Hand evaluation. Rule of 20 Opening
Can you open with have fewer than 12 points ?
What if you have a really nice hand, but only 11 points, or even 10 ? Can you open ? The answer is yes, if you have some special length to make up for your lack of points. Add together the length of your two longest suits, add that to your points, and if you get to 20 or more you can open your longest suit. Note though that your honours should be in the long suit/s, not in the side suits.
Third seat
You can drop to "rule of 18" at the third seat, where the first two seats have passed.
Bidding in the third seat can be a good idea when you are weaker than usual. That's because the first two seats have both passed, and therefore there is a higher than usual chance that the last player will bid. So, when your bid is a bit risky you will probably be overcalled. Your bid therefore carries all the benefits of an interruptive bid, and may also help your partner when it comes to selecting a lead.
There are other situations when you can sometimes open with even fewer points, as few as 6-10. E.g. If you are weak but have 7+ cards in a suit (read the notes on 3 level Preemptive bids). A similar situation arises when you are weak but have a good 6-card suit: for this situation, intermediate players sometimes adopt a "weak two" opening, which is similar to a pre-emptive 3-level bid in its effect.
Now try the quiz
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