LEARNING CENTER

Double is for penalties. This is an auction where pass would be forcing, so partner doesn't need to do anything if partner has nothing in particular to say. As a result, choosing to double shows a desire to penalize the opponents.

This is a really important thing to discuss with partners. I'd like to have agreements, but the point of this exercise is that we don't. Absent agreements, it's much safer to treat it as forcing one round than not forcing. If you put a gun to my head, I might guess that it's only forcing if I have more than my bare minimum, but with new partnerships it's best to be practical. I gave credit for Non-forcing as well as forcing, but you can bet that I wouldn't be passing. 

Game Forcing. One thing to consider when you are trying to interpret a bid is if there was a different way to show a particular hand type. Partner could have invited by jumping to 3 after you rebid 1NT, thus this sequence shouldn't be the same thing. Established partnerships can change these meanings around, but without an agreement you need to think about the simplest explanation.

Two suits. Here, it could include hearts; the proper way to respond is by bidding the lowest suit you are willing to play in, either clubs or diamonds.

Cuebids are great ways to keep the auction going. This cuebid could be looking for a notrump game, but could also just be a way to make a forcing bid.

To play. Again you could consider partner's other paths to this point. With a good hand and 5+ hearts, partner would have started with 2. This choice should show a bunch of hearts and less than 10 points.

Redouble shows a willingness to play in 2 redoubled. Typically partner should have five decent clubs. You can choose to pass with two or more clubs or choose to continue in notrump or elsewhere.