|Sally Simpson: This game may have historic significance.
Possibly the very first game way back in 1987 prepared using a database.
Gary explains his first reaction when he saw a chess database.
"When I saw what they had done, I could scarcely believe it. I threw myself back on the bed at the wonder of it. I stayed silent thinking about it for so long that they thought I'd fallen asleep. Then I started typing my games into the computer..."
Later in the same piece Gary explains how using a database saved days of work looking through books and helped him prepare v the Swiss team.
"I saw that one player had had a smashing victory, but when I replayed his game on the computer I saw a way in which his opponent could have stopped him. So I tempted him into similar moves. He couldn't believe his luck. I was leading him onto familiar ground where he had won his great victory. Then wham! I closed the trap on him."
The only game I have found where one of Gary's opponents reached a similar position prior to to the simul and won was:
Heinz Wirthensohn, - Andreas Huss, Basel 1986. (it not on this site.)
1. d4 e6 2. c4 Nf6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. Qc2 c6 7. O-O b6 8. Rd1 Ba6 9. Nbd2 Nbd7 10. b3 Rc8 11. e4 Qc7 12. Bb2 Rfd8 13. Rac1 Qb8 14. Re1 h6 15. Qb1 Bf8 16. e5 Ne8 17. Nf1 Nc7 18. Ne3 Bb7 19. cxd5 Nxd5 20. Nxd5 cxd5 21. Bf1 Rxc1 22. Rxc1 Rc8 23. g4 Be7 24. h4 Nf8 25. Bd3 Rxc1+ 26. Bxc1 Qc8 27. g5 Ba6 28. Bxa6 Qxa6 29. gxh6 Qe2 30. Kg2 Bxh4 31. Be3 gxh6 32. Qh1 Ng6 33. Qh3 Bxf2 34. Bxh6 Be3+ 0-1
Wirthensohn - Huss 2986 reach here in move 13
click for larger view
Kasparov - Huss reached here on move 13
click for larger view
The only difference is Gary moved his Rook from f1 to e1 and Heinz has played his Rook from Rf1-d1.
On the 14th move Heinz played 14.Rd1- e1 so Gary must have noticed this loss of tempo and agreed that the Rook should have gone to e1 right away.
As I said it is to date the only game I have found that matches the criteria, a similar set up (after 13 moves which give s a hint at home prep) , a previous win, an improvement and a loss after the improvement.
Hopefully somebody might find a more convincing example, if not then this may be it.