Mini NT in 1M
#1
Posted 2015-October-14, 01:18
1C = Natural 11+ or strong NT, may have 5M332
1D = Natural 11+ unbal
1M = Natural 5+M 11+ or 8-11 (semi)bal with 4-5M
1NT = 12-14
2C+ = Your preference, probably 2C strong
I think the major opening could work fine in an uncontested auction, but it may be to difficult to handle when both sides bid. What's your opinion?
#2
Posted 2015-October-14, 03:21
The first constructive problem I see is that you are basically forcing opener to bid with any balanced 15 after 1M-1NT. The second, and perhaps more important, is what you do after a 2/1. Surely you don't want to bid 1♠-2♦-2NT on 8 points. So it looks like you are rebidding 2M with 8-11, potentially only 4 hearts. Now what does responder do with a minimum 2/1 and shortness in hearts?
In competition, the need to show 15 balanced is going to be really bad. 1♥-(2♠)-p-(p) and now you have 15 rather than 8, don't you kind of have to double? But double could be completely unsafe (advancer can find plenty of redoubles) AND it doesn't say anything about shape.
I'm not really convinced.
-- Bertrand Russell
#3
Posted 2015-October-14, 03:28
1♣: natural or 16+ bal
1♦: natural
1M: (10)11-12 (semi)bal with 4+ M, or 5+
1NT: 13-15
But yes, I agree things like this would be ok in uncontested auctions. In contested auction you win when they interfere over your pretty well-defined minor suit openings, but you lose when they interfere over you majors.
It would take some time to get used to dealing with interference over a 4-card major opening (if you are used to playing 5cM) and I am not sure if it is worthwhile since the major suit openings would be five cards most of the time. Playing English Acol at least you know that opener will mostly be 15+ if the major is a 4-card suit so generally you can react over interference as if you played 5-card majors.
#4
Posted 2015-October-14, 15:53
helene: The Swedish standard system uses a strong NT and four card majors, so I'm pretty used to this style. Sometimes you end up in a 4-3 fit in competition. Four card majors has a preemptive effect, so I do not quite get the idea of opening them if strong.
#5
Posted 2015-October-14, 18:03
Kungsgeten, on 2015-October-14, 01:18, said:
1C = Natural 11+ or strong NT, may have 5M332
1D = Natural 11+ unbal
1M = Natural 5+M 11+ or 8-11 (semi)bal with 4-5M
1NT = 12-14
2C+ = Your preference, probably 2C strong
I think the major opening could work fine in an uncontested auction, but it may be to difficult to handle when both sides bid. What's your opinion?
- 1♣ = ART. 16+
- 1♦ = ART. 8-15. Rule of 18+. 4+ ♣s or 4+ ♦s.
- 1♥ = NAT 8-15. Rule of 18+. 4+ ♥s.
- 1♠ = NAT 8-15. Rule of 18+. 4+ ♠s.
- 1N = BAL. 13-15
- 2♣ = NAT. 8-12. 4+ ♣s & 4+ ♦s.
- 2♦ = ART 5-9. 5-6 ♥s or 5-6 ♠s.
- 2♥ = NAT 8-12. Rule of 18. 4+ ♥s & longer or stronger m.
- 2♠ = NAT 8-12. Rule of 18. 4+ ♠s & longer or stronger m.
- 2N = ART. 5-9. 5+ ♥s & 5+ other.
#6
Posted 2015-October-14, 19:58
Similarly, in my canape system (MICS), 1M openings are 11 to 15 unbalanced, or 11 to 12 balanced, which is also very similar.
Both worked well. The bid works best if the non light options are always strong or unbalanced. Again, complicated as to why, but it is very effective.
So, the general feel of what you propose seems sound.
-P.J. Painter.
#7
Posted 2015-October-14, 20:03
-P.J. Painter.
#8
Posted 2015-October-15, 02:20
#9
Posted 2015-October-15, 03:43
1m = 3+ suit, normal strength
1M = 5+ suit, normal strength or 4+ suit semi-bal 8--11
1NT = 15-17
2C = Strong
2DHS = Weak
2NT = 20-21
1M--1NT is a "forcing NT" in 2/1 spirit: Could be up to a minimal GF, may be a limit raise of the major. Weak opener pass.
