rafal.kostecki: Vladimir Kramnik (2783) - Fabiano Caruana (2805) [D78]
Dortmund Dortmund GER (5), 03.07.2015
[Houdini 1.5a w32 (5m)]
D78: Fianchetto Grünfeld: 6 0-0 c6
1.Nf3 d5 2.g3 [2.d4 c5= ]
2...g6 [2...Nc6 3.a3= ]
3.Bg2 Bg7 4.d4 Nf6 5.0-0 0-0 6.c4 c6 7.Nbd2 a5 8.b3 a4 9.Ba3 axb3 10.axb3 Bf5 11.Nh4 Be6 12.Re1 Ne4 13.Bxe4 dxe4 14.Nxe4 Qxd4 Black has the pair of bishops. [Not 14...Bxd4 15.Bxe7 Rxa1 16.Qxa1 Qxe7 17.Qxd4
]
15.Qc2 [15.Qxd4!? has some apparent merit 15...Bxd4 16.Bb2 Rxa1 17.Bxa1= ]
15...Bf5
16.Nxf5 gxf5 17.Ng5 Qg4 18.f4 Bxa1 19.Rxa1 h6 Black threatens to win material: h6xg5 [19...Rd8 20.Kg2 c5 21.h3
]
20.Nf3 Nd7 [20...c5 21.Qd1
]
21.Rd1 White threatens to win material: Rd1xd7
21...Rxa3 22.Rxd7 Qh3 White king safety dropped
23.Qc3 [23.Rxb7? is inferior since it leads to 23...Ra1+ 24.Kf2 e5
]
23...e6 24.Rxb7 Rfa8 25.Kf2 Ra1 26.Ke3 White king safety improved
26...Rf1 27.Qf6 White has a mate threat
27...Rf8 28.Rd7 [28.Kd4 Rxf3 29.exf3 Qxh2= ]
28...Rb1 Black threatens to win material: Rb1xb3
29.Rb7 c5 White has a new backward pawn: b3
30.Rb5 Rf1 31.Nd2 White threatens to win material: Nd2xf1 [31.Rxc5!? should not be overlooked 31...Rxf3+ 32.exf3 Qxh2 33.Rc7= ]
31...Rc1
32.Qb2 Rd1 33.Qc2 [33.Nf3!?
]
33...Rh1 34.Nf3 Qg2 35.Qc3?? another step towards the grave [>=35.Qd3
]
35...Rf1
36.Qf6 [36.Qa5 does not win a prize 36...Qf2+ 37.Kd3 Ra1 38.Qxa1 Rd8+ 39.Nd4 Rxd4+ (39...cxd4?! 40.Qc1
) 40.Qxd4 Qxd4+ 41.Kc2 Kg7
]
36...Rf2 37.Kd3 [37.Nd4 hoping against hope 37...cxd4+ 38.Kxd4 Rxe2 39.Kc5 Qf2+ 40.Kb4
]
37...Rxe2 38.Ng5 [38.Qxf7+ does not help much 38...Rxf7 39.Rb8+ Kg7 40.Rg8+ Kxg8 41.Nd2 Rxd2+ 42.Kc3 Rc2+ 43.Kd3 Qe4# ]
38...Rd2+ [38...Rd2+ 39.Kc3 Rc2+ 40.Kd3 Qe2# ; 38...hxg5?! succumbs to 39.Qxg5+ Kh7 40.Qh5+ Kg7 41.Qg5+ (41.Qxe2?? greedy! 41...Rd8+ 42.Ke3 Qg1+ 43.Kf3 Qh1+ 44.Ke3 Rd4
) 41...Kh8 42.Qh5+ Kg8 43.Qg5+ (43.Qxe2 again White cannot control his thirst for material 43...Rd8+ 44.Ke3 Qg1+ 45.Kf3 Rd1
) 43...Kh8 44.Qh6+ Kg8 45.Qg5
] 0-1