Mazur

• 1♣: 12+p 4+♥ all shapes
  • 1♦: (0-5p any shape) or (6+p 3♥)
    • 1♥: 12-19p 4+♥ denies 5+♠ and 16-19p balanced
      • 1♠: 6+p 4+♠ 3♥
        • 1NT:
          • 2♣: 11+p 5♠
            • 2♦: 12-13p misfit ♠
            • 2♥: 12-13p fit ♠
            • 2♠: 14-15p fit ♠
            • 2NT: 14-15p misfit ♠
      • 1NT: 6-10p natural 3♥
      • 2♣: 10+p 3♥ Drury 3♥
        • 2♦: 17-19p transfer->2♥
          • 2♥: mandatory
            • 2♠: 17-19p 4441♠
            • 2NT: 17-19p 4♥ stopper ♠
            • 3♣: 17-19p 4♥5+♣ no stopper ♠
            • 3♦: 17-19p 4♥5+♦ no stopper ♠
            • 3♥: 17-19p 5+♥
        • 2♥: 11-12p
        • 2♠: 13-14p 4♥ no stopper ♠
        • 2NT: 13-14p 4♥ stopper ♠
        • 3♣: 15-16p 4♥5+♣ no stopper ♠
        • 3♦: 15-16p 4♥5+♦ no stopper ♠
        • 3♥: 13-14p 5+♥ game inviting
        • 3♠: 15-16p 4441♠
        • 3NT: 15-16p 4♥ stopper ♠
        • 4♣: 15-16p 5+♥ control ♣
        • 4♦: 15-16p 5+♥ control ♦
        • 4♥: 13-14p 5+♥ short ♠
      • 2♦: 10+p 5+♦ 3♥
      • 2♥: 10-11 losers 4+♥
      • 2♠: 8 losers 3♥ 6♠
      • 2NT: 10-12p natural 3♥
      • 3♣: 10-12p 6♣ 3♥
      • 3♦: 10-12p 6♦ 3♥
      • 3♥: 10-12p 6♠ 3♥
    • 1♠: 12-19p 4+♥5+♠ or 16-19p 4♥4♠ balanced
    • 1NT: 16-19 4♥ balanced no 4♠
      • 2♣: Transfer->2♦
      • 2♦: Transfer->2♥
      • 2♥: Transfer->2♠
      • 2♠: Transfer->2!N
      • 2NT: Transfer->3♣
    • 2♣: +20p 4♥ 4+♣ eccentric hand
      • 2♦: 0-3p 5♦ misfit ♥
      • 2♥: 0-3p to play
      • 2♠: 0-3p 5♠ misfit ♥
      • 2NT: 4+p Relay
        • 3♣: 20-22p 4♥6♣
        • 3♦: 23-25p 4♥4♦4♣
        • 3♥: 20-22p 4♥5♣3♦
        • 3♠: 20-22p 4♥5♣3♠
      • 3♣: 0-3p to play
      • 3♥: 4-5p 4♥
    • 2♦: +20p 4♥ 4+♦ eccentric hand
      • 2♥: 0-3p to play
      • 2♠: 0-3p 5♠ misfit ♥
      • 2NT: 4+p Relay
        • 3♣: 20-22p 4♥4♦4♣
        • 3♦: 20-22p 4♥6♦
        • 3♥: 20-22p 4♥5♦3♣
        • 3♠: 20-22p 4♥5♦3♠
        • 3NT: 20-22p 4♥5♦2♠2♣
      • 3♣: 0-3p 5♣ misfit ♥
      • 3♦: 0-3p to play
      • 3♥: 4-5p 4♥
    • 2♥: 4 losers 5♥4+m
      • 2♠: Relay Game forcing
        • 3♣: 5♥4+♣ short Spades
        • 3♦: 5♥4+♦ short Spades
        • 3♥: 5♥4♣ 3♠
        • 3♠: 5♥4♦ 3♠
      • 3♣: Weak
    • 2♠: 4 losers 4♥5+♠
    • 2NT: 20-22p 4♥ balanced
    • 3♣: 7 losers 4♥6♣
    • 3♦: 7 losers 4♥6♦
    • 3♥: 4 losers 6♥4♠
    • 3NT: 23-25p 4♥ balanced
    • 4♣: 3 losers 6♥4♠ short ♣
    • 4♦: 3 losers 6♥4♠ short ♦
    • (D):
      • RD: 16+p 5+♥ or 20+p any distribution
      • 1♥: 12-15p 5+♥
      • 1♠: 12-19p 4+♥5+♠
      • 1NT: 16-19p balanced
      • 2♣: 16-19p 4♥ 5+♣
      • 2♦: 16-19p 4♥ 5+♦
      • 2♥: 16-19p 6♥
      • 2NT: 20-22p balanced
      • 3♣: 12-13p 4♥ 6+♣
      • 3♦: 12-13p 4♥ 6+♦
    • (1♠):
      • D: 16+p 5+♥ or 20+p any distribution
      • 1NT: 16-19p balanced
      • 2♣: 16-19p 4♥ 5+♣
      • 2♦: 16-19p 4♥ 5+♦
      • 2♥: 16-19p 6♥
      • 2NT: 20-22p balanced
      • 3♣: 12-13p 4♥ 6+♣
      • 3♦: 12-13p 4♥ 6+♦
    • (Any):
      • 1♥: 12-19p 4+♥ denies 5+♠ and 16-19p balanced
        • (Any):
          • 1♠: 6+p 4+♠ 3♥
            • (Any):
              • 1NT:
                • (Any):
                  • 2♣: 11+p 5♠
                    • (Any):
                      • 2♦: 12-13p misfit ♠
                      • 2♥: 12-13p fit ♠
                      • 2♠: 14-15p fit ♠
                      • 2NT: 14-15p misfit ♠
          • 1NT: 6-10p natural 3♥
          • 2♣: 10+p 3♥ Drury 3♥
            • (Any):
              • 2♦: 17-19p transfer->2♥
                • (Any):
                  • 2♥: mandatory
                    • (Any):
                      • 2♠: 17-19p 4441♠
                      • 2NT: 17-19p 4♥ stopper ♠
                      • 3♣: 17-19p 4♥5+♣ no stopper ♠
                      • 3♦: 17-19p 4♥5+♦ no stopper ♠
                      • 3♥: 17-19p 5+♥
              • 2♥: 11-12p
              • 2♠: 13-14p 4♥ no stopper ♠
              • 2NT: 13-14p 4♥ stopper ♠
              • 3♣: 15-16p 4♥5+♣ no stopper ♠
              • 3♦: 15-16p 4♥5+♦ no stopper ♠
              • 3♥: 13-14p 5+♥ game inviting
              • 3♠: 15-16p 4441♠
              • 3NT: 15-16p 4♥ stopper ♠
              • 4♣: 15-16p 5+♥ control ♣
              • 4♦: 15-16p 5+♥ control ♦
              • 4♥: 13-14p 5+♥ short ♠
          • 2♦: 10+p 5+♦ 3♥
          • 2♥: 10-11 losers 4+♥
          • 2♠: 8 losers 3♥ 6♠
          • 2NT: 10-12p natural 3♥
          • 3♣: 10-12p 6♣ 3♥
          • 3♦: 10-12p 6♦ 3♥
