MAMIFUS Sequences

PATTERNS AND ITS DISTRIBUTIONAL AND KC ASKINGS AND RESPONSES

A 5 MINOR

1NT           2♣

2♦ no 4M      3♣  GF relay (UPH)

3♦ 5m         3♥ ASK 5^th minor

3♠ 5♣   4♣ RKCB(♣)

3N 5♦   4♣ RKCB(♦)

3♠* asks opener if he has a 54 minor when responder has a 4+2 minor

3NT no 54/45

4♣  2-2-4-5

4♦  2-2-5-4

3♥ 2344        4♣ RKCB(♣)

4♦ RKCB(♦)

4♥ To Play

4♠ RKCB(6)

               4NT Quantitative

3♠ 3244        4♣ RKCB(♣)

4♦ RKCB(♦)

4♥ RKCB(6)

4♠ To Play

               4NT Quantitative

3N 4333        4♣ GERBER        

4NT Quantitative

* This is necessary to avoid losing a 4-4 minor fit when the opener has a 5-4-2-2 with minors and responder has a 2-4 in minors.

B. 6 CARDS MINOR

1N       2♣

3♣ 6♣    3♦ ASKS RESIDUE

         4♣ RKCB(♣)

3♥ 3♥ (6332)

3♠ 3♠ (6332)

3N 3♦(6332)

3♥ or 3ª asks 3-card support

3♠ YES, CUE

3N 2-card support

4m CUE 3-card support, MAX

4M 3-cards MIN           

1NT           2♣

3♦ 6♦         3♥ ask 3-cards support (4♣ RKCB(♦))

3♠ YES, CUE   4♣ RKCB(♦)
              4♦ RKCB(♥)
              4♠ RKCB(6^th)

3N NO 3 CARDS 4♣ RKCB(♦)
              4♦ RKCB(♥)
              4♠ RKCB(6^th)
              4NT Quantitative

4♣ YES, CUE   4♦ RKCB(♦)
              4♠ RKCB(♥)
              4NT RKCB(6)

4♥ YES, MIN   4♠ RKCB(♦)

              4N RKCB(♥)

              3♠ ASKS 3 CARDS SUPPORT                       

3N NO 3-CARDS 4♣ RKCB(♦)
              4♦ RKCB(♠)
              4♥ RKCB(6^th)
              4N Quantitative

4♣ YES, CUE   4♦ RKCB(♦)
              4♥ RKCB(♠)
              4♠ TO PLAY
              4N RKCB(6^th)

4♦ YES, CUE   4♥ RKCB(♦)
              4♠ TO PLAY
              4N RKCB(♠)

4♥ YES, CUE   4♠ TO PLAY
              4N RKCB(♠)

4♠ YES, MIN   4NT RKCB(♠)

         

      

C. 4 HEARTS AND 4-5 DIAMONDS

1N            2♣

2♥ 4♥         3♣  GF relay (UPH)

3♦ 4+♦        3♥ ASKS MORE

3♠ 2-4-5-2    4♣ RKCB(♦)
              4♠ RKCB(♥)
              4N RKCB(6)

3N 4432       4♣ RKCB(♦)
              4♦ RKCB(♥)
              4N RKCB(6)

D. 4 HEARTS AND 4-5 CLUBS

1N            2♣

2♥ 4♥         3♣  GF relay (UPH)

3♥ 4♥4+♣      3♠ ASKS MORE

3N 4432       4♣ RKCB(♣) 
              4♦ RKCB(♥)
              4♠ RKCB(6)

4♣ 2425       4♦ RKCB(♣)
              4♠ RKCB(♥)
              4N RKCB(6)

                                                                                                              

E. BOTH MAJORS

1N            2♣

2♥            3♣ GF relay (UPH)                              

3♠ 44M        4♣ RKCB(♥)
              4♦ RKCB(♠)
              4♥ TO PLAY
              4♠ TO PLAY
              4N RKCB(6)

              4♥ TO PLAY
              4♠ TO PLAY
              4N RKSG (Answers 14-30-2min-2max)

F. 4 HEARTS BAL

1N            2♣

2♥ 4♥         3♣  GF relay (UPH)

3N 4333       4♣ RKCB(♥)
              4♦ RKCSGERBER
              4N Quantitative

G. 5 HEARTS (2NT)

1N            2♣

2N 5♥ NF       3♣  GF relay (UPH)

              3♥ TO PLAY

3♦ 5♥4♦       4♣ RKCB(♦)
              4♦ RKCB(♥)
              4♠ RKCB(6)

3♥ 5♥4♣       4♣ RKCB(♣)
              4♦ RKCB(♥)
              4♠ RKCB(6)

3♠ 5♥3♠       4♣ RKCB(♥)
              4♥ TO PLAY
              4♠ TO PLAY

3N 5♥2♠       4♣ RKCB(♥)
              4♥ TO PLAY
              4N RKCSGERBER

5-card major has priority over residues.

