The Minneapolis Lead. This is another variation in the leads, which is confined to one combination; that of Ace and any four other cards, not including the King. With strength in trumps the fourth-best is led instead of the Ace, the theory being that the Ace is more likely to be valuable on the second or third round of such a suit than on the first, and that the trump strength justifies the finesse of the original lead. With weak trumps the Ace is led. Some players extend this principle to the Second Hand, and play Ace on a small card led, when holding A x x x x with weak trumps. This is open to the objection that it gives up command of the adverse suit too early in the hand; but it saves many a trick.
The Plain-suit Echo. This is another device for giving information as to number. When the original leader begins with a high card, the Third Hand should play his third-best if he holds four or more; and on the second round his second best, always retaining his fourth-best and any below it. The value of this echo is much disputed, and the adversaries can usually render it ineffective by holding up small cards; a practice very much in vogue with advanced players.
Low’s Signal. This is the latest system of indicating to the leader the number of cards in his suit held by the Third Hand. With four or more of the suit, the third-best is played to the lead of a high card, or when no attempt is made to win the trick. In retaining the suit, the second-best is led if three or more remain, and on the third round, or in a discard, the highest is played, always retaining the fourth-best and those below it. For instance: With the 8 7 5 2 of a suit which partner leads, the 5 is played to the first round. If the suit is returned, the 7 is played; and next time the 8. Holding only three originally, the lowest is played to the first round, and the higher of two returned, in the usual way. The chief value of this signal is that the return of the lowest of a suit shows absolutely no more, instead of leaving the original leader in doubt as to whether it is the only one, or the lowest of three remaining. It is also a great exposer of false cards.
Discard Signalling is another method of indicating plain suits. When a player is known to have no trumps, and therefore cannot be calling for them, he may use the trump signal in any plain suit which he wishes led to him. As a general rule, a player should not use this signal unless he has a certain trick in the suit in which he signals. Some players use what is called the reverse discard; a signal in one suit meaning weakness in it, and an invitation to lead another. This avoids the necessity for using the good suit for signalling purposes.
Unblocking. When the original leader shows a suit of five cards, and the Third Hand has four exactly, the latter should keep his lowest card, not for the purpose of echoing, but in order to retain a small card which will not block the holder of the longer suit. If the Third Hand has three cards of the suit led, and among them a card which may block his partner, he should give it up on the second round. For instance: Holding K 4 3, and partner showing a five-card suit by leading Ace then Jack, Third Hand should give up the King on the second round. Again: Holding Q 9 3, partner leading Ace then Eight; Second Hand playing King second round, Third Hand should give up the Queen. Again: Holding K Q, partner leading the 8 originally, won by Fourth Hand with Ace; the King should be discarded or otherwise got rid of at the first opportunity.
Short-suit Leads. Many players will not lead a long weak suit unless they have sufficient strength to justify them in hoping to establish, defend, and bring it in, with reasonable support from the partner. With a long suit, headed by a single honour, weak trumps, and no cards of re-entry, they prefer selecting a strengthening card for the original lead, hoping it may be of some assistance to partner by affording a successful finesse. It is claimed that it is better for a person, especially with a strong hand, to play with the knowledge that his partner is weak, than under the impression that he may be strong. Such an opening lead should warn the Third Hand to finesse deeply, to hold any tenaces he may have, and to let nothing pass him which might be too much for his weak partner to attend to. This is a very difficult game to play well, and is seldom resorted to except by the most expert.
Deschapelles Coups. It often happens that after the adverse trumps are exhausted, a player will find himself with the lead, but unable to give his partner a card of his established suit. In such cases the best course is to sacrifice the King or Queen of any suit of which he has not the Ace, in the hope that it may force the best of the suit, and leave partner with a card of re-entry. For instance: The leader has established the Club suit; his partner has exhausted the trumps, Hearts; and having no Clubs, leads the King of Spades from K x x x. If the holder of the Club suit has Spade Queen, and the King forces the Ace, the Club suit will be brought in. If he has not the Queen, the Clubs are probably hopeless. The coup risks a trick to gain several.
Players should be careful not to fall into this trap in the end-game; and it is generally right to hold up the Ace if the circumstances are at all suspicious.