1♦ - 1♥ -

1♠    =    4♠5+♦, does not deny 3 card ♥

1NT    =    4+♣, undefined, does not deny 3 card, F1    ➲

2♣    =    6+♦    ➲

2♦    =    5+♦, 3♥, 11-13, natural continuation

2♥    =    4♥, 11-13

2♠    =    4♠, 18+

2NT    =    natural

3♣     =    GF, 5+♦5♣, denies 3 card ♥ 

3♥    =    4♥, 14-16, some singleton

3♠/4♣ =    splinter

3NT    =    TP

back to 1♦ -