1 senza

L'apertura di 1 senza è una licita di apertura molto usata nel gioco del bridge. È abbreviata con 1 SA (Senza Atout in francese) oppure 1 NT (No Trump in inglese). È di particolare interesse perché descrive adeguatamente la mano dell'apertore e consente di sviluppare delle sequenze di licitazione ben studiate e finalizzate all'ottenimento del miglior contratto di gioco.

Apertura

1NT 15-17 po BIL 4.3.3.3 - 4.4.3.2 - 5.3.3.2[1]

Si tratta di una mano bilanciata e con un range di forza molto ristretto: appena 3 punti onori. Ciò consente al compagno di valutare in maniera accurata la forza di gioco della coppia.

Risposte

1NT P ?

Lo sviluppo dell'apertura di 1 senza è Stayman orientato: buona parte delle mani da manche o da slam utilizzano questa licita. Le altre risposte sono più utilizzate per contratti parziali. Le risposte possono suddividersi in:

  • Passo: con mano debole di pochi punti e senza quinte nobili o seste minori
  • Transfer Jacoby a livello di 2 con palo quinto o sesto; ricerca di un contratto parziale
  • 2 Fiori Stayman da 8 PO in su; invitante manche
  • Risposte a livello di 3; forzanti manche
  • Transfer Texas a livello di 4; forzanti manche, invitanti slam
  • 4 senza, quantitativo; invitante a slam ma non forzante
1NT P P 0-7 po 4-c♠, 4-c♥, 5-c♦, 5-c♣ Mano debole senza quinte nobili o seste minori
1NT P 2♦ 0-7 po 5+c♥ Sottocolore per le cuori
1NT P 2♥ 0-7 po 5+c♠ Sottocolore per le picche
1NT P 2♠ 0-7 po 6+c♣ Sottocolore per le fiori
1NT P 2NT 0-7 po 6+c♦ Sottocolore per le quadri
1NT P 2♣ 8+ po ?c♥, ?c♠ Inizio della Stayman, possibile interesse per i nobili, dichiarazione forzante 1º giro
1NT P 3♣ 8+ po 6+c♣ Forzante manche[2]
1NT P 3c♦ 8+ po 6+c♦ Forzante manche[2]
1NT P 3♥ 8+ po 1+c♥, 3-c♠, 4/5c♦, 4/5c♣ Bicolore minori, forzante manche, invitante slam
1NT P 3c♠ 8+ po 3-c♥, 1+c♠, 4/5c♦, 4/5c♣ Bicolore minori, forzante manche, invitante slam
1NT P 4♣ 8+ po 6+c♥ Sottocolore per le cuori[3], forzante manche
1NT P 4♦ 8+ po 6+c♠ Sottocolore per le picche[3], forzante manche
1NT P 4NT 16+ po BIL Quantitativo, garantisce somma 31 a fronte del minimo, invitante slam

Note

  1. ^ Anche quinta nobile con 15-16 po, mentre con 17 po si apre nel nobile
  2. ^ a b Sondaggio per lo slam con possibilità di fermarsi a 3NT
  3. ^ a b Colore chiuso o semichiuso se possiede 3/4 onori su 5 (A, K, Q, F, 10)

Bibliografia

  • (EN) Brent Manley (a cura di), 1NT OPENING, in The Official Encyclopedia of Bridge, 7ª ed., p. 211, ISBN 978-0-939460-99-1.

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