Sep 30, 2008

MIURA won with an interesting opening .(Ginga sen)

Shogi News; The 16th Ginga sen tournament semifinal .

A semifinal game of Ginga sen tournament between MORIUCHI and MIURA was broadcasted 20 September 2008 .

Sente; MORIUCHI Toshiyuki (9 dan)
Gote; MIURA Hiroyuki (8 dan)

(diagram 1)

1. P-2f P-3d
2. P-7f G-3b
3. G-7h P-8d
4. P-2e P-8e
5. P-2d Px2d
6. Rx2d P*2c
(diagram 1)


MORIUCHI stated the game with P-2f . This move has some meanings , (1) To start "Aigakari" or "Kakukawari" opening , (2) To prevent Gote's 1...R-3b .

MIURA's reply 1...P-3d and 2...G-3b is mainly a starting moves set of "Ittezon Kakukawari " . But he transpositioned to "Yokofutori" by 4...P-8e , and he selected very rare variation ; 6...P*2c .

(diagram 2)

7. Rx3d Bx8h+
8. Sx8h B*2e
9. Rx3b+ Sx3b
10. S-3h S-3c
11. P-1f
(diagram 2)


Why the variation 6...P-2c is rare ? The answer is that 2 effective variations for Sente exist .
After diagram 1 ,
  • 7. Rx3d Bx8h+ 8. Sx8h B*2e 9. R-3f
  • 7. Rx3d Bx8h+ 8. Sx8h B*2e 9. Rx3b+ Sx3b 10. S-3h S-3c 11. P-1f .
MORIUCHI selected the 2nd variation .

(diagram 3)

11...P-1d
12. K-6h P-2d
13. G*3e S-4d
14. Gx2e Px2e
15. B*2c G*2h
16. B*3b G-5b
17. Bx2a+ P-2f
18. B-3d+ P-2g+
19. Sx2g Gx2g
20. P*2h Gx2h
21. +Bx(2a)4c Gx4c
22. +Bx4c P*4h
23. G-5i R*3h
24. N*5h R-3i+
25. G*6a K-4a
26. Gx7a P-4i+
27. G-6i +P-4h
28. +Bx4d +Px5h
29. Gx5h S*6i
30. S*4c N*6e
31. S*4b Rx4b
32. Sx4b+ Kx4b
33. R*4c K-5a
34. Rx5c+ K-4a
(diagram 3)

After 68 moves MIURA won this game .

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