Shogi News : ISHIBASHI won the 4th game . (Jo-ryu Oi)

Shogi News : The 20th Jo-ryu Oi sen : 5 games title matcch


The 4th game of the 20th Jo-ryu Oi sen title match between ISHIBASHI and SHIMIZU started 9:00 A.M. 29 October 2009 at Himeji city , Hyogo .

6:56 P.M. 29 October 2009 , after 117 moves , ISHIBASHI won the 4th game of this match . The score of this match becomes "ISHIBASHI 2 --- 2 SHIMIZU" . Then the winner of next game will get the 20th Jo-ryu Oi title .

They are going to have next/last game 16 November 2009 , at Tokushima city , Tokushima .

Jo-ryu Oi sen main site
http://www.kobe-np.co.jp/20joryu/
(written in Japanese language)

You can see the original game record on the Net .
http://www4.kobe-np.co.jp/20joryu/kifu/
(diagram version , written in Japanese language)
http://www.kobe-np.co.jp/20joryu/text.html
(Java version , written in Japanese language)


Sente : ISHIBASHI Sachio (Jo-ryu Oi)
Gote : SHIMIZU Ichiyo (Jo-ryu Meijin , Jo-ryu Osho)

(diagram 1)

1.P-7f P-3d
2.G4i-5h G-3b
3.G-7h P-8d
4.P-6f S-6b
5.S-6h P-6d
6.S-4h G-5b
7.P-2f K-4a
8.P-5f B-3c
9.K-6i S-2b
10.S-7g S-6c
11.B-7i B-5a
12.P-3f P-7d
13.G5h-6g S-3c
14.S-3g P-4d
15.P-3e Px3e
16.Bx3e B-7c
17.K-7i G5b-4c
18.P-2e P-8e
19.S-3f K-3a
20.B-4f S-5d
21.N-3g P*3e
(diagram 1)

ISHIBASHI selected 2.G4i-5h again . This move mainly has a meaning of counter plan against Yokofutori , Ittezon Kakukawari , Gote Migi Shiken Bisha .

SHIMIZU still pushed the 6th file Pawn 5.P-6d , but she didn't select Migi Shiken Bisha . SHIMIZU made Yagura gakoi . ISHIBASHI exchanged the 3rd file Pawns and developed her attacking form .

Just after ISHIBASHI completed her attacking form , SHIMIZU dropped a Pawn to attack ISHIBASHI's attacking pieces .

(diagram 2)

22.Bx3e P-6e
23.B-2f S-4e
24.Sx4e Px4e
25.Px6e S*3e
26.Bx3e Bx3g+
27.R-1h N-7c
28.K-8h S-4d
29.B-6h N*2f
30.R-5h N-3h+
31.B-5g Nx6e
32.B-6f Nx7g+
33.G6gx7g P*6e
34.Bx4d Gx4d
35.R-6h P-7e
36.Px7e B*4c
37.S*7f Bx2e
38.P*3c Gx3c
39.S*5e Gx5e
40.Px5e +Bx5e
41.P*3d G-3b
42.P*5f +Bx5f
43.N*4d
(diagram 2)

ISHIBASHI captured the 3e-Pawn by her Bishop . SHIMIZU pushed thee 6th file Pawn with 22...P-6e aiming at both the 3g-Knight and the 6th file . SHIMIZU succeeded promoting her Bishop 26...Bx3g+ attacking the 2h-Rook .

ISHIBASHI's Rook escaped from the 3g-promoted Bishop , and SHIMIZU jumped her right Knight with N-7c aiming at the 6e-Pawn . ISHIBASHI's King entered Yagura gakoi without protecting the 6e-Pawn .

SHIMIZU moved up her left Silver with 28...S-4d , attacking the 3e-Bishop forcing the Bishop to back . SHIMIZU dropped a Knight with 29...N*2f attacking ISHIBASHI's Rook .

ISHIBASHI's Rook escaped with 30.R-5h and SHIMIZU made a promoted Knight with 30...N-3h+ .

SHIMIZU attacked ISHIBASHI's camp with 31...Nx6e , 33...P*6e . ISHIBASHI exchanging the Bishop with the 4d-Silver . ISHIBASHI dropped a Pawn & a Knight with 38.P*3c & 43.N*4d attacking SHIMIZU's Kakoi directly .

(diagram 3)

43...S*4c
44.Nx3b+ Rx3b
45.Rx3h P*3g
46.R-2h N*6f
47.G7h-6g +Bx4g
48.P*4d Sx3d
49.S*4c P-3h+
50.Sx3b+ Kx3b
51.R*5b S*4b
52.R-2f S*4a
53.R-6b+ K-3c
54.Sx6e N-5h+
55.S-5f +B-3f
56.Rx3f Bx3f
57.G*2f P*3e
58.B*5e R*2i
59.P-4c+ resigns
(diagram 3)

After 117 moves , ISHIBASHI won the game .