0 Talk Competitive bidding Edit History Category page “DOPI (and ROPI) is a system (and a mnemonic) for dealing with interference after a Blackwood 4NT or DOPI “In a natural system, doubling an enemy overcall of partner's suit opening is for penalty. More recen Negative double “Lebensohl is a convention allowing the responder to differentiate between weak and strong hands when Lebensohl “DEPO is a convention (and a mnemonic) for dealing with overcalls after a Blackwood 4NT or other ace- DEPO Pages in category "Competitive bidding" The following 4 pages are in this category, out of 4 total. D DEPODOPIL LebensohlN Negative double Related Categories Category: Auctions Add category