43rd Oi Match Game 1

Black: Habu Yoshiharu, Oi
White: Tanigawa Koji, Challenger
43rd Oi-sen, Game 1, July 12th and 13th 2002
1.P2g-2f     00:01:00  00:00:00
2.P3c-3d     00:01:00  00:08:00
3.P7g-7f     00:02:00  00:08:00
4.P5c-5d     00:02:00  00:13:00

The Kondo-style Gokigen Nakabisha is going through a remarkable revival 
recently. Five years ago, Kondo Masakazu (5-dan) had great success with 
it, reaching the quarterfinals of the Ryu-O challenger tournament where 
it took the likes of Sato Yasumitsu to stop his run. However, after that 
it seemed like his opponents adapted to this quick attacking system and 
Kondo's results became less impressive. Five years later, he is still 
struggling in C2 and has had only anonymous performances in the other 
tournaments. Still, he stubbornly stuck to his own system (I have never 
seen him play anything else), which I thought was a waste. Being a 
predictable, one-dimensional player is definitely a problem in modern 
professional shogi where opening preparation has become almost as 
important as in chess. However, last year everything suddenly changed 
for Kondo. Other professionals started to take a closer look at his 
system and it now seems more popular even than the Chuza Yokofudori 
(I have no data to back this up yet). It is not surprising that players 
like Suzuki and Kubo play this system as they play every ranging 
rook game with attack in mind. However, the Kondo-style Gokigen 
Nakabisha has also been played by Meijin Moriuchi and Sato Yasumitsu. 
Tanigawa joins the crowd in this game and this must have taken Habu 
completely by surprise as he took 51 minutes for his next move.

5.P2f-2e     00:53:00  00:13:00
6.R8b-5b     00:53:00  00:15:00
7.G4i-5h     00:56:00  00:15:00

Diagram 1

The main line these days is 7.G7h. The difference will become clear 
very soon. We are only 7 moves into the game, but with this extremely 
sharp move Habu makes clear that he will not back out of an early fight.

8.P5d-5e     00:56:00  01:27:00

After the game Tanigawa admitted that he put most of his homework in 
the position after G7h.

9.P2e-2d     02:18:00  01:27:00
10.P2cx2d    02:18:00  03:06:00
11.R2hx2d    02:18:00  03:06:00
12.P5e-5f    02:18:00  03:06:00
13.P5gx5f    02:38:00  03:06:00
14.B2bx8h+   02:38:00  03:16:00
15.S7ix8h    02:39:00  03:16:00
16.B*3c      02:39:00  03:16:00

The difference between 7.G4i-5h and 7.G7h. With the gold on 7h, this 
would not be a fork on rook and silver. It is difficult to say if G7h 
is really better than G4i-5h as there are so many sharp variations. 
However, from this game it seems that black is the side that has to 
fight to stay in the game, which is not a good sign.

17.R2dx2a+   02:58:00  03:16:00
18.B3cx8h+   02:58:00  03:16:00
19.N*5e      02:58:00  03:16:00
20.K5a-6b    02:58:00  03:22:00
21.+R2ax1a   02:58:00  03:22:00
22.+B8hx9i   02:58:00  03:43:00
23.L*6f      04:03:00  03:43:00

The sealed move. It must be very rare that a whole day of play ends 
with only 23 moves being played.

24.S*5d      04:03:00  03:48:00

Diagram 2

25.B*2c?     04:24:00  03:48:00

Better seems 25.P*2b. After 26.L*5c! (a move found by Suzuki Daisuke) 
B*3f S7b P2a+ Sx5e Px5e Lx5e +Px3a Lx5h+ Gx5h P*5g P*5d Px5h+ Kx5h 
N*7d white has the advantage, but Habu was not convinced that this 
was conclusive variation and said after the game that he should have 
tried 25.P*2b instead of 25.B*2c.

26.G6a-5a    04:24:00  05:09:00
27.B2cx3d+   04:40:00  05:09:00
28.S3a-4b    04:40:00  05:10:00
29.P*2c      05:35:00  05:10:00
30.K6b-7b    05:35:00  05:50:00
31.P2c-2b+   05:36:00  05:50:00
32.L*6a!     05:36:00  05:52:00

Diagram 3

As Tsukada (9-dan) pointed out, 30.K7b is a move that most professionals 
would have played. Moving the king away from danger followed by defending 
the pawn on 6c with S6b next is a natural way to strengthen the position 
and this position was analysed at length in the press room. To 
everyone's surprise, Tanigawa played 32.L*6a. This move not only 
defends 6c, but also aims at the counterattack P6d-P6e. However, 
dropping this lance in defence takes a lot of courage. The counterattack 
along the 6th file takes quite a lot of moves and it is far from clear 
that the white attack will be in time. Tanigawa has all judged it 
perfectly. 

