| Opening |
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NAT |
NAT ++ |
| 1♣ |
– |
12-18PC 5+♣. 4♣ if there is no five |
11-15PC without the top five or 19+ PC |
| 1♦ |
– |
12-18PC 5+♦. 4♦ if there is no five |
11-18PC 5+♦ |
| 1♥ |
– |
12-18PC 5+♥. 4♥ if there is no five |
11-18PC 5+♥ |
| 1♠ |
– |
12-18PC 5+♠. 4♠ if there is no five |
11-18PC 5+♠ |
| 1NT |
– |
16-18PC balanced circuit. |
16-18PC balanced circuit. |
| 2♣ |
– |
23+PC free composition |
12-14PC 5 ♣ and the older four or 6 ♣ |
| 2♦ |
– |
19+PC 5+♦ |
7-11PC 5-5 z min. one older |
| 2♥ |
– |
19+PC 5+♥ |
7-11PC 6+♥ |
| 2♠ |
– |
19+PC 5+♠ |
7-11PC 6+♠ |
| 2NT |
– |
19-22PC balanced circuit. |
7-11PC 5-5 in the younger ones |
| 3♣/♦/♥/♠ |
– |
9+PC kolor 7+ |
9+PC kolor 7+ |
| 3NT |
– |
|
AKDxxxx in the younger |
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| Answers |
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| 1♦ |
– |
7-10PC 3+♦ |
0-6PC negat |
| own color high. 1 |
– |
7-10PC 5+ |
7+PC 4+ |
| 1NT |
– |
7-11PC without fit |
7-11PC without fit |
| support |
– |
7-10PC 3+ in the color of the opener |
7-10PC 3+ in the color of the opener |
| own color high. 2 |
– |
11+PC 5+ |
11+PC 5+ |
| 2NT |
– |
12+PC without fit |
12+PC without fit. |
| support with glimmer |
– |
11+PC 3+ in the color of the opener |
11+PC 3+ in the color of the opener |
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| Remarks |
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| Preferences |
– |
no preference for older colors |
preference for older colors |
| Conventions |
– |
Blackwood, Gerber, Herbert says |
Stayman, Texasy, Blackwood, Gerber, Hoyt. Herbert says, Abbreviated responses |
| after opening. ♥/♠ |
– |
naturally |
Bergen, Jacoby 2NT |
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| Defense |
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| after opening. kol. |
– |
10+PC 4 in color |
10+PC 4 in color, 13+PC versus callback |
| after opening. NT |
– |
13+PC 5 in color |
Defense of Jassem |