1♦ - 1♥ - 2♣ -

2♦  = TP    ➤    2♥ = 5+♦3♥, 14-16, natural follow up ; 3♥ = 5+♦3♥, 17-19, natural follow up

2♥  = TP

2♠    =    artificial, GF

2NT    =    invitational

3♣    =    interested for 3NT  ♣ ST, denies ♠ ST

3♦/♥     =    invitational

3NT    =    TP, s ♠ ST

back to 1♦ - 1♥ -

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