84th Kisei Match Game 3

[Black "Habu Yoshiharu, Kisei"]
[White "Watanabe Akira, Challenger"]
[Event "84th Kisei-sen, Game 3"]
[Date "July 6th 2013"]
1.P7g-7f     00:00:00  00:00:00
2.P8c-8d     00:00:00  00:00:00
3.P2g-2f     00:00:00  00:00:00
4.G4a-3b     00:00:00  00:00:00
5.G6i-7h     00:01:00  00:00:00
6.P8d-8e     00:01:00  00:00:00
7.B8h-7g     00:02:00  00:00:00
8.P3c-3d     00:02:00  00:00:00
9.S7i-8h     00:03:00  00:00:00
10.B2bx7g+   00:03:00  00:00:00
11.S8hx7g    00:03:00  00:00:00
12.S3a-4b    00:03:00  00:00:00
13.S3i-3h    00:04:00  00:00:00
14.S7a-7b    00:04:00  00:00:00
15.P9g-9f    00:04:00  00:00:00
16.P9c-9d    00:04:00  00:00:00
17.P4g-4f    00:05:00  00:00:00
18.P6c-6d    00:05:00  00:00:00
19.S3h-4g    00:06:00  00:00:00
20.S7b-6c    00:06:00  00:00:00
21.K5i-6h    00:06:00  00:00:00
22.S6c-5d    00:06:00  00:01:00
23.S4g-5f    00:06:00  00:01:00
24.P4c-4d    00:06:00  00:01:00
25.G4i-5h    00:06:00  00:01:00
26.G6a-5b    00:06:00  00:01:00
27.P3g-3f    00:06:00  00:01:00
28.K5a-4a    00:06:00  00:01:00
29.K6h-7i    00:06:00  00:01:00
30.K4a-3a    00:06:00  00:01:00
31.P1g-1f    00:06:00  00:01:00
32.P1c-1d    00:06:00  00:01:00
33.N2i-3g    00:06:00  00:01:00
34.P6d-6e    00:06:00  00:04:00

After two Yokofudori games, we now get a Kakugawari opening. White moves the pawn 
early to 6e, which leads to a slow build-up.

35.P2f-2e    00:13:00  00:04:00
36.S4b-3c    00:13:00  00:04:00
37.G5h-4g    00:13:00  00:04:00
38.G5b-4c    00:13:00  00:04:00
39.K7i-8h    00:13:00  00:04:00
40.K3a-2b    00:13:00  00:04:00
41.R2h-6h    00:13:00  00:04:00
42.R8b-6b    00:13:00  00:04:00
43.R6h-4h    00:13:00  00:04:00
44.R6b-4b    00:13:00  00:05:00
45.R4h-2h    00:22:00  00:05:00
46.R4b-8b    00:22:00  00:05:00
47.G4g-4h    00:22:00  00:05:00
48.G4c-4b    00:22:00  00:05:00
49.R2h-2i    00:22:00  00:05:00
50.G4b-4c    00:22:00  00:05:00
51.R2i-6i    00:22:00  00:05:00
52.R8b-6b    00:22:00  00:05:00
53.R6i-5i    00:22:00  00:05:00

This movement of the rook has become joseki. It seems to be aimless, but it is using 
the rule that in shogi it is not possible to pass. For example, if white moves the 
rook to 8b without thinking here with 54.R8b, black moves the rook back to 2i with 
55.R2i and white is stuck for moves. The natural 56.K3a invites 57.P4e Px4e Sx4e 
Sx4e Nx4e S4d P*4f and black threatens B*6a followed by Bx4c+ and P2d next, which 
is not easy to defend against.

