XYZ Two-way checkback

Question 1

1D-1H-1S-2C

Answer 1

2C is artificial invite, or sign-off in 2D.Opener must bid 2D

Question 2

1D-1S-1NT-2C

Answer 2

2C is artificial invite, or sign-off in 2D.Opener must bid 2D

Question 3

1D-1H-1S-2C

Answer 3

2C is artificial invite, or sign-off in 2D.Opener must bid 2D

Question 4

1H-1S-1NT-2C

Answer 4

2C is artificial invite, or sign-off in 2D.Opener must bid 2D

Question 5

1D-1S-1NT-2D

Answer 5

2D is GF checkback

Question 6

1D-1H-1NT-2H

Answer 6

2H is to play

Question 7

1D-1H-1NT-2S

Answer 7

Reverse, GF

Question 8

1D-1S-1NT-2NT

Answer 8

Natural. Denies 5 cards in initial major suit

Question 9

1D-1S-1NT-3D

Answer 9

5-5 in suits, slam interest

Question 10

1D-1S-1NT-3S

Answer 10

6+ great cards, slam interest. 3NT is play, all else cue bid for major

Question 11

1D-1S-1NT-4C/D/H

Answer 11

Splinter, agreeing spades

Question 12

1D-1S-1NT-2C-2D

Answer 12

2C is checkback, forcing 2D. Pass implies long diamonds by responder

Question 13

1D-1S-1NT-2C-2D-2S

Answer 13

Mild invite, 5 good/6 poor spades. Opener must have 3 card + stronger to bid game

Question 14

1D-1H-1S-2C-2D-2S

Answer 14

Mild invite, 4 card fit.

Question 15

1D-1S-1NT-2C-2D-2NT

Answer 15

Solid invite, 5 cards in original major

Question 16

1D-1S-1NT-2C-2D-3S

Answer 16

Reasonable 6+ card suit

Question 17

1D-1H-1S-2C-2D-3S

Answer 17

Solid invite, 4 card suit

Question 18

1D-1S-1NT-2C-2D-3NT

Answer 18

Choice of game, 5332

Question 19

1D-1H-1S-2D-2H

Answer 19

2D is GF checkback. 2H shows 3 card support, any shape.

Question 20

1D-1H-1S-2D-2H-2S

Answer 20

2D is GF checkback. 2H shows 3 card support, any shape. 2S sets spades as trumps

Question 21

1D-1H-1S-2D-2H-2NT

Answer 21

2D is GF checkback. 2H shows 3 card support, any shape. 2NT denies interest in major. Asks for minor

Question 22

1D-1H-1S-2D-2H-3C/D

Answer 22

2D is GF checkback. 2H shows 3 card support, any shape. 3C/D denies interest in major. Shows 5 card minor, slam interest.

Question 23

1D-1H-1S-2D-2H-3H

Answer 23

2D is GF checkback. 2H shows 3 card support, any shape. 3H sets hearts as trumps. Cue bid now

Question 24

1D-1H-1S-2D-2H-3S/4C/4D

Answer 24

2D is GF checkback. 2H shows 3 card support, any shape. 3S/4C/4D splinters for hearts

Question 25

1D-1H-1S-2D-2H-4H

Answer 25

2D is GF checkback. 2H shows 3 card support, any shape. 4H to play, no slam interest

Question 26

1D-1H-1S-2D-2S

Answer 26

2D is GF checkback. 2S = 5 diamonds, 4 spades, denies 3 hearts

Question 27

1D-1H-1S-2D-2NT

Answer 27

2D is GF checkback. 2NT shows 3 suited or balanced. Denies 3 hearts, or 5 spades, or 6 diamonds

Question 28

1D-1H-1S-2D-3C

Answer 28

2D is GF checkback. 3C = 4135

Question 29

1D-1H-1S-2D-3D

Answer 29

2D is GF checkback. 3D shows 6+ diamonds, 4 spades, denies 3 hearts

Question 30

1D-1H-1S-2D-3S

Answer 30

2D is GF checkback. 3S = 6 diamonds, 5 spades