1M--2X could be GF, but that would require a lot of strength so perhaps GF vs normal opener is better. Having artifical 1M-2X is probably best.
1M--2M normal raise, only promises 3 cards.
1H--2S WJS?
1M--2NT GF raise vs normal hand, but can stop in 3M vs 8--11.
1M--3m invitational vs normal opening hand.
1M--3M limit raise vs 4 card support.
#10
Posted 2015-October-15, 09:42
#11
Posted 2015-October-15, 10:33
#12
Posted 2015-October-15, 11:30
Using this method you get much more room to relay, and can actually sort out the weird shapes if partner is strong.
And if you don't have a 4cM why not preempt the opponents by opening 1M+.
#13
Posted 2015-October-15, 12:46
1M = "8-10", 4-5 M, (semi)bal. / "10-21", 5+ M, unbal.
1M-?:
1♠ = 4+ S
1N = "5-14(15)", 3- M. Also 3- S if M=♥. To play opposite "8-10" (semi)bal.
(...)
2M = "4" M, PRE opposite "8-10" (semi)bal., F1 opposite unbal. hands (idea: Law protection)
2♠(M=♥) = WJS [not sure about the exact range, but < inv values]
3M = "5" M, PRE opposite "8-10" (semi)bal, GF opposite unbal. hands (idea: Law protection)
(...)
1♥-1♠; ?:
1N = "8-10" (semi)bal., 3- S
2♣ = "10-18", 6+ H or 4+S5+H ("10-12", 3S5H4+m possible?) / "16-18", 2-S5H4+D [2♣ is partly a two-under transfer to hearts]
...2♦ = relay, GF opposite "13+"
.......2♥ = "10-12", 3-S6+H
..........2N = GF relay
.......2♠ = "10-12", 4+S5+H (or 3S5H4+m?)
..........2N = GF relay (?)
.......2N = "13-15", 6+ H or 4+S5+H
..........3♣ = relay
.............3♦-3♠ = M2
.............3N = 4522
.............4m = 4+S5+H, SPL m
.............(...)
.......3♣ = "16-18", 2-S5H4+D
..........3♦ = relay
.............3♥+ = part of M1
.......3♦-3♠ = "16-18", M2
.......3N = "16-18", 4522
.......4m = "16-18", 4+S5+H, SPL m
.......(...)
...2♥ = to play opposite "10-15", 3-S6+H
......P = "10-15", 3-S6+H
......2♠ = "10-12", 4+S5+H (or 3S5H4+m?)
......2N = 16-18, 5H4D
......3♣ = "15-17", 6+H4+m / "16-18", 4+S5+H"
.........3♦ = GF relay
............3♥/♠ = part of M2
............3N = 4522
............4m = 4+S5+H, SPL m
.........3♥ = to play opposite 6H4m
......3♦ = 15-17, 5H5D
......3♥ = "16-18", 2-S6+H
......3♠ = "13-15", 4+ S
......(...)
2♦ = "10-12 or 19-21", 5H4+m / "16-18", 3S5H4+m [2♦ is Muiderberg-like]
...2♥ = to play opposite "10-12"
......2♠ = "16-18", 3S5H4+m
...2♠ = (5)6+ S, NF
...2N = GF relay
......3♣+ = M1
...3♣ = pref. opposite "10-12"
......(...)
......3♥ = "16-18", 3S5H4+C, NF
......3♠ = "16-18", 3S5H4+D, NF
2♥ = "13-15", 5H4+m [2♥ is Muiderberg-like]
...P = 2-3 H, < GF values
...2♠ = 5S1-H, scrambling [didn't respond 2♠(WJS) to 1♥]
......P = 2-3 S
...2N = GF relay
......3♣+ = M1
...3♣ = P/C, < 5 S
2♠ = "8-10" semibal., 4 S
...2N = GF relay
2N = 16-18, 2-S5H4C
...3♣/3♥ = to play
...3♦ = GF relay
......3♥+ = part of M1
3♣ = 15-17, 2-S5H5C
3♦-3♠ = "19-21", M2
3N = 19-21, 4522
4m = "19-21", 4+S5+H, SPL m
(...)
