STANDARD AMERICAN YELLOW CARD (incomplete, last updated 9/22/18)

Sections in blue are additions to the system that Tom Vescuso and I use.

               POINT COUNT
    Card Values
Ace    4 points
King   3 points
Queen  2 points
Jack   1 point

    Long Suit Points (most situations, not NT)
1 point for each card in suit more than 4

    Short Suit Points (if fit in partner's suit, or if considering takeout double)
Doubleton  1 point
Singleton  3 points
Void       5 points

Strong suit: A-K, A-Q, K-Q
Good suit:   A-K, A-Q, K-Q, A-J, K-J, Q-J-10

     COMBINED POINTS NEEDED TO MAKE CONTRACT
  3 NT:      25+ points
  4 of suit: 25+ points
  5:         29+ points
  6:         33+ points
  7:         37+ points
 
            OPENING BID

    BALANCED HAND (no more than 1 doubleton)

 0-12  Pass
13-14  1 level bid as if hand were imbalanced, followed by NT
15-17  1 NT (if 5 card major, bid 1 of the major instead)
18-19  1 level bid as if hand were imbalaced, followed by jump in NT
20-21  2 NT
22-24  2 Clubs
25-27  3 NT
28-30  2 Clubs followed by jump in NT
 31+   2 Clubs followed by double jump in NT

            IMBALANCED HAND
Bid longest suit unless that suit is a 4 card major.
     If tie for length, bid highest suit first
If 4 card major: bid longest minor suit.
     If tie for length, bid clubs with 3-3 split, otherwise bid diamonds
 0-12  Pass, unless strong 6 card suit or better (see Weak Bids below)
13-21  Bid at the 1 level
 22+   2 Clubs

      WEAK BIDS (Strong 6 card suit or better, less than opening points)
If partnership agrees, allow Good suits
  6 card suit: Bid 2 of the suit, unless it's clubs, in which case Pass
  7 card suit: Bid 3 of the suit
  8 card suit: Bid 4 of the suit

          RESPONDER'S FIRST BID

        RESPONDING TO 1 OF A SUIT IF OPPONENT PASSED

     IF RESPONDER HAS SUPPORT (3+ of a major, 4+ of a minor)
   Re-evaluate with short suit points
 0-5   Pass
 6-9   2 of the suit (if 5+ card major suit or 6+ card minor, and with a singleton or void, bid 4
         of the suit)
10-11  3 of the suit
 12+   Bid new suit as if no support and let partner show his points

   WITH BALANCED HAND AND NO SUPPORT, NO 4+ MAJOR or 5+ MINOR
 0-5   Pass
 6-9   Bid 4 card minor at 1 level if possible, else bid 1 NT
10-12  Bid 4 card minor at lowest level possible
13-15  2 NT
16-18  3 NT

      IF NEITHER OF THE ABOVE
Bid longest suit at the lowest level possible.  If there's a tie,
    bid lowest ranking suit if 4 cards, highest ranking if 5 or more
 0-5   Pass
 6-11  Bid the suit at one level if possible
 10+   If not possible to bid the suit at one level, bid suit at two level
 6-9   If neither of the above results in a bid:
         If second 4+ suit exists, bid suit the one level if possible
         If not, 1 NT

  RESPONDING TO 1 OF A SUIT IF OPPONENT BID

         WHEN OPPONENT HAS MADE A TAKEOUT DOUBLE
 4-6   Jump Shift if Good 6+ card suit (preemptive)
 5-8   Jump Raise if strong support (4+ of a major, 5+ of minor) (preemptive)
 6-9   2 over 1 bid (no jump) if Strong 5 card suit or any 6+ card suit
         (not forcing)
 6-9   You may pass if you don't want to bid
 0-9   Bid normally as if no takeout double if none of the above
10-11  2 NT if strong support (4+ of a major, 5+ of minor)
 10+   Redouble if none of the above

          WHEN OPPONENT HAS MADE AN OVERCALL

           WITH SUPPORT FOR PARTNER'S SUIT
 0-5   Pass
 6-9   Single Raise if possible at 2 level
10-11  Bid suit at 3 level
 12+   Bid suit at 4 level

