Polish Club

Polish Club (Polish: Wspólny Język, literally "Common Language") is a bridge bidding system which was developed in Poland, where it is the most popular bidding system, and which is also used by players of other countries. It is a type of small club system.

In the Polish Club, a 1♣ opening bid is forcing for one round but does not necessarily show a strong hand; in most versions of this system it shows either a weak balanced hand (about 12-14HCP), a natural 1♣ opening or any strong hand. Consequently, bids of 1♦, 1♥ and 1♠ are limited to about 18HCP, and also 1♦ shows at least four diamonds (five in some versions of the system).

The 2♣ opening is usually reserved to show a limited hand with long clubs and possibly a 4-card major, similar to the Precision 2♣ opening.

The following outline of the system is based on that given in System licytacyjny Wspólny Język 2005 - opis skrócony ("Polish Club 2005 - a brief description") by Krzysztof Jassem. The latest version translated into English (Polish Club International, 2010), is available here:

7+HCP, 4+ cards, can have longer minor if less than GF

9–11 HCP, no 4-card major

5+ cards, GF, can have 4-card major

Strong jump shift (semi-solid suit)

12+ HCP, GF no 4-card major

Good 6-card suit, invitational (9–11 HCP)

7-card suit with 2 high honours, nothing outside

4+ cards, 12–17 HCP possible canape: 4 diamonds; 5 clubs are possible if weak (12–14 HCP)

5 cards, 12–17 HCP

Responder’s 2NT is forcing after the suit is repeated. 1♥ 1♠/1NT 2♥ 2NT = forces to 3 of a major; opener shows shortage, and 1♠ 1NT 2♠ 2NT = forces to 3 of a major; opener shows shortage Two-over-one response – forces to three of that suit.

Rebidding the suit by Opener shows a minimum and does not show length. 2NT rebid by Opener shows strength (15–17 HCP).

Two types of Splinter bids 1♥ - 3♠ = any shortage, 9–12 HCP (then 3NT asks shortage) 1♠ - 3NT = any shortage, 9–12 HCP (then 4♣ asks shortage) 1♥ - 3NT = spade shortage, 12–16 HCP 1♥/1♠ - 4♣, 4♦, 4♥ (after 1♠) = bid shortage, 12–16 HCP Drury-fit by a passed hand 2 of the bid major is the weakest rebid. Jump shift by a passed hand – invitational (9–11 HCP)

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