          • 3♥: 10-12p 6♠ 3♥
      • 1♠: 12-19p 4+♥5+♠ or 16-19p 4♥4♠ balanced
      • 1NT: 16-19 4♥ balanced no 4♠
        • (Any):
          • 2♣: Transfer->2♦
          • 2♦: Transfer->2♥
          • 2♥: Transfer->2♠
          • 2♠: Transfer->2!N
          • 2NT: Transfer->3♣
      • 2♣: +20p 4♥ 4+♣ eccentric hand
        • (Any):
          • 2♦: 0-3p 5♦ misfit ♥
          • 2♥: 0-3p to play
          • 2♠: 0-3p 5♠ misfit ♥
          • 2NT: 4+p Relay
            • (Any):
              • 3♣: 20-22p 4♥6♣
              • 3♦: 23-25p 4♥4♦4♣
              • 3♥: 20-22p 4♥5♣3♦
              • 3♠: 20-22p 4♥5♣3♠
          • 3♣: 0-3p to play
          • 3♥: 4-5p 4♥
      • 2♦: +20p 4♥ 4+♦ eccentric hand
        • (Any):
          • 2♥: 0-3p to play
          • 2♠: 0-3p 5♠ misfit ♥
          • 2NT: 4+p Relay
            • (Any):
              • 3♣: 20-22p 4♥4♦4♣
              • 3♦: 20-22p 4♥6♦
              • 3♥: 20-22p 4♥5♦3♣
              • 3♠: 20-22p 4♥5♦3♠
              • 3NT: 20-22p 4♥5♦2♠2♣
          • 3♣: 0-3p 5♣ misfit ♥
          • 3♦: 0-3p to play
          • 3♥: 4-5p 4♥
      • 2♥: 4 losers 5♥4+m
      • 2♠: 4 losers 4♥5+♠
      • 2NT: 20-22p 4♥ balanced
      • 3♣: 7 losers 4♥6♣
      • 3♦: 7 losers 4♥6♦
      • 3♥: 4 losers 6♥4♠
      • 3NT: 23-25p 4♥ balanced
      • 4♣: 3 losers 6♥4♠ short ♣
      • 4♦: 3 losers 6♥4♠ short ♦
  • 1♥: 6+p 4+♠
    • 1♠: 3♠ or 4♠ with 8 losers
    • 1NT: 12-15p misfit ♠
    • 2♣: 16+p 4-5♥ stopper ♣
    • 2♦: 16+p 4-5♥ stopper ♦
    • 2♥: 6-7 losers 6♥
    • 2♠: 6-7 losers 4+♠
    • 2NT: 16-17p
    • 3♣: 7 losers 4♥6♣
    • 3♦: 7 losers 4♥6♦
    • 3♥: 5 losers 6♥
    • 3♠: 5 losers 4+♥5+♠
  • 1♠: 6+p Texas->NT
    • 1NT: 12-15p
      • 2♣: 10+p 5♣
      • 2♦: 10+p 5♦
      • 2♥: 10+p 4♣4♦3♠2♥ semi-stopper ♠
      • 2♠: 10+p 4♣4♦3♠2♥ no stopper ♠
      • 2NT: 10-12p 4♣4♦3♠2♥ stopper ♠
      • 3♣: 13+p 4♣4♦3♠2♥ no stopper ♠
      • 3NT: 13+p 4♣4♦3♠2♥ stopper ♠
    • 2♣: 16+p 4-5♥ stopper ♣
    • 2♦: 16+p 4-5♥ stopper ♦
    • 2♥: 6-7 losers 6♥
    • 2♠: 6-7 losers 4+♥5+♠
    • 2NT: 16-17p
    • 3♣: 7 losers 4♥6♣
    • 3♦: 7 losers 4♥6♦
    • 3♥: 5 losers 6♥
    • 3♠: 5 losers 4+♥5+♠
    • 4♣: 3 losers 6♥ short ♣
    • 4♦: 3 losers 6♥ short ♦
    • 4♥: 4 losers 6♥
  • 1NT: (4+p Texas->♣) or (10+p natural)
    • 2♣: (Misfit ♣) or (minimum hand)
      • 2♦: 7-9 5♣5♦
      • 2♥: 16+p 6♣
      • 2♠: 7-9 5♣5♠
      • 2NT: 11-12p to play
      • 3♣: 13-15p 6♣
      • 3♦: 13+p 5♣5♦
      • 3♠: 13+p 5♣5♠
  • 2♣: 4+p Texas->♦
    • 2♦: (Misfit ♦) or (minimum hand)
      • 2♥: 16+p 6♦
      • 2♠: 7-9p 5♦5♠
      • 2NT: 11-12p to play
      • 3♣: 10-12p 5♣5♦
      • 3♦: 13-15p 6♦
      • 3♠: 13+p 5♦5♠
  • 2♦: 6+p fit 4+♥
    • 2♥: 7-8 losers
    • 2♠: 6 losers
      • 4♦: Transfer->♥
    • 2NT: 5 losers
    • 3♣: 4 losers
    • Any:
      • 2♠: 4+♠ game or slam try
      • 2NT: Even nr. key cards; game or slam try
      • 3♣: Control ♣ game or slam try
      • 3♦: Control ♦ game or slam try
    • (D):
      • Pass: 8 losers
      • RD: 7 losers
      • 2♥: 6 losers
      • 2♠: 5 losers
      • 2NT: 4 losers
      • 3♣: 4 losers
    • (2♠):
      • Pass: 8 losers
      • D: 7 losers
      • 2NT: 6 losers
      • 3♣: 5 losers
      • 3♦: 4 losers
      • 3♥: 4 losers
  • 2♥: 4+p Texas->♠
    • 2♠: (misfit ♠) or (minimum hand)
      • 2NT: 10-12p 5♠
      • 3♣: 10-12p 5♠5♣
      • 3♦: 10-12p 5♠5♦
  • 2♠: AKQxxx or AKJxxx undefined suit
  • 2NT: 10-12p 6♣
  • 3♣: 10-12p 6♦
  • 3♦: 9 losers fit 5♥
  • 3♥: 10-12p 6♠ 2♥
  • 3♠: 10-12p 6♠ 0-1♥
  • 4♣: Splinter. Distributional hand
  • 4♦: Splinter. Distributional hand
  • 4♥: No shortness. Distributional hand
  • (D):
    • 1♦: 6+p 3♥
  • (1♦):
    • D: 6+p 3♥
    • 1NT: Texas->♣
    • 2♣: 5+♣ no ♦ stopper
  • (1♠):
    • D: Texas->NT with or without stopper ♠
    • 1NT: Stopper ♠; Texas->♣ or natural
    • 2♦: 6+p 3+♥
    • 2♥: 10-12p 6♣ no ♠ stopper
  • (1NT):
    • Pass: 2H
    • D: Texas->♣
    • 2♣: Texas->♦
    • 2♦: Texas->♥
    • 2♥: Texas->♠
    • Any: 2H
  • (2♣):
    • D: Negative double
    • 2♦: 7+p 3-4♥
    • 2♥: Texas->♠
    • 2♠: Texas->NT Stopper ♣
    • 2NT: 10-12p Natural
    • 3♣: Texas->♦ 10+p at least invitational
    • 3♦: Texas->♥ 4+♥ at least invitational
    • 3♥: Texas->♠ 6♠ 2♥ at least invitational
    • 3♠: Texas->♠ 10-12 6♠ short ♥
    • 3NT: to play
  • (Any):
    • 1♦:
      • (Any):
        • 2♦:
          • (Any):
            • 2NT:
              • (Any):
                • 3NT: 20-22p 4♥5♦2♠2♣
