Interesting 2700 Game to follow with program

[kgburcham]

I found the position after 8.cxb5 in only one game in the database I searched. In that game black played 8...Qc7. I only checked one database so I am sure someone will find other games. It seems blacks move of 8...cxb5 was the losing move in a 2700 vs 2700 game. I was amazed how early black lost this game. Of course everyone here knows how important the opening is.

[d] rn1qkb1r/4pppp/p1p2n2/1P1pN2b/8/1PN1P3/P1QP1PPP/R1B1KB1R b KQkq -


The next diagram shows a mate in 13 in 20 moves in this same 2700 game. I kinda thought this was not possible in todays Super GM games with opening knowledge, databases, and program assistance while learning.

[d] 3q1b1r/2N2ppp/4p1b1/3p1k2/8/1PQ1P3/P2P2PP/R3K2R w KQ -

10/37 0:00 +9.91 20.e4+ Kg4 21.Qf3+ Kh4 22.Qf4+ Kh5 23.h4 Bf5 24.exf5 exf5 25.Qxf5+ Kh6 26.Qf4+ g5 27.Qxf7 (1.239.013) 1617
11/41 0:03 +12.90 20.e4+ Kg4 21.Qf3+ Kh4 22.g3+ Kh3 23.Nxe6 fxe6 24.Qf1+ Kg4 25.h4 Qf6 26.Qh3+ Kf3 27.g4+ (5.269.642) 1686
11/41 0:03 +12.90 20.e4+ Kg4 21.Qf3+ Kh4 22.g3+ Kh3 23.Nxe6 fxe6 24.Qf1+ Kg4 25.h4 Qf6 26.Qh3+ Kf3 27.g4+ (6.085.644) 1723
12/43 0:05 +M15 20.e4+ Kg4 21.Qf3+ Kh4 22.g3+ Kh3 23.Nxe6 fxe6 24.Qf1+ Kg4 25.h4 Qf6 26.Qh3+ Kf3 27.g4+ Kf4 28.O-O+ Ke5 29.Qg3+ Qf4 30.Qxf4+ Kd4 31.Qf2+ Ke5 32.Qg3+ Kd4 33.Qc3+ (9.091.779) 1774
13/43 0:08 +M13 20.e4+ Kg4 21.Qf3+ Kh4 22.g3+ Kh3 23.Qf1+ Kg4 24.h4 Qf6 25.Qh3+ Kf3 26.g4+ Kf4 27.Rf1+ Ke5 28.Qg3+ Qf4 29.Qxf4+ Kd4 30.Qf2+ Ke5 31.Nb5 dxe4 32.Qd4+ (16.284.499) 1847
14/43 0:15 +M13 20.e4+ Kg4 21.Qf3+ Kh4 22.g3+ Kh3 23.Qf1+ Kg4 24.h4 Qf6 25.Qh3+ Kf3 26.g4+ Kf4 27.Rf1+ Ke5 28.Qg3+ Qf4 29.Qxf4+ Kd4 30.Qf2+ Ke5 31.Nb5 dxe4 32.Qd4+ (31.165.353) 1963


[Event "4th M-Tel Masters"]
[Site "Sofia BUL"]
[Date "2008.05.10"]
[Round "3"]
[White "Ivanchuk, V."]
[Black "Bu Xiangzhi"]
[WhiteElo "2740"]
[BlackElo "2708"]
[ECO "A11"]
[Result "1-0"]

1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. e3 a6 5. Qc2 b5 6. b3 Bg4
7. Ne5 Bh5 8. cxb5 cxb5 9. Bxb5+ axb5 10. Nxb5 e6 11. Nc7+
Ke7 12. Nxa8 Nfd7 13. Ba3+ Kf6 14. Bb2 Nxe5 15. f4 Nbd7
16. Nc7 Bg6 17. Bxe5+ Nxe5 18. fxe5+ Kxe5 19. Qc3+ Kf5
20. O-O+ Kg5 21. a4 Kh6 22. Rf3 Bf5 23. Raf1 Bd6 24. Nb5
Bb8 25. Nd4 Be4 26. Rh3+ Kg6 27. d3 Bf5 28. Rhf3 Be5
29. Qe1 Bxd4 30. Rg3+ Kh6 31. exd4 g6 32. Rgf3 1-0