[nullve]

DavidKok, on 2024-January-29, 05:10, said:

The initial pass with 11-13 balanced seems very risky in competition.

Here's a simple system based on 2/1 GF ("standard") that could be used to test the claim.

1st/2nd seat:

P: now also with (not just 11-13 but even) 12-14 BAL
1x = standard but never 12-14 BAL
1N+ = standard

3rd/4th seat:

P = 0-7, unsuitable for a 2-level or higher preempt
1♣ = standard OR (12-14 BAL w/o a 5c major)
1♦ = unBAL part of a standard 1♦ opening in 3rd/4th OR < standard opening values, no 5c major, unsuitable for a 2-level or higher preempt
1M = standard except systemic with as little as 8 if unsuitable for a Weak Two
1N/2♣/2N = standard
preempts: not as heavy as in standard since partner could still have 14

Note that the 1♦ opening in 3rd/4th is similar to kenrexford's Kamikaze 1♦, mentioned here.

P-1♦; ?:

P/1M: as over P-1♦ in standard
1N = 5-14, no major
...P = < standard opening values
...2♣+: as in standard over P-1♦; 1N
(...)

P-1♦; 1M-?:

P = < standard opening values, either 4 M or (3 M + ruffing value)
1♠(M=♥): same as over P-1♦; 1♥ in standard, but could be < standard opening values
...1N = 5-14, < 4 S
......P = < standard openinig values
......other: same as over P-1♦; 1♥-1♠; 1N in standard
...other: same as over P-1♦; 1M in standard
1N = < standard opening values, 2-3 M and if M=♥ maybe < 4 S
...P = 4 M
...2♣ = 5M4+C or 5M3C(32)
...2♦ = 5M4+D or 5M332
...(...)
2♣+: same as over P-1♦; 1M in standard

Also note that I haven't tried to optimise the system by taking advantage of the fact that Opener in 1st/2nd can no longer have 12-14 BAL. So 1x-1y; 2N is still 18-19 BAL, for example.

Here are 128 random deals to think about:

Spoiler

   1.
4                   T 3                 K 8 7 2             A Q J 9 6 5 
9 6                 K J 8 4 3           A Q T 5 2           7 
K J T 3             A 8 5 4 2           6                   Q 9 7 
A K T 8 7 4         6                   J 9 3               Q 5 2 

   2.
Q 8 7 3             A T                 5 2                 K J 9 6 4 
K J 8 5 3           T 6                 Q 7 4 2             A 9 
9 7 6               A J 5 4 3           K Q 8               T 2 
J                   T 8 7 6             A K Q 5             9 4 3 2 

   3.
K T                 Q 5 2               9 8 6 4 3           A J 7 
K T 7               Q 5 2               J 9 8 3             A 6 4 
J 5 3 2             Q T 8               9 6                 A K 7 4 
K Q 9 5             J 8 6 3             A T                 7 4 2 

   4.
K T 5               J 3                 9 8 7 6 4 2         A Q 
Q 8 7               9 6 5 3 2           -                   A K J T 4 
A Q 3               K J 8               7 6 5               T 9 4 2 
A Q 9 7             6 3 2               J 8 5 4             K T 

   5.
J 7                 T 5                 6 3 2               A K Q 9 8 4 
K T 8 5 3           6                   J 9 2               A Q 7 4 
K 8 7 5             J T 6 4 3           A Q 2               9 
5 2                 Q 9 8 7 6           A K J 3             T 4 

   6.
A 7 4               J T 9 6 3 2         K Q 8               5 
J 7 6 4             Q 9 5               A K T 3             8 2 
K 7                 T 9                 A 5 4 3             Q J 8 6 2 
K J 6 2             7 4                 T 8                 A Q 9 5 3 

   7.
Q T 7 6 5           A K 9 8 2           J 3                 4 
K 4                 Q 8 7               A J 6 3             T 9 5 2 
Q 6 5               7                   J T 8 4             A K 9 3 2 
T 9 5               A K 8 3             7 6 4               Q J 2 

   8.
Q 7 2               K J T 6 5 4         8                   A 9 3 
A Q J T 9           6 3 2               K 8 5               7 4 
8 2                 A                   Q T 7 6 4           K J 9 5 3 
9 7 6               Q J T               A 8 3 2             K 5 4 

   9.
K T 4 3             -                   Q 9 8 2             A J 7 6 5 
Q J 9               A 8 7 6 5 3 2       K T 4               - 
7 5                 A Q 3               K T                 J 9 8 6 4 2 
K Q J 4             9 8 6               A T 7 2             5 3 

  10.
-                   K Q J 9 4           A 5 2               T 8 7 6 3 
K J T 7 4 3 2       6                   Q 9 8               A 5 
T 8 7               K Q J 3 2           6                   A 9 5 4 
K J 6               8 7                 A T 9 5 4 2         Q 3 

