C
Score, love-all. C assists.
Remarks.—B leads the right through the assisting hand, C plays the ace, D the seven, and A should play the king. If A plays the queen to give information to his partner, B should at once continue with the eight of hearts, and thus effect a euchre. If A plays the king, B's natural play would be to lead the ace of clubs, whereby A and C make their point. Few cases arise when you should conceal information from your partner, but this is one of them.
CASE III.
Ruffing a winning card in order to draw trumps and score two.