33.P*2d      06:11:00  05:52:00
34.P6c-6d    06:11:00  05:57:00
35.P2d-2c+   06:16:00  05:57:00

After the game, Habu regretted his confidence in the attack with the 
two promoted pawns. It looks strong, but it turns out that it is 
difficult to get two tokins moving towards the white king.

36.P*3a      06:16:00  06:12:00
37.+P2c-3c   07:15:00  06:12:00
38.P6d-6e    07:15:00  06:12:00
39.+P2bx3a?  07:16:00  06:12:00

Diagram 4

Better was 39.Lx6e but after 40.Lx6e +Px4c S5dx4c Nx4c+ Sx4c +Bx4c 
L*6a S*5c P*5g Gx5g Lx6g+ Gx6g Lx6g+ it looks like black's attack 
isn't strong enough. The promoted bishop on 9i is very powerful and 
the black promoted rook on 1a isn't working at all.

40.S4bx3a    07:16:00  06:17:00
41.+P3cx4c   07:17:00  06:17:00
42.R5b-6b    07:17:00  06:17:00
43.+P4c-5c   07:21:00  06:17:00
44.R6b-3b    07:21:00  06:19:00
45.+B3d-4d   07:27:00  06:19:00
46.S5dx5e    07:27:00  06:19:00
47.+B4dx5e   07:27:00  06:19:00
48.P6ex6f    07:27:00  06:19:00
49.P6gx6f    07:30:00  06:19:00
50.K7b-8b    07:30:00  06:19:00

This move made Habu lose his will to fight. The white king is too far 
to set up a decent attack. Tsukada still thought things were far from 
easy though...

51.+R1a-2a?  07:32:00  06:19:00

According to Tsukada, a better fighting chance was 51.+Rx1c +Bx6f +Bx6f 
Lx6f P*6g P*5g (Gx5g is then answered by B*3e). White is clearly better 
but the game is not over as quickly.

52.P*5b      07:32:00  06:42:00
53.+P5c-5d   07:33:00  06:42:00
54.R3b-2b!   07:33:00  06:42:00

Diagram 5

Great finish. It is not unlikely that this move took Habu by surprise.

55.+B5ex2b   07:43:00  06:42:00
56.S3ax2b    07:43:00  06:42:00
57.S*3b      07:43:00  06:42:00

Defends against G*3a. Black can't take the silver as 57.+Rx2b fails 
to 58.+Bx6f.

58.+B9ix6f   07:43:00  06:47:00
59.P*6b      07:45:00  06:47:00
60.+B6fx3i   07:45:00  06:54:00
61.P6bx6a+   07:45:00  06:54:00
62.S*5g      07:45:00  06:55:00
63.G5hx5g    07:45:00  06:55:00
64.+B3ix5g   07:45:00  06:56:00
65.S*4h      07:51:00  06:56:00
66.+B5g-6g   07:51:00  07:02:00
67.G6i-6h    07:51:00  07:02:00

Or 67.G5h N*6f and white wins.

68.G*4i      07:51:00  07:03:00
Resigns      07:51:00  07:03:00

Final Diagram

Not mate, but black is left without defence after 69.K6i L*6f Gx6g Lx6g+. 
A very important win for Tanigawa for a number of reasons. First of all, 
winning with white against an opponent he has great problems with is a 
great start in an attempt to end a title drought of more than a year. 
Furthermore, this was Tanigawa's 1000th victory as a professional. He 
is only the 7th player in history to reach this milestone. At 40 years 
and 3 months he is the youngest player to get 1000 wins (beating 
Nakahara's previous record of 44 years and 4 months) and he is also 
the player who took the shortest time from his professional debut with 
25 years and 6 months (just beating Nakahara with 26 years and 3 months). 
After the game Tanigawa was a relieved man, as he lost two games in a 
row at 999 wins, making life for the anticipating crowd of journalist 
quite difficult. Of course all the records will be broken by Habu in a 
couple of years (Habu has now 759 wins), but with having this extra 
pressure out of the way, Tanigawa can play a little more freely to try 
and take the Oi title from his nemesis.