Cover an Honor?
West led a trump, and declarer won in hand and pulled the rest
of the trumps. Declarer then led the ♦ J
ducked all around. When declarer led the ♦ 4
from hand, it was necessary for West to fly the queen, to block the suit,
preventing South from from gaining entry to dummy to lead hearts.
If South had continued with the ♦ 10
, West would have
to duck, again to deny South a diamond entry.
In other words, the only way to keep South from gaining an entry
to dummy on this hand is to duck if South leads the ♦ J
or ♦ 10
, and fly the queen if South leads the