Quasi-natural 1♦
| 1♦- | 11–15, 2+♦ |
|---|---|
| 1M | Usually 8+, 4+# |
| 1NT | Usually 8–11, 0–3♠, 0–3♥ |
| 2♣ | INV+, 4+♣ |
| 2♦ | LIM+, 4+♦ |
| 2M | PRE, 6+# |
| 2NT | BAL INV, 1–3♠, 1–3♥ |
| 3♣! | CONST, 6+♦ |
| 3♦ | PRE, 6+♦ |
| 3M | S/T, 6+# |
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| 1♦- | 11–15, 2+♦ |
|---|---|
| 1M | Usually 8+, 4+# |
| 1NT | Usually 8–11, 0–3♠, 0–3♥ |
| 2♣ | INV+, 4+♣ |
| 2♦ | LIM+, 4+♦ |
| 2M | PRE, 6+# |
| 2NT | BAL INV, 1–3♠, 1–3♥ |
| 3♣! | CONST, 6+♦ |
| 3♦ | PRE, 6+♦ |
| 3M | S/T, 6+# |