Responses follow Moscito 2007 §2.1.2 and §3.3.
1♦ -
1♥ ! (R) , CONST +1♠ F , 4+♠ 1NT! TRF , 5+♣ 2♣ ! TRF , 5+♦ 2♦ ! CONST +, 3+♥ 2♥ ! PRE , 3+♥ 2♠ PRE , 6+♠ 2NT! LIM +, 4+♥ 3♣ ♦ PRE , 6+#3♥ PRE , 4+♥ 3♠ ! SPL , 0–1#, 4+♥ 3NT! BAL COG , 4+♥ 4♣ ♦ ! SPL , 0–1#, 4+♥
Over 2NT opener’s new suit is a slam try. Over 3NT opener’s new suit shows
shortage.
1♦ - 1♠ -
1NT 0–4♦ , 0–4♣ 2♣ ♦ 5+#
1♦ - 1♥ ! -
1♠ 4=♠ , 4+♥ 1NT 4=♥ or BAL MIN 5=♥ 2♣ 5+♥ , 4+♣ 2♦ 5+♥ , 4+♦ 2♥ 6+♥ 2♠ MAX , 5+♥ , 4=♠ 2NT! MAX , 6+♥ , no SPL 3♣ ♦ ! MAX SPL , 0–1#, 6+♥ 3♠ ! MAX SPL , 0–1♠ , 6+♥
1♦ - 1♥ ! -♠ -
1NT NAT NF 2♣ ! (R)
1♦ - 1♥ ! -♠ - 2♣ ! -
2♦ ! BAL MIN , 4=♠ , 4=♥ 2♥ ! 4414 2♠ ! 4441 2NT! MIN , 5+♥ , 4=♠
After 1NT we depart from Moscito with a structure resembling XYZ. 2♦ is the
game-forcing relay, as in XYZ. The two bids around it are invitational and
differ only by heart length. 2♣ shows a doubleton heart, and 2♥ shows a
singleton or void.
1♦ - 1♥ ! -
2♣ ! INV , 2=♥ 2♦ ! (R) , FG 2♥ ! INV , 0–1♥
1♦ - 1♥ ! -♦ ! -
2♥ BAL MIN , 5=♥ 2♠ ! BAL MIN , 4=♥ 2NT! 1444 3♣ ! 4=♥ , 5+♣ 3♦ ! 4=♥ , 5+♦
1♦ - 2♦ ! -
2♠ ! MAX , 4=♠ , 5+♥ 2NT! MAX , 5+♥ , 4+♦ ♣ 3♣ ♦ ! MAX , 4=♥ , 5+#3♥ MAX , 14443NT MAX , 6+♥ 3♠ ! SPL 4♣ ♦ ! SPL