54th Oi Match Game 2

[Black "Namekata Hisashi, Challenger"]
[White "Habu Yoshiharu, Oi"]
[Event "54th Oi-sen, Game 2"]
[Date "July 23rd and 24th 2014"]
1.P7g-7f     00:01:00  00:00:00
2.P8c-8d     00:01:00  00:01:00
3.S7i-6h     00:04:00  00:01:00
4.P3c-3d     00:04:00  00:03:00
5.P6g-6f     00:04:00  00:03:00
6.S7a-6b     00:04:00  00:07:00
7.P5g-5f     00:04:00  00:07:00
8.P5c-5d     00:04:00  00:11:00
9.S3i-4h     00:04:00  00:11:00
10.S3a-4b    00:04:00  00:11:00
11.G4i-5h    00:08:00  00:11:00
12.G4a-3b    00:08:00  00:24:00
13.G6i-7h    00:10:00  00:24:00
14.K5a-4a    00:10:00  00:29:00
15.K5i-6i    00:10:00  00:29:00
16.P7c-7d    00:10:00  01:10:00
17.S6h-7g    00:25:00  01:10:00

By moving up the silver early, Namekata is inviting Habu to play a quick attack. 

18.S6b-5c    00:25:00  01:24:00

Habu obliges.

19.P2g-2f    00:31:00  01:24:00
20.P5d-5e    00:31:00  01:27:00
21.S4h-5g    00:34:00  01:27:00
22.S5c-5d    00:34:00  01:30:00
23.P2f-2e    00:38:00  01:30:00
24.R8b-5b    00:38:00  01:39:00
25.P2e-2d    00:43:00  01:39:00
26.P2cx2d    00:43:00  01:45:00
27.R2hx2d    00:43:00  01:45:00
28.P*2c      00:43:00  01:58:00
29.R2d-2h    00:43:00  01:58:00
30.P5ex5f    00:43:00  02:31:00
31.S5gx5f    00:51:00  02:31:00
32.P6c-6d    00:51:00  02:31:00
33.K6i-7i    02:06:00  02:31:00
34.G6a-6b    02:06:00  03:35:00
35.S7g-6h    02:24:00  03:35:00
36.N8a-7c    02:24:00  03:36:00
37.P4g-4f    02:36:00  03:36:00
38.P6d-6e    02:36:00  03:38:00
39.S6h-5g    03:01:00  03:38:00

Diagram 1

The move order was different, but this position has been played before by both players. Habu (with black) 
played it on December 2nd 2011 against Goda in the Asahi Open tournament. This is a tournament that is 
open to the public and Namekata was in charge of the explanation for the visitors. He must have liked 
the black position, because a month later he played it himself. 

40.K4a-3a    03:01:00  04:34:00

In the game between Habu and Goda it followed 40.Px6f Sx6f P*6e P*5e and a sharp mutual attack was 
eventually won by Habu. Playing with white this time, Habu said in the post-mortem analysis that both 
P*5e and S5g looked promising for black, so he decided that 40.K3a was the better move. This moves the 
king away from the rook, therefore increasing the attacking options. Namekata agreed, saying that he 
expected 40.K3a to be played here.

41.G5h-6g    03:27:00  04:34:00
42.P1c-1d    03:27:00  04:35:00
43.P3g-3f    03:59:00  04:35:00
44.P9c-9d    03:59:00  04:39:00
45.P3f-3e!   04:17:00  04:39:00

Diagram 2

A strong move that gives Namekata the advantage. Because of the hole it creates on 3d, it is hard for 
white to take this pawn.

46.P3dx3e    04:17:00  05:11:00

Habu takes the pawn anyway, but admitted after the game that this was not the solution to his problems. 
However, after 46.Px6f Sx6f P*6e S5g Bx8h+ Kx8h B*4d, which he had planned originally, the white attack 
is not really clicking and in the end he decided to wait for a chance after 46.Px3e.

47.P*5e!     04:50:00  05:11:00

Black sacrifices a pawn to make use of the hole on 3d.

48.S5dx5e    04:50:00  05:20:00
49.S5fx5e    04:53:00  05:20:00
50.B2bx5e    04:53:00  05:20:00
51.P*5f      04:55:00  05:20:00
52.B5e-4d    04:55:00  05:22:00
53.S*3d      05:00:00  05:22:00

Diagram 3

Threatens the simple Sx2c+, but this is not easy to defend.

54.S*2d      05:00:00  05:53:00

Not the place you want to drop a silver, but Habu had no choice.

55.P6fx6e    05:13:00  05:53:00

Gets a vital pawn in hand and opens the bishop diagonal. Namekata has the upper hand.

56.G6b-5c!   05:13:00  05:54:00

Diagram 4

Of course Habu doesn't give up easily. This gold block the rook and therefore looks a little awkward, 
but it is now hard for black to take the bishop on 4d, because after Gx4d the silver on 3d is attacked. 
Also, white can switch the rook to 6b to strengthen the attack there.

57.P6e-6d?   05:45:00  05:54:00

This is a mistake that give the intended R6b more power. Correct was 57.P5e N6e Sx6f G6d G5f and 
black seems to keep his advantage.

58.R5b-6b    05:45:00  06:03:00
59.P*2b?     06:36:00  06:03:00

Another mistake that turns the tables. It seems like Namekata played this in the heat of the moment, 
because after the simple 60.Kx2b there is no follow-up. If he would have played 59.P4e here, things 
would still have been complicated. For example, 60.Bx8h+ Kx8h Rx6d Rx2d Px2d S*2c and the strong threat 
is Sx3b+ Kx3b B*2c K2b B4a+ and hisshi. In the post-mortem analysis no satisfying defense for white was 
found and Habu said that rather than "complicated", this seemed bad for him.

60.K3ax2b    06:36:00  06:49:00
61.P5f-5e    06:46:00  06:49:00
62.G5cx6d    06:46:00  06:52:00
63.P4f-4e    06:52:00  06:52:00
64.B4dx5e    06:52:00  06:55:00
65.B8hx5e    07:00:00  06:55:00
66.G6dx5e    07:00:00  06:55:00
67.B*4a      07:00:00  06:55:00
68.R6b-6a    07:00:00  07:04:00
69.B4ax7d+   07:04:00  07:04:00
70.P*6f      07:04:00  07:09:00
71.G6g-6h    07:18:00  07:09:00
72.N7c-6e    07:18:00  07:11:00

Diagram 5

Black has made a promoted bishop, but this attack is too strong. The black position collapses and his 
attack is not in time.

73.S5g-4f    07:24:00  07:11:00
74.G5ex4f    07:24:00  07:16:00
75.+B7d-5b   07:24:00  07:16:00
76.G4f-5g    07:24:00  07:21:00
77.P4e-4d    07:24:00  07:21:00
78.G5gx6h    07:24:00  07:24:00
79.R2hx6h    07:24:00  07:24:00
80.P*7g      07:24:00  07:24:00
81.P4dx4c+   07:24:00  07:24:00
82.P7gx7h+   07:24:00  07:24:00
83.R6hx7h    07:24:00  07:24:00
84.S4bx4c    07:24:00  07:24:00
85.S3dx4c+   07:24:00  07:24:00
86.P6f-6g+   07:24:00  07:24:00
Resigns      07:27:00  07:24:00

Final Diagram

White threatens mate with +Px7h Kx7h G*6h Kx6h S*5g etc. There is no good defense and black has no mate, 
so Namekata resigned here. A tough loss to take with the black pieces after having a good position and 
one wonders if Namekata has the mental strength to get back in this match. The next game he must win with 
the white pieces to have any hope of success.