(1) Casella,M (2343) - Ma,W (2360) [B42]
US Amateur Team West (4), 16.02.2003
[Ma]

Before the tournament I was telling my teammates that it would probably be the last tournament I would play in a while – after all, there are more important things in life than chess - but they said they would not allow me to if we would win the event. Unlikely as that seemed, it was worth a good laugh. To our own amazement, we kept winning. Like against Casella's very strong team, Lords of the Boards.

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6
The Kan is one of my favorite openings, because it is positionally sound and very flexible. Unlike in the Taimanov, the b8 knight can go to either c6 or d7. Although slow, it is by no means passive. Often, as soon as White attacks, he faces a ferocious counterattack. Or, as this game shows, Black may start attacking himself.

5.Bd3 Nf6 6.0-0 Qc7 7.Qe2 d6 8.c4 g6 9.Nc3 Bg7 10.Rd1 0-0 11.Nf3 Nc6 12.h3 Nd7 13.Be3
The main line of the Kan. White keeps Black confined by controlling d5, while pressuring him on the d-file and various diagonals, hoping that something will drop off. The alternative here, [ 13.Bf4 , does not make Black too unhappy after 13...Nce5 14.Rac1 b6 15.b3 Bb7 16.Bb1 f5!? 17.Nd4 Rae8 18.Qd2 Nf7 , Luther-Stefansson, 1992 (0-1,38).]

13...b6 14.Rac1 Bb7 15.Bb1 Nc5!
This logical move helps to curtail White's queenside ambitions and should thus be preferred over the premature piece exchange 15... Nce5.

16.Qd2 Rad8
Both sides have completed their development, and White has to decide what he wants in life. Van den Doel-Shaked, 1998 featured the peculiar 17.Nh2?! Qe7 18.Ne2 a5 19.b3 Nb4 20.Nc3, and Black took the lead with 20... d5! (0-1, 69). 17.Bh6 Ne5 18.Bg7 Nf3 19.gf3 Kg7 20.b4 Nd7 21.Qd6 Qc4 was Lane-Chuchelov, 1999 (1/2-1/2, 35). In last year's Southern California State Championship, Michael had tried 17.b3 Qe7 18.Bg5 against me, but after 18... Bf6 19.Bh6 Rfe8 20.Qe3 Qc7 21.Qf4 Bg7 (Bh6; Qe7) nothing bad was gonna happen (0-1,45). In this game, he wants to prevent an easy Qe7, an interesting idea.

17.Bg5 Rd7 18.b3
The slightly odd rook on d7 forces Black to think up a solid activity pattern. White may play Qe3 and double rooks on the d-file, or exchange dark-squared bishops first. For Black, playing ... d5 is always a long-term plan, but he can also start wild actions along the f-file. Moreover, he wants to have the option of playing ... e5 against Bf4, without having to worry about Nd5. There is a single move which fits into all of these plans.

18...Qb8!
... d5 is one step closer, now that the queen has left the c-file. The queen can go and support ... f5 by Qe8. After ... e5, Nd5 will not win a tempo. And finally, after 19.Bf4 Black has the tactical defense 19... Qd8! (20.Bd6? Nd4 -/+).

19.Qe3
[ 19.Bh6 would not be totally ridiculous here, with the plan 20.Bg7 Kg7 21.Qb2 and 22.b4. Black has for instance 19...Bxh6 20.Qxh6 f6 21.Rd2 Qd8 22.Rcd1 Qe7 , when I don't see how either side can make progress. In the game, instead of the preparatory move 19... Qe8, I decide to attack on the f-file without allowing this bishop exchange, and that this is even worth a pawn. I still don't know if it is correct.]

19...f5!? 20.exf5 gxf5 21.Na4 e5 22.Nxb6 Rdf7 23.Qd2
Critical is [ 23.Nd5 f4 with the variations: 24.Qe1 ( 24.Qd2 e4 25.Ne1 ( 25.Nh4 ) 25...Nd4 transposes to (a variation in) the game; 24.Qe2 e4 25.Bxe4 ( 25.Ne1 f3 26.gxf3 Nd4 with a strong attack.) 25...Re8 26.Nd2 Nd4 27.Qe1 f3 28.gxf3 Nxf3+ 29.Bxf3 Rxe1+ 30.Rxe1 Nd3-/+ ; 24.Qc3!? h6 25.Bh4 e4 26.Qc2 Re8 27.b4 Nd3 28.Rxd3 exf3 29.Ra3 Nd4 30.Qh7+ Kf8 31.Bg6 Ne2+ 32.Kh2 Bxd5 33.cxd5 Nxc1 34.Bxf7 Kxf7 35.Rxf3 Qxb4 ( 35...Ne2 36.Qf5+ Kg8 37.Qg6= ) 36.Qf5+ Kg8 37.Bf6= ) 24...e4 25.Bxe4 Re8 26.Nd2 Nd3 27.Bxd3 Rxe1+ 28.Rxe1 and white is probably better. Because of this line, 23... e4 may be a better option, with a horribly incomprehensible game.]

23...e4 24.Nh4?
On e1 the knight is not misplaced.

24...Nd4 25.Nd5 Nce6 26.Be3 Qd8 27.g3?
[ 27.Bxd4 Nxd4 ( 27...Bxd4 28.Qh6! ) 28.g3 is better, as the bishop is not happy on e3 anyhow. 28...Re8 29.Kg2 f4 30.Re1 is unclear then. Now Black is suddenly winning.]

27...f4 28.Bxe4
[ 28.Bxd4 Bxd4 29.Kh1 fxg3 30.fxg3 e3 31.Qd3 Qg5 and White has several problems.]

28...fxe3 29.Qxe3 Rxf2 30.Qxf2 Rxf2 31.Kxf2 Ng5 32.Bg2 Qf8+ 33.Ke3
[ 33.Nf4 Be5 ]

33...Qe8+ 34.Kf2 Qf7+ 35.Ke3 Qe6+ 36.Kf2 Nxh3+ 37.Bxh3 Qxh3 38.Ne7+ Kf7 0-1