אתה נמצא כאן: ראשי / סליידר / "הערכת יד" מאת גבי לוי (אנגלית) – כתבה ראשונה – 03.07.2011

"הערכת יד" מאת גבי לוי (אנגלית) – כתבה ראשונה – 03.07.2011

פורסם בתאריך 03/07/2011.

אנו שמחים לפרסם את הכתבה הראשונה (מתוך 5) בנושא "הערכת היד – כיצד לפתוח עם ידיים מאוזנות" (המקור: mrbridge).

הכתבה הראשונה עוסקת בנושא "כיצד לפתוח עם ידיים מאוזנות עם 12-14 נקודות ויותר".  מטרתך צריכה להיות לנסות ולתת לשותפך את המידע על הכוח של ידך ועל צורת היד ברגע שאתה יכול.

הכתבה הראשונה היא בשפת המקור=אנגלית. בהמשך אעלה את התרגום בעברית וכתבות נוספות.

לקריאת הכתבה לחצו כאן.

הכתבה המלאה:

Let us start with a definition: a balanced hand is a hand that holds no singleton or void and not more than one doubleton.

Whatever system you play, it is important to know how to bid your balanced hands. Your aim should be to try to let partner know your strength and shape as soon as you can. All systems have a range for their 1NT opening and then they show other strengths by rebidding in no-trumps at various levels. Ideally you should be able to show any strength of balanced hand at or below the 2NT level; this leaves room for a further exchange of information below game level, if necessary.

Below is a table for the weak no-trump opening in Acol:

* With a five-card major you should always consider opening in that suit.

There are two important aspects of the system to note, which I will deal with in detail later:

  1. A- 1NT rebid shows 15-17 points, allowing the 2NT jump-rebid to show 18-19.
  2. A- rebid of 2NT over a two-level suit response shows 15-19 points and should be game forcing.

Both of these aspects are introduced to conserve bidding space and give your partnership the best chance of finding the correct contract. You will note that opener will never need to rebid 3NT. In old-fashioned Acol, you would have rebid 3NT with 19 points, but this leaves no space for further discussion – and space is very important.

When there are a lot of points in one hand, no-trump contracts can be uncomfortable because of the lack of entries to the weak hand. Therefore, if you do have an eight-card major-suit fit, it is highly preferable to play in the suit rather than no-trumps, because the trumps will serve as entries and because any particularly weak suit can be trumped. Try to avoid big leaps to 3NT too early, as you will make it difficult for your partner not to pass even when he might have quite an unbalanced hand.

Using the scheme on the previous page means that whatever the strength of your balanced hand, you know how to bid it! The only exception is when you find a fit in a suit.

Here are two hands:

Hand A has 13 points and fits the definition of balanced, so you look it up on the scheme and bid accordingly – 1NT. The definition does not make any reference to the spread of your points, nor for the need of an honour in each suit. You must learn to ignore weaknesses such as that in the heart suit – the important message you are getting across to your partner is about your balanced shape and your point count.

With Hand B and its 17 points, you open one-of-a-suit and rebid in no-trumps at the lowest level. Since you are planning to bid only one suit, it makes sense to open in the major. So you start with 1 and, over your partner's 2 response (for example), you rebid 2NT.

Hand C and Hand D are both balanced, but they each contain a five-card major too. Had their point count fallen outside the range of the 1NT opening, the plan would be easy: open 1 and rebid in no-trumps. However, since they each contain 13 points, you need to decide whether to open 1 or 1NT. The key point is that if you do decide to open 1, then you will have to be prepared to rebid 2. The fact that you will have to bid spades twice, means that to do so you would like to have a strong suit, thus the rule would be: open one-of-a-major with 12-14 points and a balanced hand only when you hold a rebiddable five card suit.

And what does 'rebiddable suit' mean? A suit which you are happy to bid twice. It should have two of the three top honours, or three of the top five honours.

On the hands above I would open 1 with Hand C, but 1NT with Hand D.

One more thing to consider is that the weak 1NT opening is very pre-emptive and makes it difficult for the opponents to overcall.

A1 opening has a similar effect, in that it forces the opponents to overcall at the two level, but 1 is less obstructive. Hence opening 1NT with a five-card heart suit can work very well.

בברכה,
גבי לוי

מקור: B. Magge Mrbridge

תרגום ועריכה: גבי לוי

Editing and translation rights and more

© Copyright Gabi Levy-2011

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