1♥-1N; ?:
P = "8-10" (semi)bal.
2♣ = "10-18", 6+ H / 16-18, 5H4+D or 4+S5+H [2♣ is partly a two-under transfer to hearts]
...2♦ = relay, GF opposite "13+"
.......2♥ = "10-12", 6+ H
..........2N = GF relay
.......2♠ = "16-18", 4+S5+H
..........2N = GF relay
.............3♣+ = M3
.......2N = "13-15", 6+ H
..........3♣ = relay
.............3♦-3♠ = M2
.............3N = 4S6H
.............4♣ = 4S7H
.............4♦ = 5S6H
.............(...)
.......3♣ = "16-18", 5H4+D
..........3♦ = relay
.............3♥+ = part of M1
.......3♦-3♠ = "16-18", M2
...2♥ = to play opposite "10-15", 6 H
......P = "10-15", 6+ H
......2♠ = "16-18", 4+S5+H
.........2N = GF relay
......2N = 16-18, 5H4D
......3♣ = "15-17", 6+H4+m
.........3♦ = GF relay
............3♥/♠ = part of M2
.........3♥ = to play opposite 6H4m
......3♦ = 15-17, 5H5D
......3♥+ = "16-18", 6+ H, one-suited
2♦ = "10-12", 4S5H / "10-12 or 19-21", 5H4+m [2♦ is Lucas-like]
...2♥ = to play opposite "10-12"
...2♠ = P/C opposite "10-12"
...2N = GF relay
......3♣+ = M1
2♥ = "13-15", 5H4+m or 4S5H [2♥ is Lucas-like]
...P = 2-3 H, < GF values
...2♠ = P/C
...2N = GF relay
......3♣+ = M1
2♠ = "19-21", 4+S5+H
...2N = GF relay
......3♣+ = M3
2N = 16-18, 5H4C
...3♣/H = to play
...3♦ = GF relay
......3♥+ = part of M1
3♣ = 15-17, 5H5C
3♦-3♠ = "19-21", M2
1♠-1N; ?:
P = "8-10" (semi)bal.
2♣ = 4+ H
...2♦ = relay, GF opposite "13+"
......2♥ = "10-12"
.........2N = GF relay
............3♣+ = M3
......2♠ = "13-15"
.........2N = GF relay
............3♣+ = M3
......2N+ = "16-18"
.........3♣ = relay
............3♦+ = part of M3
......3♣ = "16-21", 5413 (5404)
.........3♦ = range ask
............3♥ = "16-18"
............3♠ = "19-21"
......3♦+ = "19-21", part of M3
...(...)
2♦ = "10-18", 6+ S / 16-18, 5S4+D [2♦ is partly a two-under transfer to spades]
...2♥ = range ask, GF opposite "13+"
......2♠ = "10-12"
.........2N = GF relay
......2N = "13-15"
.........3♣ = relay
............3♦-3♠ = M2
......3♣ = 16-18, 5S4+D
.........3♦ = relay
............3♥+ = part of M1
......3♦-3♠ = 16-18", M2
...2♠ = to play opposite "10-15", 6 S
......P = "10-15"
......2N = 16-18, 5S4D
......3♣ = "15-17", 6+S4+m
.........3♦ = GF relay
............3♥/♠ = part of M2
.........3♠ = to play opposite 6S4m
......3♦ = 15-17, 5S5D
......3♥ = "16-18", 6S3H, one-suited
......3♠+ = "16-18", 6S2-H, one-suited
2♥ = "10-12 or 19-21", 5S4+m [2♥ is Muiderberg-like]
...2♠ = to play opposite "10-12"
...2N = GF relay
......3♣+ = M1
...3♣ = P/C opposite "10-12"
2♠ = "13-15", 5S4+m [2♠ is Muiderberg-like]
...P = 2-3 S, < GF values
...2N = GF relay
......3♣+ = M1
...3♣ = P/C
2N = 16-18, 5S4C
...3♣/S = to play
...3♦ = GF relay
......3♥+ = part of M1
3♣ = 15-17, 5S5C
3♦-3♠ = "19-21", M2
Modules:
M1:
1M-1N; 2[M-1]/M-2N; ?:
One idea is to play similar stuff whether 2M-1 is a Muiderberg- or Lucas-style rebid, so e.g.
