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Hi folks ---
For the past couple of days, some research and email discussions happened about bridge bidding systems among a small handful of us. We are trying to approach a more systematic and cutting edge bidding system for further improvement. SAYC, 2/1 or Precision ? We are a bit confused. The systems we have been playing in our Chinese "club" are quite different, some mixed up with different modern conventions, partitally SAYC, partially 2/1 etc. At this moment, I have got four very good documents about SAYC and 2/1, which are:
1. SAYC part one, incl. SAYC bids, SAYC defensive and competitive bids as well basic conventional auctions.
2. SAYC part two, incl. almost all the modern conventional calls.
3. 2/1 System
4. 2/1 Summary
Especially the two about 2/1, very simple and clear. If any one more would like to explore the gadgets together with some of us for further improvement in bidding system, drop me a line or give me a buzz.
Also, please be warned that if modern 2/1 is chosen, all the basic conventional bids and pretty much the defensive and competitive auctions will remain, and the two docs about 2/1 could be exactly employed with SAYC Part two.
By the way, for your kind reference, I am attaching a very interesting article about modern 2/1 and SAYC.
SAYC AND 2/1 SYSTEMS
By Ellen (Caitlin)
Online today most people play one of two systems, SAYC (Standard American Yellow Card) or the 2/1 system. In this summary, my intent is to provide a brief historical background to these two systems, to identify the major differences between the two, and to offer my opinion on the pros and cons of each.
1. HISTORICAL FRAMEWORK
a) SAYC
This system was codified in the late 1980's by the American Contract Bridge League (ACBL). SAYC was intended for use with pickup partners and in special events with restrictions on the conventions that could be played. SAYC was based on traditional Standard American, but also included several modern conventions that would not be found in most home or rubber bridge games. However, more than ten years ago, the ACBL stopped supporting it.
So how did SAYC come to be integral to online bridge playing? Morris Jones of San Jose, California introduced it to OKbridge, and it quickly found a home as an alternate to the more complex 2/1 system. Consensus and flexibility played a large role as a group met to review the original SAYC card and provide optional conventions. SAYC is the system of choice for many novice players on the internet. It also is used as a pickup system by many from around the world.
b) The 2/1 System
The 2/1 system (pronounced "two over one") dates back to 1958 with Alvin Roth's "Al Roth on Bridge". By 1968, Roth and Tobias Stone wrote their first book on the Roth-Stone system. This system contained the two key treatments that distinguish 2/1 from traditional Standard American. These are the forcing notrump response to one of a major opening, and a 2/1response showing highly invitational or better values. The system also contained many other methods such as a form of negative doubles (called Sputnik by Roth), constructive raises to major suit openings, and sound openings of 14 HCP.
Innovations rapidly evolved. Richard Walsh introduced the Walsh System, also known as Western Roth-Stone or West Coast Scientific. Changes from Roth-Stone included 2/1 responses by an unpassed hand as 100% forcing to game, the use of inverted minor raises and
additional key conventions which remain popular today. Other 2/1 systems included Eastern Scientific, Washington Standard, and Bridge World Standard.
2. MAJOR DIFFERENCES BETWEEN SYSTEMS
a) Game Force:
When partner opens the auction and you as responder have an opening
hand, a game force is immediately established with a response in a
new suit at the two level.
Thus 1S by partner and you hold:
Ax KJxxx AKx xxx
Your 2H response is game forcing in 2/1. This same response
of 2H in SAYC tells partner you have 5+ hearts and 10+ HCP, and
therefore is forcing for one round.
b) Forcing Notrump Response:
In SAYC, a 1N response to 1 of a major opening bid shows about
6-9 HCP, and is non-forcing. In 2/1, this sequence
shows about 6-12 HCP and is forcing for one round by an unpassed
hand.
North holds: Axxxx KJx Qxx Kx
South holds: Kx xxxx Jxx QJxx
The SAYC auction is:
1S 1N
P
The 2/1 auction is:
1S 1N*
2D* 2S*
P
South's forcing 1N response is alerted as "forcing" with the 2/1 system. A more proactive alert message is "forcing, about 6-12 HCP". Opener makes her best rebid, which might be a 3-card minor if necessary. With two 3-card minors and no better rebid, opener rebids 2C. The worst case is a hand with 4S, 5H, and 2 in each minor, which might need to rebid 2C despite having only two cards in the suit. Opener's rebid in a minor should also be accompanied by a message to the opponents stating (for example) "3+ diamonds".
After North's 2D rebid, South prefers back to 2S, keeping the bidding open and playing in a known 5-2 fit. There is no chance to play 1N in this sequence.
North holds: AKxxx KJ Qxxx Qx
South holds: QJx xxxx KJxx AJ
The SAYC auction for the above hands:
1S 2D
3D 3S
4S
The SAYC sequence showed that opener had 5 spades and usually 4+ diamonds, while responder had 4+ diamonds, 3+ spades, and game invitational values.
2/1:
1S 1N*
2D* 3S
4S
The 2/1 sequence showed that opener had 5 spades and 3+ diamonds, while responder had 4+ diamonds, exactly 3 spades, and game invitational values.
3. OTHER DIFFERENCES BETWEEN SYSTEMS
A brief examination of standard convention cards for SAYC and 2/1 reveals many differences in conventions and treatments. Most of these differences are not fundamental to one system or the other, but result from SAYC being an intentionally restricted system.Some differences are not obvious from examining the convention cards.
a) Fast Arrival versus Slow Arrival:
Fast Arrival is the use of a jump to game to show a hand with sound but minimal values that is not highly interested in slam exploration. In contrast, Slow Arrival uses a game-forcing rebid
at a lower level to leave room for affordable slam exploration.
