Rule of 10 - When contemplating a penalty double beneath opponent's
game, consider the following criteria:
1. |
Combined partnership HCP is 20+ |
2. |
Misfit with
partner |
3. |
Trump winners
plus opponent's bidding level is 10+ |
Example: Assuming partnership holds 20+ HCP and no partnership fit.
You hold
A Q x (2 winners) in Right Hand Opponent's major suit, with the
opponents continuing biding the suit at the 2 level (8 tricks).
Since 2 + 8 = 10, a penalty double is warranted.
Opponents' Bidding Level |
Tricks
Required |
Number of Trump winners
required to Double
(assuming partnership misfit) |
1 |
6 + 1 = 7 |
10 - 7 = 3 |
2 |
6 + 2 = 8 |
10 - 8 = 2 |
3 |
6 + 3 = 9 |
10 - 9 = 1 |
Also see Environmental Factors
|