How is Norwegian whist played at grand?

In Norwegian whist, a no-trump partnership game, a hand played at grand has the objective of winning the majority of tricks.1

The rules for playing at grand are as follows:

• Bidding: Each player, starting with the eldest, has the opportunity to pass or bid grand or nullo. The first bid made determines the game; if all players pass, the game is automatically played as nullo.1
• Opening Lead: The player to the left of the bidder makes the opening lead.1
• Scoring: If the bidder’s side succeeds, they score four points per odd trick. If the partnership fails to win the majority of tricks, the opponents score eight points per odd trick.1

The game continues until a side reaches 50 points.1