           WITH NO SUPPORT FOR PARTNER'S SUIT
 0-5   Pass
 6-10  Check to see if Negative Double is in effect, if not bid as if no overcall
 11+   Bid new suit at 2 level (no jumps), 5 cards needed for major
         If new suit is 4 card minor, negative double has priority

                NEGATIVE DOUBLES
Use only if overcall is 2 Spades or less (on anything higher it's a penalty double)
  If there are unbid majors, Shows 4+ cards in all unbid major suits
  If no unbid majors, shows 4+ cards in both minor suits
      If overcall is 1-level, 6 points are required
      If overcall is 2-level, 8 points are required
  With 5-4 in the unbid suits, use judgement to chose between negative
    doubles and bidding the 5 card suit
  Special: If overcall was 1 Heart:
      Only use negative double with exactly 4 cards in spades
      Bid 1 Spade with 5+ Spade suit (6 points required)
If penalty double is desired, Pass (partner may double after seeing this bid)

       RESPONDING TO 1 NT IF NO OVERCALL

        JACOBY TRANSFERS
Bid 2 Hearts to transfer to spades
Bid 2 Diamonds to transfer to hearts
Bid 2 Spades to transfer to minor suit

           WITH 5+ IN MAJOR SUIT, AND 3 OR LESS IN OTHER MAJOR
  Transfer to the 5+ card major.
  After partner transfers normally:
    0-7   Pass
    8-9   If 6+ card suit, bid 3 of your suit to invite to game
          If 5 card suit, bid 2 NT to invite to game (partner will bid 3 or 4 of your
            suit if he has 3, otherwise will either pass or bid 3 NT
   10-15  If 6+ card suit, bid 4 of your suit
          If 5 card suit, bid 3 NT (partner will bid 4 of your suit if he has 3 or more)
    16+   If 6+ card suit, bid 3 of the suit to ask for slam
          If 5 card suit, bid 4 NT to ask for slam
  After Partner Super-Accepts (17 points with 4 cards in suit to which he transferred)
    0-7   Pass
    8-15  Raise to Game
    16+   4 Clubs (Gerber)

               WITH 6-4 OR 7-4 IN MAJOR SUITS
  Bid as if hand were a one suit hand with the longer suit, as above

                    WITH 6+ IN MINOR SUIT
  0-7   2 Spades, partner bids 3 Clubs, responder passes if suit is Clubs,
           bids 3 Diamonds otherwise
  8-9   3 of the minor suit (if partner bids 3 NT, pass)
 10-15  3 NT
  16+   4 Clubs (Gerber)

            WITH 5-5 OR BETTER IN BOTH MAJOR SUITS
  0-7   Transfer to longest and strongest suit, then pass
  8-9   Transfer to hearts, then bid spades, showing 5-5 and invitational strength
  10+   Transfer to spades, then bid hearts, showing 5-5 with enough to force to game

                  WITH 5-4 IN MAJOR SUITS
  0-7   Transfer to 5 card suit and pass
  8-9   2 Clubs (Stayman), if partner answers with a major, single raise that major
                           if partner replies 2 Diamonds, bid 2 of the 5 card major
  10+   2 Clubs (Stayman), if partner answers with a major, bid game in the major
                           if partner replies 2 Diamonds, jump to 3 of the 5 card major

             IF NONE OF THE ABOVE AND 4 CARD MAJOR
  0-7   Pass
  8-9   2 Clubs (Stayman, inviting to game)
            If partner replies at the 2 level of the 4 card major, bid 3 of the major
            If not, bid 2 NT
 10-15  2 Clubs (Stayman, forcing to game)
            If partner replies at the 2 level of the 4 card major, bid 4 of the major
            If not, bid 3 NT
  16+   2 Clubs (Stayman, exploring slam)
            Bid 4 Clubs (Gerber) after partner responds

                 IF NONE OF THE ABOVE
  0-7   Pass
  8-9   2 NT
 10-15  3 NT
 16-17  4 NT (inviting 6 NT)
 18-19  6 NT
 20-21  5 NT (inviting 7 NT)
  22+   7 NT

   RESPONDING TO 1 NT IF OPPONENT OVERCALLS

               STAYMAN CUE BID
With 10+ points and a four card major, cue bid the suit of the overcall.
  If cue bid is minor suit, partner should either bid 4 card major at 3 level or 3 NT
  If cue bid is major suit, partner should bid 4+ card major suit that was NOT bid
    at 4 level or bid 3 NT

            JACOBY/STAYMAN DOUBLE
If opponent makes the exact same bid you would have made if no overcall, Double.
  Partner will respond as if you had made the bid.


