meckwell lite system doc

# Precision System Document

## Openings

Notes: 1NT includes 5M332 and some 5m422/6m322. 
Otherwise, always open 5cM 1M. Always always.
All 11s get opened.

With limited openings, jump shifts promise max values, and raw
playing strength or an implied fit.

Upgrade 15-point good 6+card suits into 1C. Be wary otherwise.


1C      !F 17+ bal or 16+ unbal, any distribution
1D      2+D, 11-15, no 5cM, <6C (announce: could be short)
1H      5+H, 11-15
1S      5+S, 11-15
1NT     13+-16 bal
2C      ! 6+C, 11-15, no 5cM
2D      ! 3-4H, 3-4S, 0-1D, 4-5C, 11-15
2H      5 or 6+H, 5-10
2S      5 or 6+S, 5-10
2NT     ! 5-5 minors, 6-10 
3X      preemptive (can be 6 NV)
3NT     gambling (can have outside stopper)

## Notrump 

### notrump ladder:

0-10    pass
11-13   1D, 1NT
13+-16  1NT (strong)
17-19   1C, 1NT (strong)
20-22   1C, 2NT (2NT style)
23-25   1C, 3NT (2NT style)
26+     improvise :) 

### notrump strong:

2C        F stayman
2D        F transfer to H
2H        F transfer to S
2S        !F transfer to C (bid if like)
2NT       !F transfer to D (bid if like)
3C        !F puppet stayman
          3D        !F  no 5-card major
                    3H        ! 4S
                    3S        ! 4H
                    4D        ! 4H, 4S
          3H        5H
          3S        5S
3D        ! 5-5 minors
3H        ! 5-5 majors inv
3S        ! GF 5-5 majors GF
3NT       to play
4C        gerber
4D        texas xfer to H
4H        texas xfer to S

### notrump 2NT style:

3C        !F puppet stayman
          3D        !F no 5-card major
                    3H        ! 4S
                    3S        ! 4H
                    4D        ! 4H, 4S
          3H        5H
          3S        5S
3D        F xfer to 3H
3H        F xfer to 3S
3S        !F relay to 3NT, shows minor suit slam
3NT       to play
4C        gerber
4D        texas xfer to H
4H        texas xfer to S


## 1C not in competition

1C      !F 16+ any distribution
        1D      !F 0-7, any distribution
                1NT     17-19 (treat as strong NT)
                2NT     20-22 (or 27+, hah, treat as 

                1H/1S/2C/2D     non-forcing 5+
                2H/2S/3C/3D     !F1, strong as std 2C opener (only nonGF is a raise)
                3H/3S/4C/4D     !GF, monster sets trump, demands A or K cuebid
                
        1H      !GF 8-11, any distribution but 4441
        1S      !F 12+, 5+S
        1NT     !F 12+, bal (treat as strong NT)
        2C      !F 12+, 5+C
        2D      !F 12+, 5+D
        2H      !F 12+, 5+H
        2S      !GF 8-11, any 4441
                2NT     ! ask for shortness
        2NT     !GF 12+, any 4441
                3C      ! ask for shortness

        3C      ! 3-6, 6+C
        3D      ! 3-6, 6+D
        3H      ! 3-6, 6+H
        3S      ! 3-6, 6+S

        4H      0-4, 8+H
        4S      0-4, 8+S

## 1C in competition

Kantar Cue Bid (KCB) : shows takeout of the suit bid, GF values. Can have a 5cM
We use KCB's in most situations where the opponents show a defined suit of 5 or more cards.

A cuebid of their suit, if it shows 5+ is always a GF KCB
A jump cuebid of their suit, if it shows 5+, is always a GF KCB showing 5 in the other major.

1C      !F 16+, any distribution
        [X]
                pass    less than GF
                XX      GF
                1NT     5-7, reasonable stopper position (doesn't have to have one)
                

                new minimum     non GF 5+
                new jump        GF 5+
                new dbl jump    inv 6+ (if below game)

        [1X]    
                X       GF, denies shortness
                1NT     5-7, reasonable stopper position (doesn't have to have one)
                
                new minimum     non GF 5+
                new jump        GF 5+
                new dbl jump    inv 6+ (if below game)

        
        [2X]
                X       GF, denies shortness
                2NT     nat, inv

                new minimum     non GF 5+
                new jump        GF 5+

        
        [3X]
                X       GF, takeout
                3NT     nat
                3Y      forcing



