1. When you are the ombre, and your friend leads from a mat, play your
best trump, and then lead the next best the first opportunity.
2. If you possess all the trumps, keep leading them, except you have
other certain winning cards.
3. If all the mats should not be revealed by the time you have won six
tricks, do not risk playing for the vole.
4. When you are the friend called, and hold only a mat, lead it, but if
only a mat, guarded by a small trump, lead the small one; though when
the ombre is last player, lead the best trump you have.
5. Punto in red, or king of trumps in black, are good cards to lead when
they are your best, and should either of them succeed, then play a small
trump.
6. When the ombre leads to discover the friend, if you hold king, queen,
and knave, put on the knave.