From: Takako Noda <mxc06231 <at> JA2 <dot> SO-NET <dot> OR <dot> JP>
Date: 11 mar 1997
Subject: Tsukata Special (9)

Tsukata Special (9)

   9    8    7    6    5    4    3    2    1
+--------------------------------------------+       Maruyama in hand:
| wL | wN |    | wG |    | wK |    | wN | wL |  a   +------------------+
+--------------------------------------------+      | P                |
|    |    | wS |    |    | wS | wG | wB |    |  b   |                  |
+--------------------------------------------+      +------------------+
|    |    | wP |    | wP | wP | wP | wP |    |  c
+--------------------------------------------
| wP |    |    | wP |    |    |    |    | wP |  d
+--------------------------------------------+
|    |    |    |    |    |    |    |    |    |  e
+--------------------------------------------+
| bP | wR | bP |    |    |    |    | bR | bP |  f
+--------------------------------------------+
|    |    | bN | bP | bP | bP | bP |    |    |  g
+--------------------------------------------+      Habu in hand:
|    | bB | bG |    |    | bK | bS |    |    |  h   +------------------+
+--------------------------------------------+      |  2Ps             |
| bL |    | bS |    |    | bG |    | bN | bL |  i   |                  |
+--------------------------------------------+      +------------------
Diagram 9. Habu vs Maruyama, up to K-4a

Major moves prior to the diagram 9  were P-1f, P-1d followed by S-3h,
then P-7f after seeing White's P-6d. White chose its R to stay on 8f,
thus the diagram 9 is quite like the diagram 8.

The game was played by Yoshiharu Habu(b) and Tadahisa Maruyama(w) on
10th, Feb., 1992 (NHK TV tournament), which should be a good example to
prove the point I was about to refer to. The Tsukata Special inspired an
idea of parsimony of moves into the hineri-bisha opening. In this game,
the hineri-bisha side, Habu, opened fire at this moment.

Moves after the diagram: (from Black)
P*2d, Px2d;
Rx2d, ....

The idea is exactly that of the Tsukata Special: By P drop on 2d, Black
schemes of taking P on 6d. If White makes S-6c, Black attacks along the
first file, P-1e, Px1e, P*1c.

Moves afterwards: (from White)
....  P-3d;
P-1e, P*2c;
Rx3d, B-4d;
Px1d, S-3c;
R-3f, S-6c;
P-1c+, Nx1c;
P*2f, ....

The last move cited, P*2f is a calm, good one. At this point, Black is
dominant.

The recent trend is: Whatever moves Habu makes are accepted by other
players, and accredited as Joseki without fully analyzing them. To my
surprise, however, a quick attack P*2d did not always turn out
successful.
(TO BE CONTINUED)