On other hands, respond naturally with judgement: Jacoby Transfers and Stayman
  are no longer in effect.

Alternatively, use transfers on overcalls in minor suits:
  Opponent's bid
    2 Clubs    - transfer normally
    2 Diamonds - Double to transfer to hearts, 2 Hearts to transfer to spades

          RESPONDING TO 2 CLUBS
Partner is showing 22+ points.  Generally, use the "waiting" method:
 0-7   2 Diamonds
  8+ : bid Good 5+ card major at 2 level, Good 5+ card minor at 3 level, else 2 NT

Alternatively, partners can agree to the "steps" method, as follows:
 0-3   2 Diamonds
 4-6   2 Hearts
 7-9   2 Spades
 10+   2 NT
 
          OPENER'S SECOND BID

             OPENING BID WAS 1 NO TRUMP
   Max hand = 17 high card points
   Min hand = 15 high card points
   Use judgement with 16 high card points
 PARTNER'S BID
2 Clubs (Stayman)
    If no 4 card major:    2 Diamonds
        If partner bids 2 NT, raise to 3 NT with max hand
        If partner bids 3 NT, pass
    If one 4 card major:   2 of that major
        If partner bids 2 NT, raise to 3 NT with max hand
        If partner bids 3 of the major suit, raise to 4 with max hand
        If partner bids a game contract, pass
    If both 4 card majors: 2 Hearts
        If partner bids 2 NT, bid 3 Spades
        If partner bids 3 of the major suit, raise to 4 with max hand
        If partner bids a game contract, pass
2 Diamonds (Jacoby)
    Transfer to 2 Hearts (if 17 points and 4 card suit, super-accept with 3 Hearts)
2 Hearts (Jacoby)
    Transfer to 2 Spades (if 17 points and 4 card suit, super-accept with 3 Spades)
2 Spades (Jacoby)
    Transfer to 3 Clubs (if partner bids 3 Diamonds, pass)
3 of a minor suit (partner shows 6 card suit 8-9 points, inviting to game)
    Min hand  Pass
    Max hand  3 NT
3 of a major suit (partner shows 6 card suit and slam interest)
    Min hand  4 of the suit
    Max hand  4 Clubs (Gerber)
2 NT
    Min hand  Pass
    Max hand  3 NT
3 NT  Pass
4 NT
    Min hand  Pass
    Max hand  6 NT
5 NT
    Min hand  6 NT
    Max hand  7 NT
6 NT  Pass
7 NT  Pass
 
         OPENING BID WAS 1 OF A SUIT

             PARTNER SUPPORTS MAJOR SUIT
  PARTNER'S BID
2 of the suit (6-9 points)
   13-15  Pass
   16-18  3 of the suit, inviting to game
   19-21  4 of the suit
3 of the suit (10-11 points)
    13    Pass
    14    Pass or 4 of the suit
   15-21  4 of the suit
4 of the suit (6-9 points, 5+ card suit, at least one singleton)
          Pass
 
             PARTNER SUPPORTS MINOR SUIT
  PARTNER'S BID
2 of the suit (6-9 points)
   13-15  Pass
   16-18  3 of the suit, inviting to game at 3 NT
   19-21  4 of the suit, inviting to game at 5 Diamonds
3 of the suit (10-11 points)
    13    Pass
   14-17  Pass or 3 NT
   18-21  3 NT or 5 of the suit
4 of the suit (6-9 points, 6+ card suit, at least one singleton)
   13-19  Pass
   20-21  Pass or 5 of the suit
 
