83rd Kisei Match Game 2

[Black "Nakamura Taichi, Challenger"]
[White "Habu Yoshiharu, Kisei"]
[Event "83rd Kisei-sen, Game 2"]
[Date "June 23rd 2012"]
1.P2g-2f     00:00:00  00:00:00
2.P8c-8d     00:00:00  00:00:00
3.P7g-7f     00:01:00  00:00:00
4.G4a-3b     00:01:00  00:00:00
5.G6i-7h     00:01:00  00:00:00
6.P8d-8e     00:01:00  00:00:00
7.B8h-7g     00:01:00  00:00:00
8.P3c-3d     00:01:00  00:00:00
9.S7i-8h     00:01:00  00:00:00
10.B2bx7g+   00:01:00  00:00:00
11.S8hx7g    00:01:00  00:00:00

The Kakugawari opening was expected, because Nakamura is considered a specialist 
in this opening. After losing the first game from a very good position, it is 
not the time to experiment.

12.S3a-4b    00:01:00  00:00:00
13.S3i-3h    00:01:00  00:00:00
14.S7a-7b    00:01:00  00:00:00
15.P9g-9f    00:01:00  00:00:00
16.P9c-9d    00:01:00  00:00:00
17.P4g-4f    00:01:00  00:00:00
18.P6c-6d    00:01:00  00:00:00
19.S3h-4g    00:01:00  00:00:00
20.S7b-6c    00:01:00  00:00:00
21.K5i-6h    00:01:00  00:00:00
22.P1c-1d    00:01:00  00:00:00
23.P1g-1f    00:01:00  00:00:00
24.S6c-5d    00:01:00  00:01:00
25.K6h-7i    00:01:00  00:01:00
26.S4b-3c    00:01:00  00:01:00
27.S4g-5f    00:04:00  00:01:00
28.K5a-4b    00:04:00  00:01:00
29.G4i-5h    00:04:00  00:01:00
30.G6a-5b    00:04:00  00:01:00
31.P3g-3f    00:04:00  00:01:00
32.P6d-6e    00:04:00  00:02:00
33.N2i-3g    00:04:00  00:02:00
34.K4b-3a    00:04:00  00:02:00
35.G5h-4g    00:04:00  00:02:00
36.P4c-4d    00:04:00  00:02:00
37.P2f-2e    00:08:00  00:02:00
38.G5b-4c    00:08:00  00:03:00
39.K7i-8h    00:08:00  00:03:00
40.K3a-2b    00:08:00  00:05:00
41.R2h-6h    00:08:00  00:05:00
42.R8b-6b    00:08:00  00:05:00
43.G4g-4h    00:08:00  00:05:00
44.G4c-4b    00:08:00  00:07:00
45.R6h-6i    00:08:00  00:07:00
46.G4b-4c    00:08:00  00:07:00
47.R6i-5i    00:25:00  00:07:00
48.R6b-9b    00:25:00  00:12:00
49.S5f-4g    00:40:00  00:12:00

Diagram 1

This is the same position as the one that appeared in the 4th game of last 
year's Ryu-O match between Maruyama and Watanabe. White has no way to improve 
his position and tries to keep it while forcing black to either create some 
weaknesses or settle for sennichite. Sennichite is of course not bad for white, 
because the game will be replayed with reversed colors.

50.G4c-4b    00:40:00  00:17:00
51.P5g-5f    00:44:00  00:17:00
52.B*6d      00:44:00  00:17:00

This bishop keeps the black attacking formation in check and aims at P7d 
followed by N7c next, which would give white a very satisfying position with 
the strong vanguard pawn on 6e.

53.R5i-6i    00:45:00  00:17:00
54.R9b-6b    00:45:00  00:19:00
55.G4h-5h    00:46:00  00:19:00
56.P7c-7d    00:46:00  00:22:00
57.B*8c      01:01:00  00:22:00

Diagram 2

This bishop looks risky, but there is not much else to avoid the aforementioned 
P6e-N7c vanguard formation. White will now try to get this bishop, while black will 
try to save it, preferably with promotion. Quite an easy theme behind this middle 
game fight.

58.S5d-6c    01:01:00  00:27:00
59.P6g-6f    01:01:00  00:27:00
60.P8e-8f    01:01:00  00:28:00
61.P6fx6e    01:01:00  00:28:00

Black cannot take the pawn on 8f, because 61.Px8f Px6f Sx6f P*8b loses the bishop.

62.P8fx8g+   01:01:00  00:31:00
63.G7hx8g    01:01:00  00:31:00
64.B6d-7c    01:01:00  00:31:00
65.P7f-7e    01:04:00  00:31:00
66.P7dx7e    01:04:00  00:39:00
67.S7g-8f    01:13:00  00:39:00
68.P*6h      01:13:00  01:02:00
69.R6ix6h    01:32:00  01:02:00
70.P3d-3e!   01:32:00  01:07:00

Diagram 3

Habu has played a very positive opening where white is the attacking side. This 
is not necessarily winning, but more Watanabe style than Habu style, who normally 
counter attacks with white. Pushing the pawn near the king is a strong move. Going 
for the bishop with 70.P*8b would be a mistake because of 71.P6d! and after both 
72.Sx6d B7d+ and 72.Bx6d Bx6e+ the bishop escapes with promotion.

