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Penality – the unit of
measuring doubles |
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Chaos and primitivism
reign in the area of doubling. The meanings of doubles are defined in far too
simplistic manner compared with the variety of situations we face in the bridge
life. Thus, we loose many opportunities to penalize opponents or to facilitate
our own bidding by means of doubling. Moreover, it frequently happens that a
double is completely differently understood by both partners even when the
situation seems perfectly clear:
„International Popular Bridge Monthly” August 1986
Problem 5 |
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(a) What would you bid now ? (b) You are playing with a strange partner – would
you have alerted the double ? Landy: Pass. The
double is for penalty. Hamilton: 2©. The
double is for take out. Soloway: Pass. Partner
is weak in Diamonds. Zia: 2©. North
cannot have a hand to double for penalty. Forrester: I do not alert. How can I alert with no idea
what partner has. Codge: I alert since I cannot lose whereas not alerting may
often prove to be costly. |
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The lack of unanimity among such eminent experts is
striking !
The simplistic
proposition that a double is either for penalty (forcing to pass) or for take
out (forcing to bid) and nothing in between, is too rigid, absurd, simplistic and
puerile. Bridge is just too subtle a game for such a proposition to be tenable,
as most players will admit and as justifiably proven below.
Like any other bid a double is a
proposition which may be accepted or not by responder depending on
circumstances. What is therefore required is a general theory and system of natural
doubles which can be understood by all players and applied with reasoable confidence
like hand valuation. The system will be called SAND, which stands for:
STANDARD ALGORITHM of NATURAL
DOUBLING
SAND is a system
intended to cater for all types of doubles, natural and conventional. It makes
it always obvious with what type of hand the double was made and with what hand
and when to accept or take out a double.
The fundamental character of any given bid
can be defined as the suggestions it contains as to further course of the
auction. Extending this to doubles, we easily arrive to the conclusion
that: The
most important attribute of a double is its
„PENALITY”
ie the power with which the double
expresses doubler's will to play the contract doubled, or – in other
words – his readiness to penalize the opponents, or – in other
words – doubler’s degree of inclination to penalize.
The word
“Penality” seems best fitting and means ‘the ability to
penalize’ as against ‘penalty’ which has a much more static
property. The idea was to use one single word; ‘Penalty Range’
would also fit the bill but was rejected for that reason.
How is the
penality measured ?
As penality increases it becomes much more
profitable to penalize the opponents and accept the double, and as it
decreases the opposite applies, with cases in betweeen. depending on hands.
For convenience we shall measure penality by a percentage, as shown in the
table below:
Penality |
Suggestions to partner |
Colloquial
description of the double |
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100 |
% |
Pass ! (ie accept the double) |
Penalty |
75 |
% |
Rather pass ! |
Semi–penalty,
penalty–oriented |
50 |
% |
Choose !
(at your choice) |
Optional
(competitive? cooperative?) |
25 |
% |
Rather bid ! |
Semi–takeout,
takeout–oriented |
0 |
% |
Bid !
(ie takeout the double) |
Take out |
Penality < 0% or >
100% may occur !
What
does the doubler have ?
Knowing the penality of the
partner’s double allows us to picture his actual hand pretty well:
„Tell me the penality and
I will be able to tell with what kind of hand you doubled. All the better too,
the greater my experience and knowledge.” (a certain minimum is
assumed)
The relationship between the penality of a
double and the kind of hand the doubler has is, approximately, as follows:
· |
The greater the
penality, the greater the length/strength in the doubled suit – and the
smaller the length/strength in other suits (and, especially, in our suits). |
· |
For average
penality (50%) those values (length/strength) are average. |
· |
The hand should
contain some surplus values, making it feasible to take some action. |
· |
Shortage of distributional
defensive values can be made up by possession of surplus honor strength. |
What
does the penality of a hand mean ?
The notion is
analogous to the penality of the double, and may be defined as below:
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The
penality of your hand = P if... |
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holding this hand in a given doubling situation you would like the double to have the penality = P |
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Consider this sequence: |
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The penality of South hand may vary: |
–25% |
0% |
25% |
50% |
75% |
100% |
125% |
150% |
KQJxx – Kxx Axxxx |
Qxxx x KJxx Axxx |
Axxx Qx Kxxx Axx |
Qxx KJxx Axx xxx |
Qxx KJxxx Axx xx |
Qxx KJ9xxx Ax xx |
Jxx KJ9xxxx Ax x |
xxx KQ98xxx Axx – |
Obviously, with any of those
holdings – with the penality P – South would be satisfied most if
by prior agreement with partner (or common sense) his double in that sequence
had the penality equaling P. Ufortunately, for obvious reasons this is not
possible.
How to
handle the doubles ?
The notion of
penality (of a double and of a hand) enable us to formulate very clear rules:
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Double if... |
the penality of your hand = penality of the double |
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One should assess
the value of the hand in respect of “penality”.
If the penality of your hand is TOO SMALL
(remember that negative values, even minus 50%, are possible), the opponents
may fulfil the doubled contract.
If the penality of
your hand is TOO GREAT, you will be (usually) in big trouble when – quite
likely – your partner removes the double. It may turn out that the
contract declared by our side would not be any adequate compensation for the
opponents' loss in their undoubled contract, and even more, no contract could
be made by our side (the greater the penality of your hand, the smaller the
chance of making any contract).
The experiences with SAND have shown
that with 50% excess of penality a pass is in order, not worrying about the
result (this is also true when the penality of the hand is 150%, while the
penality of the double is only 100 %).
Partner‘s action in response to the
suggestions largely depends on the type of hand he possesses. It would be
impossible to make a sensible decision by acting automatically in response to
the doubler’s suggestions as is often foolishly recommended; cooperation
is required to deal with doubles satisfactorily:
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Accept
the double if... |
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distributional penality of your hand
+ penality of the double ≥
100% |
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Why only „distributional
penality” ?
Well, you can do nothing about the lack of
honor strength („accident at work”). Accepting the double may lead
to the contract made, while takeout may cause even worse disaster. Therefore,
it pays better to pass (the distribution is favorable) hoping for partner's
additional (hidden) defensive values and... excellent defence.
Deviations
from required penality:
Bidding is a statistical process –
each decision is uncertain by its very nature and even those statistically
optimal are uncertain (due to imperfectness of algorithms and human mind).
Thus, the calculation of penality of the hand is also uncertain.
Too small penality of the hand can be
compensated by surplus honor values, since it reduces the threat of the
opponents’ making of the doubled contract (at worst, the size of the
penalty will be too small – which will cause the loss but not a
disaster).
Too great penality of the hand can also be
compensated by surplus honor values ! – since if partner removes the
double we have enough in reserve to correct the contract.
Those recommendation are in line with the
general directive: The greatest the deviation from
the hand expected by partner, the greatest surplus honor values we should have.
What
should the penalities of doubles be ?
Obviously, it’s useless to adopt agreements like
„All are positive” (100%) or “All (up to a certain level) are negative” (0%), and agreeing on something
like “In this sequence the double has the penality from 0 to 50%”
would be even worse. Appointing exact penality to each double would be best,
and any deviations and doubts concerning the penality of actual hand should be
left to a player.
The penality of a double depends on the auction so far
...
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