The Kamikaze 1NT (aka "mini" no-trump) is a 1NT opening bid that shows a balanced hand with 10-12 HCP. Since it is such a weak opening bid, subject to frequent penalty doubles by the opponents, an escape system such as Meckwell Escapes
or Touching Escapes
is a necessary adjunct. In addition, it was originally intended to be played only in first or second position.
If integrating the Kamikaze notrump into your system, it is also important to consider its effect on natural sequences such as
|1 ||:|| 1 |
1NT here normally shows around 12-14 HCP, while 2NT would show around 18-19 HCP; the 15-17 HCP between the two rebids must be resolved in one way or another.
The Kamikaze 1NT was invented by American player John Kierein.