The general rules given for the heart makes may be applied to the diamond declaration.
CLUBS
An original club should be made only when the score is 18 or more, and the hand strong enough, with slight assistance, to win the game. As there are three declarations of greater value than either clubs or spades, unless there is a reasonable chance to win the game, black makes should not be considered. Your partner may be able to make a red or a “no-trump” declaration, and, failing these, his defensive black declaration may suit your hand. There are unpleasant occasions when you hold a strong club hand and your partner declares spades. When the make has been doubled and you have little strength to support it, you are very apt to regret that you did not make an original club. While this may be true of an occasional hand, don’t forget the many times your partner can give you a heart or a “no-trump” make which will enable you to win the game.
If, however, you hold a black hand when you are a game to the good, with 8 points or more on the second game, particularly if the hand contains four club honours, it may not be advisable to pass the declaration. The honour score together with the probable trick value of the hand will win more points than the average hand is worth, whereas you could not support your partner’s red declaration.
SPADES
Spades should never be declared offensively, unless to win the game at a score of 24 or more points. With a very weak hand some players advise a defensive spade make with the hope of preventing a disastrous passed make. Statistics, no doubt, prove the correctness of this theory, still but few of the better players attempt a defensive spade declaration unless the score justifies their so doing. If you are a game to the good and perhaps well along on the second game, with a hand too poor to support an average “no-trump” or red make, it might be wise not to risk the advantage already gained. Should the adversaries win the game on your deal, it would give them the first deal on the rubber game.
At a love score, however, no player should deprive his partner of the privilege of declaring the trump to win. Many times a passed “no-trump” or red make is strong enough with slight assistance to win the game.
PASSED MAKES
The success of an original “no-trump” make is often due to the fact that the adversaries do not discover the dealer’s weak suit; a passed “no-trumper,” however, is exposed, and has the additional disadvantage of the dealer’s acknowledged weakness. The dealer shows by passing that he has not a strong hand; neither has he much strength in the red suits; while this latter inference may be doubtful, for the dealer often passes with fair strength in diamonds and occasionally in both red suits, still the fact remains that a passed “no-trump” make that is weak in the red suits, is extremely risky.
It is remarkable how many passed “no-trumpers” go astray, and the number proves the necessity for more cautious passed makes. The dummy hand, in declaring the trump, should keep in mind the general rules suggested for the dealer, and be governed in his choice by the state of the score, by the general strength of his hand, and by the dealer’s acknowledged weakness.