| Quest of the lost systems |
|
|
| Chapter Four: Aigakari |
| Section 2: Tsukata Special |
Tsukata Special (3)
9 8 7 6 5 4 3 2 1
+--------------------------------------------+ White in hand:
| wL | wN | | wG | wK | | wS | wN | wL | a +------------------+
+--------------------------------------------+ | 2Ps |
| | | | | | | wG | wB | | b | |
+--------------------------------------------+ +------------------+
| wP | | wP | wS | wP | wP | wP | | | c
+--------------------------------------------+
| | | | wP | | | | bR | WP | d
+--------------------------------------------+
| | | | | | | | | | e
+--------------------------------------------+
| | wR | bP | | | | | | bP | f
+--------------------------------------------+
| bP | | | bP | bP | bP | bP | | | g
+--------------------------------------------+ Black in hand:
| | bB | bG | | | | bS | | | h +------------------+
+--------------------------------------------+ | 2Ps |
| bL | bN | bS | | bK | bG | | bN | bL | i | |
+--------------------------------------------+ +------------------+
Diagram 3. Tsukata(b) vs Tosa(w), S-6c
Diagram 3 shows an aspect from the NHK tournament game played by Tsukata(b)
and Tosa(w) on June 30, 1986, which happens to be a variation of the aforementioned
game, where White chose S-6c instead of R-8b.
Moves from the diagram: (from black)
P-1e, P*2c; R-2e, Px1e; P*1d, R-8b; Rx1e, P-3d;
P*8g, P*1b; R-1f
The first file attack worked, which set the game in Black's favor. The
Tsukata Special thus made its grand entrance, which influenced not only
ibisha players but also furi-bisha players. It also became a target, to
which many players devised their own counter-attacks. Tsukata himself didn't
consider it good enough to become a regular strategy, and vaguely anticipated
some countermeasure would come up after a time.
The points under scrutiny then were:
- Which is better, S-6b or S-6c?
- When is the optimum timing for pushing up the far-wing Pawn?
- Should K-4b be made before P-6d? etc.
Tsukata, however, turned out to be a tough opponent to those would-be
assassins. He gradually improved his system by making adjustment each time
he was challenged. At the same time, other players began to try the system
for themselves. When Akira Shima used it with black, Tsukata had to play
against his own system.