        • 2♥:
          • (Any):
            • 2♠: Relay Game forcing
              • (Any):
                • 3♣: 5♥4+♣ short Spades
                • 3♦: 5♥4+♦ short Spades
                • 3♥: 5♥4♣ 3♠
                • 3♠: 5♥4♦ 3♠
            • 3♣: Weak
    • 1♥: 6+p 4+♠
      • (Any):
        • 1♠: 3♠ or 4♠ with 8 losers
        • 1NT: 12-15p misfit ♠
        • 2♣: 16+p 4-5♥ stopper ♣
        • 2♦: 16+p 4-5♥ stopper ♦
        • 2♥: 6-7 losers 6♥
        • 2♠: 6-7 losers 4+♠
        • 2NT: 16-17p
        • 3♣: 7 losers 4♥6♣
        • 3♦: 7 losers 4♥6♦
        • 3♥: 5 losers 6♥
        • 3♠: 5 losers 4+♥5+♠
    • 1♠: 6+p Texas->NT
      • (Any):
        • 1NT: 12-15p
          • (Any):
            • 2♣: 10+p 5♣
            • 2♦: 10+p 5♦
            • 2♥: 10+p 4♣4♦3♠2♥ semi-stopper ♠
            • 2♠: 10+p 4♣4♦3♠2♥ no stopper ♠
            • 2NT: 10-12p 4♣4♦3♠2♥ stopper ♠
            • 3♣: 13+p 4♣4♦3♠2♥ no stopper ♠
            • 3NT: 13+p 4♣4♦3♠2♥ stopper ♠
        • 2♣: 16+p 4-5♥ stopper ♣
        • 2♦: 16+p 4-5♥ stopper ♦
        • 2♥: 6-7 losers 6♥
        • 2♠: 6-7 losers 4+♥5+♠
        • 2NT: 16-17p
        • 3♣: 7 losers 4♥6♣
        • 3♦: 7 losers 4♥6♦
        • 3♥: 5 losers 6♥
        • 3♠: 5 losers 4+♥5+♠
        • 4♣: 3 losers 6♥ short ♣
        • 4♦: 3 losers 6♥ short ♦
        • 4♥: 4 losers 6♥
    • 1NT: (4+p Texas->♣) or (10+p natural)
      • (Any):
        • 2♣: (Misfit ♣) or (minimum hand)
          • (Any):
            • 2♦: 7-9 5♣5♦
            • 2♥: 16+p 6♣
            • 2♠: 7-9 5♣5♠
            • 2NT: 11-12p to play
            • 3♣: 13-15p 6♣
            • 3♦: 13+p 5♣5♦
            • 3♠: 13+p 5♣5♠
    • 2♣: 4+p Texas->♦
      • (Any):
        • 2♦: (Misfit ♦) or (minimum hand)
          • (Any):
            • 2♥: 16+p 6♦
            • 2♠: 7-9p 5♦5♠
            • 2NT: 11-12p to play
            • 3♣: 10-12p 5♣5♦
            • 3♦: 13-15p 6♦
            • 3♠: 13+p 5♦5♠
    • 2♦: 6+p fit 4+♥
      • (D):
        • Pass: 8 losers
        • RD: 7 losers
        • 2♥: 6 losers
        • 2♠: 5 losers
        • 2NT: 4 losers
        • 3♣: 4 losers
      • (2♠):
        • Pass: 8 losers
        • D: 7 losers
        • 2NT: 6 losers
        • 3♣: 5 losers
        • 3♦: 4 losers
        • 3♥: 4 losers
      • (Any):
        • 2♥: 7-8 losers
        • 2♠: 6 losers
        • 2NT: 5 losers
        • 3♣: 4 losers
    • 2♥: 4+p Texas->♠
      • (Any):
        • 2♠: (misfit ♠) or (minimum hand)
          • (Any):
            • 2NT: 10-12p 5♠
            • 3♣: 10-12p 5♠5♣
            • 3♦: 10-12p 5♠5♦
    • 2♠: AKQxxx or AKJxxx undefined suit
    • 2NT: 10-12p 6♣
    • 3♣: 10-12p 6♦
    • 3♦: 9 losers fit 5♥
    • 3♥: 10-12p 6♠ 2♥
    • 3♠: 10-12p 6♠ 0-1♥
    • 4♣: Splinter. Distributional hand
    • 4♦: Splinter. Distributional hand
    • 4♥: No shortness. Distributional hand
• 1♦: 12+p 4+♠ all shapes (4+♥ excluded in 11-19p range)
  • 1♥: (0-5p any shape) or (6+p 3♠)
    • 1♠: 12-19 4+♠ denies 4♥ or 16-19p balanced
      • 1NT: 6-10p natural
      • 2♣: 10+p 3♠ Drury
        • 2♦: Transfer->2H 17-19p
          • 2♥: mandatory
            • 2♠: 17-19p 4441♥
            • 2NT: 17-19p 4♠ stopper ♥
            • 3♣: 17-19p 4♠5+♣ no stopper ♥
            • 3♦: 17-19p 4♠5+♦ no stopper ♥
            • 3♠: 17-19p 5+♠
        • 2♥: 13-14p 4♠ no stopper ♥
        • 2♠: 11-12p 4-5♠
        • 2NT: 13-14p 4♠ stopper ♥
        • 3♣: 15-16p 4♠5+♣ no stopper ♥
        • 3♦: 15-16p 4♠5+♦ no stopper ♥
        • 3♥: 15-16p 4441♥
        • 3♠: 13-14 5+♠
        • 3NT: 15-16p 4♠ stopper ♥
        • 4♣: 15-16p 5+♠ control ♣
        • 4♦: 15-16p 5+♠ control ♦
        • 4♥: 15-16p 5+♠ control ♥
        • 4♠: 13-14p 5+♠ short ♥
      • 2♦: 7+p 6♥_3♠ or 10+p 6+♦_3♠
      • 2♥: 10+p 5+♥_3♠
      • 2♠: 4-5p 4+♠
      • 2NT: 10-12p natural 3♠
      • 3♣: 10-12p 6♣ 3♠
      • 3♦: 10-12p 6♦ 3♠
      • 3♥: 10-12p losers 6♥ 3♠
    • 1NT: 16-19 4♠ balanced
      • 2♣: Transfer->2♦
      • 2♦: Transfer->2♥
      • 2♥: Transfer->2♠
      • 2♠: Transfer->2!N
      • 2NT: Transfer->3♣
    • 2♣: +20p 4♠ 4+♣ eccentric hand
      • 2♦: 0-3p 5♦ misfit ♠
      • 2♠: 0-3p 5♥ misfit ♠
      • 2NT: 4+p Relay
        • 3♣: 20-22p 4♠6♣
        • 3♦: 23-25p 4♠4♣4♦
        • 3♥: 20-22p 4♠5♣3♥
        • 3♠: 20-22p 4♠5♣3♦
        • 3NT: 20-22p 4♠5♣2♠2♦
      • 3♣: 0-3p to play
      • 3♠: 4-5p 4♠
    • 2♦: +20p 4♠ 4+♦ eccentric hand
      • 2♥: 0-3p 5♥ misfit ♠
      • 2♠: 0-3p to play
      • 2NT: 4+p Relay
        • 3♣: 20-22p 4♠4♦4♣
