Sayc - Standard American Yellow Card

Features:
      • 1♣ opening - 11*-21 HCP, 3+♣ without five major, 2♣ response is forcing, inverted;
      • openings 1♣/1/1/1♠ - 11*- 21 HCP.
      • 2♣ opening - 22+ HCP:

answers without intervention:

          • 2/2♠ - 8+ (7+ with ace) HCP;
          • 2NT - 7-9 HCP;
          • 3♣/3♢ - 8+ (7+ with ace) HCP;
          • 2♢ - 0-6 (7 without ace) HCP or waiting.