51st Oi Match Game 6

[Black "Fukaura Koichi, Oi"]
[White "Hirose Akihito, Challenger"]
[Event "51st Oi-sen, Game 6"]
[Date "September 1st and 2nd 2010"]
1.P7g-7f     00:01:00  00:00:00
2.P3c-3d     00:01:00  00:01:00
3.P2g-2f     00:02:00  00:01:00
4.P4c-4d     00:02:00  00:04:00
5.S3i-4h     00:02:00  00:04:00
6.R8b-4b     00:02:00  00:05:00
7.K5i-6h     00:02:00  00:05:00
8.K5a-6b     00:02:00  00:06:00
9.K6h-7h     00:02:00  00:06:00
10.K6b-7b    00:02:00  00:06:00
11.P5g-5f    00:02:00  00:06:00
12.S3a-3b    00:02:00  00:07:00
13.B8h-7g    00:02:00  00:07:00
14.S3b-4c    00:02:00  00:07:00
15.S4h-5g    00:02:00  00:07:00
16.K7b-8b    00:02:00  00:17:00
17.K7h-8h    00:06:00  00:17:00
18.L9a-9b    00:06:00  00:20:00
19.P2f-2e    00:06:00  00:20:00
20.B2b-3c    00:06:00  00:20:00
21.L9i-9h    00:06:00  00:20:00
22.S4c-5d    00:06:00  00:24:00
23.S5g-6f    00:06:00  00:24:00
24.P6c-6d    00:06:00  00:24:00
25.G6i-7h    00:06:00  00:24:00
26.K8b-9a    00:06:00  00:31:00
27.K8h-9i    00:06:00  00:31:00
28.S7a-8b    00:06:00  00:31:00
29.S7i-8h    00:06:00  00:31:00
30.G4a-5b    00:06:00  00:32:00
31.P3g-3f    00:09:00  00:32:00
32.G5b-6b    00:09:00  00:41:00
33.G4i-5i    00:13:00  00:41:00
34.P4d-4e    00:13:00  01:11:00
35.B7g-6h    00:18:00  01:11:00
36.P6d-6e    00:18:00  01:21:00
37.S6f-7g    00:18:00  01:21:00
38.S5d-6c    00:18:00  01:22:00
39.G5i-6i    00:20:00  01:22:00
40.P5c-5d    00:20:00  01:23:00
41.G6i-7i    00:54:00  01:23:00
42.P5d-5e    00:54:00  01:35:00
43.P2e-2d    00:54:00  01:35:00
44.P2cx2d    00:54:00  02:23:00
45.P3f-3e    00:54:00  02:23:00
46.P3dx3e    00:54:00  02:23:00
47.B6hx3e    01:10:00  02:23:00
48.P*3d      01:10:00  02:30:00
49.B3ex2d    01:13:00  02:30:00
50.R4b-2b    01:13:00  02:40:00
51.P*2e      01:13:00  02:40:00
52.P5ex5f    01:13:00  02:41:00
53.B2dx3c+   01:23:00  02:41:00
54.N2ax3c    01:23:00  02:41:00
55.B*4d      01:24:00  02:41:00
56.P5f-5g+   01:24:00  03:01:00
57.B4dx3c+   01:24:00  03:01:00
58.R2b-2a    01:24:00  03:01:00
59.P*5b      02:20:00  03:01:00
60.B*6d      02:20:00  04:24:00
61.R2h-2f    02:45:00  04:24:00
62.G6ax5b    02:45:00  04:40:00

Diagram 1

After a similar development as in the fourth game, Hirose slowly started to feel like 
he was in trouble. This is the sealed move and after the game he admitted that he hadn't 
slept well, waking up very early.

63.N*5e?!    03:10:00  04:40:00

Hirose had feared 63.+Bx3d Bx1a+ R3f! which threatens moves like +Bx5b Gx5b R3b+ or N3g 
and black is able to nicely develop his pieces.

64.P*5d      03:10:00  04:47:00
65.N5ex6c+   03:17:00  04:47:00
66.G5bx6c    03:17:00  04:47:00
67.P4g-4f    03:17:00  04:47:00
68.P4ex4f    03:17:00  05:00:00
69.P6g-6f    03:40:00  05:00:00
70.P4f-4g+   03:40:00  05:08:00
71.P6fx6e    03:40:00  05:08:00
72.B6dx1i+   03:40:00  05:08:00
73.+B3c-4c   03:40:00  05:08:00
74.R2a-4a    03:40:00  05:16:00
75.S*4b      03:40:00  05:16:00
76.R4a-7a    03:40:00  05:25:00
77.P*5c      04:46:00  05:25:00
78.P*4a      04:46:00  05:28:00
79.P5c-5b+   04:46:00  05:28:00
80.P4ax4b    04:46:00  05:28:00
81.+B4cx4b   04:46:00  05:28:00
82.S*6g      04:46:00  05:54:00
83.P6e-6d    05:00:00  05:54:00
84.S6gx7h+   05:00:00  05:55:00
85.G7ix7h    05:06:00  05:55:00
86.G*6g      05:06:00  05:56:00
87.P6dx6c+   05:31:00  05:56:00
88.G6bx6c    05:31:00  05:56:00
89.G*7i      05:32:00  05:56:00
90.G6gx7h    05:32:00  05:57:00
91.G7ix7h    05:32:00  05:57:00
92.G*6g      05:32:00  05:57:00
93.G*7i      05:35:00  05:57:00
94.G6gx7h    05:35:00  05:58:00
95.G7ix7h    05:35:00  05:58:00
96.G*6g      05:35:00  05:58:00
97.G*7i      05:35:00  05:58:00
98.G6gx7h    05:35:00  05:58:00
99.G7ix7h    05:35:00  05:58:00
100.G*6g     05:35:00  05:58:00
Sennichite   05:35:00  05:58:00

Sennichite Diagram

It is quite rare that two consecutive title match games end in sennichite and that a 
replay is necessary. However, here again it is too risky for either player to change 
the moves, so sennichite is the result. This game ended at 14:36 and it was decided 
to start the replay at 15:30.