No weak jumps in a minor
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No 'solid suit' jump-cue over 1-minor.

Sigma order is H,S,C,D - the order of game contracts. The two suited overcalls are, excluding opponent's suit:

1. lowest-unbid + middle
2. lowest-unbid + highest
3. middle-unbid + highest
4. middle-unbid + highest strong

For the cue-bid, 2NT, 3C and 3D respectively.

1C - 2C = LANDY usually 5-4 (2D? for better major)
1C - 2D = H+S
1C - 2NT = H+D
1C - 3C = S+D

1C ["two or fewer"] - 2C = Min 5+C and 4M (2D? for major)
Others as above

1D - 2D = H+S
1D - 2NT = H+C
1D - 3C = S+C
1D - 3D = S+C STRONG

1H - 2H = S+C
1H - 2NT = S+D
1H - 3C = C+D
1H - 3D = C+D STRONG

1S - 2S = H+C
1S - 2NT = H+D
1S - 3C = C+D
1H - 3D = C+D STRONG