DOUBLING
With any kind of fair strength the novice at Bridge is invariably anxious to double; but a few experiences with an adversary glad to embrace the opportunity to redouble, will turn the course of his anxiety to a desire to conceal such strength as he may hold.
Ordinarily be satisfied to win at all on the opponent’s make. By doubling you not only place the strength and thus enable the dealer to finesse successfully, but your double is a warning to the dealer to be cautious in leading trumps, and therefore, lessens your chances of winning tricks.
To increase safely the value of the tricks it is essential that you consider the state of the score, the possibility of a redouble, and your position in regard to the maker.
The score is a most important factor, and even, at times, justifies a double with only a fair hand. For instance, suppose the odd trick wins the game for your adversaries, and does not win it for you; if you double and secure the odd trick, the additional count may enable you to win the game on that deal or the next.
It is bad play to double when you need only an odd trick to win the game. If you double you lessen your chance of winning the trick, and by opening the way to a redouble perhaps give the adversaries the game.
Doubling on the rubber game is dangerous. The increased value of the tricks may enable your adversaries to win the rubber on that hand, when, otherwise, you might go out on the next deal.
Your position in regard to the maker claims equal consideration. If the trump has been made at your right, you play after the strong hand, and are, therefore, in a good position to make your high trump cards; but, if you double when this arrangement is reversed, and the maker is over you, the dealer has this advantage.
As spades are made for safety, occasions for doubling the spade declaration obviously arise more frequently than any other; yet players are prone to go to extremes in doubling spade hands, for, while it does not require much strength to double a defensive spade declaration, there is always a possibility of great trump strength in the adversaries’ hands.
Do not double the make of hearts, diamonds, or clubs without some strength in the trump suit; as high cards, particularly if the suits are long, may be trumped, strength in the side suits alone is unreliable. Spades, however, may be doubled with but little strength in the trump suit.