SUGAI won with his new style Sanken Bisha opening

Shogi News ;

The 58th Oui sen 7 games title match

The 1st game of the Kisei sen title match between HABU Yoshiharu and SUGAI Tatsuya had started 9:00 A.M. (JST) , 5th July 2017 .

You  can  see  the  game  record  on  the  Web  .
http://live.shogi.or.jp/oui/kifu/58/oui201707050101.html
(Flash version ,  written  in  Japanese  language  )

http://kifulog.shogi.or.jp/oui/
(The official blog of  the  Oui  sen  ,  written  in  Japanese language)


Sente:  HABU Yoshiharu (Oui , Kisei , Oza)

Gote : SUGAI Tatsuya (7 dan )

diagram 1

1.P-7f   P-3d    
2.P-9f   P-9d    
3.P-2f   P-5d    
4.P-2e   R-3b
5.K-6h   Bx8h+  
6.Sx8h   S-4b    
7.K-7h   R-2b    
8.S-4h   K-6b
9.P-4f   K-7b  
10.S-4g   K-8b  
11.G4i-5h S-7b  
12.S-7g   S-5c
13.K-8h   P-8d  
14.S-5f   N-3c  
15.B*6f   G-3b  
16.Bx8d   S-6d
17.P-3f   P-5e  
18.S-4g   B*6b  
19.G5h-6h R-2a  
20.P-5f
(diagram 1)

After pushing 9th file Pawns , SUGAI pushed 5th file Pawn with 3...P-5d , and he seemed to select Gokigen Nakabisha . But , he ranged his Rook with 4...R-3b making his original Sanken Bisha formation .

SUGAI exchanged his Rook with  5...Bx8h , and moved the Rook again with 7...R-2b , transposing  to Kakukoukan Furibisha . He made the mino gakoi with 11...S-7b  and pushed the Pawn with 13...P-8d to develop his kakoi to Ginkanmuri . But replying SUGAI's 13...P-8d , HABU dropped his Bishop with 15.B*6f to capture the 8d-Pawn . SUGAI sacrificed the Pawn  and aimed at HABU's Bishop .  HABU crashed the 5th file Pawn with 20.P-5f to make 8d-Bishop's way .

diagram 2

20...Px5f
 21.Sx5f   R-5a  
22.R-5h   P*5e  
23.S-4g   S-8c  
24.B-3i   G-7b
 25.G6i-7h P-7d  
26.L-9h   G-4b  
27.K-9i   G-5c  
28.P-3e   G-4d
 29.Px3d   Gx3d  
30.R-3h   P*3e  
31.R-5h   P-4d  
32.S-8h   R-5d
 33.P-6f   P-4e  
(diagram 2)

After the Pawn exchange in 5th file , SUGAI moved his Rook with 21...R-5a aiming at  HABU's 5f-Silver , and HABU also moved the Rook with 22.R-5h to defend the Silver .

Forced to back HABU's Silver by 22...P*5e  ,  SUGAI developed  his Mino gakoi to Ginkanmuri , HABU also started developing his Kakoi to Ibisha Anaguma . But before completed it , HABU attacked the 3rd file with 28.P-3e .

SUGAI advanced his left Gold to defend the 3rd file . HABU closed the hatch of the Ibisha Anaguma with 32.S-8h to finish making it , and SUGAI advanced the 4th file Pawn to start attacking .

diagram 3

34.B-2h   B-7c  
35.R-5i   G-4d  
36.G6h-6g L-9b
37.P-8f   K-9a  
38.P-8e   P-7e  
39.G6g-7g Px7f  
40.Gx7f   S-7d
41.S-7g   G-8b  
42.S-8f   B-6b  
43.P*7e   S-8c  
44.Px4e   Gx4e
45.P-8d   Bx8d  
46.P-6e   P*8e  
47.Px6d   Px8f  
48.P*8h   Rx6d
49.P*6e   R-5d  
(diagram 3)

During advanced the attacking pieces , SUGAI  developed his Kakoi again to Ginkanmuri Anaguma . They roughly attacked each other , and SUGAI's attack seemed more close to HABU's camp  .

diagram 4

50.S-4f   P-8g+  
51.Px8g   P*8f  
52.S*7a   S*9c
 53.Px8f   P*8g  
 54.Sx8b=  Sx8b  
 55.Gx8g   S*6g  
56.G*8h   Sx7f+
 57.Gx7f   G-5f  
58.G7f-7g B-7c  
59.G7g-8g G-6g  
60.P-6d   Bx6d
 61.S*6e   P*7g  
 62.Sx6d   P-7h+  
63.S4fx5e P*7f  
64.B*7c   R-5b
 65.Bx8b+  Rx8b  
66.S*7a   B*7g  
 67.Sx8b=  Kx8b  
 68.R*4b   G*7b
 69.Nx7g   Px7g+  
70.S-6f   +P7gx8h
71.Gx8h   +Px8h  
72.Kx8h   G*7h
 73.resigns
(diagram 4)

6:05 P.M. (JST) , 6th July 2017 , after 144 moves , SUGAI  won the game .