  11.
K Q 8 4             J T 6 5             A 3 2               9 7 
A Q 9 4 3 2         J T 8 5             7 6                 K 
5                   7                   A K J T 8 4 3       Q 9 6 2 
A K                 J 6 5 3             Q                   T 9 8 7 4 2 

  12.
A K T 9 5           J 4 2               Q 6                 8 7 3 
T 9 6               7 4 2               A K 5               Q J 8 3 
A K 5 3             T 8 6               Q 9 7               J 4 2 
3                   A 9 6 5             Q T 8 4 2           K J 7 

  13.
3                   A J 9 7 2           K 8                 Q T 6 5 4 
T 7 6 5 3           K 4                 A Q J 9             8 2 
Q T 9 3             5                   A J 7 6 4 2         K 8 
T 8 4               A K Q J 3           2                   9 7 6 5 

  14.
3                   A Q J 4             6 2                 K T 9 8 7 5 
K Q 2               A J 5               T 9 7 4 3           8 6 
Q T 9 4 3           J 7 6 5             A K 2               8 
Q 9 8 3             K T                 7 4 2               A J 6 5 

  15.
A 9 8 6 5 2         K Q                 J T 7               4 3 
-                   T 9                 J 8 6 5 4           A K Q 7 3 2 
A 3                 9 8 7 2             Q J 4               K T 6 5 
Q T 9 8 2           K J 7 5 3           A 4                 6 

  16.
A J 7 6 3           T                   K Q 4 2             9 8 5 
T 7                 A Q J 8 5 4         K 9 3               6 2 
9 6 3               K Q T 5             J 2                 A 8 7 4 
Q J 2               A 8                 7 6 4 3             K T 9 5 

  17.
A K                 Q T 5 3             J 6 4 2             9 8 7 
J 4 2               A K                 8 7                 Q T 9 6 5 3 
K 9 7               J T 3               8 6 5 2             A Q 4 
J 9 8 6 2           K Q T 5             A 7 3               4 

  18.
5                   A K Q 8 4           T 3                 J 9 7 6 2 
J 2                 K Q 7 3             A 9 8 6 5 4         T 
A 7 5 3             T 8 2               K 6 4               Q J 9 
A 8 6 5 4 2         J                   9 3                 K Q T 7 

  19.
J 7                 Q                   A K T 9 5 4 2       8 6 3 
8 4 3               K J T 6 2           Q                   A 9 7 5 
K 9 6               A T 5               4 3                 Q J 8 7 2 
K 9 7 5 4           A Q J 6             T 3 2               8 

  20.
A Q                 J 9 8 4 2           T 6 5               K 7 3 
K 8 7 5 4           J 3                 Q T 9 6             A 2 
K 5                 A Q 9 4             J 6 3               T 8 7 2 
J T 6 5             4 2                 K Q 8               A 9 7 3 

  21.
Q                   T 7 6 4 2           A J 8 3             K 9 5 
J T 4 3             K 7 6               A Q 9 5             8 2 
Q 8 4               A 6 5               K T 9 7             J 3 2 
K Q T 9 6           7 5                 J                   A 8 4 3 2 

  22.
K T                 Q 9 8 7 4 3 2       J 6 5               A 
3                   6 5 2               A J 9 8 7 4         K Q T 
K 8 3               -                   Q 7 2               A J T 9 6 5 4 
Q J 7 6 5 3 2       T 8 4               9                   A K 

  23.
K T                 Q 8 7 4             J 9 6 5 2           A 3 
A T 7 5             9                   6 2                 K Q J 8 4 3 
Q 6 4 2             J 8 7 5 3           T 9                 A K 
T 5 4               A J 2               Q 9 8 6             K 7 3 

  24.
K T 6 4             J 8 7               A Q                 9 5 3 2 
Q J                 K 9 7 6 2           A T 5 4 3           8 
A K 7 6 3           T                   Q 9 8 5 2           J 4 
K 9                 A Q 7 2             4                   J T 8 6 5 3 

  25.
A K 9 7 5 4 2       T                   Q 8 6               J 3 
-                   T 7 6 5 2           K 8 3               A Q J 9 4 
K 5                 J 9 2               A 8 6 4 3           Q T 7 
A K 9 2             Q J 6 4             7 3                 T 8 5 

  26.
K 9 3               A J 4               T 7 6               Q 8 5 2 
9 2                 Q J 6               A K T 8 7 5         4 3 
K 8 6               4 2                 J T 3               A Q 9 7 5 
A Q 8 7 4           J T 9 6 2           3                   K 5 

  27.
J T 9               K 5                 6 2                 A Q 8 7 4 3 
Q T 8 7 4           A 6 3               9 5                 K J 2 
K Q 6 2             A J 9 7 5 3         8 4                 T 
J                   K 4                 A Q T 8 5 3 2       9 7 6 

  28.
A 8 4               6 3                 K T 9 7 5 2         Q J 
6                   K Q 9 8 5           A T 3 2             J 7 4 
Q 7 4 3 2           T 8 5               A                   K J 9 6 
A Q 9 4             8 5 3               6 2                 K J T 7 

