• ∅
    • 1 ♣ 2+ ♣ no 5+ major (12-20 hcp)
    • 1 ♦ 4+ ♦ no 5+ major (12 - 20 hcp)
    • 1 ♥ any of these:
      a) 5+ ♥ (12 - 20 hcp)
      b) 6+ ♥ (11 - 20 hcp)
      c) 5+ ♥ , 5+ other suit not ♠ (11-20 hcp)
      • Pass (0 - 5 p)
      • 1 ♠ 3- ♥ 4+ ♠ (6+ hcp)
      • 1NT 3- ♥ no 4+ ♠ (6 - 9 hcp)
      • 2 ♣ ♦ 3- ♥ no 4+ ♠ 5+ ♣ ♦ (10+ hcp), forcing
      • 2 ♥ 3+ ♥ (6 - 9 p)
      • 2NT 3- ♥ no 4+ ♠ (10 - 12 hcp)
      • 3 ♥ 3+ ♥ (10 - 12 p)
      • 3NT 3- ♥ no 4+ ♠ (13 - 15 hcp)
      • 4 ♥ 3+ ♥ (13 - 15 p)
      • 4NT 3+ ♥ (16+ p), Blackwood
    • 1 ♠ any of:
      a) 5+ ♠ (12 - 20 hcp)
      b) 6+ ♠ (11 - 20 hcp)
      c) 5+ ♠ , 5+ other suit (11-20 hcp)
      • Pass (0 - 5 p)
      • 1NT 2- ♠ (6 - 9 hcp)
      • 2 ♣ ♦ 3- ♠ no 4+ ♥ 5+ ♣ ♦ (10+ hcp), forcing
      • 2 ♥ 3- ♠ 4+ ♥ ( 10+ hcp), forcing
      • 2 ♠ 3+ ♠ (6 - 9 p)
      • 3NT 3- ♠ no 4+ ♥ (13 - 15 hcp)
      • 3 ♠ 3+ ♠ (10 - 12 p)
      • 4 ♠ 3+ ♠ (13 - 15 p)
      • 4NT 3+ ♠ ( 16+ p ), Blackwood
    • 1NT balanced hand (15 - 17 hcp)
      • Pass 5- ♥ ♠ , 6- ♣ ♦ (0 - 7 hcp)
      • 2 ♠ 6+ ♣ ♦ (0 - 7 hcp)
        • 3 ♣ Rescue transfer
          • Pass ♣ is long suit
          • 3 ♦ ♦ is long suit
            • Pass Transfer complete
      • 2NT either of
        a) 5+ ♣ ♦ (8 - 9 hcp)
        b) balanced hand ( 8 - 9 hcp)
        • Pass (15 - 16 hcp)
        • 3NT (17 hcp)
          • Pass not enough for slam
      • 3NT either of:
        a) 5+ ♣ ♦ (10 - 14 hcp)
        b) balanced hand ( 10 - 14 hcp)
        • Pass not enough for slam
      • 4 ♥ any of:
        a) 6+ ♥ (8 - 14 hcp)
        b) 6+ ♥ , void (7 - 14 hcp)
        • Pass not enough for slam
      • 4 ♠ any of:
        a) 6+ ♠ (8 - 14 hcp)
        b) 6+ ♠ , void (7 - 14 hcp)
        • Pass not enough for slam
  • ∅
    • (1 ♣ )
      • Dbl Takeout double 3- ♣ no 5+ major unless 4+ other major, forcing unless responder bids
        a) 3+ ♦ ♥ ♠ (12 - 16 hcp)
        b) 4441 , 5440, 4540 (11 - 16 hcp)
        • 1 ♦ any of:
          a) no 4+ card major, (0 - 5 hcp)
          a) no 4+ card major, unbalanced or no stopper in ♣ (6 - 7 hcp)
          • Pass (0 - 18 p)
        • 1 ♥ ♠ any of:
          a) stronger 5+ major (0 - 7 p)
          b) stronger 4 major (0 - 7 hcp)
        • 1NT no 4+ major, stopper ♣ , balanced (6 - 9 hcp)
        • 2 ♣ opponents suit, no 5+ major, forcing any of:
          a) unbalanced or no stopper, ♣ 0 - 4 minor ( 12+ hcp)
          b) unbalanced or no stopper, ♣ 5 minor (12+ p)
          c) no 4+ major, stopper ♣ , balanced (16+ hcp)
        • 2 ♦ no 4+ major, no stopper in ♣ or unbalanced (8 - 11 hcp)
        • 2 ♥ ♠ any of:
