Crazy exchange sacrifices

[michiguel]

In the case of your succesful story I think that every strong program is going to sacrifice.

Another evidence that the sacrifice was worth it.

Miguel

checked rybka toga and stockfish and all of them play e5 with evaluation of clear advantage for white

Gaviota - Tinker, ICS rated blitz match 2009
r4rk1/pb1p1ppp/4pn2/2p5/2P1PP2/P1NBB1nP/1P4P1/R4RK1 w - - 0 1

Analysis by Stockfish 1.4 JA:

19.Be3xc5 Ng3xf1 20.Bc5xf8 Ra8xf8 21.Ra1xf1
+- (1.67) Depth: 2 00:00:00
19.Be3xc5 Ng3xf1 20.Bc5xf8 Ra8xf8 21.Ra1xf1
+- (1.67) Depth: 3 00:00:00
19.Be3xc5 Rf8-c8 20.Rf1-f3 Nf6xe4
² (0.50) Depth: 4 00:00:00
19.e4-e5 Bb7-e4 20.Nc3xe4 Nf6xe4 21.Rf1-d1
² (0.64) Depth: 4 00:00:00
19.e4-e5 Bb7-e4 20.Nc3xe4 Nf6xe4 21.Rf1-d1 Ra8-b8
² (0.44) Depth: 5 00:00:00
19.Rf1-d1 Ng3xe4 20.Bd3xe4 Nf6xe4 21.Rd1xd7
² (0.66) Depth: 5 00:00:00
19.Rf1-d1 Rf8-b8 20.e4-e5 Nf6-e4 21.Ra1-c1 Bb7-c6
² (0.56) Depth: 6 00:00:00 11kN
19.Rf1-d1 Rf8-b8 20.e4-e5 Nf6-e4 21.Ra1-c1 Bb7-c6 22.Nc3-b5
² (0.54) Depth: 7 00:00:00 17kN
19.e4-e5 Ng3xf1 20.Ra1xf1 Nf6-h5 21.Be3xc5 Rf8-c8 22.b2-b4 Nh5-g3
² (0.66) Depth: 7 00:00:00 24kN
19.e4-e5 Ng3xf1 20.Ra1xf1 Nf6-h5 21.Be3xc5 Rf8-c8 22.b2-b4 Nh5-g3 23.Rf1-e1
² (0.64) Depth: 8 00:00:00 33kN
19.e4-e5
± (0.84) Depth: 9 00:00:01 54kN
19.e4-e5 Ng3xf1 20.Ra1xf1 Nf6-h5 21.Kg1-h2 f7-f6 22.g2-g4 Nh5xf4 23.Be3xf4 f6xe5 24.Bf4xe5 Rf8xf1 25.Bd3xf1
± (1.11) Depth: 10 00:00:01 95kN
19.e4-e5 Ng3xf1 20.Ra1xf1 Nf6-h5 21.Kg1-h2 g7-g6 22.g2-g4 Nh5-g7 23.Be3xc5 Rf8-c8 24.b2-b4 a7-a5
± (1.09) Depth: 11 00:00:01 183kN
19.e4-e5 Ng3xf1 20.Ra1xf1 Nf6-h5 21.Kg1-h2 g7-g6 22.g2-g4 Nh5-g7 23.Be3xc5 Rf8-c8 24.b2-b4 a7-a5 25.Kh2-g3 a5xb4 26.a3xb4
± (1.15) Depth: 12 00:00:01 350kN
19.e4-e5 Ng3xf1
± (0.94) Depth: 13 00:00:01 547kN
19.e4-e5 Ng3xf1 20.Ra1xf1 Nf6-h5 21.Kg1-h2 g7-g6 22.g2-g4 Nh5-g7 23.Be3xc5 Rf8-c8 24.b2-b4 a7-a5 25.Kh2-g3 a5xb4 26.a3xb4
± (1.15) Depth: 14 00:00:02 1527kN
19.e4-e5 Ng3xf1 20.Ra1xf1 d7-d5 21.e5xd6 Ra8-c8 22.b2-b4 c5xb4 23.a3xb4 Rf8-d8 24.c4-c5 Rd8xd6 25.c5xd6 Rc8xc3 26.Rf1-d1 Rc3-b3 27.Be3xa7 Rb3xb4 28.Ba7-e3
± (1.21) Depth: 15 00:00:06 3998kN
19.e4-e5 Ng3xf1 20.Ra1xf1 d7-d5 21.e5xd6 Ra8-c8 22.b2-b4 c5xb4 23.a3xb4 Rf8-d8 24.c4-c5 Rd8xd6 25.c5xd6 Rc8xc3 26.Rf1-d1 Rc3-b3 27.Be3xa7 Rb3xb4 28.Rd1-b1 Rb4xb1+ 29.Bd3xb1
± (1.13) Depth: 16 00:00:10 6812kN
19.e4-e5 Ng3xf1 20.Ra1xf1 Nf6-h5 21.Kg1-h2 g7-g6 22.g2-g4 Nh5-g7 23.Be3xc5 Rf8-c8 24.b2-b4 a7-a5 25.Nc3-e4 Bb7xe4 26.Bd3xe4 a5xb4 27.a3xb4 Ra8-a3 28.Kh2-g2
± (1.31) Depth: 17 00:00:21 14401kN

(so k, 05.09.2009)