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Subject: Rebel 10.5 - Rohde 0-1: analysis of 26. Bg2.

Author: Dave Gomboc

Date: 16:16:42 05/23/99

Go up one level in this thread


On May 22, 1999 at 14:03:54, Dave Gomboc wrote:

>[Event "ICS Rated standard match"]
>[Site "chessclub.com"]
>[Date "1999.05.22"]
>[Round "-"]
>[White "Rebel10-5"]
>[Black "rohde"]
>[Result "0-1"]
>[WhiteElo "2200"]
>[BlackElo "2298"]
>[TimeControl "7200+5"]
>
>1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. Bg2 O-O 7. Nf3 d6
>8. O-O a5 9. a3 Na6 10. Nbd2 Re8 11. Ne1 e5 12. Nc2 bxa3 13. Rxa3 Rb8 14.
>Ne4 Nxe4 15. Bxe4 Bh3 16. Re1 Qb6 17. e3 f5 18. Bd5+ Kh8 19. Qa1 Nb4 20.
>Nxb4 axb4 21. Ra5 exd4 22. Rb5 Qd8 23. exd4 Ra8 24. Rxe8+ Qxe8 25. Qc1 Qe2
>26. f4 Qd3 27. Rxb7 Re8 28. Kh1 Qc2 29. Qe3 Qb1+ 30. Qg1 Qxb2 31. Rb6 h6
>32. Ra6 Qc2 33. c5 dxc5 34. dxc5 Qc3 35. Ra1 b3 36. Rc1 Qd3 37. Rd1 Qe2 38.
>Rb1 b2 39. Qd1 Qxd1+ 40. Rxd1 Rd8
>{Rebel10-5 resigns} 0-1
>
>Dave

Okay, there have been some questions about whether Rebel could have survived
after 26.Bg2.  So after 26.Bg2, let's play Qc2.  Now White can't take the queen,
so there is 27. Qe1 and 27. Qf1.

Let's go with Qf1 first.  Now 27...Qxb2 28. Bxh3 Ra1 29. Rxb7 Rxf1+ 30.Bxf1 h6
31. c5 dc 32.dc Qc3 33.c6 Qxc6 34. Rxb4 and a winning plan for Black is not that
clear to me.  The black king and queen can't simultaneously attack h2, and f2
can be defended by the rook, so where is the win?  27...Bxg2 28. Kxg2 Qxb2
doesn't appear to lead to anything conclusive for Black.

The situation with Qe1 is different: here, 27...Qxb2 is not possible because of
Ra5!, so let's try 27...Qxc4 28. Bf1 Bxf1 29. Rxb4 Qd5 30. Qxf1 Kg8 and his
position is nothing to write home about as long as White does not carelessly
play 31. Qc4??

I get the feeling that Black would have much better chances if he wasn't getting
back-ranked in so many of the subvariations, but seeing how this isn't the case,
Black's advantage does not appear to be as big as I thought it was.

26...Qd2 might be better than 26...Qc2, but I don't see a trememdous difference.

Dave



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