Topalov - Anand game 1 analysed by the strongest engines

[beram]

In a little analysis experiment with the F12 gui - compare analysis, at 30 sec a move (on my T8300 2100 Mhz (Fritzmark 6,29) I analysed the first WC game between Topalov and Anand
From move 16 Rac1 to 24 Nxf6! The decisive one by Topalov, Firebird 1.2 finds 6 out of 9 Topalov moves. Stockfish 1.7.1 JA comes to 4 out of 9 and Rybka 3 find 3 out of 9.
In particular the moves 17. f4 and 20. Nh5 + ! Firebird 1.2 finds found very soon whereas the others don’t.
When Stockfish (ply20) and Rybka (ply14) can think longer they come up with 20. Nh5! as well

(2) Topalov (move 15 up),Veselin (2805) - Anand,Viswanathan (2787) [D87]
World Chess Championship Sofia/Bulgaria (1), 24.04.2010
16.Rac1 [FireBird 1.2 w32: 16.f4 Qd6 17.Rac1 f6 18.f5 Qe5 19.Qf4 Qxf4 20.Nxf4 Rf7 21.Ne2 Rd7 22.fxg6 hxg6 23.Bb5 Re7 24.Nxd4 Rxe4 25.Rc7+ Kh6 26.Nc6 a6 -0.09/18 ; Rybka 3 32-bit: 16.Qb2 Qf6 17.f4 Rd8 18.e5 Qe7 19.Rac1 Bb7 20.Rfd1 Qd7 21.Bb5 Qg4 22.Nxd4 Qxf4 23.e6 Kg8 24.Rd3 -0.08/13 ; Stockfish 1.7.1 JA: 16.Rfd1 Bb7 17.Qb4 Qf6 18.Rac1 Rfd8 19.f4 Kg8 20.a3 Nc6 21.Qb2 Qe6 22.e5 Qg4 23.Be4 Rac8 24.Bf3 Qh4 -0.24/18 ] 16...Qd6 17.f4 [FireBird 1.2 w32: 17.f4! Bb7 18.e5 Qd5 19.Ng3 Rfc8 20.Ne4 Rxc1 21.Rxc1 Rc8 22.Re1 Nc4 23.Bxc4 Rxc4 24.f5 h6 25.Nd6 Ra4 26.Ne8+ Kf8 27.Nf6 Qa5 28.Qxh6+ Ke7 29.Ng8+ Ke8 30.Qh4 g5 31.Nf6+ Ke7 32.Ng8+ Kf8 33.Qh6+ Kxg8 34.Qxg5+ Kf8 35.Qd8+ Kg7 36.Qf6+ Kg8 37.Qg5+ 0.00/21 ; Rybka 3 32-bit: 17.Rfd1 Rd8 18.Bc4 Nxc4 19.Rxc4 Qe5 20.Rxd4 Rxd4 21.Nxd4 Qxe4 22.Qc3 Kh6 23.Re1 Qd5 24.Qc1+ Kg7 25.Qc3 Kh6 26.Qc1+ Kg7 27.Qc3 Kh6 28.Qc1+ Kg7 29.Qc3 Kh6 30.Qc1+ Kg7 31.Qc3 Kh6 32.Qc1+ 0.00/14 ; Stockfish 1.7.1 JA: 17.Rfd1 Bb7 18.Bb5 a6 19.Bd3 Rad8 20.Rb1 Qf6 21.f3 Rfe8 22.Rdc1 Rd6 23.Rc7 Kg8 24.Rbc1 Re7 25.Rc8+ Bxc8 26.Rxc8+ Kg7 27.Bxa6 -0.16/18 ] 17...f6 18.f5 [FireBird 1.2 w32: 18.f5 Qe5 19.Rf3 g5 20.Bb1 Bd7 21.Qxd4 Qxd4+ 22.Nxd4 Rfc8 23.Rfc3 Rxc3 24.Rxc3 