MYXOMATOSIS TWO BIDS

This concept or conventional system of opening on the two level was developed by Mr. Bob Sebesfi, who also devised the Swine 1 No Trump Escape. The name itself is defined as a highly infectious, usually fatal disease of rabbits that is caused by a pox virus and is characterized by many skin tumors similar to myxomas. Although unsubstantiated, the designation is perhaps a reference to the slang term used by Australian bridge players to designate less experienced bridge players as "bunnies". Since the opening bids have different and multiple meanings, the less experienced bridge player had no "immunity" or "defense cure for the disease".

Although the significance attached to these opening bids are manifold in nature owing to the number of optional and attached features, they are allowable in many sponsored bridge organizations such as the European Bridge Union. An outline of the bids are given below. There are different versions to this concept, but it is the hope that the following represents to a large degree the original version. We have included two variations also, which are presented following what we hope is truer to the original version.

Opening Meaning
2 Option 1: Game forcing opening.
Option 2: Signifies a Weak 2 Diamonds opening with 5-10 high card points.
Option 3: Promises a 5-5 distribution in both Major suits with 5-10 high card points.
2 Option 1: Strong 2 Diamond opening with 21+ high card points or 4- losing tricks.
Option 2: Strong balanced holding with 21/22 high card points.
Option 3: Weak 2 Hearts opening with 5-10 high card points.
Option 4: Promises a 5-5 distribution in Spades and Clubs with 5-10 high card points.
2 Option 1: Strong 2 Hearts opening with 21+ high card points or 4- losing tricks.
Option 2: Weak 2 Spades opening with 5-10 high card points.
Option 3: Promises a 5-5 distribution in Diamonds and Clubs with 5-10 high card points.
2 Option 1: Strong 2 Spades opening with 21+ high card points or 4- losing tricks.
Option 2: Weak 3 preempt.
Option 3: Promises a 5-5 distribution in Diamonds and Hearts with 5-10 high card points.
2 NT Option 1: Promises a 5-5 distribution in Hearts and Clubs with 5-10 high card points.
Option 2: Promises a 5-5 distribution in Diamonds and Spades with 5-10 high card points.
3 Transfer preempt to Diamonds.
3 Transfer preempt to Hearts.
3 Transfer preempt to Spades.
3 Transfer to 3 No Trump; Gambling 3 NT
3 NT Minor suit preempt to the four level.
4 South African - Texas Transfer to Hearts.
4 South African - Texas Transfer to Spades.

The first responses, in order for the opener to define his holding more clearly and to ascertain which option is the correct option, are 2 No Trump by the responder over all opening bids on the two level, which is forcing for at least one round, and 3 for all bids over and above any opening of 2 No Trump, which is also forcing for one round.

A variation of the Myxomatosis Two Bids is attributed to Mr. Sean Bentley, and the variation carries with it the modification of all four Strong Two opening bids, including 2 . The holding should contain at least 8.5 tricks, but these openings are not deemed to be absolutely game forcing. They include holdings which contain 21 high card points plus. A schematic of these opening bids are given below.
Opening Meaning
2 Option 1: Promises 8.5 tricks in Clubs.
Option 2: Signifies a Weak 2 Diamonds opening with 5-10 high card points.
Option 3: Promises a 5-5 distribution in both Major suits with 5-10 high card points.
Option 4: Promises a balanced holding with 21-22 high card points.
Option 5: Promises a balanced holding with 29-30 high card points.
2 Option 1: Promises 8.5 tricks in Diamonds.
Option 2: Weak 2 Hearts opening with 5-10 high card points.
Option 3: Promises a 5-5 distribution in Spades and Clubs with 5-10 high card points.
Option 4: Promises a balanced holding with 23-24 high card points.
Option 5: Promises a balanced holding with 31-32 high card points.
2 Option 1: Promises 8.5 tricks in Hearts.
Option 2: Promises a 5-5 distribution in Diamonds and Clubs with 5-10 high card points.
Option 3: Promises a balanced holding with 25-26 high card points.
Option 4: Promises a balanced holding with 33+ high card points.
2 Option 1: Promises 8.5 tricks in Spades.
Option 2: Weak 3 preempt.
Option 3: Promises a 5-5 distribution in Diamonds and Hearts with 5-10 high card points.
Option 4: Promises a balanced holding with 27-28 high card points.
2 NT Option 1: Promises a 5-5 distribution in Hearts and Clubs with 5-10 high card points.
Option 2: Promises a 5-5 distribution in Diamonds and Spades with 5-10 high card points.

Subsequent bidding is based on partnership agreement to determine which option is the correct option. The opener must in some manner describe his holding.

Another variation on this concept of optional Weak Two bids is attributed to Mr. Paul Soloway, but this is not confirmed. The schematic belows describes the various option features of the opening bids.
Opening Meaning
2 Option 1: Forcing opening bid in Clubs.
Option 2: Promises a Weak Two opening in Diamonds.
Option 3: Promises 17+ high card points and a 4-4-1-4 distribution with Diamond shortness.
Option 4: Promises a balanced holding with 21-22 high card points.
Note: Over 2 , pass is permissible or bid 3 showing strong values; 2 NT shows the balanced hand, and 2 shows Diamond shortness.
2 Option 1: Forcing opening bid in Diamonds.
Option 2: Promises a Weak Two opening in Hearts.
Option 3: Promises 17+ high card points and a 4-1-4-4 distribution with Heart shortness.
Option 4: Promises a balanced holding with 23-24 high card points.
2 Option 1: Forcing opening bid in Hearts.
Option 2: Promises a Weak Two opening in Spades.
Option 3: Promises 17+ high card points and a 1-4-4-4 distribution with Spades shortness.
Option 4: Promises a balanced holding with 25-26 high card points.
2 Option 1: Forcing opening bid in Spades.
Option 2: Weak 3 preempt.
Option 3: Promises 17+ high card points and a 4-4-4-1 distribution with Club shortness.
Option 4: Promises a balanced holding with 27+ high card points.
2 NT Option 1: Promises a 5-5 distribution in both Minor suits with 5-9 high card points.
This option can be varied according to the preference of the partnership agreement.

The concept of beginning the bridge auction on the two level is not new, but the concept that the Two Bids as opening bids could signify different interpretations and contain various options to be explained via rebids became popular in some areas of the bridge community. The ensuing auction was mostly based on partnership agreement, which did not lack a certain logic if the opponents decided to remain silent.

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.
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