Opener bids 3 or 4 ♥ with 4-card ♥ (based on strength), otherwise 3 or 4 ♠.
Lacking this suit responder will correct.
| 2♦ | - | ? | Meaning of the opening: 10-15 HCP, 4-4-1-4, 4-4-0-5, 4-3-1-5, 3-4-1-5 shapes. |
| - 2M: | sign-off (total max. with 4-card fit might bid on) |
| - 2N: | relay, game try+ |
| - 3♣: | to play |
| - 3♦: | 4+ fit in at least 2 of ♣♥♠
(but 5M only in case of 5♥-5♠!),
exactly game try. Opener bids 3 or 4 ♥ with 4-card ♥ (based on strength), otherwise 3 or 4 ♠. Lacking this suit responder will correct. |
| - 3M: | pre-emptive, 5+ suit |
| - 4♣: | game try |
| 2♦ | - (X) - | ? |
| - PASS: | to play | - XX: | asks the longer (better) major. Later raise is a game try, 3♣ is sign off and would not like to compete futher. |
| - 3♣ | not totally bust, opener may compete later |
| - the rest is unchanged | |
| 2♦ | - | 2N | relay, min. game try | ||
| ? |
| - 3♣: | weak hand, 5-card ♣. 3♦ relay asks the 3-card major, 3M (was) game try with4+ suit |
| - 3♦ | (43)-1-5, strong (GF). 3♥ asks the major (3♠ = 3-card ♠, 3N=3-card ♥) |
| - 3♥: | 4-4-1-4, weak. Now responder's 3♠ is to play. |
| - 3♠: | 4-4-1-4, strong |
| - 3N: | 4-4-0-5, strong |