H. 4 SPADES AND 4-5 DIAMONDS

1N            2♣

2♠            3♣ GF relay (UPH)

3♦            3♥ Asks more

3♠ 4252       4♣ RKCB(♦)

              4♦ RKCB(♠)
              4♥ RKCB(6)
              4N RKCSG

3N 4242       4♣ RKCB(♦)
              4♦ RKCB(♠)
              4♥ RKCB(6)
              4N RKCSG

                       

I. 4 SPADES AND 4-5 CLUBS

1N            2♣

2♠            3♣  GF relay (UPH)
3♥ 4♠4+♣      3♠ Asks more

3N 4♠-4♣      4♣ RCKB(♣) 
              4♦ RKCB(♠)
              4N RKCB(6)

4♣ 4225       4♦ RKCB(♣)
              4♥ RKCB(♠)
              4N RKCB(6)

J. 4 OR 5 SPADES BAL

1N            2♣

2♠            3♣  GF relay (UPH)

3♠ 5332       4♣ RKCB(♠)

3N 4333       4♣ RKCB(♠)
              4♦ RKCSG
              4N Quantitative

K. 5 SPADES AND 4 IN A MINOR

1N            2♣

2♠            3♣   GF relay (UPH)

4♣ 5224       4♦ RKCB(♣)
              4♥ RKCB(♠)
              4♠ To Play
              4N RKCB(6)

4♦ 5242       4♥ RKCB(♦)
              4♠ To Play

              4N RKCB(♠) ONLY TWO  RKCB AVAILABLE

Recall that 1NT(12-14) opener in all cases is considered the weak hand, therefore all RKCB asks and answers are always 1430.

MAMIFUS

MAMIFUS es un acrónimo que abrevia cuatro palabras en Inglés: Major Minor Full Stayman. A continuación les obsequio el resumen que creó GranGurú (John Plaut) del sistema que jugamos para nuestras aperturas de 1NT 12-14 y que perfeccionamos entre ambos.

1NT is supposed to be 12-14 HCP but it may be adapted easily to any other range.

It allows any 4333, 4432, 5M332 5M4m22, 4M5m22, 4441 and 6m322. It does not permit hands with 9 cards in both majors. Those must be opened with the longest major.

Normal responses are 2♣ Stayman, 2♦ and 2♥ transfer to majors OR A 2-SUITED HAND (to be incorporated here later).

2♠ and 2NT are transfers to the minors. Intermediate suit super accepts the  minor, in order the strong hand play the dummy and receives the lead.

Responder bids of 3♥ and 3♠ are 3-suited hands usually 1=4=4=4 or 4=1=4=4 might be 0=4=(45m) or 4=0=(45m) short in the other major GF.

After 2♣ a new relay by responder of 3♣ is GF for the opener.

When 1NT opener has shown 2-suits, subsequent bids at the 4 level are RKCB-1430 for the lower, higher and both (6-KeyCards) respectively. If no space available for 3 RKC asks, RKCSG and Quantitative are discarded.

When there is a surplus of space 4NT is quantitative.

When opener has shown a 4441 hand, 4NT is RKCSG and the minor suit bids are intended for CAB (where responses by 1NT opener are 0-3,4,5,6) 1NT Opener can’t have more than 6 controls (AAKK or AAA).

A new CAB asking in the same suit is Queen’s asking 0,1,2,3, except when partner has shown 6 controls.

1. 1NT 2♣ ASKS MAJOR or INVITATIONAL with/without 4M

2. 2♦ denies 4M then 3♣ asks more explanation and 3♦ offers a 5-6 minor suit NF.

3. 2♠ with 4-5 spade cards then 3♣ is a distributional GF relay

4. 2♥ with 4♥ then 3♣ asks for second 4-card suit

5. 2N with 5♥ then 3♣ is a distributional relay

6. Permits to describe all 4441 hands when 1NT openings permits this shape (UPH = Un Passed Hand)

7. Direct inverted splinter with 1444 and 4144 (just when facing pard UnPassedHand), then 3♠ is CAB and 4♥ is CAB. When facing Passed Hand, 1NT opener has to bid his major suit.

1N            2♣  Stayman or Invitational

3♥ 1=4=4=4      

3♠ 4=1=4=4

8. Direct answer of 3♣ by 1NT opener, here 3♦ is relay for residue.

9. Only cases where we surpass 3NT is with 5♠4m, 4♠5♣ and 4♥5♣

10. You may make 3 Relay bids when 4♥-cards are found. 2 or 3 relays when 4♠-cards are found.

11. When 3♣ is first answer to Stayman 4♦ 4♥ 4♠ should be EKB:

1N            2♣ Stayman or Invitational

3♣ 6♣         4♣ RKCB(♣)
              4♦ EKB (Responses to EKB are 1-4,0-3,2,2+Q)
              4♥ EKB (Responses to EKB are 1-4,0-3,2,2+Q)
              4♠ EKB (Responses to EKB are 1-4,0-3,2,2+Q)

12. 4NT is RKCSG (Roman Key Card Super Gerber) if no suit has been agreed

13. When 1NT opener has shown 2-suits and 4NT is free then it is Quantitative. Example:

1N            2♣ Stayman or Invitational

2♥ 4♥         3♣ Ask more info

3♦ 4+♦        3♥ Ask shape

3♠ 2-4-5-2    4♣ RKCB(♦)
              4♦ RKCB(♥)
              4♠ RKCB(6-keycards)
              4NT QUANTITATIVE

14. If 1NT opener has shown 3-cards in a major 4M is to play:

1N            2♣ Stayman or Invitational

3♣            3♦ Ask more info

3♥            4♣ RKCB(♣)
              4♦ RKCB(♥)
              4♥ IS TO PLAY
              4♠ RKCB(6-keycards)
              4NT QUANTITATIVE