Tuesday, October 26, 2004

Round 6: Slive-Mac Intyre 0-1

Paul Mac Intyre

Mac Intyre takes advantage of several mistakes by Slive to comfortably win a tactical game with a number of interesting material imbalances. Paul provided the annotations below.

[Event "BCC Championship"]
[Site "Somerville, MA USA"]
[Date "2004.10.24"]
[Round "6"]
[White "
Slive, Alex"]
[Black "
Mac Intyre, Paul"]
[Result "0-1"]
[WhiteUSCF "
2039"]
[BlackUSCF "
2303"]
[ECO "
E94"]
[Opening "King’s Indian"]
[Variation "Classical"]
[Annotator "Mac Intyre"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6 6.Be2 Nbd7 7.O-O e5 8.Bg5

[This is a very rare move and doesn't seem to really gain any advantage]

8…h6 9.Be3 c6

[This move is actually extremely clever. I think a classical approach to this position would be 9....Ng4 10.Bc1 f5, but after sitting and looking at that position, I didn't feel all that comfortable with it. Instead, I correctly predicted that my opponent's next move would be 10.h3, after which I planned to transpose to the exd4 systems. In these systems, White naturally wants to play f3 to bolster the e-pawn. However, having already played h3, the dark squares on the kingside would become uncomfortably weak]

10.h3 exd4 11.Nxd4 Re8 12.Qd2?! Nxe4 13.Nxe4 Rxe4 14.Bf3 Rh4!

[The correct plan. There is no clear way to take advantage of the offside position of this rook]

15.Nxc6 bxc6 16.Bxc6 Rb8 17.Qxd6 Be5 18.Qd5 Qc7 19.f4 Bg7

[Better was 19...Bxb2, but Black was playing conservatively and still holds a large advantage]

20.Rad1 Nf8 21.Qd8

Slive-Mac Intyre Rd. 6 Diagram

21…Qxc6 22.Qxh4 Rxb2 23.Rf2 Rxf2 24.Qxf2 Qxc4 25.Bxa7

[This ‘equalish’-looking position is actually very favorable, and probably winning, for Black. The problem is that White will be forced to remain completely passive, while Black has quite a few ways to continue improving his position]

25…Ne6 26.f5? gxf5 27.Qxf5? Qa4!

[...and the rest is easy]

28.Rc1 Qxa7+ 29.Kh1 Bb7 30.Qb5 Qe3 31.Rf1 Qxh3+ 0-1

1 Comments:

Blogger alex slive said...

A few comments:

• In case it isn't obvious, Paul played the correct 17...Be5. 17...Rxb2 leads to 18.Rad1 with pressure and a pin on the d-file.
• Maybe 18.Qd3 was better than 18.Qd5.
• I think the real critical point of the game was 21.Qd8. I had a major strategical alternative in 21.b3, solidifying the position, but remaining down in material. I don't think Black is clearly winning - White has to take some time to reorganize his Q and Bc6, but will probably have some play against the R on h4, which is either misplaced or in a good position(?).
• I agree with Paul that the ending is better for Black, but 26.f5? is a real lemon. (Notice that 27...Qa4! not only attacks 2 pieces, but attacks 2 pieces with check!) White has a tough game but might be able to hold on after the correct 26.Be3 followed by Rd2.
• Good game!

8:03 PM  

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