A minor suit bid that is either natural or that shows a pattern meeting the definition of a natural NT opening."
This is a flawed definition.
Consider a 1♦ opening agreement that promises either diamond length or a balanced hand.
Is this agreement quasi-natural under this definition ...
It is a game force with at least five diamonds.
In the absence of special agreement I would assume it denied 4-card support for the major that opener just bid.
Whether it promises a 4-card (unbid/other) major is a matter for partnership discussion. Idealy it should but if your ...
Ping, why would you do this to your students?
The purpose of education for young people is to prepare them for the world.
When your students go out into the bridge world they are going to find that the only system they know is one that no one will play ...
Ducking the first diamond potentially loses a trick whenever the hearts are running.
If the ♠K is onside you have 11 top tricks but after ducking they can cash two clubs to hold you to 10 tricks.
If the ♠K if offside you have 10 tricks after losing the finesse ...
I'm not certain how to read this:
"7. A 2D opening that shows any 4441 or 5440 pattern, as long as it shows at least Average Strength."
What if this opening is limited to some 4441 and 5440 patterns? Two popular limitations are must have spades and no 5-card ...