Inverted minors
Inverted minors: 1m-(Pass)-2m if the opening shows 3+m.
10+ HCP;
4+ suit if opening shows 4+m or 5+ suit if the opening shows 3+m (4+ if 16+ HCP);
no majors;
no upper HCP limit.
Opener rebid after 1♣ - 2♣:
2♦ - stop showing ♦ or 4♦, nothing about ♥ and ♠, 13+ HCP;
2♥ - stop showing ♥ or 4♥, denies a stop in ♦, nothing about ♠, 13+ HCP;
2♠ - stop showing ♠ or 4♠, denies a stop in ♦ and denies a stop in ♥, 13+ HCP;
2NT - stop showing ♦, ♥ and ♠, 14-15 HCP;
3♣ - 11-12(+) HCP;
3♦ - splinter, 13+ HCP;
3♥ - splinter, 13+ HCP;
3♠ - splinter, 13+ HCP;
3 NT:
16-17 HCP, stop showing in both majors (WJ, PC);
18-19 HCP, stop showing in both majors (21GF, Acol, Sayc).
Opener rebid after 1♦ - 2♦:
2♥ - stop showing ♥ or 4♥, nothing about ♠, 13+ HCP;
2♠ - stop showing ♠ or 4♠, denies a stop in ♥, 13+ HCP;
2NT - stop showing ♥ and ♠, 14-15 HCP;
3♣ - splinter, 13+ HCP;
3♦ - 11-12(+) HCP;
3♥ - splinter, 13+ HCP;
3♠ - splinter, 13+ HCP;
3 NT:
16-17 HCP, stop showing in both majors (WJ, PC);
18-19 HCP, stop showing in both majors (21GF, Acol, Sayc).
After the intervention, the convention is off.