Dynamic Notrump

Opener bids one notrump to show an unbalanced hand with 18-21 HCP. Responders bids

• 2 shows zero or one control and fewer than 7 HCP
• 2 shows fewer than two controls with 7+ HCP
• 2 shows two controls
• 2 shows threecontrols
• 2NT shows four controls and so on.