[blackshoe]

1eyedjack, on 2015-January-18, 14:08, said:

The auction will still be at the 3 level when it comes back to you.

Sometimes. So what?

[campboy]

ArtK78, on 2015-January-16, 12:55, said:

I have never played Ace showing responses to 2♣ openings. This sounds like a holdover from the old Schenken strong club system, in which a 2♦ opening bid was STRONG and I believe that responses showed aces. This may be why you don't see anyone playing Schenken club anymore.

I once (5-10 years ago) encountered a pair playing this in conjunction with stolen-bid doubles: they opened 2♦, showing a hand too strong to open a strong club, I overcalled 2♠ and the next player doubled, alerted as showing the ace of spades. I'm not sure of the rest of the auction, but someone used Blackwood with a void (not in spades) and they ended up in a making slam

[Lovera]

This convenction is known as "CRODO"( where C=color, R=range, O=orphans ) and is used on 2♣ opening (3 losers or less). The scale is:2♦=0 Ace, 2♥, 2♠, 3♣, 3♦= color(=suit) with the Ace of.., 3♥=2 Aces with the same color (red or black), 3♠=2 Aces with the same range (major or minor), 3NT=2 Aces orphans= different for range and color (spade/diamond or heart/club) and at fuor level the lacking Ace when partner has three Aces. Consequently 4NT=? for Kings (5♣=0/4 Kings, 5♦=1 King, ..) and 5NT=? for Queens with the same scale on steps. The 2♣ Crodo is forcing until manche.(Lovera)

[mikestar13]

campboy, on 2015-January-19, 05:32, said:

I once (5-10 years ago) encountered a pair playing this in conjunction with stolen-bid doubles: they opened 2♦, showing a hand too strong to open a strong club, I overcalled 2♠ and the next player doubled, alerted as showing the ace of spades. I'm not sure of the rest of the auction, but someone used Blackwood with a void (not in spades) and they ended up in a making slam

They were only describing the ultra strong balanced hand alternative, which would indeed be too strong for 1♣. The unbalanced alternative showed a hand not "stronger" than 1♣ but with a sure game and no interest in partner's shape, but looking for specific honors for slam. A terrible convention because of rarity--the bid itself was a thing of beauty the once a year (i you play every day) that it happened. I have a copy of Better Bidding in 15 Minutes on my bookshelf. The 2♦ opener is not one of Schenken's ideas I've used.