Another risky grand?

[Zelandakh]

Hi manudude03 i am in South RKB bidder and i have not the ♥ A ..

But it is your North that you want to make the decision and they do not know about the club void absent coughing, foot tapping or some related system.

[manudude03]

I only have 1 hand on the My Hands page where I answered partner, and then overwrote its decision.

 

[hv=http://www.bridgebase.com/tools/handviewer.html?bbo=y&myhand=M-29861723-1447884361]399|300[/hv]

 

The hand above was a much different situation though. From the previous bidding, I know partner must have at least Qxxxx in spades and Axxx in clubs for the 5NT bid. Those alone give reasonable play for 7C while 7S is considerably worse, and it should have more for the grand slam try. I probably should have just bid 7C over 5NT, but felt that the GIB might have been converted to 7S too often. Note that in the hand above, you need the diamond finesse playing in 7S, but not in clubs if they had broken 3-2 (diamond ruff is profitable playing in 7C). The surprise in the south hand here isn't some ace that I had already shown when I bid 5D, it was the KQ9x in its second suit which I hadn't shown.

 

In the OP hand, North doesn't have nearly enough information about the hand to make such a decision.

[Lovera]

Manudude03 and Zelandakh i agree with you :N infact think i have ♣ A whilest i have in club void that has complicated the identification of position and i not denyied it but i have forced in this way bidding to have information about diamond hopeing partner can get up to seven (why S don't bid 7? Lacking ♥ A?). Although 6♥+1 had to have an almost half-top, bye.

[manudude03]

Manudude03 and Zelandakh i agree with you :N infact think i have ♣ A whilest i have in club void that has complicated the identification of position and i not denyied it but i have forced in this way bidding to have information about diamond hopeing partner can get up to seven (why S don't bid 7? Lacking ♥ A?). Although 6♥+1 had to have an almost half-top, bye.

 

Because the ♦K was not what South wanted to hear and so south signed off (don't forget North can't see South's hand). Basically, unless some really rare situation occurs (this isn't one of them), a 4NT bid as RKC denies a void. So South would therefore know that North has ♥A and ♦AK and has still decided not to bid 7, so North shouldn't either.

[Lovera]

Perhaps 5♣ Exclusion by S as card lie can get informations about ♥ A and ♦ AK and knowing that this suit has no losers we can bid 7♥.

[Lovera]

There is another topic where you can find the situation i've told in my post #22 saying Generically speaking.... In that one bidding was 1♥-1♠, 3♥-3♠, 4♠ having partner in spade AQ probably 6th, stiff K in heart and AKxx in diamond. The bidding problem was to know in trump (=spade) presence of K. It being five different situations the answer to 5NT asking without K (or A if is the case) in trump agree by RKB bidder is six of trump whilest in the other positive case should be sured A+K in indicated suit of K but the case you have already an A (Aces aside indicated K).

[PhantomSac]

RKC with a void is underrated, but you need your partner to have denied the ace in your void via cuebidding.

 

Something like 1D 1S 1N 2D(art GF) 2H 3H 4D would be a great auction for south, he can keycard (his partner bypassed a club control), then ask for kings and opposite the DAK and HA and 4 hearts he can easily bid a grand.

[Lovera]

I usually leaves bidding as reported more possible so to retain conditions of problem inhaltered than i agree with p - 1♥, 3♥ - 3♠, 3NT and considering that N has not cuebidded in club is it probable not has Ace in suit. But, also i have told in my last post (with the occasion if anyone may indicate it - perhaps in topic title the are the words "rkb" "king" and "blackwood") my intendiment was and is to managed RKB with this situation and i think probably i have found as to solve.

[Lovera]

Although after 3♠ N has bidded 3NT meaning that all force(=range 14-18) is on the other suits or re-calling Jacoby(=unbalanced). If it so and in spade is shortness(=singleton) we can easily ruff two spade in dummy and for a grand needs A and K in diamond than after RKB with answer 5♥(=2 keys w/o Q) 5♠ query for a second round controll having informations for Aces dislocation and eventual collateral King position than 6♦ being positif answer sure A in trump and King in diamond more probably togheter at the second Ace ( lacking cue in club and for this aim 5♣ Exclusion can be considered also). In this way we can bid 7♥ with more safety.