2C 18+
#1
Posted 2014-August-11, 21:42
our system overview:
NT ladder:
15-17 bal: open 1NT
18-19 bal without 5M: open 1m and jump NT
18-19 bal with 5M: open 2C rebid 2M
20-21 bal: open 2C rebid 2NT
22-24 bal: open 2NT
1m: 11-19, 3+cards (18-19 must be bal)
1M: 11-17, 5+cards (responder can pass with ugly 6-7)
Opener reverse bid/jump bid shows max (16-17) but can be passed, and no Lebensohl/Ingberman convention
1M - 1NT - 2 lower: limit to 11-15 instead of the more common wilder range
2C: 18+
2C - 2D: 0-7
2C - others: 8+ natural
2C - 2D - 2H/2S/3C/3D: 18-21, 5+cards, can be passed
2C - 2D - opener jump with really big hands
#2
Posted 2014-August-11, 22:39
#3
Posted 2014-August-12, 16:42
Make sure you alert both your reverses and your 2C opening along with followups (but not the 2D response).
I think though, that if you go down this route, you should really look at (simplified) Precision systems. They accomplish much of the same simplicity with fewer of the downsides. The big minus are two:
1) All 12-14 balanced hands get opened 1D, so you lose the information about longer minor with those. (But 2C is natural, so actual club hands won't have trouble.)
2) Opponents will find it easier to come in over an artificial 1C than over a light-ish artificial 2C.
#4
Posted 2014-August-12, 17:29
#5
Posted 2014-August-12, 20:45
http://www.bridgebas...__1#entry774465
Finally got their book from Rome: IL SISTEMA by Bocchi-Duboin, 2010.
I have been playing this for 4 weeks now. No major boards to report yet.
C3: Copious Canape Club is still my favorite system. (Ultra upgraded, PM for notes)
Santa Fe Precision ♣ published 8/19. TOP3 published 11/20. Magic experiment (Science Modernized) with Lenzo. 2020: Jan Eric Larsson's Cottontail ♣. 2020. BFUN (Bridge For the UNbalanced) 2021: Weiss Simplified ♣ (Canape & Relay). 2022: Canary ♣ Modernized, 2023-4: KOK Canape.
#6
Posted 2014-August-13, 02:35
We play mainly match point, so we look for a system that works fine on the balance of probability, instead of a system that works perfectly in every scenario. Also, I may be a system geek but partner is a KISS style, partner can probably handle a few conventions but not a switch to precision.
Apparently we have two major issues that we need to tackle:
1) 22+ unbal vs 0-7: 2C-2D-jump is too high
2) 18-19 unbal with minor vs 0-5: 2C-2D-3m is too high
and we have 2 solutions to these:
for 1) have both 2C and 2D as strong bid, may study Bocchi-Duboin's style
for 2) open 1m with these hands
Issue 1 is rather low frequency (I guess 0.1% to 0.2%), we probably could just live with it.
Issue 2, I think open 1m with these will be fine, anyone could suggest the frequency of this?
#7
Posted 2014-August-13, 04:39
As glen points out, it would not be a bad idea to look at recruiting the 2♦ opening a la Benji (or reverse). But then this structure is generally seen as worse than 3 weaks or Dutch beyond low intermediate level.
For the record, if you are willing to put up with a natural 2♣ opening an easy structure is:
2NT = anything you like
2♣ = 11-14 5♣4M or 6+ clubs
1NT = 12-14 bal or 4414
1♦♥♠ = nat, up to 17
1♣ = 15+ nat/bal or 18+ any
... - 1♥+ = GF
... - 1♦ = non-GF hand
... - ... - 1♥ = 18-20 any or 23-24 bal
... - ... - 1♠ = any unbal GF or 18+ 3-suited
... - ... - 1NT = 15-17 bal or 4414
... - ... - 2♣ = 15-17 5♣4M or 6+ clubs
... - ... - 2♦ = Acol 2 in a minor
... - ... - 2M = Acol 2
... - ... - 2NT = 21-22
Obviously PC works too if you want to go for a strong NT set-up.
#8
Posted 2014-August-13, 05:46
Putting the 18-point hands, or at least some of them, with 5+ in a major, into the 2♣ opening makes a bit more sense but it is a dilema whether 2♣ followed by 2M is forcing or not. You might consider responses to 2♣ like this:
2♦: don't worry I am not going to pass below game.
