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Why would 3D deny a 5 card spade suit? If partner has 3 spades he has a "GF 1 suiter" and if he does not have a GF hand he does not have 3 spades. I can't imagine what you are bidding with Kxxxx Qxx xx Jxx or something if it's not 3D. It seems like opener would have a 3S bid after 3D to show 3S and a GF 1 suiter in diamonds. While this seems like a good start to the auction, responder has no idea what to do. He could easily belong in 3N if his partner had a stiff club, but on this hand partner is a stiff heart. In your auction opener ended up driving past 3N himself. To me that is not good. I think 1D 1S 3C is a better start to the auction because partner will know he needs good hearts to bid 3N. We can play 3N after that start to the auction, the way your auction started things are just too cluttered to ever play 3N.
There are solutions to these problems but I think you are approaching it the wrong way. You are not utilizing the 2H bid at all in this auction which, since it's lower and is not a NT bid, is a more logical bid to utilize for artificial things than overloading your 2N bid.
You are also creating new problems by opening 1C with all 18-19 balanced hands.
agree
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How to avoid your fake jump shifts with a regular partner?
I think you are on the wrong track.
In theory if a bid is forcing the subsequent bid can/should be forcing since the 1st forcing bid can be used to show the subsequent non-forcing bids & that way you can get the most forcing bids possible & are able to show more hand type. In practice its a different story since you dont want to hog all the bidding space (partner need some space too) & sometimes 1 bid for all nf hand isnt enough. Also you dont want to give lead directing X for no reasons.
1 thing im sure is that
1D----1S
2H
to play 2H as true reverse is just plain bad. The cheapest reverse is a much too valuable bidding spot & in standard it is used less then 5% of the times. Also using 3S as INV is dubious. Why go down in 3S when you can play 2S ??
An easy & effective solution is to play that 2H is a weak S raise or a GF raise (maybe 3 cards) or a 18-19 bal (dont worry if partner bid 4S expecting you have 4
♠ 12-14) your extra strenght will allow you to bid again) and that 2S is a 15-17 raise. That way you will never play 3S for no reason. You need to find other way to show the H reverse (2Nt & 3S are free now)
Another solution is too allow more flex for the reverses (even into a 2 card fragment).
Of course if you reverse into 2H with AQx,KQ,Axxxxxx,x then partner shouldnt go to 4H at the 4 level without a D fit. Its easy to make intelligent continuations after a semi-natural reverse.
Those who want to avoid fake-jumps shift are simply overloading 2Nt instead of using the full potential of the cheaper reverses. Even Strong jump shift are better played as fragment then "true jump shift" IMHO.
As for opening a non-forcing 1C with (43)42 shapes is something i dont recommend especially red since the chance to passed-out is fairly high.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
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."