BridgeHands

Double Counting - A misevaluation when a player counts  wasted values.  A common error is to count shortage points when partner has counted length points.  Another trap is to double count one's own hand.
 

	10 9 8 7 5 Q 10 8 K J 4 A K
J 6 2 A K A 10 3 2 J 10 9 8	Deal: North	4 3 9 4 2 Q 9 8 7 6 5 4 3
	A K Q J 7 6 5 3 5 Q 7 6 2

North  East  South  West 
   1S     (P)    4S ?

Is South's Diamond singleton worth shortage points with three top trumps?  To do so would be double-counting South's Spade honors for ruffing.  Notice how West has three quick tricks, plus the SJ if North ruffs one of South's Diamonds in dummy.