53rd Oza Match Game 1

[Black "Sato Yasumitsu, Challenger"]
[White "Habu Yoshiharu, Oza"]
[Event "53rd Oza-sen, Game 1"]
[Date "September 1st 2005"]
1.P7g-7f     00:00:00  00:00:00
2.P3c-3d     00:00:00  00:01:00
3.P2g-2f     00:01:00  00:01:00
4.G4a-3b     00:01:00  00:02:00
5.G6i-7h     00:03:00  00:02:00
6.P4c-4d     00:03:00  00:05:00

Habu is not going to play the Kakugawari (with or without tempo loss), but aims 
for Yagura instead.

7.P2f-2e     00:08:00  00:05:00
8.B2b-3c     00:08:00  00:05:00
9.S3i-4h     00:08:00  00:05:00
10.G6a-5b    00:08:00  00:05:00
11.P5g-5f    00:12:00  00:05:00
12.S3a-2b    00:12:00  00:10:00
13.B8h-6f    00:14:00  00:10:00

Strange looking maneuver, but Sato wants to exchange the bishops and this is the 
only way to do it.

14.G5b-4c    00:14:00  00:11:00
15.B6f-5g    00:15:00  00:11:00
16.K5a-4a    00:15:00  00:11:00
17.P2e-2d    00:17:00  00:11:00
18.P2cx2d    00:17:00  00:11:00
19.B5gx2d    00:18:00  00:11:00
20.B3cx2d    00:18:00  00:11:00
21.R2hx2d    00:18:00  00:11:00
22.S2b-2c    00:18:00  00:12:00
23.R2d-2h    00:18:00  00:12:00
24.P*2d      00:18:00  00:12:00
25.S7i-6h    00:20:00  00:12:00
26.P5c-5d    00:20:00  00:13:00
27.K5i-6i    00:24:00  00:13:00
28.P1c-1d    00:24:00  00:13:00
29.K6i-7i    00:34:00  00:13:00
30.S7a-6b    00:34:00  00:14:00
31.G4i-5h    00:45:00  00:14:00
32.S6b-5c    00:45:00  00:16:00
33.P6g-6f    00:49:00  00:16:00
34.P1d-1e    00:49:00  00:40:00
35.G5h-6g    01:10:00  00:40:00
36.K4a-3a    01:10:00  00:49:00
37.K7i-8h    01:10:00  00:49:00
38.N2a-3c    01:10:00  00:54:00
39.P3g-3f    01:17:00  00:54:00
40.P4d-4e    01:17:00  01:23:00
41.S4h-3g    01:22:00  01:23:00
42.S5c-4d    01:22:00  01:25:00
43.S3g-2f    01:24:00  01:25:00
44.P8c-8d    01:24:00  01:39:00
45.N2i-3g    01:27:00  01:39:00
46.P8d-8e    01:27:00  01:53:00
47.S6h-7g    01:27:00  01:53:00
48.K3a-2b    01:27:00  01:56:00

Black has managed to exchange the bishops and also has exchanged the pawn in front of 
the rook. Therefore, the general opinion is that black has the better position, but 
the difference is only marginal. Black has a Yagura castle and the climbing silver 
attack, but white has the solid Silver Crown and has pushed the pawn to 1e, which 
makes the climbing silver a little less effective.

49.P9g-9f    01:31:00  01:56:00
50.P9c-9d    01:31:00  02:20:00
51.P*2e      03:51:00  02:20:00

Sato takes 2 hours and 20 minutes to weigh his options and decides to go for it. 
This may have been despite his better judgment, because afterwards he admitted that 
the long thought was because he was not sure that this was actually good.

52.P2dx2e    03:51:00  02:45:00
53.N3gx2e    03:51:00  02:45:00
54.P*2g      03:51:00  02:45:00
55.N2ex3c+   04:00:00  02:45:00
56.S4dx3c    04:00:00  02:47:00
57.R2h-3h    04:03:00  02:47:00
58.B*2i      04:03:00  03:00:00
59.R3h-4h    04:04:00  03:00:00
60.P2g-2h+   04:04:00  03:00:00
61.R4hx2h    04:04:00  03:00:00
62.B2ix4g+   04:04:00  03:00:00
63.P3f-3e    04:04:00  03:00:00
64.+B4g-4f   04:04:00  03:40:00
65.R2h-2i    04:08:00  03:40:00
66.+B4f-4g   04:08:00  03:41:00
67.R2i-2h    04:08:00  03:41:00
68.+B4g-4f   04:08:00  03:41:00
69.R2h-2i    04:08:00  03:41:00
70.+B4f-4g   04:08:00  03:41:00
71.R2i-2h    04:08:00  03:41:00
72.+B4g-4f   04:08:00  03:41:00
73.R2h-2i    04:08:00  03:41:00
74.+B4f-4g   04:08:00  03:41:00
75.R2i-2h    04:08:00  03:41:00
Sennichite   04:08:00  03:41:00

Sennichite

Sennichite can not be avoided. Because of the time difference and because he is 
black, Sato doesn't want the replay, but when he tries Px3d after +B4f, then 
+Bx2h Px3c+ G4c-3c N*2e +B6d! and the white promoted bishop is holding the 
position together. On the other hand, Habu is also not the type of player to 
take the easy way out with sennichite. This is shown by thinking 40 minutes 
about 64.+B4f. Px3d is too dangerous to avoid the repetition of moves.