5. One trump, queen of one suit, and knave guarded of another should not be played unless the queen is also guarded, or the card of the fourth suit is a court card.
6. One trump, a king and a queen, both unguarded, should not be played, unless the fourth suit contains a card as high as an ace.
7. Four court cards without a trump are too weak to play, unless they are of three different suits.
Refuse with three queens, if two are singly guarded; otherwise, accept.
Lead from your guarded suit, and lead the highest.
If the strong suit led is not trumped, persevere with it, unless with king of trumps, or queen (king not having been announced), or knave ace, when lead a trump before continuing your suit.
You should not lead trumps at starting, unless you hold king or queen, knave, or knave ace, with court cards out of trumps.
The score has to be considered. If the dealer is at four, and the king is not in your hand nor turned up, play any cards without proposing which give an even chance of three tricks, e.g. a queen, a guarded knave, and a guarded ten. The same rule applies to the dealer’s refusal.
At the adverse score of four, and king not being in hand or turned up, any hand with one trump should be played, unless the plain cards are very small and of different suits.
If the non-dealer plays without proposing when he is four to three, and the dealer holds the king he ought not to mark it. The same rule applies to the non-dealer after a refusal, if the dealer is four to three.