All bidding systems contain instances of Fast Arrival and Slow Arrival. Unlike SAYC, 2/1 can use Slow and Fast Arrival after all 2/1 responses.
Consider these two auctions, with no intervening bids:
1S 2C 1S 2C
2S 3S 2S 4S
In SAYC, the first auction is invitational to game. Responder is showing 3+ clubs and about 10-12 points in support of spades. The second auction shows game forcing values in support of spades in SAYC.
In typical 2/1, both auctions are game forcing. The 3S rebid shows some interest in a possible slam and encourages opener to co-operate in a slam try via cue bids. This is "Slow Arrival." The 4S rebid uses up a lot of bidding space. Therefore, the 4S bid shows a lack of interest in slam unless opener has a huge hand.
This is an example of "Fast Arrival."
Note that some 2/1 players use the 4S jump rebid specifically for a "picture bid" with a minimum game forcing hand that has no first or second round controls outside of the two suits named
by responder. This method allows opener to try for slam safely when responder's controls are known to be most useful. It also facilitates more careful exploration via Slow Arrival when responder's controls are scattered among the suits.
b) Sound Major Suit Opening Bids
Some authorities insist that 2/1 bidding systems work best with very sound opening bids in the major suits. Their reasoning is that marginal opening bids result in reaching too many thin games after 2/1 responses. If responder has doubts about opener's strength (especially when no fit is yet in sight), then more borderline game-forcing hands must be included in the forcing 1N response.
c) Miscellaneous differences
SAYC defines the sequences 1H-3H and 1S-3S as showing a limit raise with 3+ trumps. 2/1typically requires 4+ trumps for the limit raise.
SAYC states that 1C-2N and 1D-2N show 13-15 HCP, while 1C-3N and 1D-3N both show 16-17 HCP. In each case, of course, responder has a balanced hand with no 4-card major. In 2/1, the
point ranges are typically 11-12 and 13-15 respectively.
SAYC does not have a way for responder to show very poor values (0-3 HCP) after partner opens 2C and rebids a suit. In 2/1, responder often starts with 2D, then rebids the cheapest minor to show the double negative hand.
4. PROS AND CONS
a) Limited Use of SAYC
A major concern regarding SAYC is that it is rarely used outside of online bridge. Thus, players may go to a bridge club, tournament or congress only to find that they are in an extreme minority. Bobby Goldman has stated, "Virtually no tournament players actually plays SAYC (remember it was born by a a negotiated consensus and not from anybody's actual methods of playing)."
Does that take away from the validity of SAYC online? I think not. In general, SAYC provides players with a sound foundation from which they can adapt, adjust and importantly, understand the reasons why such bids are made.
A second criticism is that the conventions used with SAYC represent methods played in the late 1980's by people with an average of ten years of tournament experience. However, does this
take away the validity of teaching and playing transfers, Jacoby 2NT, Michaels, Unusual Notrump, Blackwood and the like? Again, I think not.
b) Diversity of 2/1 Systems
Exactly what version of 2/1 do you play? Which of the many conventions and variations are right for you and each of your partners? Choices frequently tossed out in response to "System please, partner?" include:
Roman Keycard Blackwood: 0314 or 1430
Reverse Drury: 2C only or both 2C and 2D, on or off over comp
Inverted Minor Raises: on or off over comp
System Over their 1N Opening: Cappelletti or DONT or ?
Bergen Raises of major suit opening bids
Carding: standard or UDCA (upside down count and attitude), various discard methods,
4th best or 3rd/5th versus suits
My point here is that experience has shown me that 2/1 players do not adhere to one 2/1 style or card, nor should they if it is not the version they play most regularly. Can you sit at any table, state you play 2/1or whatever system and know whether your partner bids hearts before spades with New Minor Forcing? Or whether this inverted minors sequence denies a spade stopper:
1D 2D
2H
Have you the intuition to know when partner will use a splinter bid versus a Jacoby 2NT raise? If you are playing help suit game tries, are they short suit game tries, long suit, side suits? As a fairly long time 2/1 player, I admit that I do not adhere to a "traditional" 2/1style, rather a Law of Total Tricks-based approach. Thus with each of my regular partners, a new card must be discussed with many details thrashed out. Such is the way, I would think, for most of us who play 2/1. However, I do feel more in the mainstream of North American bridge, not world-wide bridge, when I go to a sectional, regional or national tournament, being well acquainted with the various ways 2/1 can be played.
5. SUMMARY
For each convention we play, we may gain and we may lose. My 82-year young father will even go so far as to debate what he feels you "give up" when playing Stayman! With all systems, we must also be prepared to give up some natural bids, such as 1NT for the 2/1 players in exchange for other expected gains. One must find his/her level of comfort regarding systems. At the same time, given that bridge is indeed an international game, is it not best to be familiar with as many systems as possible to better understand what your opponents are up to?
Lastly, while SAYC has benefits as a more natural system than many, should we not equip our players with a system which they can utilize both on and off the net? To this end, I suggest that SAYC is a solid place to start. However, over time should we not consider encouraging those who get a good grasp of SAYC to move on to a system, such as 2/1, or whatever system reigns supreme in their part of the world and which is played both on and off line?
Post by taoliu
3月14日活动战况公布：第一场:
8对选手双人赛．最后：
ZhangXiDong - LiuTao 夺得冠军；
FMCheng - HZC111 获得亚军；
BillDing - YuGong 获得季军(经计算小分)．
第二场:
8对选手双人赛．最后：
He - Chu Couple 夺得冠军；
MTLBridge - YeYe 获得亚军；
FMCheng - HZC111 获得季军(经计算小分)．
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发表于 2004-3-5 13:13
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