        [1NT]
                X       GF, invites doubling
                2NT     nat, inv

                new minimum     non GF 5+
                new jump        GF 5+
                new dbl jump    inv 6+ (if below game)
        
                
        [2NT] 
                X       GF
                3Y      nat, GF




## 1D opening

1D      2+D, 11-15, no 5cM, <6C (announce: could be short)
        1H      !F 0+, 4+H
        1S      !F 0+, 4+S
        
        1NT     7-11
        2NT     11+-12
        3NT     13-15
        
        2C      F, 4+C (invitational with long clubs possible)
        2D      !F, 4(5)+D (forcing to 3D)
        
        2H      ! 0-9, 6+H
        2S      ! 0-9, 6+S
        3C      ! 0-9, 6+C
        3D      ! 0-9, 5+D

        3H/3S/4C    !F splinter

## 1H opening

1H        5+H, 11-15
          1S        !F 0+, 4+S
          1NT       !F 0+ (note, this is not announceable)
          2C/2D     GF 2/1 unless rebid
        
          2S        ! 0-9, 6+S
        
          raises:

          2NT       !GF GF raise
          3C        !F 4+ limit raise
          3D        !F 4+ constructive raise
          3H        !F preemptive

          3S/4C/4D  splinter

## 1S opening

1S        5+S, 11-15
          1NT       !F 0+ (note, this is not announceable)
          2C/2D/2H  GF 2/1 unless rebid
        
          raises:

          2NT       !GF GF raise
          3C        !F 4+ limit raise
          3D        !F 4+ constructive raise
          3S        !F preemptive

          3H/4C/4D  !F splinter


## 2C opening

2C      ! 6+C, 11-15, no 5cM
        2D      !F relay, asks for 4cM
                2H      4H
                2S      4S
                2NT     bal, min
                3C      catch all

        2H      5+H, 7-11
        2S      5+S, 7-11

        2NT     inv

        3C      !GF strong club raise, slam try
        3D      !GF  6+D
        3H      !GF  6+H
        3S      !GF  6+S

        3NT     to play

        4C      preemptive

## 2D opening

2D      ! 3-4H, 3-4S, 0-1D, 4-5C, 11-15
        2H      to play
        2S      to play
        3C      to play

        3H      !GF slam try 5+H
        3S      !GF slam try 5+S
        4C      !GF slam try 5+C

        2NT     !F ask, inv+
                3C      ! any min
                        3D      !F relay
                                3H      ! min, short spades (3415)
                                3S      ! min, short hearts (4315)
                                3NT     ! min, short diamonds (4405)
                                4C      ! min, short clubs (4414)
                        3H      inv 5(4)+H
                        3S      inv 5(4)+S
                        4C      inv 5(4)+C
                3D      ! max, short clubs (4414)
                3H      ! max, short diamonds (4405)
                3S      ! max, short hearts (4315)
                3NT     ! max, short spades (3415)


## Weak twos

2M      5-6+ cards, 6-10
        2NT     !F modified ogust
                3C      ! bad 5-card
                3D      ! good 5-card
                3H      ! bad 6-card
                3S      ! good 6-card
                3NT     ! solid
                4M      ! 7+ cards
                4new    ! 5-5, max

        new     !F asks for length/stopper
                NT      stopper
                step1   0-1 cards
                step2   2 cards
                step3   3 cards
                step4   4 cards

                after that, bidding new suit, asking for length (no NT response)

        raise   preemptive




## 2NT opening

2NT     ! 6-10 5-5 minors (be wary vul)
        3C      to play
        3D      to play
        3H      GF 6(5)+H
        3S      GF 6(5)+S
        
        3NT/4H/4S/5C/5D to play
        
        4C      GF slam try C
        4D      GF slam try D

I've complied what I know and how we play Meckwell Lite in the following cheat-sheet: http://scale-it.pl/files/precision-meckwell_lite.pdf

I hope it will be helpful.

Came here looking for 2C (strictly 6+C) advances, leaving with thoughts of adapting the whole thing.
Great stuff! Especially the KCBs and 1C approach -- I love the balance between everything: simplicity, ability to bid (even with non-GF hands) and ability to double for penalty. Are there any more specific rules, though? What are the minimum requirements for a non-GF bid after opponent's overcall? After the non-GF bid, what are the proceeding (NF)/F1/GF options for the initial 1C opener?

Big thanks and cheers for sharing this!
Martin (BBO: maasik_jr)