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Bidding system Is our bidding method part of a recognized system

#1 User is offline   Meejawa 

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Posted 2020-May-17, 09:29

My partner is from Europe and said he played a system that opened 5 card majors and weak NT (12-15 hcp). I had played some ACOL as well as American Standard. We combined our methods and now open: 5+ card D, H and S (12-15 hcp), weak NT (12-15 hcp), weak 2's with strong 2C (22+ points). All hands with 16 - 21 points are opened with 1C before bidding NT or 5 card suit.

Is this part of a recognized bidding system. If so, where can we find more information on the system?
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#2 User is offline   glen 

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Posted 2020-May-17, 09:52

 Meejawa, on 2020-May-17, 09:29, said:

My partner is from Europe and said he played a system that opened 5 card majors and weak NT (12-15 hcp). I had played some ACOL as well as American Standard. We combined our methods and now open: 5+ card D, H and S (12-15 hcp), weak NT (12-15 hcp), weak 2's with strong 2C (22+ points). All hands with 16 - 21 points are opened with 1C before bidding NT or 5 card suit.

Is this part of a recognized bidding system. If so, where can we find more information on the system?

If you have 12-15 with 5+ clubs, what do you open?
'I hit my peak at seven' Taylor Swift
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#3 User is offline   hrothgar 

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Posted 2020-May-17, 11:48

It actually looks a bit like the Vienna system or Klinger's Power System

(With a weak NT grafted on)
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#4 User is offline   Meejawa 

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Posted 2020-May-20, 14:28

We bid 1♣ then rebid 2♣ with 12-16 point or 3♣ with 17-21 points.
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#5 User is offline   helene_t 

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Posted 2020-May-20, 22:13

5551 systems are quite common but usually with a strong artificial 2♣ opening and wide-ranging 1♦/♥/♠ openings, so that the 1♣ opening is balanced or clubs.

I know one pair who plays something like this, though. They don't have a great way of showing strong unbalanced hands with 5 clubs:
1♣-stuff
2♦

would show long diamonds, so with 4♦5♣ they would have to rebid 3♣.

They mostly avoid this problem by letting responder show points in steps. So opener can basically rebid 2♣ if he doesn't want to be in game and 3♣ if he does. So if you rebid 3♣ on a 5-card suit, at least it will always be forcing.
The world would be such a happy place, if only everyone played Acol :) --- TramTicket
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#6 User is offline   nullve 

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Posted 2020-May-21, 14:11

From Jan Eric Larsson's A Bridge System Collection:

Quote

Breakthrough* 1.78

This system was invented by Robert Sundby and played by
Katz-Cohen. Information from Henk Uijterwaal, Hamburg, Germany.

Breakthrough Opening Bids
1C 17-22 any shape
1D 12-22 4+ diamonds
1H 12-22 4+ hearts
1S 12-22 4+ spades
1N 14-16 balanced
2C 23+ any shape
2D 12-16 6+ clubs, 0-2 D, 0-3 H/S
2H 7-11 6 hearts
2S 7-11 6 spades
2N 21-22 balanced

Natural responses after 1C. 1D/H/S can be canape, and 1N is the only
forcing response.

Note the 2♦ opening.
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