aawk, on 2016-October-13, 09:34, said:
Trying to counter the wrong-siding problem you have to give up a lot as well and you need a lot of extra conventions. Not a problem if you are a expert but a lot of ballast for 90 % of players.
Actually not. If you would take the time to look back at previous Puppet discussions you would see how easy it is. One simple approach (after 1NT - 2
♣; 2
♦) is for 2
♥ to ask about spades and for 2
♠ to show 4 hearts. You have lost Crawling Stayman here but your scheme gave up on that too. As it happens I do indeed prefer to combine it with some additional artificiality to improve the efficiency further:
1NT - 2
♣; 2
♦
==
2
♥ = asks about spades and strength
... - 2
♠ = 4 spades
... - ... - 2NT = nat, INV
... - ... - 3m = Baron
... - ... - 3
♥ = GF raise
... - ... - 3
♠ = INV raise
... - 2NT = 2-3 spades, min
... - ... - 3m = Baron
... - ... - 3
♥ = GF with heart shortage
... - ... - 3
♠ = GF with 5 spades and 3 hearts
... - others = 2-3 spades, max, GF
2
♠ = 4+ hearts
... - 2NT = 2-3 hearts, min
... - ... - 3m = Baron
... - ... - 3
♥ = 5 hearts and 3 spades, GF
... - ... - 3
♠ = GF with spade shortage
... - 3
♣ = 2-3 hearts, max (NB: it is more efficient to show the minor suits directly but it leaks information on a lot of normal hands)
... - ... - 3
♦ = Baron
... - ... - ... - 3
♥ = 4+ clubs
... - ... - ... - 3
♠ = 4+ diamonds
... - ... - ... - 3NT = 4=3=3=3
... - ... - 3
♥ = 5 hearts and 3 spades, GF
... - ... - 3
♠ = GF with spade shortage
... - 3
♦ = 4 hearts, max
... - 3
♥ = 4 hearts, min
2NT = 4-4 majors, INV
3
♣ = 4+ hearts, 4+ spades, GF
... - 3
♦ = no 4 card major
... - ... - 3
♥ = 4 hearts, 5+ spades
... - ... - 3
♠ = 4 spades, 5+ hearts
... - 3
♥ = 4 hearts
... - 3
♠ = 4 spades
... - others = 4-4 majors
3
♦ = 5+ diamonds and a 4 card major (this is necessary due to the way the rest of the structure works (only 3-way transfers are used))
3
♥ = 5 clubs, 4 diamonds (a more popular alternative is for this to show 31(45))
3
♠ = 5 diamonds, 4 clubs (a more popular alternative is for this to show 13(45))
Note that the structure is not perfect. Crawling Stayman has been given up along with the invitational hands with a long minor and some other auctions are more cramped than their counterparts in alternative schemes. As I wrote before, I know of no structure that provides everything. I do think you will find the above to be a noticeable improvement on the scheme in your previous post over a strong NT, albeit at the cost of additional complexity. Hardly expert-level stuff though!