BTU transfers 2♦♥

BTU Jacoby transfers are characterized by subsequent forcing relays. Thanks to moving spade invitation to Stayman, we enjoy one more step to separate slam try from choice of games.

Opener super-accepts with maximum 4-card support. To help game try, opener tries to show (4333) or xx in a side suit.

1NT-2♦

Responder rebids forcing 2♠ for a 5=♥ invitation. This forcing bid allows invitation by distribution, e.g. 5=♥ 5+m.

1NT-2♦-5+♥
2♥(R)
2♠!MAX, ♠xx, 4=♥
2NTMAX, 3433
3♣!MAX, ♣xx, 4=♥
3♦!MAX, ♦xx, 4=♥
3♥MAX, 4=♥, none of the above
1NT-2♦-2♥-
2♠!F INV, 5=♥
2NT!UNBAL FG
3♣!S/T, 4+♣
3♦!S/T, 4+♦
3♥INV, 6+♥
3NTBAL P/C
3♠!, 4♣♦!SPL, 0–1#, 6+♥
4♥Mild S/T, 6+♥
4♠!F QUANT
4NTQUANT INV to 6NT
5NTQUANT INV to 7NT
1NT-2♦; 2♥-2♠-INV, 5=♥
2NTMIN, 15 HCP, 2=♥
3♣!P/C, 16 HCP, 2=♥
3♦!P/C, 16 HCP, 2=♥, 5+♣
3♥MIN, 3=♥
3NTS/O, 17 HCP, 2=♥

1NT-2♥

With 5=♠ invitation moved to Stayman, 5=♠ hands here are either weak or game forcing.

1NT-2♥-5+♠
2♠(R)
2NT!MAX, 4333
3♣!MAX, ♣xx, 4=♠
3♦!MAX, ♦xx, 4=♠
3♥!MAX, ♥xx, 4=♠
3♠MAX, 4=♠, none of the above
1NT-2♥-2♠-
2NT!UNBAL FG
3♣!S/T, 4+♣
3♦!S/T, 4+♦
3♥!S/T, 5+♥
3♠INV, 6+♠
3NTBAL P/C
4♣♦♥!SPL, 0–1#, 6+♠
4♠Mild S/T, 6+♠
4NTQUANT INV to 6NT
5NTQUANT INV to 7NT