  29.
A 8 6               K T                 9 7 3 2             Q J 5 4 
-                   A Q J 7 2           K 5 3               T 9 8 6 4 
A Q J 6 4           K 9 2               8 7 5 3             T 
Q T 8 5 2           7 6 4               J 9                 A K 3 

  30.
Q 8 5               J 7                 A T 6 4 3 2         K 9 
6                   Q T 7 5 3 2         A 9 8 4             K J 
K 9 7 6             T 3                 J                   A Q 8 5 4 2 
A Q 9 7 6           K 4 2               T 3                 J 8 5 

  31.
Q J                 5 4 3 2             T 9 8 6             A K 7 
J 4 2               7 5 3               Q 6                 A K T 9 8 
Q J 7 6 3           9                   K T 8 2             A 5 4 
9 8 6               J T 5 4 3           A 7 2               K Q 

  32.
K J 9 4             A T 8 5 2           Q 7                 6 3 
A 9 7               J T 6 4 2           Q                   K 8 5 3 
Q 9 8 3             7 6                 A K J 2             T 5 4 
7 4                 3                   T 9 8 6 5 2         A K Q J 

  33.
Q 4 3 2             A 9 7 5             8 6                 K J T 
7 6 2               Q 5 4 3             A K 8               J T 9 
7 6 2               J 9                 T 8 4 3             A K Q 5 
9 7 4               T 8 2               A K 6 5             Q J 3 

  34.
8 6 4               Q 9 7 5 2           A K                 J T 3 
Q T 7 5 4 2         8                   K J 9 6             A 3 
9 2                 Q T 7               K J 8 3             A 6 5 4 
8 6                 K 7 3 2             A T 5               Q J 9 4 

  35.
9 5                 7                   A K Q J T 8         6 4 3 2 
K                   A 7 5 4             Q 9 6 2             J T 8 3 
Q T                 K J 7 6 4 3         9 5                 A 8 2 
A Q T 9 7 5 4 3     6 2                 8                   K J 

  36.
A K 7 2             J 9 6               Q T 8               5 4 3 
J 7 4               K 8 6               A Q T 2             9 5 3 
K T 8 5             Q 9 2               A J 6 4             7 3 
A 6                 K J 5 2             Q 3                 T 9 8 7 4 

  37.
T 9 3               J 6 5               A Q 8               K 7 4 2 
A Q J 9 7           6 5                 3 2                 K T 8 4 
J 9 7 4             T 5 2               A 3                 K Q 8 6 
2                   A T 7 4 3           Q J 9 8 6 5         K 

  38.
J 5 4 3             A K                 Q T 8               9 7 6 2 
Q J 9 7 6           A 5 4 3             T 2                 K 8 
7                   K 6 4 2             J T 3               A Q 9 8 5 
5 4 2               T 9 3               A J 8 7 6           K Q 

  39.
4                   A 7 5 3 2           K Q J T             9 8 6 
A J T               9 5 3               K Q 8 6 2           7 4 
Q J 9 6 4           8                   A K 3               T 7 5 2 
K 9 5 4             Q 8 7 6             3                   A J T 2 

  40.
A 9 8               K Q T 5 4 2         J                   7 6 3 
Q J 7               K 9 6 3 2           A 8 4               T 5 
7 5                 A                   J 9 6 4             K Q T 8 3 2 
K Q J 6 3           2                   A T 9 7 5           8 4 

  41.
Q 9 8 5 4           -                   K J T 6 3 2         A 7 
A 4                 Q T 9 7 2           J 5 3               K 8 6 
A J T               K 9 7               6 3 2               Q 8 5 4 
J 9 5               A Q 7 6 2           8                   K T 4 3 

  42.
Q 9 8               6 5                 T 4 2               A K J 7 3 
T 4 3 2             A 7 6               K Q J 5             9 8 
9 5                 T 8 6 4 2           A J 3               K Q 7 
K T 7 3             A 9 6               Q J 8               5 4 2 

  43.
Q 7                 6 2                 A K T               J 9 8 5 4 3 
T 9 4 2             K 6 3               7                   A Q J 8 5 
J T                 A Q 6 4 3 2         K 9 8 7 5           - 
K Q 9 7 6           T 2                 A J 8 3             5 4 

  44.
7 6 2               T 9                 A 8 5 4 3           K Q J 
T 6 2               J 9 8 7 5           A 3                 K Q 4 
T 3                 A 8 7 6             9 5 2               K Q J 4 
K 9 8 7 4           A 5                 J 6 3               Q T 2 

  45.
T 7 6 4             K 9 5               Q J 3 2             A 8 
K Q J               T 6 3               9 7 5 2             A 8 4 
Q T 4               9 5                 J 8 7 2             A K 6 3 
J 9 6               Q T 7 5 2           4                   A K 8 3 

  46.
K 8 6 2             J                   A Q 5 4             T 9 7 3 
A J T 6 2           K 8 7               9 4                 Q 5 3 
9 6                 Q J 8 2             T 3                 A K 7 5 4 
5 4                 A K 9 8 2           Q J T 6 3           7 

