49th Oi Match Game 6

[Black "Fukaura Koichi, Oi"]
[White "Habu Yoshiharu, Challenger"]
[Event "49th Oi-sen, Game 6"]
[Date "September 9th and 10th 2008"]
1.P7g-7f     00:00:00  00:00:00
2.P3c-3d     00:00:00  00:00:00
3.P2g-2f     00:00:00  00:00:00
4.G4a-3b     00:00:00  00:02:00
5.G6i-7h     00:03:00  00:02:00
6.P4c-4d     00:03:00  00:03:00

Looks like a passive way of playing this position, but it is more a question of what 
type of game you seek. Instead of an early fight, Habu prefers to have a slow build-up. 
Maybe not many fireworks in the opening, but this type of position gives both players 
a lot of freedom to build their own position, so strategic mistakes can have 
far-reaching consequences.

7.P2f-2e     00:09:00  00:03:00
8.B2b-3c     00:09:00  00:03:00
9.S3i-4h     00:09:00  00:03:00
10.G6a-5b    00:09:00  00:04:00
11.P5g-5f    00:19:00  00:04:00
12.S3a-2b    00:19:00  00:06:00
13.B8h-6f    00:19:00  00:06:00
14.G5b-4c    00:19:00  00:07:00
15.B6f-5g    00:19:00  00:07:00
16.K5a-4a    00:19:00  00:07:00
17.K5i-6i    00:22:00  00:07:00
18.P5c-5d    00:22:00  00:08:00
19.S7i-6h    00:24:00  00:08:00
20.S7a-6b    00:24:00  00:11:00
21.G4i-5h    00:27:00  00:11:00
22.S6b-5c    00:27:00  00:27:00
23.S6h-7g    00:28:00  00:27:00
24.K4a-3a    00:28:00  00:53:00
25.P3g-3f    00:30:00  00:53:00
26.B3c-4b    00:30:00  01:08:00

Diagram 1

An important concession and Fukuara will have been quite satisfied with his position 
here. The black opening strategy has been based on being able to exchange the pawn 
on 2d at any time. Looking at this from the white point of view, this can't be 
helped but white wants black to play P2d while the bishop is still on 3c. However, 
white is running out of moves in this position, because the other point here is that 
white doesn't want to push the rook pawn because keeping the pawn back gives extra 
attacking options with N8e. White can keep the bishop on 3c, and develop the right 
side of the board, but with the silver on 2b, the king will never be safe and a
 black counter attack will be devastating. So, Habu decides to give up a full move 
(after the exchange of the bishops on 2d next, 26.B4b becomes a waste of time) to 
make sure that his king can be safely castled.

27.P2e-2d    00:42:00  01:08:00
28.P2cx2d    00:42:00  01:09:00
29.B5gx2d    00:42:00  01:09:00
30.B4bx2d    00:42:00  01:09:00
31.R2hx2d    00:42:00  01:09:00
32.S2b-2c    00:42:00  01:09:00
33.R2d-2h    00:42:00  01:09:00
34.P*2d      00:42:00  01:09:00
35.B*6h      00:55:00  01:09:00
36.B*5a      00:55:00  01:16:00
37.K6i-7i    01:06:00  01:16:00
38.P1c-1d    01:06:00  01:18:00
39.P1g-1f    01:07:00  01:18:00
40.P7c-7d    01:07:00  01:21:00
41.K7i-8h    01:10:00  01:21:00
42.P9c-9d    01:10:00  01:27:00
43.P9g-9f    01:15:00  01:27:00
44.S5c-6d    01:15:00  02:02:00
45.P6g-6f    02:16:00  02:02:00
46.P5d-5e    02:16:00  02:05:00
47.P5fx5e    02:17:00  02:05:00
48.R8b-5b    02:17:00  02:05:00

Black has the advantage of having a pawn in hand and white exchanges pawns in the 
centre to nullify this difference.

49.N2i-3g    02:25:00  02:05:00

Black really wants to play 50.P4f here to start an attack with P4e, but after 
51.Sx5e P*5f white doesn't need to pull back the silver, but can play P*5g Sx5g 
Sx5f instead.

50.R5bx5e    02:25:00  02:15:00
51.S4h-5i    02:38:00  02:15:00

Diagram 2

This silver move looks a little strange, but black wants to switch the rook to 
the centre file. Also, black wants to use this silver to strengthen the defence 
later with S5i-6h after the bishop moves from 6h.

