15th Ryu-O Match Game 6

Black: Abe Takashi, Challenger
White: Habu Yoshiharu, Ryu-O
15th Ryu-O sen, Game 6, December 26th and 27th 2002
1.P7g-7f     00:01:00  00:00:00
2.P8c-8d     00:01:00  00:05:00
3.G6i-7h     00:04:00  00:05:00
4.G4a-3b     00:04:00  00:07:00
5.S7i-6h     00:07:00  00:07:00
6.P3c-3d     00:07:00  00:10:00
7.P6g-6f     00:07:00  00:10:00
8.S7a-6b     00:07:00  00:12:00
9.P5g-5f     00:09:00  00:12:00
10.P5c-5d    00:09:00  00:14:00
11.S3i-4h    00:10:00  00:14:00
12.S3a-4b    00:10:00  00:19:00
13.G4i-5h    00:12:00  00:19:00
14.K5a-4a    00:12:00  00:25:00
15.K5i-6i    00:13:00  00:25:00
16.P7c-7d    00:13:00  00:27:00
17.G5h-6g    00:18:00  00:27:00
18.G6a-5b    00:18:00  00:40:00
19.S6h-7g    00:19:00  00:40:00
20.S4b-3c    00:19:00  00:43:00
21.B8h-7i    00:20:00  00:43:00
22.B2b-3a    00:20:00  00:45:00
23.P3g-3f    00:21:00  00:45:00
24.P4c-4d    00:21:00  00:50:00
25.B7i-6h    01:14:00  00:50:00
26.G5b-4c    01:14:00  02:15:00
27.K6i-7i    01:15:00  02:15:00
28.B3a-6d    01:15:00  02:16:00
29.N2i-3g    01:43:00  02:16:00
30.K4a-3a    01:43:00  02:16:00
31.R2h-3h    01:43:00  02:16:00
32.K3a-2b    01:43:00  02:17:00
33.K7i-8h    02:04:00  02:17:00

Except for the very first game, the opening in this match has been 
quite predictable. Yagura in the games where Abe has black and Yokofudori 
in the games where Habu has black. After the gruelling game 4, Habu 
seems to have lost confidence in the early edge attack he played 
against Abe's Morishita System. In this game he plays a very orthodox 
Yagura opening.

34.P8d-8e    02:04:00  02:31:00
35.P2g-2f    02:31:00  02:31:00
36.S6b-5c    02:31:00  02:42:00
37.S4h-5g    02:46:00  02:42:00
38.S3c-2d    02:46:00  02:53:00
39.S5g-4f    03:21:00  02:53:00
40.P9c-9d    03:21:00  03:09:00
41.P1g-1f    03:25:00  03:09:00
42.P1c-1d    03:25:00  03:14:00
43.L1i-1h    03:32:00  03:14:00
44.P9d-9e    03:32:00  04:03:00
45.P6f-6e    04:00:00  04:03:00
46.B6d-7c    04:00:00  04:05:00
47.N3g-2e    04:00:00  04:05:00
48.S5c-4b    04:00:00  04:12:00

This is a position that Abe has played before. In a 1997 Junisen 
game he played the black pieces against Ono. There it followed 
49.P5e Px5e P1e Px1e P3e P4e Sx4e Px3e P7e and in the end white won. 
Other moves that have been tried are 49.P3e and 49.P1e.

49.P5f-5e    05:27:00  04:12:00

Abe plays the same move he played against Ono. It is highly likely that 
he had some improvement of the black play, but we will not know that in 
this game.

50.P4d-4e    05:27:00  04:46:00

Diagram 1

Habu is the one who varies first. After 50.Px5e black can play 50.P3e or 
50.P1e which is also playable for both sides. In other positions, 50.P4e 
is a common response to a black pawn push, but in this position it took 
Abe completely by surprise. 

51.S4fx4e    05:30:00  04:46:00
52.B7cx5e    05:30:00  04:46:00
53.P4g-4f!?  06:12:00  04:46:00

Diagram 2

Hard to play as it seems that white can now just exchange the pawns on 
the 8th file after 54.P8f Px8f Rx8f. However, Habu said after the game 
that he was in trouble after P4f. He might have been counting on 53.B4f 
Bx4f Px4f P*4d S5f B*2g which favours white.

54.B5e-7c    06:12:00  06:13:00

Played after 87 long minutes. It is unclear why Habu didn't play 54.P8f 
here. After 54.B7c, white wins a silver, but black gets a very strong 
attack in the centre. No way of telling who has the advantage.

