プレフェランス：Leningrad — ルール

Leningrad

The most common club variant. It differs from the basics by doubled scoring and a shared end of the pool.

Double scoring. Whists for tricks, mountain, consolation, misère and raspasy are written double; the pool is not.
Gentleman's whist. When one whists and the declarer goes down, whists for the defence's tricks are split equally between the whister and the passer; each writes their own consolation.
Half-responsible whist. The whisters' shortfall costs the game price in the mountain per missing trick, written once rather than doubled: with doubled scoring that is half the price (Preferans Code, art. 3.8.12).
Raspasy. The talon is open: the first two tricks are opened by a talon card whose suit everyone must follow. With three players the talon card never wins; with four it is the dealer's card and can win a trick for them. The first hand leads the third trick. Each trick is 2 in the mountain, progression 2-4-6; zero tricks — the same into the pool (nothing for the dealer). Everyone's tricks are reduced by the lowest count (amnesty, the dealer included). Exit with a six.
End of the pool. The game ends when the pools of all players sum to the pool length × number of players. No help: above the length is a plus, below is a minus; in the result a pool point is worth 20 whists.