  47.
Q J T 6 3           A 9                 K 8 7 5 2           4 
K                   A 8 6 5             3                   Q J T 9 7 4 2 
9 8 7 4 3           A 6                 Q J 5               K T 2 
9 8                 K J 7 3 2           T 6 5 4             A Q 

  48.
-                   Q 9 8 5             7 4 3 2             A K J T 6 
9 6 2               K Q 8               A 5 4 3             J T 7 
A T 5 4 2           K 6                 9 8 7 3             Q J 
Q 8 7 6 2           K J 9 4             A                   T 5 3 

  49.
Q 5 4               A K T 7 6           J 8                 9 3 2 
8 4 3 2             Q J 9 7 5           K 6                 A T 
K 7                 A 6                 Q T 4 2             J 9 8 5 3 
K 7 4 3             5                   J T 9 6 2           A Q 8 

  50.
2                   J 8                 A K Q 6 5 4 3       T 9 7 
Q J 4               K T 7 6 3           A 9                 8 5 2 
Q 9 6               K                   A T 8 5             J 7 4 3 2 
Q T 8 5 3 2         A K 9 7 6           -                   J 4 

  51.
K Q 8 6 3           A 9 2               7                   J T 5 4 
3                   A K Q J 6           T 8 5 4             9 7 2 
A                   Q 8                 K T 9 7 3 2         J 6 5 4 
Q J 8 7 5 2         T 9 6               K 3                 A 4 

  52.
A Q                 J 9 7               8 6 4 2             K T 5 3 
Q T 6 5 3           A K J 9 4           7 2                 8 
K J                 Q T 2               8 7                 A 9 6 5 4 3 
9 6 5 3             J T                 A K Q 7 2           8 4 

  53.
Q 7 4               -                   T 9 6 5 3 2         A K J 8 
Q T 9 8             A 6 5               J 4                 K 7 3 2 
Q T 5               J 9 8 7 3 2         A 6 4               K 
A 6 3               J 9 8 5             K 4                 Q T 7 2 

  54.
6 4 2               K Q T 7 5 3         8                   A J 9 
Q 6                 A 9                 8 7 4 3             K J T 5 2 
A 8 5 2             6 3                 K Q J 9             T 7 4 
A Q 9 3             K J 7               T 6 4 2             8 5 

  55.
J T 5               A K 8               -                   Q 9 7 6 4 3 2 
T 7 5 3             K J 8               A Q 9 6 4 2         - 
A J T 5             4                   Q 8 6 3             K 9 7 2 
T 9                 A K Q J 4 2         7 6 5               8 3 

  56.
T 6 5               8 7 3 2             J 9 4               A K Q 
J 9 8 6 5 2         A Q T 3             K                   7 4 
5 4                 J 7 6               A T 8 3 2           K Q 9 
Q 6                 8 2                 K J T 5             A 9 7 4 3 

  57.
A 9 7 6             K 8 2               J 5 4               Q T 3 
J 9 8 2             Q T 7 6             K 4 3               A 5 
5 3 2               J 9 7 6             A T 4               K Q 8 
J 4                 K 2                 A 7 5 3             Q T 9 8 6 

  58.
7 6 4               A Q T 9 5 2         J 8 3               K 
K 8 6               Q J 9 7             A T 4 3 2           5 
K J 9 7             T                   A 5 2               Q 8 6 4 3 
A Q 3               T 6                 J 4                 K 9 8 7 5 2 

  59.
T                   K Q 9 8 4           J 7 6 2             A 5 3 
Q 8 7 5 3           K 2                 J 9 6               A T 4 
A K 7 6 5           Q J 8 2             T                   9 4 3 
T 9                 6 4                 Q 8 5 3 2           A K J 7 

  60.
2                   A K J 4             7 5 3               Q T 9 8 6 
J 8 6 3             Q                   A K T 9 7 5 2       4 
A Q 9 5             K 4 3               J 8                 T 7 6 2 
K T 6 3             A J 8 4 2           7                   Q 9 5 

  61.
A J 9 2             8 6 5               Q T                 K 7 4 3 
A 7 3               K 9 5 4             Q J 8 6 2           T 
T 5 4               K 8 6 3             A 9 7               Q J 2 
J 7 6               K 2                 T 9 4               A Q 8 5 3 

  62.
K J T 8 7 4         Q 2                 A 9                 6 5 3 
A Q                 J 6 3 2             K 9 8 4             T 7 5 
3                   Q 7 6               A J 5               K T 9 8 4 2 
A K 5 2             J 8 4 3             Q T 9 7             6 

  63.
J 6 3 2             A T 7 4             K 8                 Q 9 5 
Q 6                 A K 8 5             T                   J 9 7 4 3 2 
K J 4               A 9 6               Q T 8 7 3 2         5 
8 7 3 2             T 6                 A Q 9 4             K J 5 