     PARTNER BIDS NEW SUIT (forcing if player on right passed)

          WITH SUPPORT (4 cards) FOR PARTNER'S SUIT
Re-evaluate with short suit points
  PARTNER'S BID
1 or 2 of the suit (6+ points at 1 level, 10+ points at 2 level)
   13-15  Single Raise
   16-18  Jump Raise
   19-21  Jump Shift to longest and strongest unbid suit
            If no 4 card suit to bid, Jump Raise
3 of a major suit (10-11 points)
    13    Pass
    14    Pass or 4 of the suit
   15-21  4 of the suit
3 of a minor suit (10-11 points)
    13    Pass
   14-18  Pass or 3 NT
   19-21  3 NT or 5 of the minor

        WITHOUT SUPPORT (4 cards) FOR PARTNER'S SUIT
   16-18  Jump in opening suit if 6+ card major or 5+ card minor
   13-18  Bid longest and strongest 4+ card unbid
   13-15  Rebid opening suit if 6+ card major or 5+ card minor
   16-18  Jump Shift to NT
   19-21  Jump Shift to longest and strongest unbid suit
   19-21  If no 4+ card new suit to bid
            4 of opening suit if 6+ card major or 5+ card minor
            3 NT otherwise)
 
     PARTNER PASSES AFTER PLAYER ON LEFT OVERCALLS AND PLAYER ON RIGHT PASSES
Partner may be asking for a penalty double from you (see "Negative Doubles" above)
    With a 5-5 hand or 6 in your opening suit, make your normal re-bid
    With less than 3 cards in the suit that was overcalled, Double
      Partner will pass if penalty double was desired,
           or will treat double as if takeout
    With a minimum balanced hand, Pass
 
       COMPETETIVE BIDDING

                   OVERCALLS

For a regular suit overcall, a 5 card suit is required.
   At the 1 level, 10 points are needed
   At the 2 level, 13 points are needed
   With 18+ points, make takeout double instead
 
                 TAKEOUT DOUBLE

Own partnership cannot have bid.  Re-evaluate with short suit points
      If opponents have bid at least 1 suit
        13 points needed
      If opponents have bid only 1 NT
        15-17 points with a balanced hand needed
          If player on left passes, partner responds as if to an opening 1 NT bid
            (including Jacoby and Stayman)
 
          PARTNER'S RESPONSE TO TAKEOUT DOUBLE
  8-10 and a stopper in the opponent's suit: 1 NT
 11-12 and a stopper in the opponent's suit: 2 NT
  8-11 and a Good unbid suit (5 cards preferred): jump bid in that suit
  12+  bid game contract, or cue bid opponent's bid suit to force to game
If none of these apply, bid longest and strongest unbid suit
  You can pass takeout double if you have great length and strength in bid suit
    (turning it into a penalty double).  Otherwise, if opponent on right has
    not bid, you must bid something.
 
   MICHAELS CUE BID AND UNUSUAL NO TRUMP
After opponent has bid while partnership has not, use these bids to show two 5+ card suits

Use judgement in using these bids; they should not be used with every 5-5 hand:
  With weak long suits and strong short suits, it is often best to find another bid
  With an uneven split (like 6-5), it is often best to bid the longer suit instead
  If one suit is much stronger than the other, it is often best to bid the stronger suit instead
  Use these bids less when vulnerable or opponents not vulnerable
  Use these bids more when not vulnerable or opponents vulnerable
 
               MICHAELS CUE BID 
Cue bid opponent's suit to show 5-5 with 5+ cards in all unbid majors
  If cue bid is in minor suit, shows 5+ cards in both major suits
  If cue bid is in major suit, shows 5+ cards in unbid major, and 5+ cards
    in one of the minor suits
      Partner can respond 2 NT, asking you to bid the minor suit that has 5+ cards
 8 points needed for Michaels cue bid at 2 level
10 points needed for Michaels cue bid at 3 level
 
               UNUSUAL NO TRUMP 
Jump to 2 NT to show 5+ cards in the two lowest ranking suits
10 points needed for Unusual No Trump