        • 3♦: 20-22p 4♠6♦
        • 3♥: 20-22p 4♠5♣3♥
        • 3♠: 20-22p 4♠5♦3♣
        • 3NT: 20-22p 4♠5♦2♠2♣
      • 3♣: 0-3p 5♣ misfit ♠
      • 3♦: 0-3p to play
      • 3♠: 4-5p 4♠
    • 2♥: 4 losers 4♠ 5+♥
    • 2♠: 4 losers 5♠ 4+m
      • 2NT: Relay Game forcing
        • 3♣: 5♠4+♣ short Hearts
        • 3♦: 5♠4+♦ short Hearts
        • 3♥: 5♠4♣ 3♥
        • 3♠: 5♠4♦ 3♥
      • 3♣: Weak
    • 2NT: 20-22p 4♠ balanced
    • 3♣: 7 losers 4♠ 6♣
    • 3♦: 7 losers 4♠ 6♦
    • 3♥: 4 losers 6♠ 4♥
    • 3♠: 5 losers 6♠
    • 3NT: 23-25p 4♠ balanced
    • 4♣: 3 losers 6♠4♥ short ♣
    • 4♦: 3 losers 6♠4♥ short ♦
    • (D):
      • RD: 16+p 5+♠ or 20+p any distribution
      • 1♠: 12-15p 5+♠
      • 1NT: 16-19p balanced
      • 2♣: 16-19p 4♠ 5+♣
      • 2♦: 16-19p 4♠ 5+♦
      • 2♠: 16-19p 6♠
      • 2NT: 20-22p balanced
      • 3♣: 12-13p 4♠ 6+♣
      • 3♦: 12-13p 4♠ 6+♦
    • (1♠):
      • D: 16+p 5+♠ or 20+p any distribution
      • 1NT: 16-19p balanced
      • 2♣: 16-19p 4♠ 5+♣
      • 2♦: 16-19p 4♠ 5+♦
      • 2♥: 16-19p 6♠
      • 2NT: 20-22p balanced
      • 3♣: 12-13p 4♠ 6+♣
      • 3♦: 12-13p 4♠ 6+♦
    • (Any):
      • 1♠: 12-19 4+♠ denies 4♥ or 16-19p balanced
        • (Any):
          • 1NT: 6-10p natural
          • 2♣: 10+p 3♠ Drury
            • (Any):
              • 2♦: Transfer->2H 17-19p
                • (Any):
                  • 2♥: mandatory
                    • (Any):
                      • 2♠: 17-19p 4441♥
                      • 2NT: 17-19p 4♠ stopper ♥
                      • 3♣: 17-19p 4♠5+♣ no stopper ♥
                      • 3♦: 17-19p 4♠5+♦ no stopper ♥
                      • 3♠: 17-19p 5+♠
              • 2♥: 13-14p 4♠ no stopper ♥
              • 2♠: 11-12p 4-5♠
              • 2NT: 13-14p 4♠ stopper ♥
              • 3♣: 15-16p 4♠5+♣ no stopper ♥
              • 3♦: 15-16p 4♠5+♦ no stopper ♥
              • 3♥: 15-16p 4441♥
              • 3♠: 13-14 5+♠
              • 3NT: 15-16p 4♠ stopper ♥
              • 4♣: 15-16p 5+♠ control ♣
              • 4♦: 15-16p 5+♠ control ♦
              • 4♥: 15-16p 5+♠ control ♥
              • 4♠: 13-14p 5+♠ short ♥
          • 2♦: 7+p 6♥_3♠ or 10+p 6+♦_3♠
          • 2♥: 10+p 5+♥_3♠
          • 2♠: 4-5p 4+♠
          • 2NT: 10-12p natural 3♠
          • 3♣: 10-12p 6♣ 3♠
          • 3♦: 10-12p 6♦ 3♠
          • 3♥: 10-12p losers 6♥ 3♠
      • 1NT: 16-19 4♠ balanced
        • (Any):
          • 2♣: Transfer->2♦
          • 2♦: Transfer->2♥
          • 2♥: Transfer->2♠
          • 2♠: Transfer->2!N
          • 2NT: Transfer->3♣
      • 2♣: +20p 4♠ 4+♣ eccentric hand
        • (Any):
          • 2♦: 0-3p 5♦ misfit ♠
          • 2♠: 0-3p 5♥ misfit ♠
          • 2NT: 4+p Relay
            • (Any):
              • 3♣: 20-22p 4♠6♣
              • 3♦: 23-25p 4♠4♣4♦
              • 3♥: 20-22p 4♠5♣3♥
              • 3♠: 20-22p 4♠5♣3♦
              • 3NT: 20-22p 4♠5♣2♠2♦
          • 3♣: 0-3p to play
          • 3♠: 4-5p 4♠
      • 2♦: +20p 4♠ 4+♦ eccentric hand
        • (Any):
          • 2♥: 0-3p 5♥ misfit ♠
          • 2♠: 0-3p to play
          • 2NT: 4+p Relay
            • (Any):
              • 3♣: 20-22p 4♠4♦4♣
              • 3♦: 20-22p 4♠6♦
              • 3♥: 20-22p 4♠5♣3♥
              • 3♠: 20-22p 4♠5♦3♣
              • 3NT: 20-22p 4♠5♦2♠2♣
          • 3♣: 0-3p 5♣ misfit ♠
          • 3♦: 0-3p to play
          • 3♠: 4-5p 4♠
      • 2♥: 4 losers 4♠ 5+♥
      • 2♠: 4 losers 5♠ 4+m
        • (Any):
          • 2NT: Relay Game forcing
            • (Any):
              • 3♣: 5♠4+♣ short Hearts
              • 3♦: 5♠4+♦ short Hearts
              • 3♥: 5♠4♣ 3♥
              • 3♠: 5♠4♦ 3♥
          • 3♣: Weak
      • 2NT: 20-22p 4♠ balanced
      • 3♣: 7 losers 4♠ 6♣
      • 3♦: 7 losers 4♠ 6♦
      • 3♥: 4 losers 6♠ 4♥
      • 3♠: 5 losers 6♠
      • 3NT: 23-25p 4♠ balanced
      • 4♣: 3 losers 6♠4♥ short ♣
      • 4♦: 3 losers 6♠4♥ short ♦
  • 1♠: 6+p Texas->NT
    • 1NT: 12-15p
    • 2♣: 16+p 4-5♠ stopper ♣
    • 2♦: 16+p 4-5♠ stopper ♦
    • 2♥: 4 losers 4+♠5+♥
    • 2♠: 6-7 losers 6♠
    • 2NT: 16-17p
    • 3♣: 7 losers 4♠6♣
    • 3♦: 7 losers 4♠6♦
    • 3♥: 4 losers 6♠4♥
    • 3♠: 5 losers 6♠
  • 1NT: (Texas->♣ undefined force) or (10+p natural)
    • 2♣: (misfit ♣) or (minimum hand)
      • 2♦: 7-9 5♣5♦
      • 2♥: 7-9 5♣5♥
      • 2♠: 16+p 6♣
      • 2NT: 11-12p to play
      • 3♣: 13-15p 6♣
      • 3♦: 13+p 5♣5♦
      • 3♥: 13+p 5♣5♥
  • 2♣: Texas->♦ undefined force
    • 2♦: (misfit ♦) or (minimum hand)
