A guide to know when to double. Take the level of the opponent’s contract (e.g. 4 hearts) and add the number of trump you have (e.g. 5 hearts) If those numbers total at least 9, then double. Attributed to Ray Depue.
Rule of 9 b
A guide to know when to double. Take the level of the opponent’s contract (e.g. 4 hearts) and add the number of trump you have (e.g. 5 hearts) If those numbers total at least 9, then double. Attributed to Ray Depue.