3♣ = 4+ D
...3♦ = relay
......3♥ = 5M242 or 5M5D
.........3♠ = relay
............3N = 5M242, not 19-21 [haven't decided what to do with 19-21 yet]
............4♣+ = 5M5D. Relay structure?
......3♠ = 5M143 (0544)
......3N = 5M341, not 19-21
......4♣ = 5M341, 19-21
3♦(M=♥) = 4S5H
...3♥ = anti-SPL C / relay
......3♠ = 4513 (4504)
......3N = 4522
......4♣ = 4531
......4♦ = 4540
...3♠ = anti-SPL D
3♦(M=♠) = undefined!
3♥ = 5M224 or 5M5C
...3♠ = relay
......3N = 5M224
......4♣+ = 5M5C. Relay structure?
3♠ = 5M134 (5M044)
3N = 5M314, not 19-21
4♣ = 5M314, 19-21
M2:
1M-1♠/N; 2[M-2]-2[M-1]: 2N-3♣; ?: / 1M-1♠/N; 2[M-2]-2[M-1]: ?: / 1M-1♠/N; ?:
(...)
3♦ = one-suited
3♥ = 6+M4+C
3♠ = 6+M4+D
M3:
1♥-1N; 2♣-2♦; 2♠-2N; ?: / 1♥-1N; 2♠-2N; ?: / 1♠-1N; 2♣-2♦; 2♥/♠-2N; ?:
If M = opened major,
(...)
3♣ = 5M4OM13 (5M4OM04)
3♦ = 5M4OM31 (5M4OM40)
3M = 6+M4OM
3♥(M=♠) = 5+S5+H
3♠(M=♥) = 5S6+H
3N = 5M4OM22
(...)
----
Could something like this be playable, or is there a big flaw somewhere?
------------------
21 Oct: Hmm, the above doesn't look good even to me. I think i need to try:
1♥-1♠; ?:
1N = "8-10", (semi)bal., 2-3 S
2♣ = "10-12", 5+H4m / "10-18, 4+S5+H / "16-18", most (all?) shapes [Gazzilli-like]
2♦ = 6+ H [could be "10-15", as I know how to handle the "16-21" range by other means]
2♥ = "13-15", 5H4+m [Muiderberg-like]
2♠ = "8-10", (semi)bal, 4 S
2N+ = "19-21", relay structure
1♥-1N; ?:
P = "8-10", (semi)bal.
2♣ = "10-12", either 5+H4m or 4S5H / "16-18", most (all?) shapes [Gazzilli-like]
2♦ = 6+ H [could be "10-15", as I know how to handle the "16-21" range by other means]
2♥ = "13-15", either 5H4+m or 4S5H [Lucas-like]
2♠ = ?
2N+ = "19-21", relay structure
1♠-1N; ?:
P = "8-10", (semi)bal.
2♣ = "10-15", 4+ H / "16-18", most (all?) shapes [Gazzilli-like]
2♦ = "10-12", 5S4+m [Muiderberg-like]
2♥ = 6+ S [could be "10-15", as I know how to handle the "16-21" range by other means]
2♠ = "13-15", 5S4+m [Muiderberg-like]
2N+ = "19-21", relay structure
which in some ways is much closer to what I actually play in a 2/1 context.
This post has been edited by nullve: 2019-February-12, 12:36
#14
Posted 2015-October-19, 09:57
#15
Posted 2015-November-01, 15:49
Open 1NT with a 5M is a serious drawback that can be compensated if your 1M is always unbalanced. To add another balanced in S is just beurk for me.
We play 1NT 12-14 with 5M332 and its by far the weakest part of my system, but at least when we open 1M its never 5332 so we can relay easily.
Personally I think Kantar style is best for 15-17 1NT.
Rarely open 1NT with 5S.
Open 1NT mostly with 5H when its 16 pts. IE you are too strong to rebid 1NT but too weak to rebid 2NT.
1H-1S-1NT as 11-15 is annoying but not terrible especially if you play XYZ.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."