97

Here responder has support for opener's second suit, hearts,
and shows this by raising to the three level. Responder musl have
ili Icast four-card support to raise opener's second suit. Responder
docsn't have to jump to game, since 3 heart is still forcing. Responder
has  a little extra, and there might be a slam. However, when opener
ıııakes no move toward slam, responder settles for game.
if  opener has raised responder's minör suit, it is still  possible that
ıl ıı partnership belongs in a majör suit or notrump.

With enough strength to take the partnership to game, but only three card support for opener's majör, responder starts with a new suit. Even  though opener shows support for diamonds, responder follows though by showing support for the majör suit. 4spade  is a much better contract than 5 diamond,  since there are three top losers: the spade A and heart A-K