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LC Standard -- Notrump Overcalls


A 1NT overcall is roughly equal to a 1NT opening in HCP. The vulnerability is the guiding factor. If vulnerable, the range is closer to 16-18. If not vulnerable, 15-17 is more likely. Of course, a stopper in the opponent's suit (especially if a major) is presumed. After our 1NT overcall, we pretend that the opening bid never happened. So, "Systems On" -- 100% "Front of Card." If their responder acts after the 1NT overcall, we use the system we use for when they overcall our 1NT opening.

Example:

W
N
E
S
1
1NT
2
?

Pretend we opened 1NT and they overcalled2.

A 1NT overcall in sandwich positionis natural/strong (many years ago, I played it as light takeout--but now, their are too many thieves out there and you need it as natural).

Example:

W
N
E
S
1
P
1
1NT

This is "15-18" with stoppers/balanced.

A 2NT overcall (after their 2-level opening) shows a 1NT opening -- and is also influenced by the vulnerability. Of course, after a preempt, there are fewer options, so occasionally the 2NT bidder could be off-shape. After a 2NT overcall, "Systems On."

A 3NT overcall is natural, but very wide-ranging. I try not to remove a 3NT overcall without good reason, but if doing so, use4=Staymanand4/4 as Transfers (not the best system, but easy to remember, for the once a year that you'll use it).

A balancing 1NT is about a king less than a direct 1NT overcall. It is still "natural" and systems are still on. Even by a Passed Hand, 1NT in balancing seat is natural (about 10-11).

Ajumpto 2NT over their 1-of-a-suit opening shows the two lowest unbid suits. So, after they open 1 or 1, the jump to 2NT shows both minors. After they open1, the jump to 2NT shows + . After they open1, the jump to 2NT shows + . The suit quality is vulnerability-dependent (sounder if vulnerable). Always, at least 5-5 is promised. The bid is assumed to be preemptive, but it could be very strong; try to avoid it with "medium hands."

A jump to 2NT in balancing seat (for example: (1)-P-(P)-2NT) is Standard. Just to make sure everyone knows what Standard is, that means 18-20, balanced and natural (no preempting in balancing seat). Of course, after such a rare animal, systems are still on. Balancing as apassed-handwith 2NT is unusual (two-suited) [Example: P (2) P (P) 2NT].

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