Roman Key-Card Blackwood
A combination of the advantages of Key-Card Blackwood and Roman Blackwood. The king of the agreed trump suit is counted as an ace, making a total of five "key-cards." Several variations are played. Here is the standard system, also known as 0314, or 3014:
5 |
shows 0 or 3 key cards |
5 |
shows 1 or 4 key cards |
5 |
shows 2 or 5 key cards, without the trump queen |
5 |
shows 2 or 5 key cards, with the trump queen |
Another variation is known as 1430:
| 5 |
shows 1 or 4 key cards |
| 5 |
shows 3 or 0 key cards |
| 5 |
shows 2 or 5 key cards, without the trump queen |
| 5 |
shows 2 or 5 key cards, with the trump queen |