  64.
Q 8 7 5             T 6 4               A K J 9             3 2 
6 3 2               K T 9 5             A Q 4               J 8 7 
A 9 4               K 7 2               Q 6 5               J T 8 3 
K 8 6               Q J 5               T 4 3               A 9 7 2 

  65.
Q J 7 4             T 2                 A K 6               9 8 5 3 
5 4                 J 3 2               A K 8 6             Q T 9 7 
7 3 2               A K Q 8 5 4         J T 6               9 
A T 6 3             J 7                 9 8 5               K Q 4 2 

  66.
Q 4 2               9 5 3               K J 7 6             A T 8 
9 8 3               K 5 2               A Q 7               J T 6 4 
K J 9 8 2           6 5 4               A T                 Q 7 3 
Q 8                 T 6 5 4             K J 9 2             A 7 3 

  67.
A J 8               9 7 5 4             K Q 6 2             T 3 
J 9 2               T 7                 A K Q 5 4 3         8 6 
J T 9               K 8 6 5 2           7                   A Q 4 3 
8 6 5 2             9 7                 A 3                 K Q J T 4 

  68.
K 9 5 3             A 7 6               Q J T 8 2           4 
K J T 9             Q 6 5               8 7 4 2             A 3 
9 3                 A 5 2               J 7                 K Q T 8 6 4 
T 8 6               A K 7 3             J 2                 Q 9 5 4 

  69.
4 3                 A J T 9 8 7 6 2     K Q                 5 
K J 6               Q                   A 9 8 5 4           T 7 3 2 
K Q J T 7 6         3                   8 5 4               A 9 2 
J 3                 K T 2               A Q 5               9 8 7 6 4 

  70.
A 7 4 3             K T 9 6 2           J                   Q 8 5 
A 4                 K Q 7 6             J T 9 5             8 3 2 
9 3 2               J 5                 A T 8 7             K Q 6 4 
J 9 3 2             A T                 Q 7 6 5             K 8 4 

  71.
9 2                 Q T 8 4             K 7 5 3             A J 6 
4 3                 A 8 6 2             T 7 5               K Q J 9 
A T 8 6 2           Q                   9 7 3               K J 5 4 
J 8 7 3             T 9 5 2             K 6 4               A Q 

  72.
J 9 4 3             Q T 6               A 8 5               K 7 2 
T 6 5               A K 9 8             Q 7 2               J 4 3 
A Q J 3             8 5 4               T 9 7               K 6 2 
9 3                 A 8 7               K J 6 5             Q T 4 2 

  73.
Q 9                 K 7 5               A 8 6 4             J T 3 2 
Q 9 3               K T                 8 7                 A J 6 5 4 2 
9 8 6 2             7 5 4               Q T 3               A K J 
9 8 3 2             A K 7 6 4           Q J T 5             - 

  74.
Q T                 A K J 6 2           9                   8 7 5 4 3 
A T 9 5             -                   K J 8 6 3 2         Q 7 4 
A 9 7 4             Q J 6 3             K T 5 2             8 
8 4 2               A K Q 6             7 3                 J T 9 5 

  75.
Q 8 4 3             A J 7 2             T 9 6               K 5 
Q 9 5 4             8 7                 J 3 2               A K T 6 
9 8                 J T 3 2             A K Q 4             7 6 5 
A K J               Q 5 3               T 6 2               9 8 7 4 

  76.
9 7 4 3 2           Q 6                 A K T 5             J 8 
8 2                 K Q 4 3             T 9 7 6             A J 5 
T 7 4               K Q 5               A                   J 9 8 6 3 2 
K 9 3               Q T 8 7             A J 4 2             6 5 

  77.
Q 9 3 2             A K J T 7           8 5                 6 4 
Q T 5               A 9 4               K 8 7 2             J 6 3 
A 9 5 4             Q J 6               8 7 2               K T 3 
5 2                 6 4                 A Q J 8             K T 9 7 3 

  78.
T                   A K J 9 8 5         Q 7 4 3 2           6 
5 2                 A                   Q J 8 6 4           K T 9 7 3 
K J 9 5 3           8 4 2               -                   A Q T 7 6 
J T 9 5 4           K 8 6               A 3 2               Q 7 

  79.
4                   K Q 9 6 5 3         A 8 7               J T 2 
A Q 8 2             3                   9 5                 K J T 7 6 4 
8 7 2               A J                 K Q T 6 4 3         9 5 
A K 8 6 5           T 9 4 3             Q 2                 J 7 

  80.
K 8 3               J 7                 A T 6 2             Q 9 5 4 
K T 5               J                   A Q 6 4             9 8 7 3 2 
J 8 3               A K T 9 7 4         5                   Q 6 2 
Q 8 6 4             A J 5 3             K T 9 2             7 

  81.
Q J 9 7 6 2         A K 4 3             5                   T 8 
Q                   J 5 2               8 7 6               A K T 9 4 3 
A 9                 Q J 5 4 3           K 8 7 6             T 2 
A K 5 4             2                   Q J 9 7 3           T 8 6 

