing she wanted to do. She never had her bid in the first place so just wanted to muddy the waters with her opener or overcall. This style should only occur if partner is a passed hand or nv vrs vul. We have written before that partner should be careful with D.S.I.P. theory with this vulnerability scenario & just let “sleeping dogs lie” . If partner does not have her bid , you will push them to game or you could go for an ugly set at a higher level.

What should be the solution ?? Just not compete at this one vulnerability by one partner ? I have been reading many accounts of World championships , Vanderbilts & Spingolds . This is what the Meckwells & other swing pairs do on a regular basis. They open & overcall with such utter garbage , partner just gives maximum leeway so does not make a penalty double or over compete. This is the price to pay when you do not trust partner for any values. Sometimes they miss slams or games based on mistrust.

I feel this is the way to go with D.S.I.P theory when partner may be very light for her opener or overcall. Just give up , believe the opponents so put the green card on the table. You can not have it both ways. If you are going to use pressure tactics on this one vulnerability scenario or when partner is a passed hand , D.S.I.P. theory should not apply. If you are the one who opened or overcalled on this vulnerability even opposite a passed hand, D.S.I.P. theory is fine but partner should be very careful .

Should we go back to trump stack doubles with this vulnerabity ? No , Meckwell & others do not trust partner even for trump stack doubles from the hands which I have read in the Bridge World. They just take their undoubled plus. I guess D.S.I.P. theory should apply 7/8 of the time. 100 % in 3 out of the 4 vulnerabilities . On the 4^th vulnerability , only by the overcaller or opener. Partner should use the green card instead of the D.S.I.P. red card in this situation. Discretion is the better part of valour .

D.S.I.P. doubles on 3 of the vulnerabilities at the game level means that I would like to bid again to make the contract or have you convert the double to set them. D.S.I.P. doubles at the game level nv vrs vul should say I would like to sacrifice unless you have the defense to beat them. Asking permission to sacrifice at this one vulnerability makes sense to me.