Koszyk Porsche version.
Opening 1M = 10-17 PC.
Model A.
This model applies to sequences in which the strength is not specified and varies in the range of 3-5 PC.
Sequence 1. 3♦ = +6♥ 10-17 PC.
1♥ 2♣
2♥ 2NT
3♦ 3♥
3♠ = I have any shortness with extras
(3NT = waiting – 4♣♦,♥ = short ♣,♦,♠)
3NT = No short (after 4♣ – 4♦ = extras, 4♥ = mini)
4♣,♦ = short, mini
4♥ = short ♠, mini
Sequence 2. 3♥ = +6♠ 10-17 PC.
1♠ 2♣
2♠ 2NT
3♥ 3♠
3NT = I have any shortness with extras
(4♣ = waiting – 4♦,♥,♠ = short ♦,♥,♣)
4♣ = No short (after 4♦ – 4♥ = extras,4♠ = mini)
4♣,♦ = short, mini
4♥ = short ♠, mini
Model B.
This model applies to sequences in which the strength has been specified.
Sequence 1. 3♦ = +6♥15-17
1♥ 2♣
3♦ 3♥
3♠ = I have any void
(3NT = waiting – 4♣♦,♥ = void ♣,♦,♠)
3NT = No short (after 4♣ – 4♦ = extras, 4♥ = mini)
4♣,♦ = singleton
4♥ = singleton ♠
Sequence 2. 3♥ = +6♠ 15-17 PC.
1♠ 2♣
2♠ 2NT
3♥ 3♠
3NT = I have any void.
(4♣ = waiting – 4♦,♥,♠ = void ♦,♥,♣)
4♣ = No short (after 4♦- 4♥ = extras, 4♠ = mini)
4♣,♦ = singleton
4♥ = singleton ♠
Example 1.
♠ AK10432 ♠ Q5
♥ 2 ♥ J1097
♦ A65 ♦ K32
♣ 862 ♣ AKQ73
1♠ 2♣
2♠ 2NT
3♥ 3♠
4♥ 4NT = ♠ Martens RKCB
5♦ = 0-3 6♠
3♥ = +6♠
4♥ = short, no extras
After 4NT – ♠ Martens RKCB.
5♣ = 1-4
5♦ = 0-3
5♥ = void (5♠ = ♠ RKCB)
5♠ = 2A without ♠Q
5NT = 2A+♠Q + 2K
6♣ = 2A+♠Q+♣K
6♦ = 2A+♠Q+♦K
6♠ = 2A+♠Q, no K
Sequence 3.
1♥ 2♣
2♥ 3♥ light slam try with support
3♠ = I have any void
3NT = no shortness +extras
4♣,♦,♥ = singleton ♣,♦,♠
Example 2.
♠ — ♠ Q54
♥ AQ86432 ♥ K7
♦ AJ5 ♦ K32
♣ 862 ♣ AKQJ10
1♥ 2♣
2♥ 2NT
3♦ 3♥
3♠ = I have any void 3NT = where?
4♥ = void ♠ 4NT = ♥RKCB
5♠ = 2A+♥Q 7♣…
