This is a variation of the Polish Club bidding system and was devised by Mr. Greg Matula of Warsaw, Poland. The opening of 1 Club could describe one of four different shapes and distributions, which would be clarified in the ensuing auction. The illustration below of his publication from the year 1994, ISBN-10: 91-87416-15-8 contains additional information. This publication was reviewed by The Bridge World in the August issue, page 28, of the year 1994.

Note: In the year 1963, a series of bridge articles appeared in the Polish bridge magazine Brydz with the outline of a national bidding system, based on a nebulous 1 Club opening bid. It was called the Polish Club. Polish bridge players and readers of these articles enjoyed them to the extent that they put the ideas of the concept into practice at the bridge table.

Note: These particular bridge articles continued until the year 1966 with the addition of new information, new modifications, and adjustments for particular bidding sequences. The result was a defined and refined Polish Club bidding system. Mr. Greg Matula, a leading and expert bridge player, was a key component in compiling and complementing these articles and the modifications, and who finally produced in the year 1994 a publication called The Polish Club, which presented in its entirety the foundation for the entire concept and the accompanying explanations.

Note: Any additional information, especially photographs, as to the bridge personality of Mr. Greg Matula would be greatly appreciated.

This bidding system also includes a strong 1 No Trump opening, whereas the 2 No Trump opening describes a two-suited opening in both Minor suits. Weak Two openings describe distributional holdings, one of which is the suit mentioned.

These opening bids are shown in the schematic below. Source.

Opening Bids Only

Bid		Strength		Meaning
1 :		12(+)-15(-) high card points		Shows a No Trump balanced shape. Denies 4 Diamonds; denies 5 Hearts; denies 5 Spades, or
		12-18 high card points		Distribution is 4-4-4-and 1 Diamond, or
		15(+)-18 high card points		Promises a 6-card plus Club suit or a 5-card Club suit and an unspecified 4-card Major suit, or
		19 plus high card points		Shows any holding, or
				shows a holding with 8 plus tricks with 3.5+ honor tricks.
1 :		12(+)-18 high card points		Promises a 4-card plus Diamond suit. May have a 4-card Diamond suit and a 5-card Club suit.
1 :		12(+)-18 high card points		Promises a 5-card plus Heart suit.
1 :		12(+)-18 high card points		Promises a 5-card plus Spade suit.
1 NT:		15(+)-18 high card points		Shows balanced shape. (Note: relay bids can find a 5-card Heart suit, but not a 5-card Spade suit. Judgment is recommended.)
2 :		11-15(-) high card points		Promises either a 6-card plus Club suit, or
				promises a 5-card Club suit with an unspecified 4-card Major suit.
2 :		7-11 high card points		Promises any 5-5 distribution except Clubs and Diamonds. (Note: the range may be weaker at favorable vulnerability.)
2 :		7-11 high card points		Promises a 6-card plus Heart suit.
2 :		7-11 high card points		Promises a 6-card plus Spade suit.
2NT:		7-11 high card points		Shows a distribution of 5-5 in both Minor suits.
3 :				Preempt in Clubs per partnership agreement.
3 :				Preempt in Diamonds per partnership agreement.
3 :				Preempt in Hearts per partnership agreement.
3 :				Preempt in Spades per partnership agreement.
3 NT:				Gambling 3 No Trump showing a long Minor suit. (Note: 3/4 seat to make.)

If you wish to include this feature, or any other feature, of the game of bridge in your partnership agreement, then please make certain that the concept is understood by both partners. Be aware whether or not the feature is alertable or not and whether an announcement should or must be made. Check with the governing body and/or the bridge district and/or the bridge unit prior to the game to establish the guidelines applied. Please include the particular feature on your convention card in order that your opponents are also aware of this feature during the bidding process, since this information must be made known to them according to the Laws of Duplicate Contract Bridge. We do not always include the procedure regarding Alerts and/or Announcements, since these regulations are changed and revised during time by the governing body. It is our intention only to present the information as concisely and as accurately as possible.