[NaeosPsy]

Thank you for your support.
I can give up on 8-9 balanced and make the opening higher, you have some really good arguments against that.

[straube]

NaeosPsy, on 2012-February-25, 15:19, said:

Thank you for your support.
I can give up on 8-9 balanced and make the opening higher, you have some really good arguments against that.

You're welcome. Good luck with your designing.

[glen]

For op's design, the closest system I did but with natural bids was:

bash.pdf

From the introduction:

Quote

The BASH System reflects on the landmark 1977 Bridge book “You Ought to Bid an Average Hand featuring the Kamikaze Notrump” by John Kierein, though with BASH the Kamikaze is not used (in large part because 9 point 1NT openings are effectively not permitted in the ACBL - the restriction is one cannot play conventions over a 1NT opening with less than 10 points) ... One preeminent tactic is to keep BASHing by constantly opening the bidding to deny the opponents their well-practiced constructive methods in non-competitive auctions.

[mattias]

gwnn, on 2012-February-25, 13:54, said:

all this swedish talk made me curious. where can I find a decent write-up on Swedish Club?

Check out Swan and Zebra at Dan's system page.

[NaeosPsy]

Any ideas for a response scheme after 1C-1D, where 1D is 0-7 or 13+HCP and 1C is 11-13HCP, balanced or 16+?

[glen]

NaeosPsy, on 2012-February-26, 04:08, said:

Any ideas for a response scheme after 1C-1D, where 1D is 0-7 or 13+HCP and 1C is 11-13HCP, balanced or 16+?

The closest I did to that was:

sob.pdf

The system featured a two-way 1♣ and a negative or positive 1♣-1♦. However I was trying to make it more bulletproof by one end of each of the two-way bids as a specific hand type. A common example sequence to think about would start, with the opponents bidding, 1♣-Pass-1♦-3♣-?. Now consider what pass means here. If it just shows 11-13 balanced, then 16+ has to double or bid, and can find itself facing 0-7 without a fit. If pass is 11-13 bal and some 16+ but limited hand types (e.g. 16-18s not shapely), is 1♣-Pass-1♦-3♣-Pass-Pass-Pass the only option with 0-7, and if 13+ bids, is the partnership in a game force even if just 13 opposite 11 flat? There's some intriguing design to work on.

[relknes]

NaeosPsy, on 2012-February-26, 04:08, said:

Any ideas for a response scheme after 1C-1D, where 1D is 0-7 or 13+HCP and 1C is 11-13HCP, balanced or 16+?

here is one idea:
1♥ = 3+, 11-13 balanced or 16-18 points 4+
1♠ = 3+, 11-13 balanced or 16-18 points 4+
1N = 19-20 balanced
2m = 16+ points, 4+ (5+ if 16-18)
2M = 19+ points, 5+
2N = 23-24 balanced
3x = 3 or fewer losers, 5+

After 1♣-1♦-1♥:

Pass = 0-4 points, 4+ hearts
1♠ = 0-7 points, 4+
1N = 13+ points, GF
2m = 0-7 points, 4+
2♥ = 5-7 points, 4+

After 1♣-1♦-1♠:

Pass = 0-4 points, 3+ spades
1N = 13+ points, GF
2♣ = 0-7 points, 4+
2♦ = 0-7 points, 4+
2♥ = 0-7 points, 5+
2♠ = 5-7 points, 4+

[NaeosPsy]

glen, on 2012-February-26, 07:16, said:

The closest I did to that was:

sob.pdf

The system featured a two-way 1♣ and a negative or positive 1♣-1♦. However I was trying to make it more bulletproof by one end of each of the two-way bids as a specific hand type. A common example sequence to think about would start, with the opponents bidding, 1♣-Pass-1♦-3♣-?. Now consider what pass means here. If it just shows 11-13 balanced, then 16+ has to double or bid, and can find itself facing 0-7 without a fit. If pass is 11-13 bal and some 16+ but limited hand types (e.g. 16-18s not shapely), is 1♣-Pass-1♦-3♣-Pass-Pass-Pass the only option with 0-7, and if 13+ bids, is the partnership in a game force even if just 13 opposite 11 flat? There's some intriguing design to work on.

Well, I thought about opening positive 1♦ with 14 when flat, because then 1D opener knows, that he has GF all the time with 1C opener. Then he can always overcall or double to show that he has 13/14+ with GF. If 1C opener has 16+ points and he passed, he can now try to explore slam. That way, the only contract we can miss if oppoents do a high overcall is when weak 1D responder has enough points for a game with 1C opener, and well, that's the problem with precision too.


My version -
1♣-1♦
1♥ – 11-13 HCP
1♠ – 20+ HCP,
1NT – 17-19 HCP; balanced, system on
2 any suit - 16 - 19 HCP, 5+


1♣-1♦-1♥
1♠ – GF, auto 1NT, responder bids he's suit.
1NT – Stayman
2♣♦♥♠ - transfer to the next suit, 5+ in that suit, 6+ for clubs.

1♣-1♦-1♠
1NT – 0-4HCP
2 any suit – 5-7HCP or 13+HCP, GF

[cirenaj]

relknes, on 2012-February-25, 00:13, said:

To be fair, it isn't totally unheard of. The "Tangerine Club" uses the same 1♣ opener. Not saying it's good, just that it is not quite as crazy as we have made it seem.