54.R6b-9b    00:22:00  00:10:00
55.S5f-4g    00:23:00  00:10:00
56.G4c-4b    00:23:00  00:13:00
57.P5g-5f    00:24:00  00:13:00
58.B*6d      00:24:00  00:13:00
59.R5i-6i    00:24:00  00:13:00
60.R9b-6b    00:24:00  00:13:00
61.G4h-5h    00:25:00  00:13:00
62.P7c-7d    00:25:00  00:15:00
63.B*8c      00:28:00  00:15:00

This is also a standard move. 

64.S5d-6c    00:28:00  00:16:00
65.P6g-6f    00:28:00  00:16:00
66.P8e-8f    00:28:00  00:22:00

Diagram 1

We are still in known territory, as this position also appeared in the second game of 
last year's Kisei match between Nakamura and Habu. In that game it followed 67.Px6e 
Px8g+ Gx8g B7c P7e Px7e S8f P*6h followed by P3e and Habu managed to keep his attack 
going and win.

67.S7gx8f    00:32:00  00:22:00
68.P6ex6f    00:32:00  00:24:00
69.R6ix6f    00:32:00  00:24:00
70.G4b-5b    00:32:00  00:40:00

Now we are in unknown territory. This game now becomes a mutual attack where it is 
impossible to say who is better.

71.R6fx6d    00:54:00  00:40:00
72.S6cx6d    00:54:00  00:40:00
73.B*7a      00:54:00  00:40:00
74.R*3i      00:54:00  00:59:00
75.B7ax6b+   01:26:00  00:59:00
76.G5bx6b    01:26:00  00:59:00
77.P2e-2d    01:26:00  00:59:00
78.S3cx2d    01:26:00  01:03:00
79.B8cx7d+   01:29:00  01:03:00
80.R3ix3g+   01:29:00  01:25:00
81.+B7dx6d   01:42:00  01:25:00
82.N*6f      01:42:00  01:25:00
83.+B6d-6e   01:45:00  01:25:00
84.N6fx7h+   01:45:00  01:25:00
85.K8hx7h    01:45:00  01:25:00
86.+R3g-3i   01:45:00  01:25:00

White seems to be attacking strongly, having removed an important defending gold. The 
general opinion in the press room was that white had the upper hand here, but Habu 
has something up his sleeve.

87.N*5i      02:19:00  01:25:00
88.+R3ix1i   02:19:00  01:41:00
89.+B6ex3b   02:43:00  01:41:00
90.K2bx3b    02:43:00  01:41:00
91.P*2b!     02:43:00  01:41:00

Diagram 2

A hidden move that Watanabe and all the professionals in the press room had overlooked.

92.K3bx2b    02:43:00  02:55:00

Clearly not what Watanabe wanted to play and played after 74 minutes of thought. Watanabe 
had looked at moves like 92.+Rx5i Gx5i N*6f or 92.L*6d P*6f B*5g Gx5g +Rx5i G*6i +Rx5g 
but it is not enough for white.

93.R*4b      02:45:00  02:55:00
94.G*3b      02:45:00  02:55:00
95.R4bx6b+   02:45:00  02:55:00

And the opinion had changed to a black advantage, but the drama has just started.

96.P*6a!     02:45:00  02:55:00
97.+R6bx6a   02:57:00  02:55:00
98.P*6f!     02:57:00  03:00:00

And 99.+Rx6f fails to B*2f followed by Bx5i+. However, leaving this pawn on 6f is 
dangerous.

99.P*2e!     03:18:00  03:00:00

Habu replies in kind. White cannot take this pawn because of 100.Sx2e P*2d. 

100.S2d-3c   03:18:00  03:09:00
101.S*4a!     03:18:00  03:09:00

Now 102.G3a is answered by G*3b Gx3b (K2b Gx3c) Sx3b+ Kx3b +R5b followed by G*4c. 
Objectively, Habu is winning here, but Watanabe fights back strongly.

102.B*4c     03:18:00  03:29:00
103.S4ax3b+  03:22:00  03:29:00
104.B4cx3b   03:22:00  03:29:00
105.G*3a     03:23:00  03:29:00
106.B3b-4c   03:23:00  03:29:00

Diagram 3

This bishop attacks the promoted rook and this pressure invites the mistake.

