In the card game, the tractor is also called :upgrade, double rise. Compared with other single-player upgrade games, this game has high artificial intelligence, and the computer licensing, licensing, has a considerable level. Those who like CARDS must not miss it.

In the traditional two - deck game, the game also added anti - bottom mode, more exciting, more enjoyable.

Concise rules of the game:
Upgrade game is a popular domestic poker game, also known as the tractor, 80 points. There is a deck of CARDS and two sets of CARDS, this game USES two sets of CARDS, compared to a deck of CARDS to upgrade more interesting. In the game, 5, 10, and K are dealt CARDS, 5 for 5, 10 for 10, and K for 10, with 200 points in both hands. In the game, each side should try to catch the CARDS. If the bookmaker is docked by the other side, he should double count. At the beginning of the game, 25 CARDS are issued to each party, and the remaining 8 CARDS are the undercards. After turning over the master, the dealer takes the bottom card and replaces the eight CARDS that the dealer does not need as the new bottom card.