Cover 3
This will indicate if this host is using the Cover 3 option .
It will either be Yes or No.
With the cover 3 option on then you will need to take 3 tricks before the 3 will be worth zero points.
1 trick with the 3 of Spades equals -3 points
2 tricks with the 3 of Spades equals -3 points
3 tricks with the 3 of Spades equals 0 points