Author: James Robertson
Date: 08:04:56 07/16/99
Go up one level in this thread
On July 15, 1999 at 23:16:07, Pete R. wrote:
When we work through the game forwards, we have to work through the analysis
backwards. :)
James
>Here is a more detailed PGN file. Not too readable as a human, but fine with a
>good interface.
>
>[Event "?"]
>[Site "?"]
>[Date "????.??.??"]
>[Round "?"]
>[White "?"]
>[Black "?"]
>[Result "*"]
>[ECO "B97"]
>[Annotator ""]
>[PlyCount "95"]
>
>1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2
>Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. fxe6 fxe6 12. Nxc6 bxc6 13. e5 dxe5 14. Bxf6
>gxf6 15. Ne4 Be7 16. Be2 h5 17. Rb3 Qa4 18. Nxf6+ Bxf6 19. c4 Bh4+ 20. g3 Be7
>21. O-O h4 22. Bd3 Rg8 23. Qf2 23... Rg7 {based on analysis below, black has
>nothing after this move. See if alternatives are any better.} (23... Rg4 24.
>Bg6+ 24... Rxg6 {transposes to line played in game.} (24... Kd8 25. Rd1+ {
>+1.94 @ 12/34} 25... Rd4)) (23... Kd7 24. Rd1 Qa5 (24... Rxg3+ {is inferior}
>25. hxg3 25... Qa5 {+0.13 @ 11/35}) (24... Ke8 25. Rf1 Rg4 (25... Rg5 26. Qf7+
>26... Kd8 {*} 27. Rd1 27... Bd7 {-0.09 @ 13/13}) 26. Bg6+ Kd7 (26... Rxg6 {
>transposes to move 24 of actual game}) 27. Rd1+ 27... Rd4 {*} 28. Rxd4+ 28...
>exd4 {* +0.03 @ 13/13}) 25. Bh7+ 25... Kc7 {looks most promising for black} (
>25... Ke8 {weak} 26. Bxg8 Bc5 27. Re3 Ra7 28. Kh1 Bxe3 29. Qxe3 {+0.25 @ 11/36}
>) 26. Bxg8 Bc5 27. Re3 {*} 27... Bd7 28. Bh7 (28. Kg2 28... Rf8 {-1.78 @ 12/12}
>) (28. Kh1 28... Rf8 {-2.06 @ 12/12}) 28... Rf8 {-2.37 @12/32}) 24. Bg6+ 24...
>Rxg6 {*} (24... Kd7 $2 25. Rd1+ 25... Bd6 {*} 26. Qc5 {+8.59 @ 11/11} 26... Kd8
>27. Qxd6+) 25. Qf7+ 25... Kd8 {*} 26. Rd1+ 26... Bd7 {*} 27. Rxd7+ 27... Kxd7 {
>*} 28. Rd3+ Kc7 (28... Kc8 {only other legal move} 29. Qe8+ Kb7 (29... Kc7 {
>second of the only two feasible moves} 30. Qxe7+ 30... Kb6 {*} 31. Rb3+ 31...
>Qxb3 {*} 32. axb3 {transposes to move 31. of actual game, see analysis below -
>this line offers black nothing} 32... Rh8) 30. Qxe7+ {same as 29...Kc7 line.
>Now we have to back up further to find anything for black.}) 29. Qxe7+ 29...
>Kb6 {*} 30. Rb3+ 30... Qxb3 {*} 31. axb3 hxg3 (31... Rh8 32. c5+ 32... Kb5 {*}
>33. Qc7 33... Kb4 {*} 34. Qxc6 Rhg8 (34... Rgg8 35. Qb6+ 35... Kc3 {
>+0.91 @ 12/12} 36. Kg2) 35. Qa4+ Kxc5 (35... Kc3 36. Qxh4 {+1.44 @ 14/14} 36...
>Kxb3) 36. Qxh4 {+0.78 @ 13/35} 36... Rg4) (31... Rag8 32. Qxh4 {+0.87 @ 13/34}
>32... Rg5 33. Qh6 Kc5 (33... R8g6 34. Qf8 Rf5 (34... e4 35. b4 Kc7 36. Qe7+ Kc8
>37. Kf2 Rg4 38. Ke3 e5 39. Qa7 Kd8 40. Qxa6 Ke7 41. Qb7+ Kd8 42. c5 Rg7 43.
>Qxc6 {+5.19 @ 13/13}) 35. Qb4+ Kc7 36. Qe7+ Kb6 37. c5+ 37... Kb5 {*} 38. Qa7
>38... Kb4 {*} 39. Qb6+ Kc3 40. Qxc6 a5 41. Qa4 {+3.34 @ 11/33}) 34. Qxe6 R8g6 (
>34... Kb4 35. Qxc6 Kxb3 36. Qxa6 {+1.87 @ 11/11}) 35. Qf7 Kb4 36. Qb7+ {
>+0.91 @ 12/12 needs more analysis. Rooks have more scope in this line, but
>queen is probably still too powerful.}) (31... Rgg8 32. Qxh4 {+0.75 @ 13/13}
>32... Rad8) (31... c5 32. Qxh4 {+1.19 @ 14/32} 32... Rag8) 32. c5+ {*} 32...
>Kb5 {*} 33. Qb7+ {*} 33... Kxc5 {*} 34. Qxa8 gxh2+ 35. Kxh2 Rg4 36. Qxa6 Rb4
>37. Qa5+ Rb5 38. b4+ Kc4 39. Qc7 c5 40. bxc5 Rxc5 41. Qd6 e4 42. Qxe6+ Kd4 43.
>Qf6+ Kd5 44. Kg3 Rc2 45. Qd8+ Ke5 46. Qh8+ Kd5 47. Qh5+ Kc4 48. Kf4 {
>Black resigns} *
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