[foobar]

Assume that the intent was to ask if anyone has tried it? Try searching this forum for SCUM or SCRUM, and if ulven is around, he can provide more details as well.

FWIW, I really like the treatment and combining it with a 14-16 NT in 1st and 2nd makes a lot of sense.

One approach to make it more like a conventional system is the following:

1D: 11-13 bal OR 4M5m
1M: Unbalanced with 5+M, but occasionally 4441 (Spades is always 5+ unless 4=1=4=4)
2m: Natural with 5+; no 4CM
2M: Weak 2s

The advantage is that 1D - 1M - 2m auctions are super well defined now, and you know at least 9-cards in opener's hand. We might occasionally miss a 5-3 major fit, but it usually doesn't matter with the NT range.

[shugart24]

foobar, on 2024-June-09, 17:58, said:

Assume that the intent was to ask if anyone has tried it? Try searching this forum for SCUM or SCRUM, and if ulven is around, he can provide more details as well.

FWIW, I really like the treatment and combining it with a 14-16 NT in 1st and 2nd makes a lot of sense.

One approach to make it more like a conventional system is the following:

1D: 11-13 bal OR 4M5m
1M: Unbalanced with 5+M, but occasionally 4441 (Spades is always 5+ unless 4=1=4=4)
2m: Natural with 5+; no 4CM
2M: Weak 2s

The advantage is that 1D - 1M - 2m auctions are super well defined now, and you know at least 9-cards in opener's hand. We might occasionally miss a 5-3 major fit, but it usually doesn't matter with the NT range.

Yes...good mind reading on what my question was. Thank you

[PrecisionL]

System GEEKS (such as yours truly) try to differentiate balanced hands from unbalanced hands (those with a singleton or perhaps two doubletons) by treating 5332 hands as balanced even if a 5-cd Major. Thus, the question is where to put the 5M332 hands?

1) Into 1NT is a common solution, or
2) Into 1♣ or 1♦ is an exotic solution.

The Granovetters in their GUS System expanded their 1NT range to include 5M332 hands (12-16) in first or second seat. A 5 point range is the maximum allowed by ACBL rules:

12-14 with 5M332, Open 1NT and use 2♣ as puppet Stayman
14-16 with 5M332, jump to 3M over puppet Stayman. (Occasionally will get too high?)
With 14 hcp and NO 5-cd Suit, open 1♦.

In our canape system we have recently added the above design and will test it by using the bidding table on BBO. Experience to be reported back in a month or so.

Sorry, partner refuses to expand the 1NT range from 14-16.

So our main challenge is handling 10-13 hcp balanced openers. We include 5M332 hands in this range by opening 1M with 4 or 5-cds and rebidding 2♦ with 7+ loser hands over partner's 2♣ artificial GI.

[olien]

Ulf and I made some changes to the opening structure about a year ago and have been very happy with the new setup. The opening structure is:

1♣ = 15+ unbal / 18+ bal
1♦ = 11-14, BAL or 6+m. If 6+m then denies 4+M, and may be 5M332 in any seat, but required in 1st/2nd
1M = 11-14, 5+M or 4M-441. Unbal in 1st/2nd
1NT = 15-17
2C = 11-14, 5/4, 4/5, or 5/5+ minors (not 6/4 or 4/6)
2D = weak multi
2M = 11-14, 4*M-5+m
2NT = 20+-22

This structure has worked very well for us and I don't envision us changing it any time soon.

Owen

[PrecisionL]

olien, on 2024-June-25, 16:29, said:

Ulf and I made some changes to the opening structure about a year ago and have been very happy with the new setup. The opening structure is:1♣ = 15+ unbal / 18+ bal1♦ = 11-14, BAL or 6+m. If 6+m then denies 4+M, and may be 5M332 in any seat, but required in 1st/2nd1M = 11-14, 5+M or 4M-441. Unbal in 1st/2nd1NT = 15-172C = 11-14, 5/4, 4/5, or 5/5+ minors (not 6/4 or 4/6)2D = weak multi2M = 11-14, 4*M-5+m2NT = 20+-22This structure has worked very well for us and I don't envision us changing it any time soon.Owen

Thanks Owen, glad you two are still partners.

Are you playing pairs and teams, one more than the other? Curious.

By the way, our system design for 1♦ openings is 11-13 balanced or a canape into a 5-cd suit. The side benefit is that 1M reply to 1♦ shows a 5-cd Major.