понеделник, 23 април 2007 г.

Openings

1.5 Openings:
1C: 1-4Op, 4+C, NAT or 1Op BAL or 4Op BAL
1D: 1-4Op, 4+D, NAT
1H/S: 1-4Op, 5+H/S, NAT
1NT: 2Op, BAL, NAT
2C: 3Op, BAL (Mexican)
2D: 2-3Re, 5+S-4+H or GF Op, ANY
2H/S: 2-3Re, 5+H/S-4+ any side suit
2NT: 3RE, 6+C GOOD or 4+Op(2+Op HCP), 5+H-5+D/S
3C: 3RE, 6+D GOOD or 4+Op(2+Op HCP), 5+C-5+H/S
3D: 3RE, 6+H GOOD or 4+Op(2+Op HCP), 5+D-5+C/S
3H: 3RE, 6+S GOOD or 4+Op(2+Op HCP), 6+S-5+H
3S: (aka Gambling) AKQxxxx+, any suit.
3NT: 2-3Re, 7+C/D, bad suit, PRE
4C/D: 4Op(2Op HCP), 7+H/S
4H/S: 2-3Re, 7+H/S, PRE
4NT: BW
5C/D/H/S: 1-3Re, 7+, PRE
5NT: 1-3Re, 5+-5+, PRE, normally C-D
6C/D/H/S: 1-3Re, 8+, PRE
6NT: 1-3Re, 6+-6+, PRE, normally C-D
Discussion:
Why 2C Mexican?
-> It is dangerous zone of HCP BAL for overbid/ubderbid. In competition can't be shown normal way.
Why xfer PRE, combined with strong 2 suiters?
-> Xfer preemts rightside the contract. Strong 2 suiters are dangerous for overbid in high competitive auctions and very hard to manage after strong artifical opening.
Why 2D include any GF?
-> Because it comes too rare and is not much better, if you open it with 1 way strong opening at 2 level...

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