Rc8 25.Rxc8 Bxc8 26.Bd3 Bd7 27.Kf2 Nc6 28.Ke3 Ne5 29.Bb5 Ng4+ 30.Kd3 Nf2+ 31.Ke3 Ng4+ 0.00/21 ; Rybka 3 32-bit: 18.Bc4 Bb7 19.Nxd4 Nxc4 20.Rxc4 Kh8 21.Qe3 Rad8 22.Nf3 Qe6 23.Rfc1 Rfe8 24.Nd2 Bd5 25.Ra4 Qe7 -0.05/14 ; Stockfish 1.7.1 JA: 18.f5 Qe5 19.Qf4 Qxf4 20.Nxf4 Nb7 21.Rc7+ Rf7 22.Nd5 Nc5 23.Rxf7+ Kxf7 24.Bc4 b5 25.Bxb5 gxf5 26.Bc4 Kg7 27.exf5 Rb8 28.g4 d3 29.h3 Rb2 30.Nf4 Rc2 31.Bxd3 Nxd3 32.Nxd3 Rxa2 33.Rf2 -0.32/19 ] 18...Qe5 19.Nf4 [FireBird 1.2 w32: 19.Rf3 g5 20.Bb1 Bd7 21.Qxd4 Qxd4+ 22.Nxd4 Rfc8 23.Rfc3 Rxc3 24.Rxc3 Rc8 25.Rxc8 Bxc8 26.Bd3 Bd7 27.Kf2 Nc6 28.Nxc6 Bxc6 29.Ke3 Kf7 30.Bc4+ Ke7 31.Kd4 Kd6 32.g3 h5 33.Bf1 g4 0.01/18 ; Rybka 3 32-bit: 19.Qf4 Qxf4 20.Nxf4 Nb7 21.fxg6 hxg6 22.Rc7+ Rf7 23.Rxf7+ Kxf7 24.e5 fxe5 25.Nxg6+ Ke6 26.Bc4+ Kd6 27.Rf6+ Kc5 28.Nxe5 Nd6 29.Bb3 Ba6 0.00/12 ; Stockfish 1.7.1 JA: 19.Qf4 g5 20.Rc7+ Rf7 21.Rxf7+ Kxf7 22.Qg4 Bb7 23.h4 Rg8 24.Qh5+ Kf8 25.Qh6+ Kf7 26.hxg5 Rxg5 27.Qxh7+ Rg7 28.Qh4 Rg5 29.Qf2 Nc6 30.Nf4 Nb4 31.Ng6 Qd6 0.12/19 ] 19...g5 20.Nh5+ [FireBird 1.2 w32: 20.Nh5+! Kg8 21.h4 h6 22.hxg5 hxg5 23.Bc4+ Nxc4 -0.11/21 ; Rybka 3 32-bit: 20.Nd5 Rf7 21.Qc2 Bd7 22.Qd1 Bc6 23.h4 Bxd5 24.exd5 Re8 25.hxg5 Qe3+ 26.Kh2 Qxg5 27.d6 Rd8 28.Rf3 Kh8 -0.16/13 ; Stockfish 1.7.1 JA: 20.Nd5 Rf7 21.Rfe1 Bb7 22.Qf2 Kh8 23.Be2 Rd8 24.Rcd1 Bxd5 25.Qxd4 Qxd4+ 26.Rxd4 Rfd7 27.exd5 Rxd5 28.Rxd5 Rxd5 29.Rc1 Re5 30.Bf3 Rc5 31.Rxc5 bxc5 32.Bd5 Kg7 33.Kf2 -0.60/18 ] 20...Kg8 21.h4 [FireBird 1.2 w32: 21.h4 h6 22.hxg5 hxg5 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.Ng3 Rc8 28.Rfd1 Rc3 29.R4d3 Rc2 30.R1d2 Rc7 31.Ne2 Bc6 32.Nc3 Kg7 33.Nd5 Bxd5 34.Rxd5 Re8 35.Rd7+ Re7 36.Rxc7 Rxc7 37.Kf2 b5 -0.11/20 ; Rybka 3 32-bit: 21.h4 h6 22.hxg5 hxg5 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.g4 Rc8 28.Kg2 Bxh5 29.gxh5 Rfe8 30.Kg3 Re7 31.Re1 Rc2 32.a4 Rec7 -0.05/15 ; Stockfish 1.7.1 JA: 21.h4 h6 22.hxg5 hxg5 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.g4 Rc8 