[No warranty. Corrections solicited. Freely redistributable.] Here are "Double Dummy Par" results for the 28 Boards in play at the MITDL Special IMP pairs, 2000-04-04. (Budd-Piltch and Kinney-Gabay played all Boards in the Open Room. See their results, with some comment by Pete Matthews, at .) Double Dummy Par results are manually derived by Paul Wendt from the "Double-Dummy hand analysis for 00-04-04" by Walter Lee. No warranty. DOUBLE DUMMY PARS, 2000-04-04 ------------------------------ Are there multiple double-dummy equivalent cntrct NSplus EWplus Board# (dd-eq) levels? If not, why not? ------ ------ ------ ------ ------------------------------------------ 4Hs 420 1 3Dns 110 2 forced to 3Dns by 2He-1 nonvul. 2Ss+3 140 3 2Ss 3Ss are dd-eq (and "impossible") 4Hns 620 4 5HXns-1 200 5 6Sew 1430 6 5mns 600 7 6Hew 980 8 5H,5CXns-2 300 9 3New 660 10 4Hew 420 11 3HXew-1 100 12 3Nns 600 13 3Nns 400 14 6Hns 1430 15 3Sew 140 16 forced to 3Sew by 3Hns-1 nonvul. 4Hew+5 450 17 4H 5H are dd-eq 7Nns 2220 18 4Sns+5 450 19 4H 5H are dd-eq 1Hew+3 140 20 1H 2H 3H are dd-eq 4SXew-3 500 21 7Nns 1510 22 4Dns 130 23 forced to 4Dns by 3Sew+3 vul. 3Nns+5 460 24 3N 4N 5N are dd-eq 3SXns-1 100 25 3New+4 630 26 5Cns+5 400 27 2Sns+2 110 28 forced to 2Sns by 2He-1 nonvul. "double-dummy equivalent" or "dd-eq" contracts are dd-makeable contracts of equal value, at successive levels such as 4H+5 and 5H+5, where THEY cannot overbid the lower-level contract(s) with double-dummy safety. That is, THEY cannot "force" the auction to the highest level WE can make. No warranty. ----Paul -- Paul Wendt, Watertown MA member, SABR internet committee (baseball research) player, MIT/DL bridge club (card game; like to sit East)