This video shows you how to set up bidding constraints on bridgebase. For instance this means you could for example make one hand always have 4 hearts, always have between 12-14 points, always have a minimum of 2 cards in every suit. Basically whatever you want to do….however you choose. This is a great way to practice certain hand types like 5-4 in the majors, weak 2’s, weak NT, 2NT openers and so forth….