16th Ryu-O Match Game 1

(Comments translated from Shukan Shogi by Richard Sams)
[Black "Habu Yoshiharu, Ryu-O"]
[White "Moriuchi Toshiyuki, Challenger"]
[Event "16th Ryu-O sen, Game 1"]
[Date "October 21st and 22nd 2003"]
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.P4c-4d     00:01:00  00:01:00
5.P2f-2e     00:04:00  00:01:00
6.B2b-3c     00:04:00  00:01:00
7.S3i-4h     00:05:00  00:01:00
8.P9c-9d     00:05:00  00:01:00
9.K5i-6h     00:07:00  00:01:00
10.R8b-4b    00:07:00  00:01:00
11.K6h-7h    00:10:00  00:01:00
12.S7a-7b    00:10:00  00:04:00
13.P5g-5f    00:24:00  00:04:00
14.G4a-5b    00:24:00  00:04:00
15.P9g-9f    00:40:00  00:04:00
16.S3a-3b    00:40:00  00:06:00
17.G4i-5h    00:41:00  00:06:00
18.K5a-6b    00:41:00  00:06:00
19.P3g-3f    01:05:00  00:06:00
20.K6b-7a    01:05:00  00:08:00
21.S7i-6h    01:05:00  00:08:00
22.K7a-8b    01:05:00  00:10:00
23.S6h-5g    01:05:00  00:10:00
24.S3b-4c    01:05:00  00:11:00
25.G6i-6h    01:41:00  00:11:00
26.P5c-5d    01:41:00  00:26:00
27.P4g-4f    02:06:00  00:26:00
28.P6c-6d    02:06:00  00:33:00
29.P4f-4e    02:07:00  00:33:00
30.G5b-6c    02:07:00  01:09:00
31.N2i-3g    02:15:00  01:09:00
32.P7c-7d    02:15:00  01:09:00
33.P2e-2d    02:30:00  01:09:00
34.P2cx2d    02:30:00  01:11:00
35.P4ex4d    02:32:00  01:11:00
36.S4cx4d    02:32:00  01:11:00
37.P*4e      02:32:00  01:11:00
38.S4dx4e    02:32:00  01:11:00
39.B8hx3c+   02:33:00  01:11:00
40.N2ax3c    02:33:00  01:11:00
41.B*8h      02:33:00  01:11:00
42.R4b-4c    02:33:00  01:23:00
43.R2hx2d    02:34:00  01:23:00
44.P*4g      02:34:00  01:25:00

Diagram 1

A useful move. If 45. Sx4g P*4f. After S-5i, Black can no longer answer 
P-3e by S-4g and is also denied the possibility of bringing this silver 
to 5f in lines where the pawn moves to 5e. Ranging rook specialist Fujii 
9-dan pointed out that this idea of interpolating the moves P*4g S-5i 
before a bishop-silver exchange on 5e was not new, but he was not aware 
of any recent examples of it in practical play.

45.S4h-5i    02:38:00  01:25:00
46.P5d-5e    02:38:00  02:12:00
47.B8hx5e    02:53:00  02:12:00
48.S4e-5d    02:53:00  02:18:00
49.P*4d      02:54:00  02:18:00
50.R4c-5c    02:54:00  02:24:00
51.R2d-2b+   02:57:00  02:24:00
52.S5dx5e    02:57:00  03:04:00
53.P5fx5e    02:59:00  03:04:00
54.P3d-3e    02:59:00  03:05:00
55.+R2bx1a   03:07:00  03:05:00

Here the game was adjourned. 