55.S7g-6f    06:13:00  06:13:00
56.P8e-8f    06:13:00  06:14:00
57.P8gx8f    06:16:00  06:14:00
58.P5d-5e    06:16:00  06:14:00
59.B6h-7g    06:26:00  06:14:00
60.P*4d      06:26:00  06:29:00
61.S6fx5e    06:26:00  06:29:00
62.P4dx4e    06:26:00  06:29:00
63.P4fx4e    06:26:00  06:29:00
64.S4b-3c    06:26:00  06:46:00
65.S5e-4d    06:37:00  06:46:00
66.S2dx2e    06:37:00  07:08:00
67.P2fx2e    06:39:00  07:08:00
68.S*4g      06:39:00  07:08:00

Diagram 3

69.R3h-6h?   06:46:00  07:08:00

An important mistake. Correct was 69.R3i B2h+ R7i (R5i seems to fail to 
Gx4d Px4d S*5h, but even that is difficult to judge) Gx4d Px4d N*5e G*4c 
Sx4d Gx4d P*8e Px8e N7c which results in a difficult position.

70.N*5f      06:46:00  07:10:00
71.S*4a?     07:02:00  07:10:00

The second mistake in a row changes the black position from questionable 
to losing. Here 71.Sx4c+ was the only way to stay in the game. After 
72.Gx4c, black can choose between 73.S*4d Nx6h+ G6gx6h S*3b Sx4c+ Sx4c 
G*5c S*3b P4d or 73.R6i S5h= R2i S*6i. Both variations are far from easy 
for white. This might have been a moment where the pressure of becoming 
Ryu-O title holder might have clouded Abe's judgement.

72.N5fx6h+   07:02:00  07:12:00
73.S4ax3b+   07:02:00  07:12:00
74.K2bx3b    07:02:00  07:12:00
75.G6gx6h    07:02:00  07:12:00
76.R*5i      07:02:00  07:16:00
77.N*5e      07:14:00  07:16:00
78.G4cx4d    07:14:00  07:36:00
79.P4ex4d    07:15:00  07:36:00

Diagram 4

80.R5ix5e+?! 07:15:00  07:36:00

Strange. The general opinion in the press room was that 80.Sx4d would 
win easily here. For example, 81.G*4c K2b Nx6c+ B5e and here Habu 
feared G*6i, but after R2i+ Gx4d S*6f is winning for white.

81.G*4c      07:32:00  07:36:00
82.K3b-2b    07:32:00  07:36:00
83.P*5b?     07:39:00  07:36:00

A desperate attempt at trying to keep the white king contained, but this 
overlooks white's reply. Better was 83.Bx5e Bx5e N7g B*4f and even though 
it seems white is still winning, black has more chances of setting up a 
good attack than in the game.

84.+R5ex2e!  07:39:00  07:41:00

Now the white king can escape up the board and there is no way for black 
to prevent this.

85.P*2f      07:50:00  07:41:00
86.+R2ex3f   07:50:00  07:48:00
87.P*3b      07:53:00  07:48:00
88.N*6f      07:53:00  07:52:00
89.P3b-3a+   07:54:00  07:52:00
90.N6fx7h+   07:54:00  07:52:00
91.G6hx7h    07:54:00  07:52:00
92.S*6i      07:54:00  07:52:00
93.G*6h      07:56:00  07:52:00
94.S6ix7h+   07:56:00  07:53:00
95.G6hx7h    07:56:00  07:53:00
96.P*8g      07:56:00  07:54:00
97.K8hx8g    07:56:00  07:54:00
98.S*6i      07:56:00  07:56:00
99.S*6g      07:59:00  07:56:00
100.K2b-1c!? 07:59:00  07:57:00

Diagram 5

This move shows how important it is for Habu to win this game. The 
professional way of playing this position is attacking the black king 
as soon as you are convinced that your attack is one move faster than 
your opponent's. However, in this special case Habu opts for a tactic 
that strong amateurs often play: rather than winning, make a position 
from which it is impossible to lose. The game will last longer, but Abe 
gets no chance to turn the tables.

101.+P3ax2a  07:59:00  07:57:00
102.K1c-2d   07:59:00  07:57:00
103.B7g-6h   07:59:00  07:57:00
104.B7c-4f   07:59:00  07:57:00
105.B6hx4f   07:59:00  07:57:00
106.+R3fx4f  07:59:00  07:57:00
Resigns      07:59:00  07:57:00

Final Diagram

In this position without hope Abe resigned. A game that will be 
remembered for the pressure upon both players rather than the playing 
level. Abe will be disappointed that he was not able to convert a 
promising middle game position. However, he will get another chance 
in the decisive game. Habu or Abe, who will be the next Ryu-O?