      • 2♥: 7-9p 5♦5♥
      • 2♠: 16+p 6♦
      • 2NT: 11-12p to play
      • 3♣: 10-12p 5♣5♦
      • 3♦: 13-15p 6♦
      • 3♥: 13+p 5♦5♥
  • 2♦: Texas->♥ undefined force
    • 2♥: (misfit ♥) or (minimum hand)
      • 2NT: 11-12p 5♥
      • 3♣: 10-12p 5♥5♣
      • 3♦: 10-12p 5♥5♦
      • 3♠: 13-15p 6♥
  • 2♥: 6+p fit 4+♠
    • 2♠: 7-8 losers minimum hand
    • 2NT: 6 losers
      • 4♥: Transfer->♥
    • 3♣: 5 losers
    • 3♦: 4 losers
    • Any:
      • 2NT: Even nr. key cards; game or slam try
      • 3♣: Control ♣ game or slam try
      • 3♦: Control ♦ game or slam try
      • 3♥: Control ♥ game or slam try
    • (D):
      • Pass: 8 losers
      • RD: 7 losers
      • 2♠: 6 losers
      • 2NT: 5 losers
      • 3♣: 4 losers
      • 3♦: 4 losers
  • 2♠: AKQxxx or AKJxxx undefined suit
  • 2NT: 10-12p 6♣
  • 3♣: 10-12p 6♦
  • 3♦: 10-12p 6♥
  • 3♥: 9 losers fit 5♠
  • 4♣: Splinter. Distributional hand
  • 4♦: Splinter. Distributional hand
  • 4♥: No shortness. Distributional hand
  • (D):
    • 1♥: 6+p 3♠
  • (1♥):
    • D: 6+p 3♠
    • 1NT: Stopper; Texas->♣ or natural
  • (1NT):
    • D: Texas->♣
    • 2♣: Texas->♦
    • 2♦: Texas->♥
    • 2♥: Texas->♠
  • (2♣):
    • D: 7+p (5+♥ 4+♦) or (5♥ 3♠)
    • 2♦: Texas->♥
    • 2♥: Texas->♠ fit 4+♠ 7+p
    • 2♠: Texas->NT Stopper ♣
    • 2NT: 10-12p Natural
    • 3♣: Texas->♦ 10+p at least invitational
    • 3♦: Texas->♥ 10+ 6♥ at least invitational
    • 3♥: Texas->♠ 4+♠ at least invitational
    • 3♠: preempt
    • 3NT: to play
  • (2♦):
    • D: Texas->♥
    • 2♥: Texas->♠ fit 4+♠ 7+p
    • 2♠: Texas->NT Stopper ♦
    • 2NT: 10-12p Natural
    • 3♣: Natural 10+p at least invitational
    • 3♦: Texas->♥ 10+ 6♥ at least invitational
    • 3♥: Texas->♠ 4+♥ at least invitational
    • 3♠: preempt
    • 3NT: to play
  • (Any):
    • 1♠: 6+p Texas->NT
      • (Any):
        • 1NT: 12-15p
        • 2♣: 16+p 4-5♠ stopper ♣
        • 2♦: 16+p 4-5♠ stopper ♦
        • 2♥: 4 losers 4+♠5+♥
        • 2♠: 6-7 losers 6♠
        • 2NT: 16-17p
        • 3♣: 7 losers 4♠6♣
        • 3♦: 7 losers 4♠6♦
        • 3♥: 4 losers 6♠4♥
        • 3♠: 5 losers 6♠
    • 1NT: (Texas->♣ undefined force) or (10+p natural)
      • (Any):
        • 2♣: (misfit ♣) or (minimum hand)
          • (Any):
            • 2♦: 7-9 5♣5♦
            • 2♥: 7-9 5♣5♥
            • 2♠: 16+p 6♣
            • 2NT: 11-12p to play
            • 3♣: 13-15p 6♣
            • 3♦: 13+p 5♣5♦
            • 3♥: 13+p 5♣5♥
    • 2♣: Texas->♦ undefined force
      • (Any):
        • 2♦: (misfit ♦) or (minimum hand)
          • (Any):
            • 2♦: 7-9 5♣5♦
            • 2♥: 7-9p 5♦5♥
            • 2♠: 16+p 6♦
            • 2NT: 11-12p to play
            • 3♣: 10-12p 5♣5♦
            • 3♦: 13-15p 6♦
            • 3♥: 13+p 5♦5♥
    • 2♦: Texas->♥ undefined force
      • (Any):
        • 2♥: (misfit ♥) or (minimum hand)
          • (Any):
            • 2NT: 11-12p 5♥
            • 3♣: 10-12p 5♥5♣
            • 3♦: 10-12p 5♥5♦
            • 3♠: 13-15p 6♥
    • 2♥: 6+p fit 4+♠
      • (D):
        • Pass: 8 losers
        • RD: 7 losers
        • 2♠: 6 losers
        • 2NT: 5 losers
        • 3♣: 4 losers
        • 3♦: 4 losers
      • (Any):
        • 2♠: 7-8 losers minimum hand
        • 2NT: 6 losers
        • 3♣: 5 losers
        • 3♦: 4 losers
    • 2♠: AKQxxx or AKJxxx undefined suit
    • 2NT: 10-12p 6♣
    • 3♣: 10-12p 6♦
    • 3♦: 10-12p 6♥
    • 3♥: 9 losers fit 5♠
    • 4♣: Splinter. Distributional hand
    • 4♦: Splinter. Distributional hand
    • 4♥: No shortness. Distributional hand
• 1♥: 16-19p balanced; 12+p 5+♣; denies 4M
  • 1♠: Relay 0-6p or 10+p
    • 1NT: 16-19p balanced (5♣4♦2♥2♠ possible)
    • 2♣: 11-19p 5+♣
    • 2♦: 20-22 5♣5♦
    • 2♥: 20-22p 5♣4♦3♥
    • 2♠: 20-22p 5♣4♦3♠
    • 2NT: 20-22p 5♣4♦2♥2♠
    • 3♣: 4 losers 6♣
    • 3♦: 3 losers 5♣5♦
    • 3♥: 23-25p 5♣4♦3♥
    • 3♠: 23-25p 5♣4♦3♠
    • (Any):
      • 1NT: 16-19p balanced (5♣4♦2♥2♠ possible)
      • 2♣: 11-19p 5+♣
      • 2♦: 20-22 5♣5♦
      • 2♥: 20-22p 5♣4♦3♥
      • 2♠: 20-22p 5♣4♦3♠
      • 2NT: 20-22p 5♣4♦2♥2♠
      • 3♣: 4 losers 6♣
      • 3♦: 3 losers 5♣5♦
      • 3♥: 23-25p 5♣4♦3♥
      • 3♠: 23-25p 5♣4♦3♠
  • 1NT: Relay 7-9p
    • 2♣: 12-15p 6♣
    • 2♦: 16+p balanced
    • 2♥: 16+p 5+♣3♥
    • 2♠: 16+p 5+♣3♠
    • 2NT: 16-17p 5♣4♦2♥2♠
    • 3NT: 18-19p 5♣4♦2♥2♠
  • 2♣: Texas->♦ undefined force
  • 2♦: Texas->♥ undefined force
  • 2♥: Texas->♠ undefined force
  • 2♠: AKQxxx or AKJxxx undefined suit