56.P*5f!?    03:07:00  04:27:00

Diagram 2

Moriuchi's sealed move, not anticipated by Habu or by any of the 
professionals watching the game. Most had expected Moriuchi to seal 
either 56. Px3f or 56. R-5a. Moriuchi himself was mainly looking at 
56. G6c-6b. He analyzed the following line: L*5f R-5a; +Rx5a Gx5a; 
P-5d Px4h+; S5ix4h Px3f; P-5c+ Px3g+; +Px6b Gx6b; Sx3g N-4e when he 
thought the position was difficult but playable. But while he was 
considering this line, he noticed the idea of P*5f. It's the kind 
of light, counterattacking pawn drop that ranging rook players like, 
but after the game Moriuchi said it was an "over-refinement." If Black 
had replied with 57. Sx5f, he felt he would have stood worse. Fujii 
9-dan, on the other hand, was very impressed by P*5f, pointing out 
that it was a difficult move to see because it took away from White 
the possibility of Rx5e. From Black's point of view, he thought it 
was the most unpleasant move to face.

57.S5g-6f?   03:59:00  04:27:00

Habu must have been surprised too, since he took 52 minutes over a 
reply he later regretted. After the game he said that S-6f had been 
a crucial mistake. 

58.P6d-6e    03:59:00  04:39:00
59.S6fx6e?   04:36:00  04:39:00

This capture looks natural, but Habu later regretted it, pointing out 
that 59. L*5d would have been better. This lance drop seems dubious 
with the silver en prise, but it is surprisingly strong: L*5d Rx5d; 
Px5d Px6f; R*3b L*6b; P-5c+ Gx5c; Rx6b+ Gx6b; S*7a K-7c; Sx6b= Kx6b; 
L*6e. Black's attack looks very dangerous, though of course White has 
the possibility of playing Px6g+ at any point in the above line, so 
it's actually quite difficult. Even so, it certainly gives Black 
better prospects than the game continuation.

60.R5cx5e    04:36:00  04:43:00
61.L*6f      05:13:00  04:43:00
62.B*4f      05:13:00  05:40:00

Habu said that he didn't like his position after this bishop drop.

63.S6ex5f    05:33:00  05:40:00
64.R5ex5f    05:33:00  05:41:00
65.L6fx6c+   05:34:00  05:41:00
66.P4g-4h+   05:34:00  06:01:00
67.P*5g      05:47:00  06:01:00

Black has no choice but to drop this pawn to block out White's rook 
and bishop. If Sx4h Rx5h; Gx5h G*7i; K-8h B*7h is good for White. 
Although Black”Ēs attack looks strong, he has no way of finishing 
White off after +Lx7b Gx7b.

68.+P4hx5h   05:47:00  06:29:00
69.S5ix5h    05:54:00  06:29:00
70.S*5i      05:54:00  06:29:00
71.G*6i      05:59:00  06:29:00
72.S5ix6h+   05:59:00  06:37:00
73.G6ix6h    05:59:00  06:37:00
74.B*5i      05:59:00  06:37:00
75.S*7i      06:24:00  06:37:00
76.R5f-5d    06:24:00  06:44:00
77.P4d-4c+   07:06:00  06:44:00
78.P*5f      07:06:00  06:45:00
79.P5gx5f    07:06:00  06:45:00
80.B4fx3g+   07:06:00  06:51:00
81.+P4c-5b   07:14:00  06:51:00
82.R5dx5b    07:14:00  07:14:00

Kisei titleholder Sato thought that 82. Rx5f was strong here, when 
after +Px6a Bx6h+; Sx6h Rx5h+; B*7a K-9b White's horse on 3g defends 
against mate on 8b. According to Shima 8-dan, "This decision to give 
up his rook to eliminate the tokin was very much in Moriuchi's recent 
style, placing emphasis on accurate defense. While Rx5f may lead to a 
quicker win, both moves are good. Ranging rook players usually hate 
being put in check by a silver on 7a (or 7i). The fact that Moriuchi 
chose this line shows how confident he is in his defensive ability."

