Ai Yagura ; FUJII's Haya gakoi strategy

Shogi Game record : The 18th Ginga sen ; A-block


A shogi game of the Ginga sen A-block between FUJII and WATANABE was broadcasted 8 July 2010 .


Sente : FUJII Takeshi (9 dan)
Gote : WATANABE Akira (Ryuo)

(diagram 1)

1.P-7f P-8d
2.S-6h P-3d
3.P-6f S-6b
4.P-5f P-5d
5.S-4h S-4b
6.G4i-5h G-3b
7.G-6g K-4a
8.P-2f P-7d
9.P-2e S-3c
10.S-7g B-3a
11.B-7i S-7c
12.P-3f S-6d
13.B-4f B-4b
14.P-6e S-7c
15.K-6h P-4d
16.S-5g G-5b
17.S5g-6f G5b-4c
18.R-5h R-5b
19.P-5e
(diagram 1)

FUJII selected Yagura opening in this game and WATANABE accepted it . The game naturally advanced for a while . FUJII advanced the 2nd file Pawn with 9.P-2e forcing WATANABE to moved up the left Silver with 9...S-3c . FUJII started making his Yagura gakoi by Haya gakoi method .

After some moves , FUJII ranged his Rook with 18.R-5h and pushed the 5th file Pawn with 19.P-5e to exchange the Pawns before he finished making his Kakoi .

(diagram 2)

19...Px5e
20.Rx5e P*5d
21.R-5i K-3a
22.K-7h K-2b
23.K-8h P-9d
24.G-7h P-9e
25.B-3g L-9c
26.P-4f S-6b
27.P-4e N-7c
28.P-7e P-5e
29.Sx5e N-8e
30.S-8f Px4e
31.P*5d Px7e
32.B-2f P-3e
33.Px3e S-5a
34.Sx8e P*5h
35.R-3i Px8e
36.P*4d Sx4d
37.Sx4d Gx4d
38.N*3d
(diagram 2)

After the 5th file Pawn exchange , both players finished making their each Kakoi . Mainly FUJII continued attacking WATANABE's camp .

(diagram 3)

38...K-3a
39.Nx4b+ Sx4b
40.P-3d P*3e
41.S*5c Sx5c
42.Px5c+ Rx5c
43.B*6b R-5d
44.Bx4d+ Rx4d
45.Bx3e R-5d
46.P*5e N*7f
47.Gx7f Px7f
48.S*3c B*6f
49.P*7g Px7g+
50.Nx7g Bx5e
51.N*4c K-4a
52.G*5a Rx5a
53.Nx5a+ Kx5a
54.P*5b Kx5b
55.R*7b resigns
(diagram 3)

After 109 moves , FUJII won the game .