One Diamond opener Flashcards

1
Q

1D - 1H

A

7-10 and 5-card suit or 7+ if 4-card suit

With 11+ and 5-card suit bid 2H over 1D

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2
Q

1D - 1NT

A

7-10,

denies 4-card major

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3
Q

1D - 2C

A

11+ forcing to 2NT or suit agreement

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4
Q

1D - 2H

A

11+, 5-card suit, forcing to 2NT or suit agreement

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5
Q

1D - 2NT

A

transfer to 3C

weak - and will be passed

or converted to 3D

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6
Q

1D - 3C

A

constructive

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7
Q

1D - 1H - 1S

A

1S shows 4+card suit
(If 4-card suit any points, if 5-card not a maximum
With 6D 5S and maximum bid 2S.
5S because maximum and only 4 would bid 1S.
6D because D must be longer)

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8
Q

1D - 1H - 2H

A

4-card support (not maximum)

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9
Q

1D - 1H - 3H

A

4-card support and maximum

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10
Q

1D - 1H - 3S

A

splinter - 4-card support, maximum, shortage

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11
Q

1D - 1H - 2NT

A

3-card support, maximum, minors 5/4

After responder bids major, showing support is priority. With four card support, could splinter in the S shortage

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12
Q

1D - 1H - 3NT

A

3-card support, maximum, minors 5/5

After responder bids major, showing support is priority

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13
Q

1D - 1H - 1NT

A

balanced

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14
Q

1D - 1H - 2C

A

5/4 in the minors

2D then asks for major stops

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15
Q

1D - 1H - 2D

A

5+ card suit

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16
Q

1D - 1H - 3D

A

6D and max

Priority would be to support H or bid a S suit. With minimum bid 1NT, 2C, 2D as appropriate

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17
Q

1D - 1S - 2H

A

6D/5H and minimum

(Responder did not bid H, so 5H required, and D must be longer as 1D rather then 1H opening bid)
Minimum because 3H available to show maximum

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18
Q

1D - 1S - 3H

A

6D/5H and maximum

Responder did not bid H, so 5H required, and D must be longer as 1D rather then 1H opening bid

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19
Q

1D - 1H - 3C

A

6D/5C maximum

(2C would show second suit of 4+ - could be second suit is D as 4/5 or 5/4)

(With 5D/5C i guess just bid 2C showing at least 5/4)

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20
Q

1D - 1H - 2S

A

6D/5S maximum

1D-1H-1S would show 4+ card S suit

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21
Q

1D - 2C - 2H

A

H stop, minimum

(As minimum, a S stop is possible, 2S is check back. If both stopped and maximum, 2NT would be bid)

(When responder bids a minor showing major stops is a priority)

22
Q

1D - 2C - 2D

23
Q

1D - 2C - 2S

A

S stop but no H stop, minimum

When responder bids a minor showing major stops is a priority

24
Q

1D - 2C - 2NT

A

Both majors stopped, maximum

When responder bids a minor showing major stops is a priority

25
1D - 2C - 3C
C suit, no major stops | When responder bids a minor showing major stops is a priority
26
1D - 2C - 3D
D suit, maximum, no major stops | When responder bids a minor showing major stops is a priority
27
1D - 2C - 3H
6D and 5H | Responder did not bid H, so 5H required, and D must be longer as 1D rather then 1H opening bid
28
1D - 2D - 3D
D suit, no major stops
29
1D - 2D - 2H
H stop, minimum (As minimum, a S stop is possible, 2S is check back. If both stopped and maximum, 2NT would be bid) (When responder bids a minor showing major stops is a priority)
30
1D - 2D - 2S
S stop but no H stop, minimum | When responder bids a minor showing major stops is a priority
31
1D - 2D - 2NT
Both majors stopped, maximum | When responder bids a minor showing major stops is a priority
32
1D - 2D - 3C
C suit, no major stops | When responder bids a minor showing major stops is a priority
33
1D - 2D - 3H
6D and 5H | Responder did not bid H, so 5H required, and D must be longer as 1D rather then 1H opening bid
34
1D - key rebids
Aim to support major, over minor show stops for NT Major - with 3-card support and a maximum, bid 2NT with 5/4 in minors, 3NT with 5/5 in minors
35
1D - 1H - 2C - 2D
asking for stops (Without support for the major, priority is establishing stops. So 2S and 2NT should show S stop, minimum and maximum respectively)
36
1D - 1S
7-10 and 5-card suit or 7+ if 4-card suit | With 11+ and 5-card suit bid 2S over 1D
37
1D - 2D
11+ forcing to 2NT or suit agreement
38
1D - 2S
11+ forcing to 2NT or suit agreement
39
1D - 3D
constructive
40
1D - 1S - 2S
4-card support (not maximum)
41
1D - 1S - 3S
4-card support and maximum
42
1D - 1S - 2NT
3-card support, maximum, minors 5/4 | After responder bids major, showing support is priority
43
1D - 1S - 3NT
3-card support, maximum, minors 5/5 | After responder bids major, showing support is priority
44
1D - 1S - 1NT
balanced
45
1D - 1S - 2C
5/4 in the minors | 2D then asks for major stops
46
1D - 2C - 3S
6D and 5S | Responder did not bid S, so 5S required, and D must be longer as 1D rather then 1S opening bid
47
1D - 2D - 3S
6D and 5S | Responder did not bid S, so 5S required, and D must be longer as 1D rather then 1S opening bid
48
1D - 1S - 2C - 2D
asking for stops (Without support for the major, priority is establishing stops. So 2S and 2NT should show S stop, minimum and maximum respectively)
49
1D - 1S - 2D
5+ card suit
50
1D - 1S - 3D
6D and maximum
51
1D - 2D - 2H - 2S
Asking for S stop | Checkback after 2H shows H stop (cannot be H as responder would bid H with 4)