Get to the grand (scientifically)
#1
Posted 2012-July-19, 05:38
#2
Posted 2012-July-19, 05:46
North deals:
2♣ (20+ unbal or 22+ bal or 1.5 trick short of game)
- 2♠! (3 controls)
3♣ (5+ clubs)
- 4♣ (agree clubs)
4♦ (cuebid)
- 5♣ (no more to cue)
5♦ (insist, grand interest)
- 5♠ (spade second round)
7♣ (spade K can discard heart loser)
It is so easy, isn't it?
#3
Posted 2012-July-19, 05:54
P
... - 1♣ = 15+ nat/bal or 18+ any
1♥ = 4+ spades, if bal or 3-suited then not 4 hearts
... - 1♠ = relay
1NT = 4+ hearts
... - 2♣ = relay
2♦ = bal or 3-suited
... - 2♥ = relay
2♠ = no void
... - 2NT = relay
3♣ = 4423
... - 3♦ = relay
3NT = 3 controls
... - 4♣ = relay
4♥ = spade control, no heart control
... - 4♠ = relay
5♣ = club control, no diamond control
... - 5♦ = relay
5♠ = 2 of top 3 in spades, no ♥Q
... - 7♣
or the simple:-
P
... - 1♣ = 15+ nat/bal or 18+ any
1♥ = 4+ spades, if bal or 3-suited then not 4 hearts
... - 1♠ = relay
1NT = 4+ hearts
... - 2♣ = relay
2♦ = bal or 3-suited
... - 2♥ = relay
2♠ = no void
... - 2NT = relay
3♣ = 4423
... - 4♦ = RKCB for clubs
4♥ = 1 key card
... - 4NT = king ask
5NT = ♠K and an extra, no red king
... - 7♣
look fine.
#4
Posted 2012-July-19, 06:09
mikl_plkcc, on 2012-July-19, 05:46, said:
North deals:
2♣ (20+ unbal or 22+ bal or 1.5 trick short of game)
- 2♠! (3 controls)
3♣ (5+ clubs)
- 4♣ (agree clubs)
4♦ (cuebid)
- 5♣ (no more to cue)
5♦ (insist, grand interest)
- 5♠ (spade second round)
7♣ (spade K can discard heart loser)
It is so easy, isn't it?
#5
Posted 2012-July-19, 06:21
2C (lots of things, amongst which is a GF or nearly with clubs) - 2D (positive)
3S (6♣4other) - 4C (♣ are trumps, minorwood)
4D (1 or 4) - 4H (ask Q)
5D (♣Q + ♦K) - ???
Well now, South knows grand is fine if North's second suit is diamonds or spades, but not so much with hearts. So he needs to find out about hearts. I think I'd go 5H (third round control ask) and if I get the positive reply (as here), hope that either the suit isn't hearts or North has the HK, neither of which are too unlikely.
It would take a better-than-average player to foresee this problem and use some other bid over 3S, which would have to be 4S. I assume North now bids 4NT keycard and bids the grand when he finds out about the SK. Bonus points for finding out about the third-round ♦ control in South as well.
ahydra
#6
Posted 2012-July-19, 08:07
P-1♣ (4+♣ 10-22)
1♥-2N(GF unbalanced 5+♣)
3♣(semi forced)-3♦(5+♣,4+♦, huge hand, not 2-2 in the others)
3♠(stop ?)-3N
4♣(extras, better than direct 4/5♣)-4♦(KC)
4♠(1/4)-5♦(all keycards and Q♣ held, K♦)
5♠(K♠ not K♥)-5N(still interested in grand, anything else ?)
6♠(Q♠ not Q♦, 6N should make if you don't like this)-?
Well partner either has KQx, xxxx, xxx, Axx or KQxx, xxxx, xx, Axx. If the former I'm on a heart finesse, the latter on the diamond ruff standing up. He might have J♠ in the second case, and/or J♣ which also improves things as does ♦Jxx which gives you the chance of Q dropping before having to take the heart finesse.
I think I'd probably bid 7, but it's close.
#7
Posted 2012-July-19, 09:49
broze, on 2012-July-19, 05:38, said:
Assuming NV then South's hand is an opener for me, the system is a version of Precision.
1NT (10-12) --- 3C (16+, alpha ask in ♣)
3S (at least ♣ QXX, 0-3 controls, agrees ♣ --- 4D Beta (how many controls?)
5C 3 controls --- 5D(Epsilon ask in ♦)
5S Third round control --- 7C (got to be worth a shot at this point)
#8
Posted 2012-July-19, 10:19
ahydra
#9
Posted 2012-July-19, 14:44
ahydra, on 2012-July-19, 10:19, said:
ahydra
I presume these are an extension of the old style precision italian asking bids, alpha asking about partner's holding in your suit, beta asking about controls, gamma asking about partner's own suit where appropriate.
#10
Posted 2012-July-19, 15:31
2nt=3c
3nt=4d(rkc in c)
4s(1-4)=5d(grand try, specific k ask, deny KH)
5s(ks, deny Kh)=6d(kd)
6s(qs)=7c
I would open the south hand nv with ten hcp and 4s.
#11
Posted 2012-July-19, 17:02
Cyberyeti, on 2012-July-19, 14:44, said:
Correct (I did say the system was Precision). The bids are based on Jannersten's writeup, he went some way past alpha, beta and gamma.
#12
Posted 2012-July-19, 21:50
Antrax, on 2012-July-19, 06:09, said:
North deals:
2♣ (20+ unbal or 22+ bal or 1.5 trick short of game)
- 2♠! (3 controls)
3♣ (5+ clubs)
- 4♣ (agree clubs)
4♦ (cuebid)
- 5♣ (no more to cue)
5♥ (insist, grand interest, heart first round since it hasn't been skipped yet)
- 5♠ (spade second round since it is skipped earlier)
7♣ (spade K can discard diamond loser)
It is so easy, isn't it?
