1 | 16+ HCP, 15 HCP possible with a distributional hand |
1 | 11 - 15 HCP, 4+ |
1 | 11 - 15 HCP, 5+ |
1 | 11 - 15 HCP, 5+ |
1NT | 12 - 15 balanced |
2 | Precision 2: 11 - 15 HCP, good 5 + 4/ or 6+ |
2 | Mini-Roman: 11 - 15 HCP, 3-suited with short : 4414 or 4405 |
2 | Weak Two in |
2 | Weak Two in |
2NT | 22 - 23 balanced |
Precision as it was originally intended is too meek for me. One can make Precision more agressive and free the 2 bid. Notice that the 1 bid is natural unless it is a maximum. I think the inclusion of the singleton diamond hands into the 1NT opening bid is a small sacrifice. The opening bid structure could for example look like this:
1 | 16+ HCP (rule of 25) |
1 | 9 - 15 HCP, 4+ or 14 - 16 balanced* |
1 | 9 - 15 HCP, 5+ |
1 | 9 - 15 HCP, 5+ |
1NT | 11 - 13 balanced* |
2 | Precision 2: 11 - 15 HCP, good 5 + 4/ or 6+ |
2 | Ekren: 6 - 10 HCP, 4+ 4+ or 22 - 23 balanced |
2 | Weak Two in (3 - 7 HCP) |
2 | Weak Two in (3 - 7 HCP) |
2NT | Unusual: Weak / Strong with 5+ 5+ |