Jul 11, 2009

Shogi Game record : MORIUCHI won with Yokofutori NAKAHARA ryu . (Saikyou sen)

Shogi Game record : The 3rd Saikyou sen

A shogi Game of Saikyou sen between MARUYAMA and MORIUCHI started 10 May 2009 on the Net .


Sente : MARUYAMA Tadahisa (9 dan)
Gote : MORIUCHI Toshiyuki (9 dan)

(diagram 1)

1.P-7f P-3d
2.P-2f G-3b
3.P-2e P-8d
4.G-7h P-8e
5.P-2d Px2d
6.Rx2d P-8f
7.Px8f Rx8f
8.Rx3d B-3c
9.R-3f S-2b
10.P*8g R-8d
11.R-2f K-4a
12.K-5h S-6b
13.G-3h P-5d
14.S-4h P-5e
15.S-6h P-7d
16.P-3f P-7e
(diagram 1)

When MORIUCHI moved up his left Gold with 2...S-3b , he seemed to select Ittezon Kakukawari as the opening of this game . But MORIUCHI advanced his Rook Pawn , instead of exchanging the Bishops .

MARUYAMA captured the 3d Pawn with 8.Rx3d , and the opening became Yokofutori .
Replying MARUYAMA's 10.P*8g , MORIUCHI backed his Rook to 8d . In other words , MORIUCHI didn't select CHUZA Bisha . MORIUCHI started making NAKAHARA gakoi with 11...K-4a . (But he didn't complete this Kakoi) This strategy is called "Yokofutori NAKAHARA ryu" .

MARUYAMA's King sitting on 5h , and the king on this position is usually called "Naka zumai Gyoku" . The formation of Golds sitting on 3h and 7h , separate from the King is called "Kin biraki" . Kin biraki formation usually appeares with Naka zumai , in mainly Aigakari & Yokofutori games .

After some mvoes , MORIUCHI crushed the 7th file Pawn with 16...P-7e

(diagram 2)

17.Px7e P-5f
18.P-6f P-6d
19.Px5f P-6e
20.S4h-5g Px6f
21.N-3g N-7c
22.R-2i P*7g
23.Bx7g N-6e
24.Bx6f G-5b
25.N-4e Nx5g+
26.Sx5g Bx6f
27.Sx6f P*3g
28.Gx3g P*2h
29.R-6i B*7f
30.K-4h N-3c
31.Nx3c+ Sx3c
32.N*4e N*2e
33.G-2g S-4d
(diagram 2)

After 2 Pawns sacrifice , MORIUCHI further crushed the 6th file Pawn with 19...P-6e .
MORIUCHI continued attacking and MARUYAMA had a defencive position . After some moves MORIUCHI's attack the positon was still very difficult . MORIUCHI might have a slight advantage .

(diagram 3)

34.S-7g B-5d
35.B*9e Bx8g+
36.Gx8g Rx8g+
37.B*9f +Rx9f
38.Px9f Sx4e
39.R*2a G-3a
40.N*3c K-4b
41.Rx2e+ S*3d
42.+Rx3d Sx3d
43.Bx6b+ R*7h
44.K-5g N*4e
45.K-6g B*8g
46.S*7f Gx6b
47.Sx8g R-3h+
48.resigns
(diagram 3)

After 94 moves , MORIUCHI won the game .

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