- Asking Bids
- One Level Openings
- One No Trump Opening
- Other Openings
- Overcall and Defense
- Opening Lead and Signals
the Dutch Volmac group and was first used during the 1980 Olympiad in Valkenburg, the Netherlands.
Opener |
Meaning |
1 ♣ |
Any 16+ HCP |
1 ♦ |
1+c♦ No 5c Major; Canapé: maybe longer ♣ 11-15 HCP |
1 ♥/♠ |
5+c♥/♠; Canapé: maybe 6+c minor 11-15 HCP |
1 NT |
Balanced or
semi-balanced; No 5c Major 13-15 HCP |
2 ♣ |
6+c♣ (or 5c♣ AKQxx) No 5c side suit 11-15 HCP |
2 ♦ |
Artificial; a) Weak 6+c Major (3)5-9 HCP; Not acceptable
in 4th |
|
b) Any 4c-4c-4c-1c 16+ HCP |
2 ♥/♠ |
5+c♥ & 5+c other (3)5-9 HCP |
|
5+c♠ & 5+c minor (3)5-9 HCP |
|
Natural 4th seat: 6+c♥/♠ 11-15 HCP |
2 NT |
Artificial; 6+c♣ No side Major or Ace or King; Transfer preemptive |
|
If 6c maybe one
side Ace or King; Denies 4c Major |
|
Not acceptable 4th seat |
3 ♣/♦/♥ |
Artificial; 7+c♦/♥/♠ No side Ace or King; Transfer preemptive |
|
Denies
4c Major; Natural 4th
seat: 7+c♣/♦/♥ 11-15 HCP |
3 ♠ |
Artificial;
Gambling 7+c solid minor; No side Ace or King or 4c Major |
|
Natural 4th seat: 7+c♠ 11-15 HCP |
3 NT |
Artificial; 5+c♣
& 5+c♦ Preemptive |
|
4th seat is Gambling 7+c solid minor with Ace or King & No
4c Major |
4 ♣/♦/♥/♠ |
Preemptive 8+c♣ /♦
/♥/♠ |
* HCP Parentheses declares non-vulnerable situation