  82.
A 9                 Q 6 3               8 5 4 2             K J T 7 
T 9 4 2             A K Q J 7           5 3                 8 6 
A J 7 4             9                   8 6 5 3             K Q T 2 
A 7 2               J 9 8 3             T 6 4               K Q 5 

  83.
Q 6 3               9 8 7               J 5 4 2             A K T 
A K                 T 3 2               Q 9 8               J 7 6 5 4 
A Q 5 4             T 2                 K J 7 3             9 8 6 
A Q 7 6             K J T 3 2           9 4                 8 5 

  84.
J 6 4               K Q 2               A 8 3               T 9 7 5 
K 4 2               J 9 3               A T 8 6 5           Q 7 
Q 7 6               K T 9 8             2                   A J 5 4 3 
T 9 6 3             K J 7               Q 5 4 2             A 8 

  85.
Q 8                 J T 3               A K 7 6 2           9 5 4 
6 5                 K J 2               T 9 8 4             A Q 7 3 
J T 8 4 2           A 6 5 3             K 7                 Q 9 
K 8 4 2             7 6 5               A 3                 Q J T 9 

  86.
J 6 4 2             A 8                 K Q 9 5             T 7 3 
A Q 9 7             T 4 2               J 8                 K 6 5 3 
T 9 5 3             A K Q 8 2           7                   J 6 4 
7                   J 6 4               A K Q 9 8 5         T 3 2 

  87.
Q 9 8 6 4 3 2       K J T 7             -                   A 5 
A 2                 K Q 8 7 6 5         J 9                 T 4 3 
2                   Q                   A J T 8 6           K 9 7 5 4 3 
Q 7 6               A J                 T 9 5 4 3 2         K 8 

  88.
Q                   K J T 9 5           A 6 4 3 2           8 7 
Q 7 6 2             A 8                 J T 5               K 9 4 3 
K T 9 7 6           J 3                 Q 8 5               A 4 2 
K J 7               A 9 3 2             6 5                 Q T 8 4 

  89.
A K T 3             5 4                 Q J 8 6             9 7 2 
Q 6                 J 9 5 2             A K T 8 3           7 4 
7 3                 A J 5               K Q 2               T 9 8 6 4 
K T 7 6 4           8 5 3 2             Q                   A J 9 

  90.
K Q 4 3             J T 7 6             A 9 8 2             5 
J 7 5               Q 9 6 2             A T 4 3             K 8 
Q T                 A                   9 3 2               K J 8 7 6 5 4 
K 8 7 2             Q 9 5 3             A T                 J 6 4 

  91.
K                   A 8 5 3             4 2                 Q J T 9 7 6 
7 4                 A K                 J 9 6 2             Q T 8 5 3 
A Q T 8             7 5 4               K J 9 6 2           3 
A K J 6 5 3         Q T 8 7             4 2                 9 

  92.
A 8                 K Q 4               9 6                 J T 7 5 3 2 
A 9 6 3             K T 8 4 2           Q J                 7 5 
A Q                 K T 4 3             8 7 6 5 2           J 9 
Q J 6 5 2           8                   K T 9 7             A 4 3 

  93.
J T 9 5             7 3                 8 6 2               A K Q 4 
K 2                 Q T 9 8 6 3         5                   A J 7 4 
Q J T 9 4           6 3                 8 7 5               A K 2 
A 6                 K 9 8               Q J T 7 3 2         5 4 

  94.
A T 5               J 6                 9 8 7 4 3           K Q 2 
9 8 5               A K 6 4 3 2         J                   Q T 7 
K 5                 9 3                 Q 7 6 4 2           A J T 8 
A J 8 7 4           T 9 3               Q 2                 K 6 5 

  95.
K 7 6               J 8 4               3                   A Q T 9 5 2 
8 6 5 4             A 9 7 3             K Q J T             2 
9 4                 K 6 5 3             Q T 8 7 2           A J 
9 4 3 2             T 5                 J 7 6               A K Q 8 

  96.
A J 6 4             K T                 9 8 2               Q 7 5 3 
A 7 6 3             K T 9 5             J 8                 Q 4 2 
K 8                 T 9 6 4             A 7                 Q J 5 3 2 
Q 4 2               A J 8               K T 9 7 6 5         3 

  97.
4 3                 A 8 7 6             K Q T 2             J 9 5 
K 6 2               T 9 5 4             Q 3                 A J 8 7 
T 6 4               A Q J 9             K 8 5 3 2           7 
A K Q J 2           5                   T 8                 9 7 6 4 3 

  98.
8 7 5 2             J T                 K 9                 A Q 6 4 3 
K Q                 7 6 4               A J 5 3 2           T 9 8 
T 9 8 6             K J 5 4             A Q 7 2             3 
A K 8               Q J T 3             9 2                 7 6 5 4 

