1¨   -             1©

1ª   -              ?
                     

                      - 2NT              : invitation

                      - 3§               : invitation with (5-5)
                      - 3¨              : invitation with 4+ diamonds

                      - 3©                : invitation with six cards

                      - 3ª               : invitation with four spades

                      - 3NT              : 13-15 HCP with stopper
                      - 4§               : four cards fit in spades and singleton club, 12+ HCP

                      - 4¨              : four cards fit in spades and singleton diamond, 12+ HCP   

- 4©    : solid hearts, approx. 13 HCP

                      - 4ª                : four cards fit, approx. 13 HCP

4^th suit relay

1¨   -             1©
1ª   -             2§                  (relay)
 ?

- 2¨               : five diamonds, minimum hand no three hearts
- 2©                : three cards support, If not five diamonds, possible (Hx) support with minimum hand

- 2ª                : (4-1-4-4) or (4-0-5-4) distribution and minimum opening with four clubs

- 2NT              : 13-14 HCP and stopper in club, no three hearts
- 3§                : (4-1-4-4) or (4-0-5-4) distribution and good opening

- 3¨               : six or good five diamonds, good opening
- 3©                : (4-3-5-1) distribution and good opening
- 3ª                : five spades and six diamonds, not minimum
- 3NT              : stopper in club and good opening, unbalanced distribution
 

1¨   -             1©
1ª   -             2§
2¨   -              ?

                      - Pass            : to play

                      - 2©                : choose contract with good five cards suit
                      - 2NT              : NF
                      - 3§                : game-forcing with (5-5)

- 3¨    : good invitation

                      - 3©                : game-forcing with good 6+ hearts

                      - 3ª                : slam try in spade

                      - 3NT              : to play

                      - 4¨               : RKCB for diamond

                      - 4©                : to play

                      - 4ª                : slam invitation in spade

                      - 2ª                : artificial game-forcing relay

1¨   -             1©
1ª   -             2§
2©   -              ?

                      - Pass            : to play
                      - 2NT              : NF

                      - 3§                : game-forcing with (5-5)

                      - 3¨               : game-forcing with 4+ diamonds

                      - 3©                : good invitation

                      - 3ª                : slam try in spade

                      - 3NT              : to play

                      - 4©                : to play

                      - 4ª                : slam invitation in spade

                      - 2ª                : artificial game-forcing relay

1¨   -             1©
1ª   -             2§
2ª   -              ?

                      - Pass            : to play!
                      - 2NT              : non-forcing

                      - 3§                : to play

                      - 3¨               : game-forcing with 4+ diamonds

                      - 3©                : game-forcing with good 6+ hearts

                      - 3ª                : slam try in spade

                      - 3NT              : to play                               

                      - 4§                : RKCB for club

                      - 4¨               : RKCB for diamond

                      - 4©                : to play

                      - 4ª                : slam invitation in spade

1¨   -             1©
1ª   -             2§
2NT -              ?

                      - 3§                : game-forcing with (5-5)

                      - 3¨               : game-forcing with 4+ diamonds

                      - 3©                : game-forcing with good 6+ hearts

                      - 3ª                : slam try in spade

                      - 3NT              : to play

                      - 4§                : RKCB for club

                      - 4¨               : RKCB for diamond

                      - 4©                : to play

                      - 4ª                : slam invitation in spade

1§    -             1©
1ª   -             2¨                 (relay)
 ?

- 2©                : three cards support, or possible Hx support with minimum hand

- 2ª                : (4-0-4-5) distribution and minimum opening with four diamonds

- 2NT              : 13-14 HCP and stopper in diamond, no three hearts
- 3§                : good 5+ clubs, minimum opening

- 3¨               : (4-0-4-5) distribution and good opening