2 over 1 GF

Default principles
Offensive bidding
Bidding diagrams
1♣      3+♣
 1♥    Nat, Walsh
 1♠    Nat, Walsh
 1NT    Nat, 6-11
 2♣    Inverted
 2♦    Weak
 2♥    Weak
 2♠    Weak
 3♣    5(4)+♣, max 10 hcp

1♦      3+♦
 1NT    Nat
 2♦    Inverted
 3♦    4+♣, max 10 hcp

1♥      5+♥
 1NT    Nat, F1
 2NT    GF, Stenberg

1♠      5+♠

1NT      15-17, 5-card Major and 6-card minor allowed

2♣      Forcing

2♦      Weak
 2♥    Nat, NF
 2♠    Nat, NF
 2NT    F1, asking for stopper
 3♥    Nat, Forcing
 3♠    Nat, Forcing
 3NT    To play

2♥      Weak
 2NT    Asking for shortage

2♠      Weak
 2NT    Asking for shortage

2NT      20-21 bal
 3♣    Puppet Stayman
 3♦    Transfer
 3♥    Transfer
 3♠    ??
 3NT    To play
 4♣    Transfer to ♥
 4♦    Transfer to ♠
 4♥    Slammish with ♣
 4♠    Slammish with ♦
 4NT    Quantitative

3♣      Preempt

3♦      Preempt

3♥      Preempt

3♠      Preempt

3NT      Solid minor
 4♣    P/C
 4♦    P/C
 4♥    Nat
 4♠    Nat
Disturbed bidding
Bidding diagrams
1♣      3+♣
 1♥    Nat, Walsh
 1♠    Nat, Walsh
 1NT    Nat, 6-11
 2♣    Inverted
 2♦    Weak
 2♥    Weak
 2♠    Weak
 3♣    5(4)+♣, max 10 hcp

1♦      3+♦
 (1♥)    Nat
  D   4+♠
  1♠   1NT without stopper
 1NT    Nat
 2♦    Inverted
 3♦    4+♣, max 10 hcp

1♥      5+♥
 1NT    Nat, F1
 2NT    GF, Stenberg

1♠      5+♠

1NT      15-17, 5-card Major and 6-card minor allowed

2♣      Forcing

2♦      Weak
 2♥    Nat, NF
 2♠    Nat, NF
 2NT    F1, asking for stopper
 3♥    Nat, Forcing
 3♠    Nat, Forcing
 3NT    To play

2♥      Weak
 2NT    Asking for shortage

2♠      Weak
 2NT    Asking for shortage

2NT      20-21 bal
 3♣    Puppet Stayman
 3♦    Transfer
 3♥    Transfer
 3♠    ??
 3NT    To play
 4♣    Transfer to ♥
 4♦    Transfer to ♠
 4♥    Slammish with ♣
 4♠    Slammish with ♦
 4NT    Quantitative

3♣      Preempt

3♦      Preempt

3♥      Preempt

3♠      Preempt

3NT      Solid minor
 4♣    P/C
 4♦    P/C
 4♥    Nat
 4♠    Nat
Defensive bidding
Bidding diagrams
Udspil