The current European mixed silver pair, Anna Zack Einarsson and Bengt-Erik Efraimsson, are playing a Swedish club system with a 8-10 or 16+ 1♣ opening. 1♦/♥/♠ are 10-15 4+ and 2♦/♥/♠ are 5-10 5+. They mention the system and its aggressiveness as one reason for their success.

Jan Eric Larsson

[Cthulhu D]

cirenaj, on 2012-March-12, 06:36, said:

The current European mixed silver pair, Anna Zack Einarsson and Bengt-Erik Efraimsson, are playing a Swedish club system with a 8-10 or 16+ 1♣ opening. 1♦/♥/♠ are 10-15 4+ and 2♦/♥/♠ are 5-10 5+. They mention the system and its aggressiveness as one reason for their success.

Jan Eric Larsson

Do you know what their 1NT range is?

[NaeosPsy]

cirenaj, on 2012-March-12, 06:36, said:

The current European mixed silver pair, Anna Zack Einarsson and Bengt-Erik Efraimsson, are playing a Swedish club system with a 8-10 or 16+ 1♣ opening. 1♦/♥/♠ are 10-15 4+ and 2♦/♥/♠ are 5-10 5+. They mention the system and its aggressiveness as one reason for their success.

Jan Eric Larsson

Details would be nice.

[Cthulhu D]

NaeosPsy, on 2012-March-12, 18:19, said:

Details would be nice.

I've googled a lot, it appears that Bengt-Erik Efraimsson plays with different partners in high profile teams events so no CCs. Anyone seen one?

[Flameous]

1♣ = 10-12bal/17+ - 1♦ = 0-7/14+
->
1♥/♠ = 3+, weak NT or 4+ 17-22 unbal
1NT = 17-19 bal
2♣ = Big 2♣ as in natural systems
2x = 6+ suit, 17-19
2NT = 20-21
3x = 6+ suit, 20+

This was a simple version me and friend agreed before we ventured to play one tournament. 1M bids are bid overloaded since they are canape or natural without 6+ and still include the weak balanced range. Of course you stick a lot of minor hands into 1NT so it's not as bad as it seems.

[gwnn]

do you open 1♦ with all 2245/2254 hands?

[cirenaj]

Efraimsson and Zack Einarsson plays as follows:

1♣ 8-9 or 16+
1♦/♥/♠ 10-15 4+ suit
1N 11-16
2♣ 10-16 5+ suit
2♦/♥/♠ 5-10 5+ suit
2N 5-10 55+ in ♦ and another suit

After 1♣, the responses are:
1♦ 0-7, weak opener must pass
1♥ 8+ 4+ suit, weak opener may bid 1♠, 1N or 2♥
1♠ 8+ artificial and forcing, weak opener bids 1N
1N 8+ exactly 4 spades
2♣/♦/♥/♠ 5-10 5+ suit

This structure is obviously good enough that they could place second in the 2011 European mixed championships.

Jan Eric Larsson

[gwnn]

Does anyone know if transfer responses work to a swedish 1♣?

[WellSpyder]

gwnn, on 2012-March-13, 04:28, said:

Does anyone know if transfer responses work to a swedish 1♣?

I think they can work well. I use something similar, though not all are strictly transfers. 1♣ = 11-13 bal or 16+. Responses are:

1♦ = negative (0-7, or 8-11 bal)
1♥ = 8+ points, 5+ SPADES
1♠ = 8+ points, 5+ HEARTS
1NT = 8+ points, 5+ CLUBS
2♣ = 8+ points, 5+ DIAMONDS

(Other responses are 2♦= 14+ bal, 2♥/♠=c4-7 points, 6-card suit, 2N = 12-3 bal - INVITATIONAL!)

Over the transfer-type responses, opener simply completes the transfer with the weak hand (or jump-completes with a good fit). Other bids confirm 16+ (we use Precision-style asking bids).

[Cthulhu D]

cirenaj, on 2012-March-13, 03:57, said:

1♦ 0-7, weak opener must pass

Wow, that is very aggressive. I guess if you know for sure that you have at most a 17 count, playing anything un-doubled rates to be a decent score. Except maybe if you are both maximum with short diamonds where going several off will be a disaster.

Not sure I like the NT range, but obviously works for them. The same structure works for a 10-12 or 16+ 1C with a 13-15 no trump I guess.

[NaeosPsy]

A question.
1♣(11-13 bal or 16 + unbal or 17+ any)-1♦(0-7 or 13+)-1♥(11-13 bal)


1♠ (to 1NT) 2♦(to 2S) 2♥ (to 3C) - transfers, weak
1NT - transfer to diamonds
2♣ - Stayman
2♠ 3♣ 3♦ 3♥ - 5+, 13+HCP

Or just give transfers with weak and strong hands and then continue bidding with strong hand?

[mgoetze]

NaeosPsy, on 2012-April-04, 11:04, said:

A question.
1♣(11-13 bal or 16 + unbal or 17+ any)-1♦(0-7 or 13+)-1♥(11-13 bal)

No, I don't like it.