IMP/Precision/PowerPrecision/2Hについて、ここに記述してください。

1. 2H

Precision 2D, Flanary 2D を含むような手 https://www.bridgebum.com/flannery_2d.php

2H : 4414 or 4405, 12-15(poor 16) HCP OR 45xx, 12-15(poor 16) HCP

    P  :: sign-off      2S :: sign-off
    2N :: distribution-ask
          3C : 4414 or 4405 
          3D :: further-ask       
          3H : 4414, 12-13 HCP       3S : 4405, 12-13 HCP  3N : 4414, 14-16 HCP, stiff top honor
          4C : 4414, 14-16 HCP, no stiff top honor       
          4D : 4405, 14-16 HCP            {            3D : 4531 (three diamonds)            3H : 4522, 12-13 HCP            3S : 4513            3N : 4522, 14-16 HCP            4C : 4504 (four clubs)            4D : 4540 (four diamonds)            }     3M : sign-off     3N : to play                 {                 4m where m is long(3):: slam try in m                 4m where m is short  :: general slam try                 }         4H : sign-off     

   3C :: good 6+, game invite in NT or clubs
   3D :: 6+(3 of top 4), game invite in NT or diamonds
   3H :: trump strength-based invite in hearts 
   3S :: trump strength-based invite in s
   3N :: sign-off 
   4H :: sign-off      4S :: sign-off