- 3♣︎15-17 5♣︎+5+M → 3♦︎ = relay for the major
- 3♦︎15-17 HCP 5♣︎+5+♦︎
- 3♥︎15-17 HCP 5♥︎+5+♦︎
- 3♠︎15-17 HCP 5♠︎+5+♦︎
- 3♦︎4144 → 3♥︎ shows a ♦︎ fit, 4♣︎ is optional RKCB in ♣︎
- 3♥︎1444 → 3♠︎ shows a ♥︎ fit, 4♣︎ / 4♦︎ are optional RKCB in the respective suit
- 3♠︎4441 → here we play the Kori relay!
- 3NT4414 → here we play the Kori relay!
1♣︎1NT / we play the 1NT scheme – The principle here is that all hands that would be invitational now become minimums, and the bidding is now natural.
General principles. The development is analogous to the 2♣︎ opening, but the difference is that the bids which are non-forcing over the opening here show a minimum.
2♦︎relay (usually the stronger hands with a running (5)6+ card suit go through here)
2Mnatural, suggests a weaker hand, an offer-to-play bid
2NT♣︎, bid 3♣︎, I have a shortage of my own → l/m/h
3♣︎♣︎, a worse hand, an offer-to-play bid
3♦︎both majors with a weaker hand, an offer-to-play bid
3M5M+5+♦︎, a weaker hand
Discussion
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