Too hot... but not on chessboard

It's too hot here in Bergamo, Italy. Almost 35 degrees: and we are not in August! I guess this is one of the reasons why my lap top decided to leave me: yes, I think it is almost dead :-(. One of the main problems connected with this situation, besides the fact I've never created a backup copy of my files, is that I can only use my other pc, which is in my bedroom. And I can't use it until late hours... So, till my lap top doesn't rise again or I don't buy a new one, I think I'll have to be (a bit) shorter than usual in my posts.
The Frank K. Berry 2007 US Championships will come to an end tomorrow in Stillwater, Oklahoma. Two Alexander, Onischuk and Shabalov, lead with 6 points out of 8 with only one round to go. Official site: http://www.monroi.com/tournamentgate/USChamp07.
Slovakian Sergei Movsesian leads the 2007 Bosna tournament in Sarajevo, after beating Alexander Morozevich with Black pieces in the 4th round. Borki Predojevic is second on 2.5, Moro and Sokolov (who lost to Short) third on 2. Official site: http://www.skbosna.ba.
Icelandic IM Hedinn Steingrimsson and Scottish Matthew Peat (not rated player!) lead the 2007 Capo d'Orso Festival in Palau, Italy, with a perfect score after round 4. Today Steingrimsson beat the 14 y.o. IM Fabiano Caruana: scoring a GM norm will now be very difficult for the young Italian prodigy. Top rated players are not having their sweetest times: Elo favourite Jonathan Rowson has only 2 points, Italian champion Michele Godena 2.5, Romanian Mihail Marin and Ecuadorian Franco Matamoros 3. I think the degrading accelerated swiss system (the same in use at Cappelle la Grande) has played a decisive role up to now. We'll see what happens in the last rounds. Official site: http://asd.caissa.it/portomannu/vega/index.html.
And now here is the game between the two leaders of the 2007 US championship...

Onischuk,Al (2663) - Shabalov,A (2606) [D44], Stillwater 20.5.2007
1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 hxg5 10.Bxg5 Nbd7 11.exf6 Qa5 12.Be2 Bb7 13.0–0 0–0–0 14.Qc1 c5 15.Rd1
15.dxc5 Bxc5 16.Qf4 Ne5 has been played a couple of times before. The text move is a novelty according to my database.
15...cxd4 16.Rxd4 Bc5?!
A natural move, but 16...Qb6 was perhaps more precise.
17.b4! Qxb4?
After 17...Bxb4 18.Nxb5 Qxb5 19.Qxc4+ Qxc4 20.Rxc4+ Bc5 21.Rac1 Bd5 22.Rxc5+ Nxc5 23.Rxc5+ Kb7 24.Be3 White has a better position, but Black survives. Now Onischuk takes a very strong initiative.
18.Rb1 Qxb1
After 18...Qa5 19.Nxb5 Bxd4 20.Qxc4+ Nc5 (20...Bc5 21.Nd6++-) 21.Nxd4 Qc7 22.h4 White can only win.
19.Qxb1 Bxd4 20.Nxb5 Ne5?!
20...Bc5 21.Bxc4 Rdg8 22.Qc1 a6 23.Nc3 was a bit better, but White would have won anyway.
21.Bf4 Nc6 22.Nd6+ Rxd6 23.Bxd6 c3 24.Bf3 Bb6 25.Bb4 Bd4 26.Bxc3 1–0
If 26...Bxc3 then 27.Bxc6 Bxc6 28.Qc2 Rg8 (28...Rd8 29.h4) 29.Qxc3 and White easily wins.

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