71st Meijin Match Game 1

[Black "Habu Yoshiharu, Challenger"]
[White "Moriuchi Toshiyuki, Meijin"]
[Event "71st Meijin-sen, Game 1"]
[Date "April 9th and 10th 2013"]
1.P2g-2f     00:00:00  00:00:00

The furigoma resulted in three tokins, giving Habu the black 
pieces. The childhood rivals play their third Meijin match in 
a row and their 8th in total. They know each other through and 
through, so one wonders if they can still surprise each other.

2.P8c-8d     00:00:00  00:01:00

This is the first Aigakari opening in a Meijin match since the 
4th game of the 67th match between Habu and Goda. This makes it 
21 games since the Aigakari appeared.

3.P2f-2e     00:02:00  00:01:00
4.P8d-8e     00:02:00  00:04:00
5.G6i-7h     00:04:00  00:04:00
6.G4a-3b     00:04:00  00:04:00
7.P2e-2d     00:05:00  00:04:00
8.P2cx2d     00:05:00  00:04:00
9.R2hx2d     00:05:00  00:04:00
10.P*2c      00:05:00  00:04:00
11.R2d-2h    00:05:00  00:04:00
12.S7a-7b    00:05:00  00:27:00
13.S3i-3h    00:12:00  00:27:00
14.P3c-3d    00:12:00  00:34:00
15.P1g-1f    00:24:00  00:34:00
16.P9c-9d    00:24:00  00:40:00
17.P9g-9f    00:43:00  00:40:00
18.P1c-1d    00:43:00  00:51:00
19.S3h-2g    00:47:00  00:51:00
20.P8e-8f    00:47:00  00:53:00
21.P8gx8f    00:48:00  00:53:00
22.R8bx8f    00:48:00  00:53:00
23.P*8g      00:48:00  00:53:00
24.R8f-8d    00:48:00  01:05:00
25.S2g-3f    00:55:00  01:05:00
26.K5a-5b    00:55:00  01:11:00
27.P7g-7f    01:04:00  01:11:00
28.P7c-7d    01:04:00  01:11:00
29.B8h-6f    01:07:00  01:11:00
30.B2bx6f    01:07:00  01:17:00
31.P6gx6f    01:07:00  01:17:00
32.N2a-3c    01:07:00  01:17:00
33.S7i-8h    01:11:00  01:17:00
34.K5b-4b    01:11:00  01:22:00
35.K5i-6h    01:50:00  01:22:00
36.S3a-2b    01:50:00  01:29:00
37.G4i-5h    01:51:00  01:29:00
38.P6c-6d    01:51:00  01:37:00
39.G5h-6g    02:15:00  01:37:00
40.S7b-6c    02:15:00  01:48:00
41.N8i-7g    02:16:00  01:48:00
42.N8a-7c    02:16:00  02:20:00
43.K6h-7i    02:17:00  02:20:00
44.G6a-6b    02:17:00  03:23:00
45.P8g-8f    02:50:00  03:23:00
46.P2c-2d    02:50:00  03:41:00
47.S8h-8g    03:08:00  03:41:00
48.R8d-8a    03:08:00  03:46:00
49.K7i-8h    03:26:00  03:46:00
50.S2b-2c    03:26:00  03:52:00

Both players have built a Silver Crown castle, with Habu moving into 
the castle with 8h and Moriuchi taking the balanced approach by 
keeping the king on 4b.

51.P5g-5f?!  03:34:00  03:52:00

"When bishops are exchanged, don't push the center pawn" is a shogi 
proverb that is ignored by Habu here. Habu has a plan with this pawn 
push, but because it fails, one can say that the proverb still stands 
strong. Correct was 51.P4f here followed by S4g and S5f.

52.P*8e      03:34:00  04:27:00
53.P8fx8e    03:40:00  04:27:00
54.N7cx8e    03:40:00  04:27:00
55.N7gx8e    03:40:00  04:27:00
56.R8ax8e    03:40:00  04:27:00
57.P*8f      03:41:00  04:27:00
58.R8e-8a    03:41:00  04:27:00
59.B*4f      04:00:00  04:27:00

Diagram 1

This was Habu's plan when playing P5f. The bishop works both in attack 
and defense, but there is a problem with this position that Moriuchi 
exposes.

60.N*4d!     04:00:00  04:41:00

Not aiming at the bishop but at the silver.

61.S3f-2g    04:41:00  04:41:00

A sad square for the silver. Sadder still, this silver will stay on this 
square for the rest of the game.

