Negative 1♦
1♣-1♦- | ART NEG, 0–7 |
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P | 16–18, 4–5♦ |
1♥! | F, 2+♥ |
1♠ | 16–23, 4+♠ or UNBAL INV 3+♠ |
1NT | 17–19, 2–4♠, 2–4♥, 2–6♦, 2–6♣ |
2♣ | 16–20, 5+♣, 0–3♠, 0–3♥ |
2♦ | 16–20, 5+♦, 0–3♠, 0–3♥ |
2♥ | 16–20, 5+♥, 4+♠ |
2♠ | 21–23, 5+♠ |
2NT | FG, 0–5♠, 0–5♥ |
3♣ | 21–23, 6+♣, 0–3♠, 0–3♥ |
3♦ | 21–23, 6+♦, 0–3♠, 0–3♥ |
3♥! | FG, 4+♥, 5+♠ |
3♠ | FG, 6+♠ |
3NT! | UNT choice of games, 5+♦, 5+♣ |
Dutch doubleton 1♥
1♣-1♦-1♥- | F, 2+♥ |
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1♠! | NF ART NEG, 0–3, 0–5♠, 0–5♥ |
1NT | MAX, 4–7, 0–4♠, 0–2♥ |
2♣! | MAX, 4–7, 5+♠, 0–3♥ |
2♦! | MAX, 4–7, 3=♥ |
2♥ | MAX, 4–7, 4=♥ |
2♠ | PRE, 0–3, 6+♠ |
2NT! | MAX, 4–7, 5=♥ |
3♣♦! | SPL, 4–7, 0–1#, 5=♥ |
3♥ | PRE, 0–3, 6+♥ |
3NT! | MAX, 4–7, 6+♥ |
3♠!, 4♣♦! | SPL, 4–7, 0–1#, 6+♥ |
1♣-1♦; 1♥-1♠- | NF, 0–3 |
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P | 16–21, 4=♠, 2–4♥ |
1NT | 16–21, 2–4♥, usually BAL |
2♣! | F, 4+♥, and 5+♥ if 16–20 |
2♦ | 16–20, 5+♦, 4+♥ |
2♥! | 16–20, 5+♣, 4+♥ |
2♠! | FG, 5+♥ |
2NT | 22–24, 2–3♥, usually BAL |
3♣ | 21–23, 4=♥, 5+♣ |
3♦ | 21–23, 4=♥, 5+♦ |
3♥ | 21–23, 7+♥ |