Kaplan Scheinwald

This system was devised by Edgar Kaplan and Alfred Scheinwald.

The main features of the system are:

Weak NT with conventional responses;
Inverted Minor Raises;
Negative Double;
5-Card Majors with 1NT Forcing response;
Limit Jump Raises;
Weak Two Bids;
Strong 2;
3NT opening shows a 2NT hand (20-22 points) with a solid long minor suit
Cue Bids;
Gerber;
Blackwood;
Grand Slam Force;
Roman Asking Bids;
Takeout Doubles;
Weak Jump Overcalls;