  99.
A 9                 6 5                 Q J 4               K T 8 7 3 2 
K J 9               Q 7 5 4             A 8 3               T 6 2 
T 8 7               A Q J 2             K 9 4               6 5 3 
K Q T 9 4           A 7 5               J 8 6 3             2 

 100.
J 9                 K T 2               Q 8 7 5             A 6 4 3 
Q T 8 3             A J 9 6             K 5 4               7 2 
A T 9 6 5           Q J 3               K 2                 8 7 4 
8 2                 T 4 3               A K J 5             Q 9 7 6 

 101.
A T 8 7 6 4 2       K 9                 Q 3                 J 5 
9 3                 K J T 7 6           A 2                 Q 8 5 4 
8 7 6               A J 9               5 4                 K Q T 3 2 
2                   K Q 8               A T 9 7 6 5 4       J 3 

 102.
K 9 5 3             8 7                 A Q 4               J T 6 2 
A K T 9 5 3         8 2                 J 7 4               Q 6 
Q 2                 K J T 6             A 9 5 3             8 7 4 
3                   T 9 5 4 2           A K 8               Q J 7 6 

 103.
Q T 8               K 7 5 4 2           A J                 9 6 3 
A 7 4               Q 9 6               5 3                 K J T 8 2 
K 9 7 5             4 2                 Q J T 6 3           A 8 
Q 4 3               T 8 5               A K J 2             9 7 6 

 104.
Q J 5               T 6 3               9 7                 A K 8 4 2 
A J 9               T 8 6 2             Q 7 5 4 3           K 
Q T 9 5             A K 8 7 4           6 3                 J 2 
T 8 2               9                   Q 7 4 3             A K J 6 5 

 105.
8 2                 K                   A 9 7 5 3           Q J T 6 4 
J 7                 K 6 5 4 2           Q T 9 8 3           A 
A K J T 6           -                   4 3                 Q 9 8 7 5 2 
A K J 8             Q T 9 7 5 4 2       3                   6 

 106.
9 4 3 2             A J 8 5             K T 7               Q 6 
K T 3 2             9 7 6 4             A 8                 Q J 5 
K 6 4               9 7 5 3 2           Q T                 A J 8 
8 7                 -                   K Q T 6 5 2         A J 9 4 3 

 107.
Q 4                 K J T 9             7                   A 8 6 5 3 2 
K T 8 7             A Q J               6 5 4               9 3 2 
T 3                 A K Q 5             J 9 8               7 6 4 2 
K T 7 6 5           Q 3                 A J 9 8 4 2         - 

 108.
9 6                 J 8 2               K Q 7               A T 5 4 3 
A Q J 8             -                   T 9 7 5 4           K 6 3 2 
Q 9 4               A 8 3               K J 5 2             T 7 6 
A K T 4             Q J 9 8 7 3 2       6                   5 

 109.
K 8                 A Q J T 9           7 6 5 4             3 2 
Q 5 4 3 2           7 6                 A K 8               J T 9 
J 7 3               5 2                 A Q T               K 9 8 6 4 
T 5 3               Q 9 7 2             K 8 4               A J 6 

 110.
T 6                 9 4 3               Q J 8 5             A K 7 2 
9 8 6 5             T 7                 A Q 2               K J 4 3 
Q 9 5 2             J 4 3               A K T 7             8 6 
4 3 2               K Q J T 9           8 7                 A 6 5 

 111.
5                   9 8                 K J T 4 3           A Q 7 6 2 
K 3 2               T 8 7 5 4           J                   A Q 9 6 
Q 8 5 2             K T 9 3             A J 7 6 4           - 
A K Q 5 3           6 4                 8 7                 J T 9 2 

 112.
8 6 2               T 7 4 3             A J 9 5             K Q 
T 2                 A 3                 K J 9 8 5 4         Q 7 6 
T 9 8 7 5 3         Q J 2               A                   K 6 4 
K 6                 J T 7 3             A 8                 Q 9 5 4 2 

 113.
4 2                 K Q 8 6 5           J 7 3               A T 9 
J T 2               9 8 5               4 3                 A K Q 7 6 
K 9 8 4 2           Q J T 3             7 6                 A 5 
A K Q               7                   J T 8 5 4 2         9 6 3 

 114.
K Q 7 4             J 8 6 3 2           5                   A T 9 
A Q T 3             J 7                 6 5 4               K 9 8 2 
A K 8 3             J 7 5 2             9 6                 Q T 4 
A                   Q 3                 K T 9 7 6 5 4       J 8 2 

 115.
K 2                 J T 7 6 3           Q 5 4               A 9 8 
A K 7 6 3           9                   Q 5 4 2             J T 8 
J T 9 8 5           6 3                 A K 2               Q 7 4 
3                   A Q J 7 6           9 5 4               K T 8 2 

 116.
9 5                 T 8 7 3             J 6 4 2             A K Q 
K 7 5               A J 9 6 3           8 2                 Q T 4 
A J T 9 5           K                   8 7 6               Q 4 3 2 
A 8 6               7 4 2               K J 9 5             Q T 3 

