What's the meanings of"3+8421hcp in C"?

[lycier]

[hv=sn=lycier&s=SA8HA4DA432CKQT76&wn=机器人&w=SQ62HJ8DKJ6C85432&nn=机器人&n=SJT4HKQT963DT8CA9&en=机器人&e=SK9753H752DQ975CJ&d=n&v=o&b=1&a=2H(Weak%20two%20bid%20--%206+%20H%3B%2010-%20HCP%3B%209+%20total%20points)P2N(Artificial%20force%20--%2015+%20HCP)P3C(Feature%20--%206+%20H%3B%208-10%20HCP%3B%203+%208421%20HCP%20in%20C%3B%209+%20total%20points)P3N(5-%20H%3B%205-%20S%3B%2015-22%20HCP%3B%20partial%20stop%20in%20C%3B%20partial%20stop%20in%20D%3B%20partial%20stop%20in%20S)PPP&p=C3C9CJCQHAH8H3H2H4HJHQH7HKH5S8C5CAS3C6C4HTS5D2D6H9S9D3S2H6D9D4S6D8D7DADJ]499|350[/hv]

 

Robot answered 3♣ to show "3+8421hcp in C",I don't know its exact meanings,who can tell me? thanks.

[GreenMan]

A = 8, K = 4, Q = 2, J = 1.

 

So 3+ means at least QJ in the suit.

 

As I understand it, this is how GIB "knows" to evaluate honor strength -- e.g. when cuebidding it doesn't think of Ace vs. no Ace in a suit, it thinks of 8+ (Ace) or 7- (no ace).

[Bbradley62]

However, you should be aware that GIB lies when he says that opening preempts show a certain number of 8421HCP in his suit.

[lycier]

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5♣,5♥,5♠,so much 8421.

[Bbradley62]

5♣,5♥,5♠,so much 8421.

That's completely reasonable for cuebids. Generally, 8+8421HCP means first-round control, and 7-8421HCP means not first-round control. The 5♥ bid denies first-round control in diamonds and shows first-round control in hearts.

[georgi]

Currently after opening 2X weak, 2NT asks for feature or somehow entry in hand outside trump.

 

other suit than opening shows such - QJ or better and also shows better hand.

 

Problem is if there is no entry and still good hand, like better trumps and some queen in doubletons.

 

So replying 3 in opening is little ambigious as currently GIB has no other way to show positive hand except with feature.

 

Replying 3NT shows only super solid suit headed by AKQ.

 

But with hand like ♠AKxxxx♥Qx♦xxx♣xx GIB will reply 3♠ which will be 7-HCP and 9+TP which of course seems incorrect.