Chapter 3 Kaku-Kawari (Bishop Exchange Opening)

SECTION 2 Kaku-kawari Bo-Gin
Moriuchi-Habu Game

Moves from the beginning:
Black: MORIUCHI
White: HABU

1.P-2f P-8d 2.P-2e P-8e
3.P-7f G-3b 4.B-7g P-3d
5.S-8h Bx7g+ 6.Sx7g S-2b
7.G-7h S-3c 8.S-3h S-7b
9.S-2g P-7d 10.S-2f S-7c
11.S-1e B*5d 12.B*3h P-4d
13.P-2d Px2d 14.Sx2d Sx2d
15.Rx2d G-3c 16.R-2e S*2d
17.R-2h R-2b 18.S-6f S-2e
19.S-5e B-4c 20.P-4f P-5d
21.S*5c!! (Diagram 7)

White: HABU
White in hand: P 
  9  8  7  6  5  4  3  2  1
+---------------------------+
|wL wN  * wG wK  *  * wN wL |a
| *  *  *  *  *  *  * wR  * |b
|wP  * wS wP bS wB wG  * wP |c
| *  * wP  * wP wP wP  *  * |d
| * wP  *  * bS  *  * wS  * |e
| *  * bP  *  * bP  *  *  * |f
|bP bP  * bP bP  * bP  * bP |g
| *  * bG  *  *  * bB bR  * |h
|bL bN  *  * bK bG  * bN bL |i
+---------------------------+
Black: MORIUCHI
Black in hand: P 
Diagram 7. Up to 21. S*5c.
The game was played by Moriuchi and Habu in 1988, as the final of Haya-zashi Shin-ei-sen(a quick-game tournament for younger players sponsored by TV Tokyo).

Right after the S-2e in question, Black played S-5e then P-4f, which I would like to call nice and lively moves. Habu wanted the Silver back off, but he couldn't.

The Silver drop on 5c was brilliant. If White plays Px5e, then Black will play Rx2e. See for yourself that White cannot play Rx2e, which will enable Black to play S*4b.

So, the idea of stopping the Rook temporarily on 2e was going to put a period to it, almost. Then a move was played, beguilingly commonplace but effective. And it urged reconsideration of the whole idea.

Diagram 8 is from the game played by (b)Kenji Waki and (w)Shuichi Ono, in B2 Jun-I-sen on Feb. 2, 1990. After Black's R-2e, Ono played P*2d, Columbus' egg!

White: ONO
White in hand: S 
  9  8  7  6  5  4  3  2  1
+---------------------------+
|wL wN  * wG wK  *  * wN wL |a
| * wR  *  *  *  *  *  *  * |b
|wP  * wS wP wP  * wG  * wP |c
| *  * wP  * wB wP wP wP  * |d
| * wP  *  *  *  *  * bR  * |e
| *  * bP  *  *  *  *  *  * |f
|bP bP bS bP bP bP bP  * bP |g
| *  * bG  *  *  * bB  *  * |h
|bL bN  *  * bK bG  * bN bL |i
+---------------------------+
Black: WAKI
Black in hand: S P 
Diagram 8. Up to P*2d
Moves from Diagram 8:
R-2h R-2b;
P*2f P-4e
You might say, why didn't anybody else think of this move? After chasing the Rook back to 2h, White will play p-2e. So, Black has no other choice but to play P*2f, to which White can play P-4e thereby checking Black's Bishop. At this point, White has nothing to complain about.

There followed:
S-6f S-6d;
S*5e Sx5e;
Sx5e Bx7f;

The position is even here, but Ono played well after this and won the game. And this was a big win for Ono. He got himself a ticket to the B-1 class through this victory.

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