Author: Uri Blass
Date: 19:45:55 01/12/01
I used Gandalf4.32g to analyze the last moves of game 6(looking for tactical
errors of Deeper blue)
Gandalf could not find tactical errors of Deeper blue in the last 4 moves.
Gandalf had the following scores on pII450:
16. Qd3 {0.60/13 18007)
17. Bf5 {1.63/14 24506)
18. Rxe7 {2.03/14 18086}
19. c4 {2.44/15 11451)
I did not give Gandalf enough time to get a score at depth 14(15,15,16)
I gave Gandalf less time to analyze move 19 but I guess that Gandalf could not
get a score at depth 16 in 5 hours(I assume that the branching is bigger than 2)
Chessbase's interface that publishes the depthes in the pgn gives the last
iteration that gandalf started and not the last iteration that gandalf got a
score so the numbers are bigger.
Here is the game with some analysis of gandalf as saved by chessbase
hiarcs7.32's interface.
The pgn includes also part of the main line of Gandalf when Gandalf did not
expect kasparov's move and the main line of Gandalf when kasparov resigned.
19.Qc3 was never in the main line of gandalf when it analyzed moves 17 and 18
but it was in the main line of Deeper blue and some other top programs liked it
so I analyzed also this move with Gandalf4.32g.
[Event "game 6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "deeper blue"]
[Black "kasparov"]
[Result "1-0"]
[ECO "B17"]
[Annotator "Blass,U"]
[PlyCount "46"]
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 h6 8.
Nxe6 Qe7 9. O-O fxe6 10. Bg6+ Kd8 11. Bf4 b5 12. a4 Bb7 13. Re1 Nd5 14. Bg3 Kc8
15. axb5 cxb5 16. Qd3 (16. Qd3 {0.60/14 18007} 16... Nc7 17. Bxc7 Kxc7 18. Be4
a6) 16... Bc6 17. Bf5 (17. Bf5 {1.63/15 24506}) 17... exf5 18. Rxe7 (18. Rxe7 {
2.03/15 18086} 18... Nxe7 19. Nh4 (19. Qc3 Kd8 {1.45/12 1085} 20. Bd6 {
1.76/12 1539} 20... Be4 21. Qa5+ Ke8 22. Qxb5 a6 23. Rxa6 Rxa6 24. Qxa6) 19...
Nb6 20. Nxf5 {1.93/12 1378}) 18... Bxe7 19. c4 {2.44/16 11451 1:0} 19... bxc4
20. Qxc4 Nb4 21. Re1 Re8 22. Nh4 Nb6 23. Qf7 f4 1-0
Uri
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