  • 2NT: 10-12p 6♣
  • 3♣: 10-12p 6♦
  • 3♦: 10-12p 6♥
  • 3♥: 10-12p 6♠
  • (D):
    • RD: 5♠
  • (1♠):
    • D: 5♥
  • (Any):
    • 1NT: Relay 7-9p
      • (Any):
        • 2♣: 12-15p 6♣
        • 2♦: 16+p balanced
        • 2♥: 16+p 5+♣3♥
        • 2♠: 16+p 5+♣3♠
        • 2NT: 16-17p 5♣4♦2♥2♠
        • 3NT: 18-19p 5♣4♦2♥2♠
    • 2♣: Texas->♦ undefined force
    • 2♦: Texas->♥ undefined force
    • 2♥: Texas->♠ undefined force
    • 2♠: AKQxxx or AKJxxx undefined suit
    • 2NT: 10-12p 6♣
    • 3♣: 10-12p 6♦
    • 3♦: 10-12p 6♥
    • 3♥: 10-12p 6♠
• 1♠: 12+p 6♦ or 5♦4♣ always w/o 4M
  • 1NT: Relay 0-6p or 10+p
    • 2♣: 12-19p 5♦4+♣
    • 2♦: 12-19p 6♦
    • 2♥: 20-22p 5♦4♣3♥
    • 2♠: 20-22p 5♦4♣3♠
    • 2NT: 20-22p 5♦4♣2♥2♠
    • 3♣: 4 losers 5♦5♣
    • 3♦: 4 losers 6♦
  • 2♣: Relay 7-9p
    • 2♦: 12-15p 5+♦
    • 2♥: 16+p 5+D3♥
    • 2♠: 16+p 5+D3♠
    • 2NT: 16-17p 5♦4♣2♥2♠
    • 3NT: 18-19p 5♦4♣2♥2♠
  • 2♦: Texas->♥ undefined force
  • 2♥: Texas->♠ undefined force
  • 2♠: AKQxxx or AKJxxx undefined suit
  • 2NT: 10-12p 6♣
  • 3♣: 4-6p 4♦
  • 3♦: 10-12p 6♥
  • 3♥: 10-12p 6♠
  • (D):
    • RD: 5♥
  • (2♥):
    • D: 5♠
  • (Any):
    • 1NT:
      • (Any):
        • 2♣: 12-19p 5♦4+♣
        • 2♦: 12-19p 6♦
        • 2♥: 20-22p 5♦4♣3♥
        • 2♠: 20-22p 5♦4♣3♠
        • 2NT: 20-22p 5♦4♣2♥2♠
        • 3♣: 4 losers 5♦5♣
        • 3♦: 4 losers 6♦
    • 2♣: Relay 7-9p
      • (Any):
        • 2♦: 12-15p 5+♦
        • 2♥: 16+p 5+D3♥
        • 2♠: 16+p 5+D3♠
        • 2NT: 16-17p 5♦4♣2♥2♠
        • 3NT: 18-19p 5♦4♣2♥2♠
    • 2♦: Texas->♥ undefined force
    • 2♥: Texas->♠ undefined force
    • 2♠: AKQxxx or AKJxxx undefined suit
    • 2NT: 10-12p 6♣
    • 3♣: 4-6p 4♦
    • 3♦: 10-12p 6♥
    • 3♥: 10-12p 6♠
• 1NT: 12-15p balanced. No 4 card major
  • 2♣: Transfer -> 2♦. May be weak
    • 2♦: mandatory transfer
      • 2♥: weak 5♥5♠. Opener should choose
      • 2♠: asking opener’s force
        • 2NT: minimum
        • 3♣: maximum short in ♣
        • 3♦: maximum short in ♦
        • 3♥: maximum short in ♥
        • 3♠: maximum short in ♠
        • 3NT: maximum 4333
      • 2NT: 5♦ inviting to game
      • 3♣: 5♦4♣ inviting to game
      • 3♦: 6♦ inviting to game
      • 3♥: 5♦4♠ GF short in ♥
      • 3♠: 5♦4♥ GF short in ♠
  • 2♦: Transfer -> 2♥. May be weak
    • 2♥:
      • 2♠: 5♥5♠ inviting to game
      • 2NT: 5♥ inviting to game
      • 3♣: 5♥5♣ inviting to game
      • 3♦: 5♥5♦ inviting to game
      • 3♥: 6♥ inviting to game
      • 3NT: pass or correct to 4♥ with fit
      • 4♥: sign-off
  • 2♥: Transfer -> 2♠. May be weak
    • 2♠:
      • 2NT: 5♠ inviting to game
      • 3♣: 5♠5♣ inviting to game
      • 3♦: 5♠5♦ inviting to game
      • 3♥: 5♠ GF short in ♥
      • 3♠: 6♠ inviting to game
      • 3NT: pass or correct to 4♠ with fit
      • 4♠: sign-off
  • 2♠: 5+♣ at least invitational
    • 2NT: 12-13p preference for NT
      • 3♣: 6♣ inviting to game
      • 3♦: 5♣5♦ inviting to game
      • 3♥: 5♣4♠ GF short in ♥
      • 3♠: 5♣4♥ GF short in ♠
    • 3♣: 12-13p preference for 3C
    • 3♦: 14-15p 5♣ and xx in ♦
    • 3♥: 14-15p xx in ♥
    • 3♠: 14-15p xx in ♠
  • 2NT: Transfer -> 3♣. may be weak
  • 3♣: weak 4+♣4+♦. The opener should choose
  • 3♦: 5♣5♦ GF
  • 3♥: 4441 short in ♥
  • 3♠: 4441 short in ♠
  • 4♣:
    • 4♦: Transfer->4D
      • 4♥: sign-off
      • 4♠: sign-off
  • 4♦: Transfer->4♥
    • 4♥: Sign-off
  • 4♥: Transfer->4♠
    • 4♠: Sign-off
  • (2♣):
    • D: Transfer->2D
  • (2♦):
    • D: Transfer->2H
  • (2♥):
    • D: Transfer->2S
  • (2♠):
    • D: 5+♥ inviting to game
  • (Any):
    • 2♣: Transfer -> 2♦. May be weak
      • (Any):
        • 2♦: mandatory transfer
          • (Any):
            • 2♥: weak 5♥5♠. Opener should choose
            • 2♠: asking opener’s force
              • (Any):
                • 2NT: minimum
                • 3♣: maximum short in ♣
                • 3♦: maximum short in ♦
                • 3♥: maximum short in ♥
                • 3♠: maximum short in ♠
                • 3NT: maximum 4333
            • 2NT: 5♦ inviting to game
            • 3♣: 5♦4♣ inviting to game
            • 3♦: 6♦ inviting to game
            • 3♥: 5♦4♠ GF short in ♥
            • 3♠: 5♦4♥ GF short in ♠
    • 2♦: Transfer -> 2♥. May be weak
      • (Any):
        • 2♥:
          • (Any):
            • 2♠: 5♥5♠ inviting to game
            • 2NT: 5♥ inviting to game
            • 3♣: 5♥5♣ inviting to game
            • 3♦: 5♥5♦ inviting to game
