SATO becomes the challenger of the Osho sen !

Shogi News ; The 61st Osho sen ; challenger deciding game


7:47 P.M. , 2 December 2011 , after 90 moves , SATO wan the challenger deciding game and he becomes the challenger of the 61st Osho sen title match .


You can see the original game record on the Net .
http://mainichi.jp/enta/shougi/etc/kifu/111202.html
(Flash version , written in Japanese language)

http://mainichi.jp/enta/shougi/ohshoblog/
(The official blog of the Osho sen , written in Japanese language)


SATO Yasumitsu (9 dan)
TOYOSHIMA Masayuki (6 dan)

(diagram 1)

1.P-2f P-3d
2.P-7f G-3b
3.P-2e P-8d
4.G-7h Bx8h+
5.Sx8h S-2b
6.S-3h S-3c
7.K-6h S-6b
8.P-3f P-6d
9.S-3g S-6c
10.S-4f S-5d
11.P-3e Px3e
12.Sx3e P-8e
13.P*3d S-2b
14.G-5h P-8f
15.Px8f Rx8f
16.N-7g R-8b
17.P-2d Px2d
18.Sx2d P*2c
19.S-3e P-9d
20.S-4f P*8f
(diagram 1)

By 4...Bx8h+ , SATO selected Ittezon Kakugawari as the opening of this game and TOYOSHIMA advanced his right Silver onto 4f making Hayakuri Gin attacking form .

Replying TOYOSHIMA's 3rd file Pawn exchange , SATO advanced the 8th file Pawn with 12...P-8e to prepare a counter-attack . TOYOSHIMA dropped a Pawn with 13.P*3d forcing the 3c-Silver to back and made his King safety with 14.G-5h .

SATO exchanged the 8th file Pawn and TOYOSHIMA jumped the left Knight with 16.N-7g . SATO backed his Rook with 16...R-8b to avoid being attacked the Rook .

TOYOSHIMA exchanged the 2nd file Pawns and backed the right Silver onto 4f again . SATO dropped a Pawn with 20...P*8f aiming at this file .

(diagram 2)

21.R-2e G-7b
22.N-3g K-5b
23.R-3e P-7d
24.P*8d Rx8d
25.B*6f R-8b
26.P-3c+ Sx3c
27.N-2e B*2d
28.Nx3c+ Bx3c
29.P*8d S-6c
30.Bx3c+ Nx3c
31.B*6f B*2d
32.R-8e N*5d
33.P-8c+ Rx8c
34.B-8d Nx4f
35.Px4f Bx4f
36.B-6f B-3g+
37.G-7i Rx8e
38.Nx8e S*4i
39.G-6i Sx5h+
40.Gx5h G*4g
41.Gx4g +Bx4g
42.N*5h +Bx5h
43.Kx5h R*2h
44.G*4h N*4f
45.K-4g R-2g+
46.resigns
(diagram 2)

After 90 moves , SATO won the game .