Problems With Minor One-Suiters
Problems With Three-Suited Hands
So What Do You Open 2C?
Bidding Over Interference
[Open] one heart. DO NOT open 2... [your LHO] may overcall and be raised preemptively to the five or six level. Then you will have to guess which suit to introduce... Do not be concerned about playing 1. Too many high cards are out. Your rebid will be 6.
Is Hardy right that 1H will never get passed out? The key is to 2nd chair. If he has as few as 10 HCPs and a hand not suited to making a bid over 1H, then it very well could get passed out if the remaining points are split 4-8.
On the other side are these arguments against opening 2-suited hands 2:
http://www.prairienet.org/bridge/b_2c.htm, it says that with - AK82 KQJT865 KQ:
You'll fare better with a 1D opening. [An] important consideration is that a 2C opener makes it very difficult, and sometimes impossible, to find a 4-4 major-suit fit, which is a real danger on this hand. If partner has 4 hearts, a 1D opening may be the only way you'll get him to bid the suit. (Well, that -- or playing 19-HCP 2C.)
The above web site also calls strong 4-4-4-1 hand the real bane of the 2C bidder's existence because of the difficulty in finding a fit once you start on the higher level. Suggestions include playing a jump rebid by the 2C opener to show 4-4-4-1 with the singleton in the next higher suit bid, or to apply good guessing and skill in playing 4-3 fits.
The site offers as alternatives to opening 2C with 4-4-4-1:
If you don't open 2C with 2-suited hand, 3-suited hands, nor 1-minor-suited hands, the only hands you can open 2C are strong balanced hands and 1-major-suited hands.
That's going to make 2C openings even rarer than they already are, which means that the bid is being wasted much of the time. It becomes little more than another 2N opening.
If you really accept the caveats above regarding 1-, 2-, and 3-suited hands, then again, we must point out that playing a 19-HCP 2C solves most, if not all, of the problems because the heart of that system is in locating fits at the lowest possible level.
Below are various responses to an opening 2C:
2D Negative (less than 7 HCPs) - Rarely used by experts any more.
2D Waiting - Probably the most commonly used "system" among average players. It says you do not have a biddable (good 5+ card) suit and/or you have fewer than 7 points.
Non-Jump Responses - If you are not using step responses, then the bids 2H through 3D are natural. When playing 2D-Waiting, these bids require 5+ cards, 2 of the top 3 honors, and 7+ HCPs. Since a 3C/D bid preempts opener out of showing a major on the 2 level, the suit and hand should be better. Even 2S should be a little better than 2H. With suits of lesser quality, bid 2D-Waiting.
Jump Responses - Some play this as a semi-solid (missing a top honor) 7+ card suit, while others play it as a solid 6+ card suit.
2N - In theory, it shows a balanced, positive hand, but since it preempts partner's majors, few experts use it, preferring to bid 2D instead. In 19-HCP 2C, it is used to show the minors and less than 6 HCPs.
3N - Again, this is too unilateral to be natural. Some play it to promise a 7+ card solid suit, such as when using jump responses to show only semi-solid suits.
Systems for responding over interference are limited mainly by your imagination. The important point is that you and your partner should agree on something. Here is a sample system:
If responder and RHO pass, opener can rebid as follows: