| pass/redouble | to play |
| Double | takeout |
| 3D | game-forcing, 4 hearts |
| 3H | game-forcing, 4 spades |
| 3S | game-forcing, both majors |
| 3NT | Exclusion Blackwood in clubs, trump suit unknown |
| 4C | singleton or void club, three-suited. A 4NT response from partner is natural and to play. |
| 4D | Minorwood |
| 4 of a major | to play |