52.R5e-5b    02:38:00  02:19:00
53.G5h-6g    02:38:00  02:19:00
54.N8a-7c    02:38:00  03:10:00
55.R2h-5h    02:51:00  03:10:00
56.P*5e      02:51:00  03:10:00
57.B6h-4f    03:11:00  03:10:00
58.K3a-2b    03:11:00  03:10:00
59.L9i-9h    03:18:00  03:10:00
60.N7c-8e    03:18:00  03:28:00
61.S7g-8f    03:50:00  03:28:00
62.P8c-8d    03:50:00  03:28:00
63.K8h-9i    03:50:00  03:28:00
64.B5a-4b    03:50:00  03:34:00
65.G7h-8h    03:51:00  03:34:00
66.R5b-5a?   03:51:00  03:43:00

Diagram 3

Uncharacteristically, Habu passes up on an opportunity to start the attack. This 
was the sealed move and Habu took only 9 minutes for it. When asked after the game 
if 66.P4e or 66.P9e weren't viable alternatives, he first commented that he just 
thought that these wouldn't work. However, the post-mortem analysis showed that 
especially 66.P9e was probably a better move than 66.R5a. For example, 66.P9e Px9e 
P7e Px7e Sx7e Sx7e Bx7e S*4a (the move that Habu didn't like) is answered by P*9g 
and the white attack looks pretty strong.

67.S5i-6h    04:11:00  03:43:00

This is an important difference, because the black castle is now very strong.

68.P7d-7e    04:11:00  03:54:00
69.P*2e      04:29:00  03:54:00
70.P2dx2e    04:29:00  03:55:00
71.P6f-6e    04:44:00  03:55:00
72.S6dx6e    04:44:00  03:58:00
73.P*2d      04:44:00  03:58:00
74.S2cx2d    04:44:00  04:31:00
75.R5hx5e    04:44:00  04:31:00

Black has been playing forcing moves, not allowing white the edge attack with P9e.

76.R5ax5e    04:44:00  04:41:00

If white wants to play the edge attack, 76.S5d looks like the way to do it, but 
then black plays 77.Rx7e! and after Bx7e Px7e the silver on 2d hangs, which is 
painful for white.

77.B4fx5e    04:44:00  04:41:00
78.S6ex7f    04:44:00  05:05:00
79.R*4a      05:06:00  05:05:00
80.R*3a      05:06:00  05:16:00
81.R4ax3a+   05:06:00  05:16:00
82.G3bx3a    05:06:00  05:16:00
83.G6gx7f    05:46:00  05:16:00
84.P7ex7f    05:46:00  05:16:00
85.R*7b      05:46:00  05:16:00
86.R*6i      05:46:00  05:26:00
87.S*5b      06:07:00  05:26:00
88.G4c-3c    06:07:00  05:52:00
89.S5b-5a=   06:21:00  05:52:00
90.P*5b!     06:21:00  05:58:00

Diagram 4

It seems that black has gotten the upper hand in this game, but this is a very 
good pawn drop.

91.R7bx5b+?! 06:46:00  05:58:00

The alternative is 91.Sx4b= Gx4b B*5a G*4a Bx4b+ Gx4b G*5i which also looks very 
good for black. After Rx5i+ Sx5i B*6g S6h or Rx6h+ Gx6h S*7i G6h-7h the white attack 
is not decisive yet and black has moves like P*5c and R7a+ which seem to be in time. 
Still, 91.Rx5b+ can also not be called bad, because black ends up with the promoted 
rook on 6c where it is positioned very well to attack the white king. It just seems 
that it is more difficult to give the attack decisive strength after 91.Rx5b+.

92.G*4a      06:46:00  05:59:00
93.P*2c      06:47:00  05:59:00
94.K2bx2c    06:47:00  06:06:00
95.S5ax4b+   06:47:00  06:06:00
96.G3ax4b    06:47:00  06:06:00
97.+R5bx6c   06:48:00  06:06:00
98.S*7g      06:48:00  06:35:00
99.N3gx2e    06:57:00  06:35:00
100.S2dx2e   06:57:00  06:49:00
101.P*2d     06:57:00  06:49:00

The start of a downward spiral for Fukuara.

