A suit is said to be established when you can win every remaining trick in it, no matter who leads it. As it is very important that the hand which is longer in the suit should be able to lead it without interruption when it is established, good players make it a rule always to play the high cards from the shorter hand first, so as to get out of the way. With Q 10 and three others in one hand, K J and one other in the other hand, the play is the K and J from the short hand, keeping the Q 10 in the long hand.
If there is any choice, that suit should be selected which contains the longest sequence, or the sequence with the fewest breaks. It should be noticed that the sequence need not be in one hand; for it is almost as valuable if divided, and it is especially advantageous to have the higher cards concealed in the declarer’s hand. Its continuity is the chief point. For instance: Declarer and Dummy hold between them one suit of K J 9 7 5 4 3, and another of Q J 10 9 8 7 5. The latter should be selected, because two leads must establish it.
In establishing a long suit it is very important to note the fall of the missing cards in the sequences. In the first of the two combinations just given, the declarer should be as careful to watch for the fall of the 8 and 6 as for the A Q and 10.
Leading. It is quite unnecessary to follow any system of leads, further than to distinguish between the combinations from which high or low cards are led. But it is important to remember that although a high-card combination may be divided, it should be played as if in one hand. For instance: The declarer holds Q J x x x of a suit; Dummy having A x x. By leading Q or J, Dummy is enabled to finesse, as if he held A Q J. The declarer holds K J x x x; Dummy having Q x x. The play is to force the Ace, as if the combination of K Q J x x were in one hand.
Many opportunities arise for leading the Ace first from a short suit, in order to secure a ruff on the second or third round.
Second Hand Play. If any card is led by the adversaries which the fourth hand cannot win, the second hand should cover it if possible; for unless he does so, his weakness will be exposed, and the suit will be continued. This is especially true of cases in which the second hand holds single honours, such as Jack and others, or Queen and others. Even the King should be played second hand in such cases, unless it is so well guarded that the Ace must fall before the King can be forced out.
If the fourth hand can win the card led, it is seldom necessary to cover second hand. For instance: If the Jack of trumps is led, the dealer holding Q 9 7 4, and Dummy having A 6 3 2; there is no need to play the Queen. If the King is in third hand, such play would establish the Ten. If the King is with the leader, it or the Ten must make. If Dummy were second hand with the same cards, Jack being led, he should not play the Ace, for third hand must play the King to shut out the Queen.
With A Q 9, partner having K and others, it is best to play A on J led.
If the dealer has Ace and several others of a suit led, Dummy having only two small cards, a force may be certainly secured by passing the first round. If Dummy has the Ace, and passes second hand, the dealer failing to win the trick, the adversaries will of course see that the play is made in order to force the dealer on the third round.