Siege

25.1.06

 

Siege 2/1

1H/S = 5+ cards, Rule of 20

Responses to 1H -

1S = natural (won't have 3 hearts unless invitational+ or very weak)
1N = 5-11, non-forcing
2m = Game forcing
2H = 7-10 approx
2S = Invitational+ raise, usually balanced, asks for shortage
2N = Invitational+raise, usually unbalanced, asks for values
3m = 6+cards, invitational
3H = 3-8 approx, 4 card support
3S = any splinter, 3NT now asks
3N = void splinter in spades
4C/D = void splinter

Responses to 1S -
1N = 5-11, non-forcing
2C = GF except rebid
2D/H = Game forcing
2S = 7-10 approx
2N = Invitational+ raise, usually balanced, asks for shortage
3C = Invitational+raise, usually unbalanced, asks for values
3D/H = 6+cards, invitational
3S = 3-8 approx, 4 card support
3N = any splinter, now 4C asks
4C/D/H = void splinter

After 1H:1S:

After 1H:1S, 1N -

After responder's 2C rebid, opener assumes responder is weak and, unless GF values, bids accordingly:

Responder must now pass with the weak variant, except for after 1H:1S, 1N:2C, 2D, when a misfitting responder can bid 2H instead. Opener may look for a better part-score if he sees fit.

With GF values over a 2C response, opener bids

After 1H:1S, 1N:2D, opener bids 2H without 3 spades, 2S with 3 spades, or higher to GF.

After 1H:1NT, 2m (3+cards), 2NT is invitational without support, 2S is invitational with 4+card support for opener's minor.

After 1H:2m, reverse's show extras, 3m does not. Jumps to game by responder are picture showing (1H:2C, 2H:4H = 2325 with an extra card somewhere, no ace or king in the outside suits)

After 1H:2S -

After 1H:2N -

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