20th Ryu-O Match Game 2

[Black "Watanabe Akira, Ryu-O"]
[White "Sato Yasumitsu, Challenger"]
[Event "20th Ryu-O sen, Game 2"]
[Date "October 31st and November 1st 2007"]
1.P7g-7f     00:01:00  00:00:00
2.P3c-3d     00:01:00  00:01:00
3.P2g-2f     00:04:00  00:01:00
4.P5c-5d     00:04:00  00:01:00
5.S3i-4h     00:32:00  00:01:00

This game starts with the Gokigen Nakabisha, just like the 2nd and 4th 
of last year's Ryu-O match between Watanabe and Sato. There Watanabe played 
5.P2e both times, plunging into a quick fight. This time he plays a little 
less aggressive.

6.B2bx8h+    00:32:00  00:08:00
7.S7ix8h     00:32:00  00:08:00
8.R8b-2b     00:32:00  00:08:00
9.K5i-6h     00:49:00  00:08:00

Again Watanabe decided to play it quietly instead of trying his luck in the 
Sato special 9.B*7g R1b P2e S2b, a strange opening with which Sato has had 
some success in the past.

10.S3a-4b    00:49:00  00:09:00
11.G6i-7h    01:04:00  00:09:00
12.P2c-2d    01:04:00  00:24:00
13.K6h-7i    01:11:00  00:24:00
14.K5a-6b    01:11:00  00:26:00
15.P8g-8f    01:11:00  00:26:00
16.K6b-7b    01:11:00  00:45:00
17.S8h-8g    01:13:00  00:45:00
18.K7b-8b    01:13:00  01:03:00
19.N8i-7g    01:28:00  01:03:00
20.L9a-9b    01:28:00  01:31:00
21.P9g-9f    01:31:00  01:31:00
22.K8b-9a    01:31:00  01:31:00
23.K7i-8h    01:33:00  01:31:00
24.S7a-8b    01:33:00  01:32:00
25.P5g-5f    01:54:00  01:32:00
26.N2a-3c    01:54:00  01:37:00
27.P3g-3f    01:56:00  01:37:00
28.G4a-5a    01:56:00  01:45:00
29.N2i-3g    01:56:00  01:45:00
30.G5a-6b    01:56:00  01:54:00
31.S4h-5g    02:14:00  01:54:00
32.G6a-7a    02:14:00  02:06:00
33.P6g-6f    02:27:00  02:06:00
34.S4b-5c    02:27:00  02:25:00
35.S5g-4f!?  03:25:00  02:25:00

Diagram 1

An unusual move, especially from a player like Watanabe who is always most 
concerned about the safety of the king. After the game Watanabe admitted that 
he didn't like his position at all here. Being fond of the Anaguma himself, 
he only realized the difference between the Silver Crown castle he is playing 
and the Anaguma after actually playing it here. Even though he is black, he 
saw no way to start anything significant. 35.S4f should be seen as a desperate 
attempt to try something with black.

36.P7c-7d?   03:25:00  02:48:00

With the specialties reversed (Sato playing Anaguma and Watanabe playing Silver 
Crown), combined with two players not in their top form, the opening is much 
less accurate as one would expect at this level. Sato could have easily played 
36.S4d here after which 37.B*3a R3b B7e+ P3e Px3e Sx3e Sx3e P*3f is good for white.

37.P8f-8e    03:35:00  02:48:00
38.P9c-9d?   03:35:00  02:56:00

Invites the edge attack, so Sato regretted this move as well. He felt that without 
pushing the edge pawn the position might even have been winning.

39.P6f-6e    03:56:00  02:56:00
40.P1c-1d    03:56:00  03:12:00
41.G4i-5h    04:27:00  03:12:00

Diagram 2

The sealed move. Watanabe thought that the position was a strategic loss, so he 
decided that strengthening his castle and waiting for a chance was more important 
than covering the holes for a bishop drop here.

42.B*3i      04:27:00  03:33:00

Here again the difference in shogi sense between the two players became apparent. 
Sato wanted to drop this bishop and promote it, while Watanabe expected that Sato 
would play something else, because the bishop in hand would be more important.

