double-dummy

This was right in practice, although wrong on a double-dummy basis.

Down four was possible with a double-dummy lead of a diamond.

Here is a double-dummy problem, which means that you may look at all 52 cards.

It is interesting to consider what the result should be double-dummy, with perfect play and defense.

This might seem double-dummy, but the inspired lead of the jack was made at the table exactly half a century ago.

The reader should consider whether five clubs can be made, even double-dummy.

This is true in practice, but Kay would have had a double-dummy way to survive.

He can, for example, read books and magazines, or solve double-dummy problems.

In a double-dummy game, the question would be: Can six spades make against any defense?

Finally, the answers to the double-dummy problem set earlier.

It is effectively a double-dummy position: South knows where all of the cards lie.

Four spades can always be made double-dummy but was extremely difficult at the table.

One is the double-dummy problem, which requires a solver to work for at least half an hour.

Two diamonds could have been made with double-dummy play.

In theory, East was right because double-dummy defense succeeds.

But that would have been double-dummy, requiring second sight or a periscope.

Double-dummy problems are older than bridge, dating back to the days of whist.

Commercially available double-dummy programs can solve bridge problems in which all four hands are known, typically within a second.

The deal is fascinating for double-dummy analysts, those who like to play knowing where all 52 cards lie.

Two decades later an analyst pointed out that double-dummy defense can give the defense 800.

Double-dummy analysts will no doubt note that South could have succeeded by leading the club queen at some point.

She therefore played for East to have 2-2-7-2 distribution, and after much thought found a way to succeed in that situation barring double-dummy defense.

Jones was now working on a double-dummy basis.

Enthusiastic analysts often consider this post-mortem question: Could it have been made double-dummy?

It makes double-dummy solutions a trivial task and has virtually destroyed this traditional activity.