Dec 29, 2010

Gote Gokigen Nakabisha ; MARUYAMA's vaccin line unorthodox variation

Shogi game record : The 4th Asahi cup Shogi open ; 2nd pre-round

The Shogi game of the Asahi cup 2nd pre-round between SATO Yasumitsu and TANAKA Yuuichi started 2:00 P.M. (JST) , 8 November 2010 .

You can see the original game record on the Net .
(Flash version , written in Japanese language)

Sente : SATO Yasumitsu (9 dan)
Gote : TANAKA Yuuichi (4 dan)

(diagram 1)

1.P-7f P-3d
2.P-2f P-5d
3.P-2e R-5b
4.Bx2b+ Sx2b
5.P-9f P-9d
6.S-7h K-6b
7.S-4h K-7b
8.P-4f S-3c
9.K-6h K-8b
10.S-4g R-2b
11.P-3f S-7b
12.G-3h S-4d
13.P-6f P-8d
14.G-5h S-8c
15.N-3g G-7b
16.R-2i P-7d
17.S-6g N-7c
18.N-7g P-6d
19.P-5f S-5c
20.P-8f P-1d
21.R-8i P-2d
22.Px2d Rx2d
23.P-8e Px8e
24.P*2e R-2b
25.Nx8e Nx8e
26.Rx8e P*8d
27.R-8i P-4d
28.R-2i P*2c
29.P-1f G-5b
30.K-5g N*4c
31.K-4h P-5e
32.P-2d Px2d
33.P*2c Rx2c
(diagram 1)

Until 3...R-5b , TANAKA selected Gokigen Nakabisha as the opening of this game . SATO selected MARUYAMA vaccin line by Bishop exchange and pushed the 9th file Pawn with 5.P-9f to select SATO's variation .

SATO seemed to make Hidari mino , however he developed his camp to something like ITODANI ryu Migi Gyoku formation .

After some moves TANAKA started attacking with 31...P-5e and SATO counter-attacked TANAKA's camp and dropped a Bishop with 34.B*3b .

(diagram 2)

35.B-4a+ P-2e
36.Nx2e Px5f
37.S6gx5f G5b-6c
38.P*2c R-6b
39.P*5b R-6a
40.P-5a+ R-8a
41.P-2b+ S-5d
42.+Px2a N-5e
43.N-3c+ B*7g
44.Sx5e Sx5e
45.R-2b+ G6c-7c
46.P-7e P-4e
47.Px7d Gx7d
48.K-3g P*2e
49.N*6g Bx6f+
50.Nx5e S*2f
51.K-2h +Bx5e
52.N*6g +B-6e
53.N*7e Gx7e
54.Nx7e +Bx7e
55.+B-6c P*7c
56.S*6a Rx6a
57.+Px6a K-9c
58.R*8a N*2g
59.Rx8c+ Gx8c
60.S*8b resigns
(diagram 2)

After 119 moves , SATO won the game .

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