107.G*3b?    03:32:00  03:29:00

Watanabe has a good reply to this attack, which Habu overlooked. Correct was the 
cool 107.+R4a after which 108.S*6g is scary, but after 109.K8h Bx7f G*7g! is a 
strong defense. For example, B5d G*3b K1c Gx3c Nx3c G3b and black wins. Habu admitted 
after the game that he had overlooked G*7g in this variation.

108.K2b-1c   03:32:00  03:29:00
109.G3bx3c   03:32:00  03:29:00
110.N2ax3c   03:32:00  03:29:00
111.G3a-3b   03:32:00  03:29:00
112.S*2b!    03:32:00  03:29:00

Diagram 4

This defends against S*2b and because 113.Gx2b is not a mating threat, white can 
simply take the rook with 114.Bx6a.

113.+R6a-2a  03:40:00  03:29:00
114.B4cx3b   03:40:00  03:30:00
115.+R2ax3b  03:40:00  03:30:00
116.G*3a     03:40:00  03:30:00

Suddenly, Watanabe has turned the tables and the post-mortem analysis ended here. 
However, the difference is still marginal and there is still one difficult point 
left.

117.+R3b-4c  03:40:00  03:30:00
118.L*5g     03:40:00  03:36:00
119.+R4cx3d  03:47:00  03:36:00
120.L5gx5h+  03:47:00  03:36:00
121.S4gx5h   03:47:00  03:36:00
122.K1c-1b   03:47:00  03:36:00
123.S*2d     03:56:00  03:36:00
124.P2cx2d   03:56:00  03:38:00
125.L*1c     03:59:00  03:38:00
126.K1bx1c   03:59:00  03:45:00
127.+R3dx2d  03:59:00  03:45:00
128.K1c-1b   03:59:00  03:45:00
129.G*1c     03:59:00  03:45:00
130.K1b-2a   03:59:00  03:45:00
131.B*4c     03:59:00  03:45:00
132.P*3b     03:59:00  03:46:00
133.G1cx2b   03:59:00  03:46:00
134.G3ax2b   03:59:00  03:46:00
135.S*2c     03:59:00  03:46:00

Diagram 5

And after 135.G*3a Sx2b+ Gx2b G*2c G*3a the game ends in sennichite. In the press 
room there was already anticipation for another game, but Watanabe has seen it all.

136.G*7i!    03:59:00  03:47:00
137.K7h-8h   03:59:00  03:47:00

This leads to a long and difficult mate, but it is not immediately clear how white 
can win after 137.K7g, after which there is no mate. Even though this was not cleared 
up in the post-mortem analysis, Watanabe explained later that after 138.+Rx1g P*6g 
S*6h K6f B*4h K6e L*6a K5e (Bx6a+ G*5d is mate) G*5d and black has to give up the 
bishop: Bx5d+ Px5d Kx4d B2f+ G*3e Gx2c +Rx2c S*2b and white wins.

138.G7ix8i   03:59:00  03:47:00
139.K8h-9h   03:59:00  03:47:00
140.G8ix9i   03:59:00  03:48:00
141.K9hx9i   03:59:00  03:48:00
142.+R1ix5i  03:59:00  03:48:00
143.G*8i     03:59:00  03:48:00
144.L*9g     03:59:00  03:50:00
145.S8fx9g   03:59:00  03:50:00
146.B*7g     03:59:00  03:50:00
Resigns      03:59:00  03:50:00

Final Diagram

Mate after 147.L*8h +Rx8i Kx8i G*7i Kx7i G*6h K8i G*7h K9i L*9h Kx9h S*8i K9i Bx8h+ 
etc., so Habu resigned here. A game he could have won, but Watanabe played the endgame 
very well and is suddenly back in this match, having black in the next game.