          a) stronger 5+ major (8 - 11 p)
          b) stronger 4 major (8 - 11 hcp)
        • 2NT no 4+ major, stopper ♣ , balanced (10 - 12 hcp)
        • 3 ♦ 6+ ♦ considering total makeup (12+ hcp)
        • 3NT no 4+ major, stopper ♣ , balanced (13 - 15 hcp)
        • 4 ♥ ♠ stronger 5+ major (12+ p), game
    • (1 ♦ )
      • Dbl Takeout double 3- ♦ no 5+ major unless 4+ other major, forcing unless responder bids
        a) 3+ ♣ ♥ ♠ (12 - 16 hcp)
        b) 4414 , 5404, 4504 (11 - 16 hcp)
        • 1 ♥ ♠ any of:
          a) stronger 4 major (0 - 7 hcp)
          b) stronger 5+ major (0 - 7 p)
        • 1NT no 4+ major, stopper ♦ , balanced (6 - 9 hcp)
        • 2 ♥ ♠ any of:
          a) stronger 4 major (8 - 11 hcp)
          b) stronger 5+ major (8 - 11 p)
        • 2 ♣ no 4+ major, no stopper ♦ or unbalanced (0 - 12+ hcp)
        • 2 ♦ 5+ minor, no 5+ major (12+ hcp)
        • 2NT no 4+ major, stopper ♦ , balanced (10 - 12 hcp)
        • 3 ♣ 6+ ♣ considering total makeup (12+ hcp)
        • 3NT no 4+ major, stopper ♦ , balanced (13 - 15 hcp)
        • 4 ♥ ♠ stronger 5+ major (12+ p), game
    • (1 ♥ )
      • Dbl Takeout double 3- ♥ , no 5+ ♠ , forcing unless responder bids
        a) 3+ ♣ ♦ ♠ (12 - 16 hcp)
        b) 4144 , 5044 (11 - 16 hcp)
        • 1 ♠ any of:
          a) 4 ♠ (0 - 7 hcp)
          b) 5+ ♠ (0 - 7 p)
        • 1NT no 4+ ♥ , stopper ♥ , balanced (6 - 9 hcp)
        • 2 ♣ no 5- ♥ , no stopper ♥ or unbalanced (12+ hcp)
        • 2 ♣ ♦ no 4+ ♥ , no stopper in ♥ or unbalanced (10 - 12 hcp)
        • 2 ♥ 5+ minor, no 5+ ♥ (12+ hcp)
        • 2 ♥ ♠ any of:
          a) stronger 4 major (8 - 11 hcp)
          b) stronger 5+ major (8 - 11 p)
        • 2NT no 4+ ♥ , stopper ♥ , balanced (10 - 12 hcp)
        • 3 ♣ ♦ 6+ ♣ ♦ considering total makeup (12+ hcp)
        • 3NT no 4+ ♥ , stopper ♥ , balanced (13 - 15 hcp)
        • 4 ♠ stronger 5+ ♠ (12 + p), game
    • (1 ♠ )
      • Dbl Takeout double 3- ♠ , no 5+ ♥ , forcing unless responder bids
        a) 3+ ♥ ♦ ♣ (12 - 16 hcp)
        b) 1444 , 0544 (11 - 16 hcp)
        • 1NT no 4+ ♠ , stopper ♠ , balanced (6 - 9 hcp)
        • 2 ♣ ♦ no 4+ ♠ , no stopper in ♠ or unbalanced (10 - 12 hcp)
        • 2 ♣ ♦ no 5- ♠ , no stopper ♠ or unbalanced (12+ hcp)
        • 2 ♥ ♠ any of:
          a) stronger 4 major (8 - 11 hcp)
          b) stronger 5+ major (8 - 11 p)
        • 2 ♠ 5+ minor, no 5+ ♠ (12+ hcp)
        • 2NT no 4+ ♠ , stopper ♠ , balanced (10 - 12 hcp)
        • 3 ♣ ♦ 6+ ♦ ♣ considering total makeup (12+ hcp)
        • 3NT no 4+ ♠ , stopper ♠ , balanced (13 - 15 hcp)
        • 4 ♥ stronger 5+ ♥ (12 + p), game