(3101) Anand,Viswanathan (2790) - Shirov,Alexei (2723) [C78]
Corus A Wijk aan Zee NED (10), 27.01.2010

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 b5 6.Bb3 Bc5 7.a4 Rb8 8.c3 d6 9.d4 Bb6 10.a5 Ba7
[10...Nxa5 has long been known to be bad or at least excessively dangerous: 11.Rxa5 Bxa5 12.dxe5 Ng4 13.Bg5 f6 14.exf6 gxf6 15.Bh4 c5 16.h3 h5 17.Nbd2 Rb7 18.Bd5 Rg7 19.e5 Nxe5 20.Nxe5 dxe5 21.Ne4 Rh6 22.Qf3 Rgg6 23.Rd1 Kf8 24.Be6 Qe8 25.Bxc8 Qxc8 26.Bxf6 Kg8 27.Bg5 Qf8 28.Qxf8+ Kxf8 29.Bxh6+ Rxh6 30.Nxc5 Bb6 31.Nd7+ Ke7 32.Nxe5 Re6 33.Nd3 Rd6 34.h4 Kf6 35.Kf1 Kf5 36.g3 a5 37.Ke2 Re6+ 38.Kd2 Rd6 39.Re1 Kg4 40.Re4+ Kf3 41.Rf4+ Kg2 42.Rf5 b4 43.c4 Bd4 44.Rxa5 Bxb2 45.Rxh5 Bc3+ 46.Kc2 Kf3 47.Rb5 Rd4 48.Nxb4 Rxc4 49.Kd3 Rc8 50.Rf5+ Kg2 51.Nc2 Kh3 52.Ne3 Bb4 53.h5 Rc6 54.Rb5 Bc5 55.h6 Bxe3 56.Rh5+ Kg4 57.Rh4+ Kf3 58.fxe3 Rd6+ 59.Kc4 Rd8 60.h7 Rh8 1-0 Dolmatov,S (2608)-Sivokho,S (2469)/St Petersburg 2000]

11.h3 0-0 12.Be3 Ra8 13.Nbd2 Bb7 14.Re1 Re8 15.Ng5 Re7N
[15...Rf8 16.Nf1 Ne7 17.dxe5 Bxe3 18.Bxf7+ Rxf7 19.Nxf7 Bxf2+ 20.Kxf2 Qf8 21.Nh6+ gxh6 22.exf6 Qxf6+ 23.Kg1 Ng6 24.Ne3 Re8 25.Nd5 Qe5 26.Qd4 c5 27.Qxe5 Rxe5 28.Rad1 Kg7 29.Ne3 Bxe4 30.Rxd6 1-0 Kosteniuk,A (2516)-Kosintseva,N (2486)/Konya 2009]

16.d5 Nb8 17.Bxa7 Rxa7 18.Nf1 c6 19.Ne3 cxd5 20.exd5 h6 21.Nf3 Rc7 22.Nd2 Nbd7 23.c4 Nc5 24.Bc2 b4 25.Ndf1 Bc8 26.Ng3 g6 27.b3 Nh7 28.Ne4 f5 29.Nxc5 Rxc5 30.Qd2 Rb7 31.Bd3 f4?!
[31...e4= ; 31...Rxa5? 32.Rxa5 Qxa5 33.c5!+/- dxc5? (33...Qxc5?? 34.Rc1+- ) 34.Nc4 Qd8 35.Nxe5+- ]

32.Nc2 Qg5
[32...Rxa5 might be playable, but it's risky and certainly isn't the reason Black played ...f4.]

33.Ra4 Bxh3 34.Bf1
[34.f3 was a better choice.]

[34...Qg4 35.Rxb4 Ng5 36.Kh2 Rxb4 37.Qxb4 Bxg2 38.Bxg2 f3 39.Bf1 Qh4+ 40.Kg1 Qg4+= is one of several lines ending in perpetual.]

[35.Rxb4+/- ]

35...e4 36.fxe4 Re7 37.Nd4
[37.e5 Rxe5 38.Rxe5 dxe5 39.Rxb4 Ne4 40.Qe2= /+=]

37...Nxe4 38.Qd3 Bf5 39.Ne6?
[39.Rxb4= ]

[Shirov could have won with 39...Ng3! 40.Nxg5 (40.Qf3 Qh4 41.Rxb4 Bxe6 42.dxe6 Re5-+ ) 40...Rxe1! 41.Qf3 hxg5! 42.Rxb4 Rxf1+ 43.Qxf1 Nxf1 44.Kxf1 Rxa5-+ ; 39...Bxe6 wouldn't have won, but it drew: 40.Qxe4 Rcc7 41.dxe6 (Not forced, but nothing's better) 41...Qc5+ 42.Kh1 Qh5+ with a perpetual.; 39...Qh4? loses to 40.Rxe4 ; but first interpolating the flashy 39...f3 gives Black another way to draw: 40.Qxf3 (40.Rxe4 f2+ 41.Kxf2 Rxe6 42.dxe6 Bxe4 43.Qxe4 Qd2+ 44.Kg1 Rf5 45.Qa8+ Rf8 46.Qd5 Qf2+ 47.Kh2 Qh4+ (47...Rf4 is more fun, but also drawn: 48.e7+ Kg7 49.Qg8+! Kxg8 50.e8Q+ Kg7 51.Qe7+ Kg8 52.Qe8+ Kg7 53.Qe7+ Rf7 54.Qxd6 Qh4+ 55.Kg1 Qf2+ 56.Kh2= ) 48.Kg1= ; Note that the obvious 40.Nxg5?? loses just as obviously: 40...f2+ 41.Kh2 fxe1Q-+ ) 40...Qh4 White has loads of options, but they all seem to lead to equality. Here's one: 41.Rxe4 Qxe4 42.Qxe4 Bxe4 43.Nxc5 dxc5 44.Ra2= ]

40.dxe6+- Re5 41.Rxb4 Qd8 42.Qd4 f3 43.gxf3 Ng5 44.Rxe5! Nxf3+ 45.Kf2 Nxe5
[45...Nxd4 46.e7 Qe8 47.Rb8 Kf7 48.Rxe8 Kxe8 49.Rd5 Nxb3 50.Rxd6 Nxa5 (50...Kxe7 51.Rxa6+- ) 51.Rxa6 Nb3 52.Ra7+- ]

46.Rb6 Bxe6 47.Be2 Qf6+ 48.Ke3 Qg5+ 49.Qf4 Qg1+ 50.Kd2 Qa1 51.Rxd6 Qxa5+ 52.Kd1 g5?
It's lost anyway, but this expedites matters.

53.Qd4 Kf7 54.Rd5
A cute way to finish.

54...Bxd5 55.Qxe5 1-0