Dealer West E/W Vul.
 6 4 A Q 10 8 7 Q J 9 3 A K |
||
| A K Q 8 3 K 9 6 4 3 A 5 9 |
J 9 7 5 2 J 5 6 8 6 5 3 2 |
|
| 10 2 K 10 8 7 4 2 Q J 10 7 4 |
The Auction:
| West | North | East | South |
| 1 |
Double | 4 |
5 |
| End |
West led his singleton club, which dummy’s king won. South read the lead as a singleton. Should a trump be led, West would win and underlead his A K Q and East would gain entry with his knave and give his partner a ruff, thus setting the contract.
South therefore played dummy’s A followed by the Q on which, when East could not cover, he threw his singleton spade.
After this the contract cannot be defeated for as West has the A East cannot obtain the lead in order to give the ruff. This entry killing play of throwing a loser on a loser can be very profitable at times. Its aim is, of course, to keep out of the lead one opponent whose lead value rank higher that that of his partner.