43.R2h-2i    05:14:00  03:33:00

Change of plan. Watanabe initially intended to play 43.R3h B6f+ G5h-6g +B4d P3e 
Px3e Sx3e +Bx3e N2e here, but here realized that P*3f or P*3g Rx3g S*3f would be 
a little too much. Many professionals crumble when they have to change their plans, 
but one of the things that sets Watanabe apart from most other professionals is his 
flexibility. Without any concern for breaking the flow of the game he switches easily 
from plan A to plan B. Sato makes a promoted bishop next, but Watanabe can make sure 
that he cannot do much with it.

44.B3i-6f+   05:14:00  03:46:00
45.S4f-5g    05:14:00  03:46:00
46.+B6f-4d   05:14:00  03:46:00
47.G5h-6g    05:14:00  03:46:00
48.G6b-7b    05:14:00  04:38:00
49.P4g-4f    05:19:00  04:38:00
50.S5c-6b    05:19:00  04:40:00
51.N3g-4e    05:33:00  04:40:00
52.N3cx4e    05:33:00  04:51:00
53.P4fx4e    05:33:00  04:51:00
54.+B4d-5c   05:33:00  04:51:00
55.N*8f      05:58:00  04:51:00
56.S6b-7c    05:58:00  05:14:00
57.S5g-6f    05:59:00  05:14:00
58.P6c-6d    05:59:00  05:35:00
59.P6ex6d    06:02:00  05:35:00
60.+B5cx6d   06:02:00  05:35:00
61.P*6e      06:02:00  05:35:00
62.+B6d-6c   06:02:00  05:44:00
63.B*3c      06:13:00  05:44:00

Here 63.P5e seems a plausible alternative, but after 64.P8d Px8d P*8e Nx8e S8d white 
can launch a strong attack on the head of the black king.

64.R2b-1b    06:13:00  05:52:00
65.B3c-5a+   06:31:00  05:52:00

The point here is not only a bishop promotion, but also that this bishop is defending 
the square 8d, so that the attack explained earlier is no longer possible.

66.P3d-3e    06:31:00  06:27:00

Diagram 3

67.P3fx3e?   06:44:00  06:27:00

Watanabe has been playing very well after losing the opening battle, but this is a 
mistake that gives Sato the advantage. Correct was 67.P2e Px3f Px2d R3b P2c+ R3e +B2d 
and black has everything to play for.

68.R1b-3b    06:44:00  06:29:00
69.R2i-3i    06:44:00  06:29:00
70.+B6c-5c   06:44:00  06:31:00
71.P3e-3d    06:46:00  06:31:00
72.R3b-3a    06:46:00  06:31:00
73.+B5a-3c   06:48:00  06:31:00

It is important to understand that this move shows that black has done something wrong. 
The idea was to promote a pawn on 3c, but instead black is forced to block this pawn, 
making the promoted bishop a hostage piece in the process (white can take this bishop 
any time he needs it with the rook). Still, here black has no choice because after 
73.+Bx2d R2a the white rook comes into play.

74.P8c-8d    06:48:00  06:31:00
75.N8fx9d    07:10:00  06:31:00

Diagram 4

Watanabe realizes he has made a mistake and tries a desperate attack.

76.L9bx9d?!  07:10:00  06:36:00

After the game Sato admitted that he was surprised at how black was able to continue 
to attack with only a small number of pieces. On hindsight, he thought that 76.S8c 
would have been better here.

77.+B3c-2b   07:10:00  06:36:00
78.R3a-6a    07:10:00  06:42:00
79.P3d-3c+   07:11:00  06:42:00
80.N*8f?     07:11:00  06:49:00

Sato criticized this move as well, saying that 80.P*9b would have been better here.

81.+P3cx4c   07:15:00  06:49:00

Suddenly the tables have been turned and Watanabe is in the driving seat again.