            • 3♥: 6♥ inviting to game
            • 3NT: pass or correct to 4♥ with fit
            • 4♥: sign-off
    • 2♥: Transfer -> 2♠. May be weak
      • (Any):
        • 2♠:
          • (Any):
            • 2NT: 5♠ inviting to game
            • 3♣: 5♠5♣ inviting to game
            • 3♦: 5♠5♦ inviting to game
            • 3♥: 5♠ GF short in ♥
            • 3♠: 6♠ inviting to game
            • 3NT: pass or correct to 4♠ with fit
            • 4♠: sign-off
    • 2♠: 5+♣ at least invitational
      • (Any):
        • 2NT: 12-13p preference for NT
          • (Any):
            • 3♣: 6♣ inviting to game
            • 3♦: 5♣5♦ inviting to game
            • 3♥: 5♣4♠ GF short in ♥
            • 3♠: 5♣4♥ GF short in ♠
        • 3♣: 12-13p preference for 3C
        • 3♦: 14-15p 5♣ and xx in ♦
        • 3♥: 14-15p xx in ♥
        • 3♠: 14-15p xx in ♠
    • 2NT: Transfer -> 3♣. may be weak
    • 3♣: weak 4+♣4+♦. The opener should choose
    • 3♦: 5♣5♦ GF
    • 3♥: 4441 short in ♥
    • 3♠: 4441 short in ♠
    • 4♣:
      • (Any):
        • 4♦: Transfer->4D
          • (Any):
            • 4♥: sign-off
            • 4♠: sign-off
    • 4♦: Transfer->4♥
      • (Any):
        • 4♥: Sign-off
    • 4♥: Transfer->4♠
      • (Any):
        • 4♠: Sign-off
• 2♣: major 2suiter : weak 54 54 55 or strong 44 56 65 66
  • 2♦: Relay (if weak - no preference)
    • 2♥: weak 5♥4♠
    • 2♠: weak 4-5♥5♠
    • 2NT: 20-22p 4♥!4S balanced
    • 3♣: 20-22p 4♥!4S4-5♣
    • 3♦: 20-22p 4♥!4S4-5♦
    • 3♥: 4 losers 6♥
    • 3♠: 4 losers 6♠
    • 3NT: 23-25p 4♥!4S balanced
    • 4♥: 3 losers 6♥
    • 4♠: 3 losers 6♠
  • 2♥: weak - preference ♥
    • 2NT: 20-22p 4♥!4S balanced
    • 3♣: 20-22p 4♥!4S4-5♣
    • 3♦: 20-22p 4♥!4S4-5♦
    • 3♥: inviting to game
    • 3NT: 23-25p 4♥!4S balanced
  • 2♠: weak - preference ♠
    • 2NT: 20-22p 4♥!4S balanced
    • 3♣: 20-22p 4♥!4S4-5♣
    • 3♦: 20-22p 4♥!4S4-5♦
    • 3♥: inviting to game
    • 3NT: 23-25p 4♥!4S balanced
  • 2NT: to play (misfit in majors)
  • 3♦: 4♥4♠ - inviting to game
  • 3♥: 4+♥ - inviting to game
  • 3♠: 4+♠ - inviting to game
  • 3NT: to play (misfit in majors)
  • 4♦: 4♥4♠
  • (Any):
    • 2♦: Relay (if weak - no preference)
      • (Any):
        • 2♥: weak 5♥4♠
        • 2♠: weak 4-5♥5♠
        • 2NT: 20-22p 4♥!4S balanced
        • 3♣: 20-22p 4♥!4S4-5♣
        • 3♦: 20-22p 4♥!4S4-5♦
        • 3♥: 4 losers 6♥
        • 3♠: 4 losers 6♠
        • 3NT: 23-25p 4♥!4S balanced
        • 4♥: 3 losers 6♥
        • 4♠: 3 losers 6♠
    • 2♥: weak - preference ♥
      • (Any):
        • 2NT: 20-22p 4♥!4S balanced
        • 3♣: 20-22p 4♥!4S4-5♣
        • 3♦: 20-22p 4♥!4S4-5♦
        • 3♥: inviting to game
        • 3NT: 23-25p 4♥!4S balanced
    • 2♠: weak - preference ♠
      • (Any):
        • 2NT: 20-22p 4♥!4S balanced
        • 3♣: 20-22p 4♥!4S4-5♣
        • 3♦: 20-22p 4♥!4S4-5♦
        • 3♥: inviting to game
        • 3NT: 23-25p 4♥!4S balanced
    • 2NT: to play (misfit in majors)
    • 3♦: 4♥4♠ - inviting to game
    • 3♥: 4+♥ - inviting to game
    • 3♠: 4+♠ - inviting to game
    • 3NT: to play (misfit in majors)
    • 4♦: 4♥4♠
• 2♦: weak 6♥ or 5♥4+x or strong 5+♥
  • 2♥: no interest in game
    • 2♠: 3 losers 5♥4♠
    • 2NT: 20-22p 5♥ balanced
    • 3♣: 3 losers 5♥4♣
    • 3♦: 3 losers 5♥4♦
    • 3♥: 4 losers 6♥
    • 3♠: 3 losers 5♥5♠
    • 3NT: 23-35p 5♥ balanced
  • 2♠: 5♠ 0-2♥ forcing
    • 2NT: weak 6♥ minimum
    • 3♣: weak 5♥4+♣
    • 3♦: weak 5♥4+♦
    • 3♥: weak 6♥ maximum
    • 3♠: weak 6♥ minimum with 3♠
  • 2NT: Relay - at least invitational w/o 5♠
    • 3♣: weak 5♥4+♣
    • 3♦: weak 5♥4+♦
    • 3♥: weak 6♥ minimum
    • 3♠: weak 6♥ maximum
  • 3♣: 6♣ 0-2♥ game forcing
  • 3♦: 6♦ 0-2♥ game forcing
  • 3♥: preempt
  • (D):
    • Pass: To play 2♦ doubled
    • RD: Forcing; invitational or weak
    • 2♥: to play
  • (Any):
    • 2♥: no interest in game
      • (Any):
        • 2♠: 3 losers 5♥4♠
        • 2NT: 20-22p 5♥ balanced
        • 3♣: 3 losers 5♥4♣
        • 3♦: 3 losers 5♥4♦
        • 3♥: 4 losers 6♥
        • 3♠: 3 losers 5♥5♠
        • 3NT: 23-35p 5♥ balanced
    • 2♠: 5♠ 0-2♥ forcing
      • (Any):
        • 2NT: weak 6♥ minimum
        • 3♣: weak 5♥4+♣
        • 3♦: weak 5♥4+♦
        • 3♥: weak 6♥ maximum
        • 3♠: weak 6♥ minimum with 3♠
    • 2NT: Relay - at least invitational w/o 5♠
      • (Any):
        • 3♣: weak 5♥4+♣
        • 3♦: weak 5♥4+♦
        • 3♥: weak 6♥ minimum
        • 3♠: weak 6♥ maximum