102.K2c-1c   06:57:00  06:49:00
103.B5ex9a+? 07:22:00  06:49:00

This seems the real culprit. Here black should have played 103.B*5d instead. Then 
after 104.Sx8h+ Kx8h black has no problems, after 104.P*6f B*4f black has mate if 
he gets a silver in hand, which is no problem with the white silver on 7g , after 
104.N*6f S6hx7g Px7g+ Sx7g Nx7g+ Gx7g S*7i N*8h is safe and finally, after 104.Sx6h+ 
Bx2a+ black has a winning attack. Fukaura admitted that 103.Bx9a+ was a serious 
mistake, but he said that he just wasn't able to read out all the variations here.

104.P*6b!    07:22:00  07:17:00

Diagram 5

This second pawn drop is even nastier than the first one on 5b. It forces the white 
rook out of position and that is basically deciding the game.

105.P2d-2c+  07:25:00  07:17:00
106.K1cx2c   07:25:00  07:19:00
107.L*2d     07:25:00  07:19:00
108.K2cx2d   07:25:00  07:20:00
109.+B9a-4f  07:25:00  07:20:00

It is now clear why 101.P*2d and 103.Bx9a+ were bad moves. Black has sacrificed the 
pawn on 2d (105.P2c+), sacrificed the lance he took (107.L*2d) and moved the bishop 
back to 4f where it could have gone straightaway instead of taking the lance on 9a.

110.N*3e     07:25:00  07:20:00
111.+R6c-6e  07:31:00  07:20:00
112.L*4e     07:31:00  07:24:00
113.+B4f-5g  07:32:00  07:24:00
114.L4ex4g+  07:32:00  07:26:00

Habu has now completely closed off all routes to his king and because the head of 
the king is very strong, black's attacking chances have been completely nullified. 
The game is over, but Fukaura is trying to make a final stand that he hopes may 
carry over to the all-deciding seventh game.

115.+B5g-6g  07:33:00  07:26:00
116.S7gx8h=  07:33:00  07:32:00
117.K9ix8h   07:33:00  07:32:00
118.G*5g     07:33:00  07:33:00
119.P*2f     07:35:00  07:33:00
120.S2ex2f   07:35:00  07:36:00
121.S*7h     07:52:00  07:36:00
122.G5gx6h   07:52:00  07:40:00
123.+B6gx6h  07:52:00  07:40:00
124.R6ix6h+  07:52:00  07:40:00
125.+R6ex6h  07:52:00  07:40:00
126.B*5e     07:52:00  07:40:00
127.B*6f     07:54:00  07:40:00
128.B5ex1i+  07:54:00  07:40:00
129.B6fx8d   07:54:00  07:40:00
130.+B1i-5e  07:54:00  07:44:00
131.P*7g     07:55:00  07:44:00
132.P7fx7g+  07:55:00  07:45:00
133.S8fx7g   07:55:00  07:45:00
134.N8ex7g+  07:55:00  07:46:00
135.N8ix7g   07:56:00  07:46:00
136.P*7f     07:56:00  07:46:00
137.B8d-6f   07:59:00  07:46:00
138.+B5e-5f  07:59:00  07:46:00
139.P*5g     07:59:00  07:46:00
140.P7fx7g+  07:59:00  07:46:00
141.+R6hx7g  07:59:00  07:46:00
142.S*6e     07:59:00  07:46:00
143.P*2g     07:59:00  07:46:00
144.N3ex2g+  07:59:00  07:47:00
145.R*5e     07:59:00  07:47:00
146.S6ex6f   07:59:00  07:49:00
147.G*2e     07:59:00  07:49:00
148.K2d-1c   07:59:00  07:49:00
149.+R7gx6f  07:59:00  07:49:00
150.+B5fx5e  07:59:00  07:49:00
151.+R6fx5e  07:59:00  07:49:00
152.N*7f     07:59:00  07:49:00
Resigns      07:59:00  07:49:00

Final Diagram

If black moves the king down it is an easy mate and after either 153.K7g or 153.K9g, 
white wins the rook after 154.B*8h followed by Bx5e+. This ends all hope, so Fukaura 
decided to resign here. For the second year in a row, Habu comes back from 3-1 down 
to force a seventh game in the Oi match. Last year Fukuara came out on top. Who will 
it be this year?