55th Osho Match Game 3

[Black "Habu Yoshiharu, Osho"]
[White "Sato Yasumitsu, Challenger"]
[Event "55th Osho-sen, Game 3"]
[Date "January 26th and 27th 2006"]
1.P7g-7f     00:00:00  00:00:00

This game was played in the Northern prefecture of Iwate. 
Interesting was that Habu had not been there since a skiing 
trip when he was in high school. Habu has played more than 
200 title match games in his career, but this was the first 
time he played one in Iwate...

2.P3c-3d     00:00:00  00:02:00
3.P2g-2f     00:01:00  00:02:00
4.G4a-3b     00:01:00  00:02:00
5.G6i-7h     00:09:00  00:02:00
6.P8c-8d     00:09:00  00:02:00
7.P2f-2e     00:19:00  00:02:00
8.P8d-8e     00:19:00  00:02:00
9.P2e-2d     00:25:00  00:02:00
10.P2cx2d    00:25:00  00:02:00
11.R2hx2d    00:25:00  00:02:00
12.P8e-8f    00:25:00  00:02:00
13.P8gx8f    00:27:00  00:02:00
14.R8bx8f    00:27:00  00:02:00
15.R2dx3d    00:35:00  00:02:00
16.B2bx8h+   00:35:00  00:02:00
17.S7ix8h    00:35:00  00:02:00
18.R8fx7f    00:35:00  00:02:00
19.S8h-7g    02:00:00  00:02:00
20.R7f-7d    02:00:00  00:03:00
21.R3dx7d    02:00:00  00:03:00
22.P7cx7d    02:00:00  00:03:00
23.B*4f      02:00:00  00:03:00
24.P6c-6d    02:00:00  00:15:00
25.R*2h      02:29:00  00:15:00
26.N2a-3c!?  02:29:00  01:36:00

Diagram 1

The normal moves here are 26.P*2b (for example played in a Kisei 
title match game between Habu and Yashiki, 15 years ago) or 26.S2b. 
After 26.N3c, the black rook can promote, but this is an empty 
promotion and not very effective. Sato wants to use the knight in 
attack in typical positive style.

27.R2h-2a+   03:44:00  01:36:00
28.P*2h      03:44:00  02:39:00
29.S3ix2h    04:09:00  02:39:00
30.R*2b      04:09:00  03:04:00
31.+R2ax2b   04:09:00  03:04:00
32.S3ax2b    04:09:00  03:05:00
33.P3g-3f    04:09:00  03:05:00
34.P*8f?!    04:09:00  04:57:00

Diagram 2

This was the sealed move and Sato took almost two hours for it. 
Actually, the move took longer, because there was also the one hour 
interval for dinner on the first day. Even though it is a rule that 
play is adjourned between 19:00 and 20:00 on the first day, this 
rule is almost never applied because the player to seal the move 
will do so before seven o'clock. A rare case, but not so strange 
in this position, because white has a number of options here. 34.P*8f, 
the move that Sato put in the envelope, surprised everyone. Kato 
Hifumi (9-dan) didn't like it much, because after 35.P*8h next, white 
no longer has the option of attacking with P*8h himself. He expected 
34.N7c, to play the double knight attack N4e and N6e. A positive plan 
that suits Sato's playing style very well. Habu said after the game 
that he planned 35.R*8a after 34.N*7c, but Kato thought that white 
doesn't have much to fear from this attack. The reason Sato played 
34.P*8f was that he wanted to take away the black attacking options 
P*8b or P*8d. This might have been a little too cautious. Habu expected 
34.P7e, which seems to be the best move. The threat is P7f Sx7f P*8h 
Gx8h R*7i and a move like 35.Bx6d fails to the double attack 36.R*8d.

35.P*8h      04:33:00  04:57:00
36.S7a-7b    04:33:00  05:00:00
37.K5i-5h    04:48:00  05:00:00
38.N8a-7c    04:48:00  05:18:00
39.B4fx6d    05:00:00  05:18:00
40.N3c-4e    05:00:00  06:29:00
41.S7g-6f    05:24:00  06:29:00
42.K5a-4b!?  05:24:00  06:31:00

Diagram 3

White is in trouble and Sato decides to put in a little trickery. This 
king move looks very dangerous because of a potential knight drop on 3d.

43.P*7e?     06:03:00  06:31:00

Habu takes the bait and goes for the knight right away. Correct was 
43.P*2d which threatens N3g next because white no longer has the double 
attack R*2d. After N3g, white cannot avoid the exchange of the knights, 
so he has to do something about N*3d which is not easy.

44.P*3g!     06:03:00  06:58:00

Threatens R*2d next, also if this pawn is taken by knight or silver. 
The game now suddenly becomes a dogfight.

45.B6d-5e    07:00:00  06:58:00
46.N7c-6e    07:00:00  07:43:00
47.N2ix3g    07:06:00  07:43:00
48.N4ex5g+   07:06:00  07:47:00
49.S6fx5g    07:06:00  07:47:00
50.B*6i      07:06:00  07:48:00
51.K5hx6i    07:22:00  07:48:00
52.N6ex5g=   07:22:00  07:48:00
53.K6i-6h    07:22:00  07:48:00
54.N5gx4i+   07:22:00  07:48:00
55.P*5d      07:24:00  07:48:00
56.R*5f?     07:24:00  07:58:00

Diagram 4

The losing move. It looks tempting, because it attacks the bishop on 
5e and also threatens mate (S*7g Gx7g R5i+ K7h G*7i). If Sato would 
have had a little more time, he would have seen the problem and played 
the correct 56.R*3h. Then 57.K7g and now 58.G*6e is a mating threat and 
an attack on the bishop. However, then 59.Px5c+ Kx5c N4e K5b B*6d 
threatens mate while defending against the mating threat, so white 
loses. Correct is 58.Px7e, which is also threatening mate. Then 59.Px5c+ 
Kx5c N4e K5d R*5c Kx4e and the white king escapes. It seems that after 
58.Px7e, black has to defend with N*6h, but the resulting position is 
unclear and very hard to play with either side with the limited time 
on the clock. Sato will have been kicking himself for spending so much 
time on the sealed move, time he really needed in this position.

57.P5dx5c+   07:25:00  07:58:00
58.K4bx5c    07:25:00  07:58:00
59.N3g-4e    07:44:00  07:58:00
60.K5c-5b    07:44:00  07:59:00
61.R*5d      07:46:00  07:59:00

Defends the attacked bishop with check...

62.K5b-4a    07:46:00  07:59:00
63.N*5c      07:50:00  07:59:00
64.K4a-4b    07:50:00  07:59:00
65.B*1e      07:50:00  07:59:00

Defends against the mating threat with check...

66.P*2d      07:50:00  07:59:00
67.N5cx6a+   07:52:00  07:59:00
Resigns      07:52:00  07:59:00

Final Diagram

The only move to defend is 68.Sx6a, but then the unfortunate rook on 5f is 
lost after 69.B6d. A short game, but a lot of excitement until Sato threw 
it all away with one single move. Habu is now 3-0 up, winning his 16th 
official game in a row. It is hard to imagine Sato making any type of 
run against Habu in this type of groove.