62.S6c-5d    04:41:00  04:43:00
63.P*2e      04:44:00  04:43:00
64.P2dx2e    04:44:00  05:37:00
65.B4fx6d    04:49:00  05:37:00
66.K4b-3a    04:49:00  05:45:00
67.B6d-4f?!  05:07:00  05:45:00

Diagram 2

This bishop retreat backfires. Habu should have tried 67.N*8c here. For 
example 68.Rx8c Bx9a+ P*6e P*2d Sx2d +B9b R7c +B8b K2b +Bx7c Gx7c R*6a 
Px6f Gx6f B*3a R6h N4e and the position is unclear.

68.B*3e!     05:07:00  05:48:00

Strong response. After the exchange of the bishops, black has a hard time 
finding effective moves.

69.P1f-1e    05:44:00  05:48:00
70.P1dx1e    05:44:00  05:49:00
71.P5f-5e    05:44:00  05:49:00
72.S5d-4e    05:44:00  05:55:00
73.B4fx3e    05:49:00  05:55:00
74.P3dx3e    05:49:00  05:55:00
75.P*1d      05:49:00  05:55:00
76.S2cx1d    05:49:00  06:03:00
77.P4g-4f    06:00:00  06:03:00

Diagram 3

78.S4e-5f!   06:00:00  06:17:00

In the press room 78.S3d was extensively analyzed, but Moriuchi showed 
his positive attitude by keeping his pieces moving forward. Moriuchi must 
have given this some serious consideration, because black gets quite a 
dangerous looking attack.

79.G6gx5f    06:11:00  06:17:00
80.N4dx5f    06:11:00  06:17:00
81.N*2d      06:11:00  06:17:00
82.G3b-4b    06:11:00  06:26:00
83.S*6c      06:22:00  06:26:00
84.G6b-7c    06:22:00  06:38:00

Of course, 84.Gx6c is answered by B*7b, but Moriuchi had judged that even 
after 84.G7c, he would have a slight advantage.

85.P5e-5d    06:29:00  06:38:00
86.P5cx5d    06:29:00  06:39:00
87.S6cx5d+   06:30:00  06:39:00
88.S1d-2c    06:30:00  07:11:00
89.R2h-5h    06:57:00  07:11:00
90.P*5e      06:57:00  07:30:00
91.+S5dx5e   07:17:00  07:30:00
92.P*8e      07:17:00  07:34:00
93.R5hx5f    07:19:00  07:34:00
94.P8ex8f    07:19:00  07:35:00
95.S8gx8f    07:19:00  07:35:00
96.R8ax8f    07:19:00  07:39:00
97.P*8g      07:20:00  07:39:00
98.R8f-8a    07:20:00  07:48:00
99.N*5d      07:24:00  07:48:00
100.G4b-5b   07:24:00  08:03:00

Diagram 4

101.P*5c     08:36:00  08:03:00

Habu spent almost all of his remaining time on this move, but it is not the 
answer to black's problems. It must have been quite a long and painful 1 hour 
and 12 minutes for him.

102.G5b-5a   08:36:00  08:04:00
103.P*1b     08:36:00  08:04:00
104.B*6i!    08:36:00  08:47:00

Diagram 5

Moriuchi is going for the kill. With this bishop drop he gives his attack 
decisive strength.

105.R5f-5i   08:44:00  08:47:00
106.S*6h!    08:44:00  08:49:00

Black cannot take this silver because 107.Gx7h Bx8g+ leads to a simple mate.

107.R5ix6i   08:48:00  08:49:00
108.S6hx6i=  08:48:00  08:49:00
109.B*6g     08:48:00  08:49:00
110.S2cx2d   08:48:00  08:56:00
111.P1bx1a+  08:48:00  08:56:00
112.R*4h     08:48:00  08:57:00
113.B*1b     08:56:00  08:57:00

An alternative seems to be 113.L*5h but after 114.P*5f! white is still 
much better.

114.G*2b     08:56:00  08:57:00
115.B1b-3d+  08:57:00  08:57:00

Or 115.B6g-2c+ Gx1b! (Gx2c? B2a+ K4a L*4b and mate) +Px1b Sx7h+ +Bx7h Rx8g+ 
Kx8g N*7e Px7e P*8f is a long mate and white wins.

116.N*8e     08:57:00  08:58:00
117.L*7g     08:59:00  08:58:00
118.P7d-7e   08:59:00  08:58:00
Resigns      08:59:00  08:58:00

Final Diagram


Here Habu resigned, because if white can get a pawn on 7f there is no defense. 
If black wants to try something +P1b is the only move, but after the simple G3b 
black has no pieces in hand to support the attack. Very convincing start for 
Moriuchi, taking a slight advantage to the end of the game. Moreover, winning 
with the white pieces can be very significant, because most game between these 
two players are won by the player having black. Still early days, but Habu already 
needs a strong comeback in the second game.