2♥: If you have 18-20 with hearts then 2♥ is enough.
2♠: If you have 18-20 with spades then 2♠ is enough, but I do have enough heart support for game if that is your suit.
#9
Posted 2014-August-13, 10:19
As others have suggested a strong club system is probably easiest if you want to play limited 1x openings. If done well you can be extra-aggressive, e.g. regularly opening 10 counts with a major, to keep opponents out.
Edit: for this 2C=18+, helene's structure is pretty good too. Minors aren't worth worrying about a lot of the time since you're normally just going to play 3NT.
ahydra
#10
Posted 2014-August-14, 05:03
micsfyuen, on 2014-August-11, 21:42, said:
2C: 18+
2C - 2D: 0-7
2C - others: 8+ natural
2C - 2D - 2H/2S/3C/3D: 18-21, 5+cards, can be passed
2C - 2D - opener jump with really big hands
Just 1-2 remarks
As a response to 2C you have lots of bids, that deal with good hands, I recommend to
increase the bids, that deal with hands, that have no game interest vs. a min 2C opening bid,
in the end this goes in the direction of Helene's post.
The range 0-7 for the 2D response is to large, partner has an expected value of holding 6 2/3
HCPs, when you open 2C, and if he does, you want to be in game, so you should lower this range,
so that the opener can look for the safes part score vs. a neg. response, that will reduce the risk
of getting too high.
You already weakened your req. for 1 level openings, to 11, you can reduce this to 10, or brilliant
looking 9, that way, you will add. precision to your preempt openings, and get something back in return
for the problems you will have, if you hold strong hands.
The problem with a strong 2C opening is, that you have problems bidding good hands, those problems get
larger, if the frequency of the 2C opening goes up.
If you are willing to pay the price make sure, you get something in return.
In general: If it works for you, with regards to the tournaments you play, go for it.
With kind regards
Marlowe
Uwe Gebhardt (P_Marlowe)
#11
Posted 2014-August-16, 10:22
micsfyuen, on 2014-August-13, 02:35, said:
We play mainly match point, so we look for a system that works fine on the balance of probability, instead of a system that works perfectly in every scenario. Also, I may be a system geek but partner is a KISS style, partner can probably handle a few conventions but not a switch to precision.
Apparently we have two major issues that we need to tackle:
1) 22+ unbal vs 0-7: 2C-2D-jump is too high
2) 18-19 unbal with minor vs 0-5: 2C-2D-3m is too high
and we have 2 solutions to these:
for 1) have both 2C and 2D as strong bid, may study Bocchi-Duboin's style
for 2) open 1m with these hands
Issue 1 is rather low frequency (I guess 0.1% to 0.2%), we probably could just live with it.
Issue 2, I think open 1m with these will be fine, anyone could suggest the frequency of this?
(1) 22+ hands unbalanced is hard to calculate as many 19+ hands qualify. 22+ = 0.4%
(2) 18-19 balanced = 1.3%, thus unbalanced would be ~1.3% and majors or minors only = ~5% of those. (Ignoring 0-5 responding hands)
NOTE: 42 pages of notes on Bocchi 2♣ and 2♦ openings: www.bridgewithdan.com
C3: Copious Canape Club is still my favorite system. (Ultra upgraded, PM for notes)
Santa Fe Precision ♣ published 8/19. TOP3 published 11/20. Magic experiment (Science Modernized) with Lenzo. 2020: Jan Eric Larsson's Cottontail ♣. 2020. BFUN (Bridge For the UNbalanced) 2021: Weiss Simplified ♣ (Canape & Relay). 2022: Canary ♣ Modernized, 2023-4: KOK Canape.
#12
Posted 2014-August-17, 15:03
micsfyuen, on 2014-August-13, 02:35, said:
and we have 2 solutions to these:
for 1) have both 2C and 2D as strong bid
This is fairly popular here in England; search for "Benji Acol".
#13
Posted 2015-January-18, 03:37
#14
Posted 2015-January-18, 07:36
But it sounds like you really would prefer to be playing a strong club system.
#15
Posted 2015-January-18, 09:06
Vampyr, on 2015-January-18, 07:36, said:
But it sounds like you really would prefer to be playing a strong club system.
This rule (LTC x 5) is not mine but i have found it in a book of G. Barbone ("Il libro completo del bridge") as i have already said in another post. I have taken only the variation for longness that allows to use it more frequently (en passant i use Stayman system).