82.N8fx7h+   07:15:00  06:49:00
83.K8hx7h    07:15:00  06:49:00
84.+B5cx4c   07:15:00  06:49:00
85.P9f-9e    07:15:00  06:49:00
86.L9dx9e    07:15:00  06:51:00
87.L9ix9e    07:15:00  06:51:00
88.P*9d      07:15:00  06:51:00
89.P8ex8d    07:15:00  06:51:00
90.P*8c      07:15:00  07:07:00
91.P*9c      07:18:00  07:07:00
92.S8bx9c    07:18:00  07:07:00
93.N*8e      07:18:00  07:07:00
94.S7cx8d    07:18:00  07:28:00
95.N8ex9c+   07:18:00  07:28:00
96.S8dx9c    07:18:00  07:32:00
97.P*9b      07:22:00  07:32:00
98.K9ax9b    07:22:00  07:34:00
99.N7g-8e    07:23:00  07:34:00
100.G7a-8b   07:23:00  07:34:00
101.N8ex9c+  07:23:00  07:34:00
102.G8bx9c   07:23:00  07:34:00
103.S*8e     07:23:00  07:34:00
104.G*8d     07:23:00  07:34:00
105.S8ex8d   07:23:00  07:34:00
106.P8cx8d   07:23:00  07:36:00
107.L9ex9d   07:25:00  07:36:00
108.G9cx9d   07:25:00  07:36:00
109.P*9e     07:25:00  07:36:00
110.G9dx9e   07:25:00  07:36:00
111.L*9i     07:25:00  07:36:00
112.N*8c     07:25:00  07:36:00
113.+B2b-3b  07:26:00  07:36:00
114.+B4c-5c  07:26:00  07:37:00
115.R3i-3c+  07:28:00  07:37:00
116.R6a-6c   07:28:00  07:40:00
117.+B3b-4a  07:40:00  07:40:00
118.S*5b     07:40:00  07:45:00
119.+R3c-2b  07:40:00  07:45:00
120.L*8e     07:40:00  07:52:00
121.P*8f     07:40:00  07:52:00
122.L8ex8f   07:40:00  07:52:00
123.S8gx8f   07:40:00  07:52:00
124.+B5cx8f  07:40:00  07:52:00

Diagram 5

125.+B4ax5b? 07:41:00  07:52:00

Mistake number one. 125.S*7g is probably winning for black.

126.+B8f-5i  07:41:00  07:52:00
127.P*8g     07:47:00  07:52:00
128.R6c-7c?! 07:47:00  07:58:00

Looks like a good move, as it is hard for black to defend here, but at the party 
after the game, one of the journalists suggested 128.N*8f Px8f P*6h!, a move that 
was not even mentioned during the post-mortem analysis. The point is that after 
Gx6h S*8g Kx8g (K6g Sx7f+) +Bx6h is difficult to defend. Sato suggested S*7g, but 
then G9f! is a brilliant move. Lx9f is a check, but this is countered by N*9e, 
which is also a check. Then Lx9e Nx9e K9g P*9f Kx9f +B7h is mate. Actually, after 
P*6h black can still defend with G*7i and after P6i+ +Bx6c +Px7i Kx7i N*8g K7h S*6i 
K8h G*7h Kx8g +Bx8f K9h white has only mate with a pawn drop, so it doesn't seem to 
be enough for white. Despite this, Sato was a little upset that he wasn't able to 
come up with a move like P*6h.

129.G*6i??   07:54:00  07:58:00

A blunder that ends the game immediately.

130.N*8f     07:54:00  07:58:00
131.P8gx8f   07:54:00  07:58:00
132.S*8i     07:54:00  07:58:00

This is the move that Watanabe overlooked. For some reason he only had seen 132.S*8g 
and after K7i S8h+ Kx8h +B6i S*7h N*9f Lx9f G*9g K7g white cannot take the pawn on 8f 
and black wins.

133.K7h-7i   07:58:00  07:58:00
134.N*8g     07:58:00  07:58:00
135.K7ix8i   07:58:00  07:58:00
136.+B5ix6i  07:58:00  07:58:00
137.L9ix9e   07:58:00  07:58:00
138.N8cx9e   07:58:00  07:59:00
139.+B5bx7d  07:59:00  07:59:00
140.R7cx7d   07:59:00  07:59:00
141.+R2bx7b  07:59:00  07:59:00
142.R7dx7b   07:59:00  07:59:00
143.P*9c     07:59:00  07:59:00
144.N8ax9c   07:59:00  07:59:00
Resigns      07:59:00  07:59:00

Final Diagram

No mate (144.G*9a Kx9a N*8c K8b) and no defence, so Watanabe resigned here. A game with 
an unusual number of mistakes, but that also made it very interesting. Both players win 
with the white pieces, and the match is down to a best-of-five with Watanabe's service 
game coming up.