71.P*7d?     02:36:00  01:07:00

If black takes the pawn on 3e then 71.Px3e P*3f Sx3f Bx4f R6g P*8b is good for 
white because this time P6d doesn't work after Px8c Px6c+ and white has a choice 
between B*7i and B*4i, both of which give white a very good position. Nakamura 
played 71.P*7d after 64 minutes (quite long for a one-day title match), but not 
because he thought it was a good move, but because he was unable to find anything 
better. The press room agreed. Boxing in the bishop further doesn't look very 
good. Actually, there was a better move here as Habu pointed out in the post-mortem 
analysis. If black plays 71.P6d here, then after 72.Bx6d P5e Bx5e P*7g black has 
created an escape route for the bishop. For example, P*8e Sx7e P*7d P*5f B7c P*6d 
Px6d is unclear, but clearly better than the black position in the game.

72.B7c-8b    02:36:00  01:25:00
73.G5h-5g    02:48:00  01:25:00
74.P*8e!     02:48:00  02:05:00

Maybe the decisive move. 75.Sx8e is hard to play because after 76.S7b P7c+ Nx7c 
the silver on 8e is attacked.

75.S8fx7e    03:08:00  02:05:00
76.S6c-7b    03:08:00  02:14:00
77.P7d-7c+   03:23:00  02:14:00
78.S7bx8c    03:23:00  02:17:00

White has won the bishop and the pawn on 8e is very important attacking base, as 
we will see later in the game.

79.+P7cx8c   03:34:00  02:17:00

Diagram 4

Or 79.+Px8b Rx8b and black has no good moves, while the white rook is perfectly 
positioned for the attack on the 8th file. Also, 79.+Px6b B9c is an attack on the 
silver on 7e, which cannot move because of the gold on 5g and P*7f is met with S7d.

80.P3ex3f!   03:34:00  02:24:00

Habu doesn't give Nakamura any breathing time. This bishop sacrifice is very strong.

81.+P8cx8b   03:34:00  02:24:00

White has to take this bishop. 81.Sx3f fails to Bx4f! Gx4f B*5g and white wins 
because of the huge difference in king position.

82.P3fx3g+   03:34:00  02:24:00
83.S4g-5h    03:34:00  02:24:00
84.R6bx8b    03:34:00  02:39:00
85.B*6d      03:34:00  02:39:00
86.P*7c      03:34:00  02:43:00
87.P2e-2d    03:34:00  02:43:00
88.B*4h      03:34:00  03:07:00
89.P2dx2c+   03:34:00  03:07:00
90.G3bx2c    03:34:00  03:07:00
91.R6h-7h    03:35:00  03:07:00
92.P*6f!     03:35:00  03:31:00

Diagram 5

The final blow. This strongly threatens Bx5g+ Sx5g P6g+.

93.P*8c      03:41:00  03:31:00

Or 93.Gx6f P*6c B5e P5d and the bishop is lost.

94.R8b-6b    03:41:00  03:31:00
95.S7ex6f    03:41:00  03:31:00
96.N*7d      03:41:00  03:31:00

The black position has too many weaknesses. White wins.

97.S6f-7e    03:53:00  03:31:00
98.B4h-5i+   03:53:00  03:37:00
99.S*6h      03:53:00  03:37:00
100.+B5ix5h  03:53:00  03:38:00
101.G5gx5h   03:53:00  03:38:00
102.S*6i     03:53:00  03:38:00
103.S7ex7d   03:54:00  03:38:00
104.P7cx7d   03:54:00  03:39:00
105.R7hx7d   03:58:00  03:39:00
106.S6ix5h+  03:58:00  03:40:00
107.R7d-7a+  03:58:00  03:40:00
108.R6bx6d   03:58:00  03:40:00
109.P6ex6d   03:58:00  03:40:00
110.+S5hx6h  03:58:00  03:40:00
111.R*7b     03:59:00  03:40:00
112.B*5d     03:59:00  03:43:00
113.B*3a     03:59:00  03:43:00
114.K2b-3b   03:59:00  03:47:00
115.R7b-7e+  03:59:00  03:47:00
116.S*7i     03:59:00  03:48:00
Resigns      03:59:00  03:48:00

Final Diagram

Mate after 117.+Rx7i Bx8g+ Kx8g G*8f etc. or 117.K9g S*8h K9h Sx9i+ Kx9i G*8h 
Gx8h Sx8h+ Kx8h G*8g etc. Note how the pawn on 8e helps in the final mate. 
A good win for Habu that brings him within one game of winning 81 title matches, 
topping Oyama's record. Not much in this game for Nakamura, who was outplayed 
from the opening. He needs to find a way to beat Habu quickly, or his first 
title match will be a short one.