Jul 28, 2009

Shogi News : KUBO won with Gokigen Nakabisha . (Ryuo sen)

Shogi News : The 22nd Ryuo sen : challenger deciding tournament

9:29 P.M. , 28 July 2009 , after 90 moves , KUBO won the Ryuo sen tournament game with MATSUO . KUBO will have a semi final game of this tournament with FUKAURA .

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

Sente : MATSUO Ayumu (7 dan)
Gote : KUBO Toshiaki (Kio )

(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 K-8b
9.S-4g S-7b
10.K-6h S-3c
(diagram 1)

KUBO selected Gokigen Nakabisha as the opening of this game , and MATSUO selected shin MARUYAMA's vaccin with Sato Shinte line . KUBO completed Kata mino gakoi and he prepared to move his Rook to the 2nd file , while MATSUO was making Hidari mino .

(diagram 2)

11.K-7i R-2b
12.K-8h S-4d
13.G4i-5h N-3c
14.S-7g R-2a
15.P-7e P-8d
16.G-7h G-4b
17.P-6f S-8c
18.S-7f G-7b
19.P-8f S-5e
20.G5h-6g P-4d
21.B*7g P-4e
(diagram 2)

MATSUO's King entered Hidari mino , but he immediately started developping the Kakoi to Gin tachi Yagura . This strategy is usually called Gyoku tou Kurai dori .

In the other hand , KUBO completed one of the standard formations of Kaku koukan Furibisha ; S-4d , N-3c , R-2a , G-4b . And he developped his Kata mino gakoi to Kata Gin kanmuri .

After developped the camp , KUBO advanced his 4d-Silver with 19...S-5e , aiming at 6f-Pawn . MATSUO protected the Pawn by moving up the left Gold with 20.G-6g . Then KUBO advanced his 4th file Pawn and started attacking in the 4th file with 21...P-4e .

(diagram 3)

22.Px4e Nx4e
23.S-3f P*4f
24.P-6e B*3i
25.R-3h Bx5g+
26.Sx4e P-4g+
27.Gx5g +Px5g
28.P-8e G*6f
29.Bx6f Sx6f
30.Px8d Sx8d
31.P-6d Px6d
32.P*8c Gx8c
(diagram 3)

Sacrificing the 4e-Knight , KUBO successed to make a promoted Pawn , and his pieces came closer to MATSUO's King . MATSUO tried to attack with his pieces in hand .

(diagram 4)

34.G*7b K-9b
35.P*8e Gx6c
36.Px8d Gx8d
37.Sx5d P*8g
38.Gx8g P*8f
39.Gx8f B*6h
40.N*7g B*7i
41.K-9h Gx5d
42.S*8h S*7h
43.Rx6h Bx6h+
44.S-8e P*8g
45.Sx8d Px8h+
(diagram 4)

After 90 moves , KUBO won the game .

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