P1DRebid
Opener's Rebid after a Precision 1D Opening Bid
7
   Precision 1D openers can show as few as two diamonds.
   Though this does not change  partner's responses or the opponents bids,
   it does greatly affect the openers rebids.

   This flowchart should handle all opener's rebids where partner
   has responded with 1H,1S,1N, or 2C.

34
1
Interference ?
1
Did either LHO or RHO bid?

2
Did partner bid
one of a major ?
1
Are you rebidding after a one of a major response from partner.

1
Find bid
2
In an uncontested auction after a one of a major response from partner,
make the appropriate rebid.

2
Did partner
respond 1NT?
1
Check if partner responded 1NT.

1
Distributional ?
1
When you are distributional it is probably right to bid again.

1
Do you have extras ?
2
With 15 HCP or 16+ total points you should make a strong bid,
a game is still possible.

1
Show distribution
2
If you have a 4 card major, reverse into it. If you have 6 diamonds,
jump to 3D.  With clubs choose between 2C and 2D based on length.

1
Weak bid available ?
4
Even though you are distributioanl you are often forced to pass with
these hands because you cannot reverse.
If you have a weak bid available to show your hand then bid it,
otherwise pass.

1
Systematic response?
2
Check to see if partner raised diamonds or if he/she bid made a
jump-shift into spades or hearts.

1
Switch Flowcharts
1
transfer control to opner's rebid file
OpenRbd
1
Make rebid
3
The 2C response from partner is forcing through 2NT.  2H and 2S are
still considered to be reverses and should show extra values.
2NT, is the catch-all rebid.  3C shows at least 4 card support.

2
Did partner
pass or double?
2
A pass or double from partner is obviously treated differently than a
suit response.

1
Did partner pass ?
1
Was partner's bid a pass?

1
Switch Flowcharts
1
Go to the flowchart entitled "Bidding When Partner Has Passed Throughout"
Solo
1
Switch Flowcharts
1
Go to the flowchart entitled "Opener's Rebid"
OpenRbd
2
Was interference 
after partner's bid?
2
If the interference was after partner's bid you are no longer forced to bid,
so the auction will proceed differently

2
Interference at
the one level?
1
Is the auction still at the 1 level?

2
Did partner
respond 1NT?
1
Did partner bid a suit or bid NT?

1
Find rebid
7
The responses here are essentially the same as they were above.
The only auction we are considering is:
1D-1H-1S-P.
The differences are that you can now raise to 2S on only 3 card support
and it is better to do this than to rebid 1NT without a heart stopper.
It is also better to rebid 2D on a 5 card suit if you do not
have a heart stopper.

2
Was partner's
bid a jump?
1
Check if partner's bid was a jump.

1
Switch Flowcharts
1
Go to the flowchart entitled "Bidding When Partner Has Bid (I)"
Constr1
2
Did partner
bid a minor?
1
Did partner bid a major or a minor suit at the two level?

2
Did partner
bid clubs?
1
Did partner bid clubs or did he make a diamond raise?

1
Switch Flowcharts
1
Go the opener's rebid flowchart to handle minor suit raises, could be inverted.
OpenRbd
1
Find your bid
6
You are now forced to bid and the 2NT rebid no longer makes the greatest
catch-all bid unless you have a stopper. You can still reverse in the other
major to show a good hand. Otherwise, if you have long diamonds you should
show those. If you have 4 card support in clubs, show that. If you can't make
a bid below 2NT, then if you have a stopper bid 2NT, if you have three card
support you can also bid 3C.

1
Find bid
1
Partner has now responded with 2 of a major.

2
Did partner bid
at the one level?
1
Check to see if partner's bid was at the one level or at the two level.

2
Did partner
bid clubs?
4
If partner bid clubs, handle the rebid in this flowchart.
If he bid, diamonds, hearts, or spades, transfer control to opener's rebid.
If partner responded with 1NT, you will make a normal rebid,
not specific to Precision.

1
Switch Flowcharts
1
transfer to the openers_rebid file
OpenRbd
1
Support double ?
7
Are you playing support doubles?
A support double is a double RHO's bid after your partner has responded
at the 1-level in a major showing 4+ cards in that suit.
If RHO doubled, you should redouble.
If RHO made any other bid, you should double.
Both these bids show EXACTLY 3 card support for partner's major.
Support doubles and redoubles are only played up through 2S.

1
Double or Redouble?
2
Check to see if your RHO doubled. If he did you must redouble.
Otherwise you should double.

1
Still have a bid ?
6
Now the opponents interference could be anywhere. In most instances you
are likely going to pass. If you can still show a minor 2-suiter cheaply,
you should. If you have 4 card support for partner you should show it. 
If you have long diamonds, you should also show it.  If you have strong
stoppers in the opponents suits, and a good hand NT rebids are still
possible as well.

1
Hand worth a bid ?
6
Here the auction is already at a very high level. Most of the time it will
be right to Pass in this situation. You shouldn't Pass if you have club
support, if you have long diamonds, if you have a reverseable hand or
if you have a good hand and stoppers in the opponent's suit.
If you have a good hand but no bid available then you can cue-bid
the opponents suit to ask partner for a stopper or you can double.

1
Pass
0

34
0 0 0 1 28 0 2
11 0 1 2 5 3 1
12 -1 1 3 4 3 2
13 -2 1 -1 -1 -1 -1
14 -1 0 -1 -1 -1 -1
15 1 1 6 13 0 2
26 1 2 7 10 0 3
29 1 3 8 9 1 0
30 2 3 -1 -1 -1 -1
31 1 4 -1 -1 -1 -1
27 0 2 11 12 3 0
32 -1 2 -1 -1 -1 -1
28 0 3 -1 -1 -1 -1
16 1 0 14 21 2 1
17 1 -1 15 20 2 1
4 1 -2 16 19 2 1
5 1 -3 17 18 2 1
6 1 -4 -1 -1 -1 -1
7 2 -3 -1 -1 -1 -1
33 2 -2 -1 -1 -1 -1
18 2 -1 -1 -1 -1 -1
19 2 0 22 23 0 1
20 2 1 -1 -1 -1 -1
21 3 0 24 27 0 1
22 3 1 25 26 0 1
24 3 2 -1 -1 -1 -1
23 4 1 -1 -1 -1 -1
25 4 0 -1 -1 -1 -1
1 0 -1 29 30 3 2
2 -1 -1 -1 -1 -1 -1
3 0 -2 15 31 1 2
8 0 -3 32 33 3 2
9 -1 -3 -1 -1 -1 -1
10 0 -4 -1 -1 -1 -1
0