83.+L6cx5b   07:14:00  07:14:00
84.G6ax5b    07:14:00  07:14:00
85.S*7a      07:22:00  07:14:00
86.K8b-9c    07:22:00  07:15:00
87.P9f-9e    07:25:00  07:15:00

Diagram 3

88.P9dx9e!   07:25:00  07:27:00

Moriuchi had originally intended to play 88. G*8e here, with the idea 
of getting to Black”Ēs king first with Gx7f. But after +R-4a Gx7f; P*7g 
N*8f; Px8f G*8g; K-6i Bx6h+: Kx6h White has no effective way of 
continuing the attack. After 12 minutes' thought, Moriuchi abandoned 
G*8e and took the pawn on 9e. Having been forced to make this 
concession, he later said he had no confidence in his position at 
this point, but as it turned out Black had no clear way of forcing 
home the attack. This change of course by Moriuchi was cool-headed 
and, as it turned out, the correct decision. 

89.+R1a-4a   07:37:00  07:27:00
90.G*4b      07:37:00  07:31:00
91.P*9d      07:40:00  07:31:00
92.K9cx9d    07:40:00  07:52:00
93.+R4ax4b   07:48:00  07:52:00
94.G5bx4b    07:48:00  07:52:00
95.G*8f      07:49:00  07:52:00
96.K9d-8d    07:49:00  07:56:00
97.R*6b      07:51:00  07:56:00

97. R*4d looks strong here, but after G*6a; Rx4b+ Gx7a White's king 
is safe.

98.R*5b      07:51:00  07:56:00
99.P*9b      07:53:00  07:56:00

Diagram 4

Habu said after the game that this "threw it away" and that 99. N-7g 
was correct, but the post-mortem analysis suggested that even here 
Black does not quite have enough: N-7g Rx6b; Sx6b= K-9c; R*4i G-5b; 
Rx5i+ P-8d; R-3i +B-2h; R-4i P*4g; S-5c+ Gx5c; B*7a K-8c: Bx5c+ when 
Habu had no confidence in Black”Ēs position. 

100.K8d-7c   07:53:00  07:57:00

This took Habu by surprise. Now the White king's escape cannot be 
prevented. Black does not have enough pieces in hand to press home 
his attack. 

101.R6bx5b+  07:53:00  07:57:00
102.G4bx5b   07:53:00  07:57:00
103.P9bx9a+  07:53:00  07:57:00
104.P*5g     07:53:00  07:57:00
105.S5hx5g   07:57:00  07:57:00
106.N3c-4e   07:57:00  07:57:00
107.S5g-6f   07:57:00  07:57:00
108.R*3h     07:57:00  07:57:00
109.R*5h     07:57:00  07:57:00
110.B5ix6h+  07:57:00  07:58:00
111.R5hx6h   07:57:00  07:58:00
112.G*5h     07:57:00  07:58:00
113.R6hx5h   07:57:00  07:58:00
114.R3hx5h+  07:57:00  07:58:00
115.G*6h     07:57:00  07:58:00
116.+R5h-5i  07:57:00  07:58:00
117.L*6e     07:57:00  07:58:00
118.P*6d     07:57:00  07:58:00
119.S6f-5e   07:57:00  07:58:00
120.K7c-6c   07:57:00  07:58:00
121.L6ex6d   07:57:00  07:58:00
122.K6c-5c   07:57:00  07:58:00
123.L6d-6b+  07:57:00  07:58:00
124.G5bx6b   07:57:00  07:59:00
125.B*4d     07:57:00  07:59:00
126.K5c-4c   07:57:00  07:59:00
127.B4dx6b+  07:57:00  07:59:00
128.R*2i     07:57:00  07:59:00
129.S5e-4d   07:58:00  07:59:00
130.K4c-3d   07:58:00  07:59:00
Resigns      07:58:00  07:59:00

Final Diagram

Black's attack is not powerful enough and defense against +Rx7i is 
necessary. However, after 131.G*6i +R4h leaves black with no hope of 
winning the game. A good win for Moriuchi with white to start this 
Ryu-O match. After losing the Meijin title in straight games against 
Habu, this will do his confidence a lot of good. Habu still seems to 
be struggling to find his form.