#13
Posted 2012-July-19, 23:16
#14
Posted 2012-July-20, 02:52
mikl_plkcc, on 2012-July-19, 21:50, said:
2♣ (20+ unbal or 22+ bal or 1.5 trick short of game)
- 2♠! (3 controls)
3♣ (5+ clubs)
- 4♣ (agree clubs)
4♦ (cuebid)
- 5♣ (no more to cue)
5♥ (insist, grand interest, heart first round since it hasn't been skipped yet)
- 5♠ (spade second round since it is skipped earlier)
7♣ (spade K can discard diamond loser)
It is so easy, isn't it?
As Antrax says, so easy to bid a bad grand, you need to distinguish KQx, xx, xxxx, Axx/KQxx, xx, xxx, Axx (which is on the heart finesse) from the first with ♣AJx (where you need a 3-2 diamond break) from KQx, xxx, xxx, AJx (which again is on the heart hook) and from KQx, xxx, Jxx, Axx (which is on Q♦ dropping or the heart finesse) from the actual hand where it's excellent.
Have you made a misprint in your auction ? shouldn't K♠ be shown over 4♦ so 5♠ shows Q, otherwise you're bidding the no play grand opposite Kxx, xxxx, xxx, AJx, in case you didn't notice, you have 2 diamond losers.
At least my auction by starting 1♣-1♥ eliminates some of these and you're down to 4423 or 3433.
#15
Posted 2012-July-20, 03:31
1NT - 2♠ (10-13 / MSS)
3♣ - 4♦ (Better ♣ / RKC)
4♠ - 5♦ (1 / All keys, grand try)
5♠ - 5NT (♠K / still looking for something)
6♣ - 6♦ (I don't think I have it / ?)
First, would you bid 6♦ there, knowing partner has ♠K, ♣A and another 3 points without ♥K?
Second, how would you interpret 6♦? Is it still looking for ♦K or is 3rd round control enough? I guess partner should bid 6♦ over 5NT with ♦K.
If vul:
P - 2♣
2♦ - 3♣ (Waiting / nat)
4♦ - 4♠ (RKC / 4)
4NT - 5♦ (Q ask / Y and ♦K)
5NT - 6♥ (Anything extra, looking for 7NT at this point / ♥Q)
7♣ (That won't cut it...)
#16
Posted 2012-July-23, 04:30
pass-1♣ (strong)
1NT-asking bids
responses-asking
3♦(4423)-4♣ (keycard in clubs)
4♦(one)-4♠(♥K?)
4NT(no)-5♦(♠K?)
5NT(♠KQ, no ♠J)-6♦(♦K?)
6♥(no)-6♠(♦Q?) to play 7NT
6NT(no)-7♣
#17
Posted 2012-July-25, 03:01
Cyberyeti, on 2012-July-20, 02:52, said:
At least my auction by starting 1♣-1♥ eliminates some of these and you're down to 4423 or 3433.
Doesn't 4♠ show a FIRST round control in ♠?!
#19
Posted 2012-July-26, 00:35
1♣(1) 1♦(2)
1♠(3) 2♠(4)
3♣(5) 4♦(6)
4♥(7) 4♠(8)
4NT(9) 5♣(10)
5♠(11) 7♣
1. Forcing (denies 4 spades unless 6-5 or 21+HCP)
2. 4+ hearts, 0+HCP
3. 18-19 balanced, or wrong-way-round reverse in ♦ and ♣, or any 21+HCP with clubs, not balanced, DENIES 3-card heart support unless 21+
4. Transfer to 2NT - forcing to game (invite would have bid 2♣, weak would have bid 1NT/2♦(invite to 4♥ opposite the 18-19 bal)/2♥(absolute sign-off))
5. 21+ with 6+ clubs and not 3-card heart support(18-19 or ♦&♣ would have just accepted the transfer)
6. Blackwood
7. 1 or 4
8. Do you have queen
9. Yes - either with no interesting cards worth asking for, or more than one
10. What do you have in diamonds (game is an asking bid, not to play, when 3 or more keycards have been shown)
11. K, 3 or more cards (can show king doubleton on a different step)
Now responder can count 13 tricks - 6 clubs, 3 spades, 1 heart, 2 diamonds and 1 diamond ruff. Not even needed if pard has seven clubs, or the jack of spades, or the king of hearts (he did say after all he had more than one card worth asking about - he has a decent chance of having the king of hearts)
Edit:
Ah, I did not notice that South was dealer. In that case:
1NT(1) 2♦(2)
2♥(3) 3♣(4)
3♠(5) 4♦(6)
4♥(7) 4NT(8)
5♦(9) 5♠(10)
6♠(11) 7♣
1. 10-12 bal
2. Game-force stayman or balanced with 5-card major or slam-try in a minor
3. Answering stayman
4. Slam try or better in clubs
5. Accepting, showing some values in spades
6. Keycard
7. 1 or 4 keycards
8. What do you have in diamonds
9. Doubleton or queen
10. What do you have in spades (no point asking in hearts - opener has denied anything of use by skipping 3♥ - will be able to stop in 6♣ if he has the queen and no king)
11. KQ
Now can count 13 tricks - 6 clubs, 1 heart, 3 diamonds (either AKQ or AK and ruff), and 3 spades. Worst case scenario is ♠KQ doubleton and no ♦Q and only 3-card support, but then he probably has the jack of clubs if he is going to call it a 1NT opening let alone a slam try acceptance (meaning you can ruff 2 diamonds high if you want, after drawing 1 round to make sure they are at least 3-1)
#20
Posted 2015-February-28, 04:34