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03-22-2006 20:01:23

Chapter 2

Point Count

Ginsberg's 717102 double dummy solutions can be used to determine and evaluate a point count system.  A scientific study with this objective is described in Appendix 1, Toward a Better Count.  Counts are determined to one-hundredth of a point.  I, as a bridge player, do not want to deal with more than one-point accuracy, and would like to avoid rules with many twists and turns.  For example, one study shows the value of a singleton depends on the number of trumps.  I want to use a single number here.  Also, I want a matchpoint game to be 25 points for 3NT, 4 , and 4 .

I use these counts: 

The count rules are followed by the count required for game, slam, and grand slam.  The game and slam counts are based on a combination of bridge arguments and the results of the analysis of Ginsberg's double-dummy deals The links and Appendix 1, which are two paths to the same information, report unmodified computer counts.

Notrump Count
  • Ace = four, king = three, queen = 2, jack = 1 with a
    • 1 point subtraction for a singleton king, a singleton queen, and a doubleton K-Q. 
  • Add 1 point for a useful five-card or longer suit. 

Chapter 2 Notrump Count Experimental Data

To subtract a point for a doubleton K-Q was a surprise.

One point for a useful long suit has bridge reasons.

Suit Count

Each hand has four different suit counts, based upon the value of the hand with each suit as trump.  The suit count is based on the 4321 count, with adjustments for weak honor combinations, trump length, and short suits.

Suit Count
  • High cards
    • Ace = 4, King = 3, Queen = 2, Jack = 1. 
    • Side singleton honors.  Ace = 3, King = 1, Queen = 0, Jack = 0. 
    • Side doubletons.  A 1-point deduction for K-Q, K-J, Q-J, Q-x, and J-x. 
  • Trump suit length. 
    • Take the trump length and subtract four.  Length -4.
    • The first hand to show five or more trumps adds 1 point. 
  • Short side suits. 
    • Void = 4. 
    • Singleton = 2.
    • Doubleton = 0. 
  • Adjust for the number of short side suits
    • None = -1.
    • Two = +1.
    • Three = +2.

Chapter 2 Suit Count Experimental Data

These agree with the computer game and slam numbers.  At suit there is less guessing of queens and jacks, and Blackwood eliminates some high-count non-slam deals.  A grand should not be based on suit count, but if I did, I would use 37.

An extra point for one player's fifth trump may seem illogical.  However, bidding is more accurate if you do.

One could save words in the suit count rules, but that would often add a step to the counting.  The most common case is exactly one short suit, and, if that is what you have, the number of short suits correction is zero.

It is an error to add your suit count to partner's notrump count.  Suit count is lower than the notrump count in many balanced-hand situations.

Suit Count Opposite a Short Suit

Partner's bidding shows a singleton or void in one or more suits.  Compute suit count as above, with the following adjustments in suits where shortness exists:

Count Opposite a Short Suit
  • In the short suit, count Ace = 3, King = 1, Queen = 0, Jack = 0. 
  • Add two points with three or more cards opposite the shortness, as there is some fit.
  • Reduce (short suit) count by one with a singleton or void opposite the shortness, as there is duplication of short values. 

Chapter 2 Suit Count Shorts Known Experimental Data

For example, Q-x-x or longer opposite a singleton is neutral and the net adjustment is zero.  The queen is now worthless, but significant length opposite shortness allows the hand to retain its value.  Honors opposite a short suit are assigned the same value as singleton honors.  Obviously a singleton king opposite a short suit is zero and not one.  The value of a singleton or void opposite a short suit is reduced by one.  Thus, facing singletons add three points to the partnership, rather than four.  I was surprised that both partner's get to count something for facing shorts suits (mirror distributions).  Doing so works better.

The largest shorts known hit occurs with A-K-Q-J opposite a singleton or void.  The hand value drops by six points.  If you have two trumps in this hand, the total hit is nine points.

The analysis for the shorts-known count showed a singleton ace is closer to three than four.  For consistency, a singleton ace is three in the "pure" suit count.

The slam and grand slam numbers have decreased.  You can be pushier in bidding slams when shorts are known.

Chapter 18 applies the shorts known count to specific hands.

An Application

This will show that the three count rules can be exercised on a simple looking hand.  This is problem B of the November 2000 Bridge World Master Solvers' Club.  3NT was awarded 100.

  Q 9 2
  K Q T 2
  A 5 4 3
  Q 2
 
1 1
2 2
3 ? 

Opener's hand (West) has gone through the following evolution.  When we heard 1 , we thought 12 at notrump and 12 at diamonds (for a Bridge World 1 opening.)  Now I think West has a 6-4-x-x pattern with less than three hearts, and most likely, one heart.  If you accept 6-4-2-1, then 11 high, + 3 for six diamonds, 0 for the doubleton, 2 for the singleton, and 1 for two short suits.  17 suit points at diamonds.  If you argue a 5-4-2-2 pattern is possible, as someone did, then West can be as low as 14 suit points at diamonds.  As a result, it is possible that the 28 points recommended for a minor game is not present, which makes 5 unattractive.

Conclusions

My observations from the data in Appendix 1. 

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