 117.
Q T 8 7 5           J 4                 9 6 3               A K 2 
Q 7                 9 3 2               K T 6               A J 8 5 4 
K 9                 A Q 8 6 5 3         T 7 2               J 4 
A T 9 4             8 3                 K Q 6 2             J 7 5 

 118.
Q T 5               9 3                 J 4 2               A K 8 7 6 
Q                   A J T 8 5           K 7 2               9 6 4 3 
A T 8 5 4 3         K J 9               Q 6 2               7 
Q T 9               8 7 2               K 5 4 3             A J 6 

 119.
A 5 2               4                   J T 9 8 3           K Q 7 6 
A 5 2               Q J T 8 4 3         7                   K 9 6 
T 9 7 2             K Q 6 5 3           J 4                 A 8 
A 9 6               2                   J 7 5 4 3           K Q T 8 

 120.
4                   A T 2               Q 9 3               K J 8 7 6 5 
K Q J               8 4                 A T 7 6 5 2         9 3 
K Q 2               J 6 3               T 9 4               A 8 7 5 
K Q 8 4 3 2         A J 9 7 6           5                   T 

 121.
T 5 3               K 7 2               Q 8                 A J 9 6 4 
K 4 2               Q J 5               8 7 6 3             A T 9 
J 3                 9 6                 A Q T 5 2           K 8 7 4 
K Q T 9 6           8 7 5 3 2           J 4                 A 

 122.
K 4                 T 8 6               J 3 2               A Q 9 7 5 
J 6 5 2             Q 9 8 3             K T 4               A 7 
K Q T 9 8 4         -                   7 6 3 2             A J 5 
5                   Q 9 8 7 3 2         A T 4               K J 6 

 123.
T 8                 Q 2                 J 5 3               A K 9 7 6 4 
J T 7 5 2           4                   A K 9 8 3           Q 6 
A T 2               J 9 8 6 5           3                   K Q 7 4 
T 3 2               A K Q J 6           9 7 5 4             8 

 124.
T 4 2               Q 9                 K 7 3               A J 8 6 5 
K J 7 3             A Q T               8 5 4 2             9 6 
Q 9 6               A K J 8 7           3                   T 5 4 2 
K Q 2               J 9 7               A T 8 6 4           5 3 

 125.
T 3                 Q 9 5 4             K 8 7               A J 6 2 
8 5 4 2             K Q 9 3             A J T 7             6 
Q 2                 6 4 3               J T 9 8             A K 7 5 
K Q T 7 4           9 8                 5 2                 A J 6 3 

 126.
Q J 4 3             A K 8 5             9 6 2               T 7 
A 7 5               Q J T 8 3           9                   K 6 4 2 
A K T 8 3           Q J 5               7 4 2               9 6 
J                   8                   A 9 6 5 4 3         K Q T 7 2 

 127.
J 6 5               Q T 8               A 7                 K 9 4 3 2 
4                   Q 5                 A K J 9 7 3         T 8 6 2 
K 9 8 5 4           A J 6 3 2           -                   Q T 7 
A 7 6 3             Q 9 2               K J T 5 4           8 

 128.
Q T 3 2             A 7 5               K 9 6 4             J 8 
J 7                 Q T 9 8             A 3                 K 6 5 4 2 
A                   9 7 6               K Q J 8             T 5 4 3 2 
K Q J T 5 2         A 9 8               7 6 4               3 

Generated 128 hands
Produced 128 hands
Initial random seed 1707065653
Time needed    0.005 sec

(E.g. imagine sitting NS with each combination of dealer and vulnerability occuring eight times.)

DavidKok, on 2024-January-29, 05:10, said:

If you want to explore other systems I ask you to please start your own post.

Done.

[awm]

The example hands seem to include a lot where no one has 12-14 balanced, which I suspect would be the interesting case.

If the opponents pass, I think this approach will work out fine (quite likely better than opening 12-14 balanced); the problem is when opponents jump into the auction (especially with a preempt). For example if the auction goes Pass-(2♠) and you have some 2434 eleven-count, it is not super-appealing to double (you could easily get killed if partner has nothing) but if you pass and partner has 12-14 balanced you are definitely missing out on a playable partial (if not a 4♥ game). Obviously you would face the same problem if you were in second seat, but of course you weren't and opponents at the other table (who presumably do not pass on 12-14 balanced) will not face this difficulty.

[nullve]

awm, on 2024-February-05, 08:07, said:

The example hands seem to include a lot where no one has 12-14 balanced, which I suspect would be the interesting case.

The P and 1x "openings" in all seats as well as preempts in 3rd/4th are all affected because inferences from the auction (e.g. on defense) can be different.

awm, on 2024-February-05, 08:07, said:

For example if the auction goes Pass-(2♠) and you have some 2434 eleven-count, it is not super-appealing to double (you could easily get killed if partner has nothing) but if you pass and partner has 12-14 balanced you are definitely missing out on a playable partial (if not a 4♥ game).

Yes, I've seen something like that happen a few times.