Exercise No5 - Answer

©9 taken back. The possession of it is UI for West. L50D.

• TD should ask west: 'You know you are instructed not to play hearts?' The answer is 'yes' and play continues. Nothing more.
• The same. At the end the TD has to decide whether west did use the UI that east has the ©9. The answer is an obvious yes, so west should be penalized. Concerning South request for a ruling. The play of the ©Q is obvious as well, there is no other way to defeat the contract