    • 3♣: 6♣ 0-2♥ game forcing
    • 3♦: 6♦ 0-2♥ game forcing
    • 3♥: preempt
• 2♥: weak 6♠ or 5♠4+m or strong 5+♠
  • 2♠: no interest in game
    • 2NT: 20-22p 5♠ balanced
    • 3♣: 3 losers 5♠4♣
    • 3♦: 3 losers 5♠4♦
    • 3♥: 4 losers 5♠4♥
    • 3♠: 4 losers 6♠
    • 3NT: 23-35p 5♠ balanced
  • 2NT: 5♥ 0-2♠ forcing
    • 3♣: weak 5♠4+♣
    • 3♦: weak 5♠4+♦
    • 3♥: weak 6♠ minimum 3♥
    • 3♠: weak 6♠ minimum misfit ♥
    • 3NT: weak 6♠ maximum misfit ♥
  • 3♣: Relay - at least invitational
    • 3♦: weak 5♠ 4♦
    • 3♥: weak 5♠ 4♣
    • 3♠: weak 6♠ minimum
    • 3NT: weak 6♠ maximum
  • 3♦: 6♦ 0-2♠ forcing
  • 3♥: 6♣ 0-2♠ forcing
  • 3♠: preempt
  • (D):
    • Pass: To play 2♥ doubled
    • RD: Forcing; invitational or weak
    • 2♠: to play
  • (Any):
    • 2♠: no interest in game
      • (Any):
        • 2NT: 20-22p 5♠ balanced
        • 3♣: 3 losers 5♠4♣
        • 3♦: 3 losers 5♠4♦
        • 3♥: 4 losers 5♠4♥
        • 3♠: 4 losers 6♠
        • 3NT: 23-35p 5♠ balanced
    • 2NT: 5♥ 0-2♠ forcing
      • (Any):
        • 3♣: weak 5♠4+♣
        • 3♦: weak 5♠4+♦
        • 3♥: weak 6♠ minimum 3♥
        • 3♠: weak 6♠ minimum misfit ♥
        • 3NT: weak 6♠ maximum misfit ♥
    • 3♣: Relay - at least invitational
      • (Any):
        • 3♦: weak 5♠ 4♦
        • 3♥: weak 5♠ 4♣
        • 3♠: weak 6♠ minimum
        • 3NT: weak 6♠ maximum
    • 3♦: 6♦ 0-2♠ forcing
    • 3♥: 6♣ 0-2♠ forcing
    • 3♠: preempt
• 2♠: weak 5♣5♦ or 6♣ or forcing game 6♣
  • 2NT: Relay (preference ♦ if weak)
    • 3♣: weak 6♣
      • 3♦: 3NT try : Stopper ♦
      • 3♥: 3NT try : Stopper ♥ and ♠
      • 3♠: 5+♠ forcing
      • 3NT: to play
  • 3♣: to play if weak opening
  • (Any):
    • 2NT: Relay (preference ♦ if weak)
      • (Any):
        • 3♣: weak 6♣
          • (Any):
            • 3♦: 3NT try : Stopper ♦
            • 3♥: 3NT try : Stopper ♥ and ♠
            • 3♠: 5+♠ forcing
            • 3NT: to play
    • 3♣: to play if weak opening
• 2NT: 20-22p balanced. No 4 card major
  • 3♣: Transfer->3♦
    • 3♦: Mandatory transfer
      • 3♥: short ♥
      • 3♠: short ♠
      • 3NT: KQxxxx or KJxxxx ♦
  • 3♦: Transfer->3♥
  • 3♥: Transfer->3♠
  • 3♠: KQxxxx or KJxxxx ♣
  • 3NT: to play
  • 4♣: 6♣ slam try
  • 4♦: 6♦ slam try
  • (Any):
    • 3♣: Transfer->3♦
      • (Any):
        • 3♦: Mandatory transfer
          • (Any):
            • 3♥: short ♥
            • 3♠: short ♠
            • 3NT: KQxxxx or KJxxxx ♦
    • 3♦: Transfer->3♥
    • 3♥: Transfer->3♠
    • 3♠: KQxxxx or KJxxxx ♣
    • 3NT: to play
    • 4♣: 6♣ slam try
    • 4♦: 6♦ slam try
• 3♣: 6♦ weak or forcing game 6♦
  • 3♦: to play if weak opening
  • 3♥: 3NT try : stopper ♥
  • 3♠: 3NT try : stopper ♠ and ♣
  • 3NT: to play
  • (Any):
    • 3♦: to play if weak opening
    • 3♥: 3NT try : stopper ♥
    • 3♠: 3NT try : stopper ♠ and ♣
    • 3NT: to play
• 3♦: preempt or forcing game 6+♥
  • 3♥: to play if weak opening
    • 3♠: forcing game control ♠ 3 key cards
    • 3NT: forcing game 4 key cards
    • 4♣: forcing game control ♣ 3 key cards
    • 4♦: forcing game control ♦ 3 key cards
    • 4♥: 2 key cards
  • 3♠: fit ♥ control ♠
  • 4♣: fit ♥ control ♣
  • 4♦: fit ♥ control ♦
  • 4♥: fit ♥ control ♥
  • 4♠: fit preempt
  • (Any):
    • 3♥: to play if weak opening
      • (Any):
        • 3♠: forcing game control ♠ 3 key cards
        • 3NT: forcing game 4 key cards
        • 4♣: forcing game control ♣ 3 key cards
        • 4♦: forcing game control ♦ 3 key cards
        • 4♥: 2 key cards
    • 3♠: fit ♥ control ♠
    • 4♣: fit ♥ control ♣
    • 4♦: fit ♥ control ♦
    • 4♥: fit ♥ control ♥
    • 4♠: fit preempt
• 3♥: preempt or forcing game 6+♠
  • 3♠: to play if weak opening
    • 3NT: forcing game 4 key cards
    • 4♣: forcing game control ♣ 3 key cards
    • 4♦: forcing game control ♦ 3 key cards
    • 4♥: forcing game control ♥ 3 key cards
    • 4♠: 2 key cards
  • (Any):
    • 3♠: to play if weak opening
      • (Any):
        • 3NT: forcing game 4 key cards
        • 4♣: forcing game control ♣ 3 key cards
        • 4♦: forcing game control ♦ 3 key cards
        • 4♥: forcing game control ♥ 3 key cards
        • 4♠: 2 key cards
• 3♠: AKQxxxx in undefined suit
• 3NT: preempt in undefined minor
• 4♣: AKQxxxxx♥ or AKQxxxx♥ + Ace
  • 4♦: asking side ace
  • (Any):
    • 4♦: asking side ace
• 4♦: AKQxxxxx♠ or AKQxxxx♠ + Ace
  • 4♥: asking side ace
  • (Any):
    • 4♥: asking side ace
• 7♣: Third and seat
• 7NT: Test vulnerable