28.Kg2 Bxh5 29.gxh5 Rfe8 30.Kg3 Rc6 31.Re1 Re7 32.e5 fxe5 33.Kg4 Kf7 34.Rd8 Kf6 35.Rf8+ Kg7 36.Rd8 Kh6 37.Rh8+ Kg7 38.Rd8 0.00/20 ] 21...h6 22.hxg5 [FireBird 1.2 w32: 22.hxg5 hxg5 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.Ng3 Rc8 28.e5 fxe5 29.Rg4 Bc6 30.Re1 Kf7 31.Rxe5 Rfe8 32.Rxe8 Bxe8 33.Rxg5 Rc1+ 34.Kh2 Ra1 35.Ne4 Rxa2 36.Rg6 Kf8 37.Rf6+ Kg7 38.Re6 Bf7 -0.11/20 ; Rybka 3 32-bit: 22.hxg5 hxg5 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.g4 Rc8 28.Rd6 Bxh5 29.gxh5 Rc2 30.Rf2 Rc3 31.Re2 Rf7 32.Kg2 Kh7 33.e5 -0.05/15 ; Stockfish 1.7.1 JA: 22.hxg5 hxg5 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Be8 26.g4 Qxd4+ 27.Rxd4 Bxh5 28.gxh5 Kg7 29.Rd7+ Kh6 30.Kf2 Rac8 31.Rxa7 Rc2+ 32.Kg3 Re8 33.Re1 Rc3+ 34.Kg4 Rc4 35.Kg3 Rcxe4 36.Rxe4 Rxe4 37.Rf7 Re3+ 38.Kg4 Re4+ 39.Kg3 0.00/22 ] 22...hxg5 23.Rf3 [FireBird 1.2 w32: 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.g4 Rc8 28.Rf2 Bxh5 29.gxh5 Rfd8 30.Rxd8+ Rxd8 31.Rc2 Rd4 32.Rc7 Ra4 33.Kg2 Rxa2+ 34.Kf3 b5 35.Rb7 Ra3+ 36.Kg4 Re3 -0.24/17 ; Rybka 3 32-bit: 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.g4 Rc8 28.Rd6 Bxh5 29.gxh5 Rc2 30.Rf2 Rc3 31.Rfd2 Kh7 32.Rd7+ Kh6 33.Rxa7 -0.01/12 ; Stockfish 1.7.1 JA: 23.Bc4+ Nxc4 24.Rxc4 Bd7 25.Qxd4 Qxd4+ 26.Rxd4 Be8 27.g4 Rc8 28.Kg2 Kf7 29.Rf2 Ke7 30.Rfd2 Rc7 31.Rd8 a5 32.R8d6 Rc6 33.R6d3 Rh8 34.Ng7 Rh4 35.Kg3 b5 36.Nxe8 Kxe8 -0.12/19 ] 23...Kf7 24.Nxf6 [FireBird 1.2 w32: 24.Nxf6 Qxf6 25.Rh3 Re8 26.Rh7+ Kg8 27.Rcc7 Bxf5 28.exf5 Rac8 29.Rxa7 Re3 30.Bf1 Rec3 31.Rhg7+ Qxg7 32.Rxg7+ Kxg7 33.Qxd4+ Kg8 34.Qd5+ Kg7 35.Qe5+ Kg8 36.Qe6+ Kf8 37.Qf6+ Kg8 38.Qxg5+ Kf8 39.Qf6+ Kg8 40.Qxb6 Nc6 41.f6 Rf8 42.Qb2 Rc5 43.Qb3+ Rf7 2.48/17 ; Rybka 3 32-bit: 24.Nxf6 Qxf6 2.20/14 ; Stockfish 1.7.1 JA: 24.Nxf6 Kxf6 25.Rh3 Qf4 26.e5+ Kxe5 27.Qe2+ Kd5 28.Rf1 Qe5 29.Qf3+ Kd6 30.Qxa8 Qg7 31.Qb8+ Kd5 32.Qg3 Qe5 33.Qxg5 Nb7 34.Qh6 Rf6 35.Qc1 Bxf5 36.Re1 Bxh3 37.Qc4+ Kd6 38.Rxe5 Kxe5 39.gxh3 4.00/19 ]

grts Bram