2 Hearts/Spades Opening - preemptive
2NT= asking for singleton – with minimum opener rebids opening suit, with max bid singleton or NT
new suit – 5+ cards and fit
2 NT Opening: light preempt in a minor or sound preempt in a major
3 Club/Diamond Opening - sound preempt
3 Heart/Spade Opening: light preempt
new suit= 5+ cards and fit, asking for honor in that suit, without honor return to opening suit otherwise bid singleton or NT
raise= preemptive
3 NT Opening: gambling
4 Club/Diamond Opening– 8 to 8 and ˝ tricks on hearts/spades respectively
4 Heart/Spade Opening– preemptive, 4NT is RKC0314 Blackwood