Author: Uri Blass
Date: 04:02:06 07/17/02
Go up one level in this thread
On July 16, 2002 at 19:04:00, Gerd Isenberg wrote:
>Sometimes the trap don't works:
>
>[Event "21st Dutch CC"]
>[Site "Leiden NED"]
>[Date "2001.11.03"]
>[Round "08"]
>[White "IsiChess X"]
>[Black "The King"]
>[Result "1-0"]
>
>1. e4 e5 2. Nf3 f5 3. exf5 e4 4. Ne5 Nf6 5. Be2 {last book move}
>d5 6. Bh5+ Ke7 7. Nf7 Qe8 8. Nxh8 Qxh5 9. Qxh5 Nxh5 10. g4
>Nf6 11. Nc3 Nxg4 12. Nxd5+ Kd6 13. c4 Ne5 14. d4 Nxc4
>15. Nf4 Nc6 16. b3 Nxd4 17. bxc4 Nc2+ 18. Ke2 Nxa1 19. Ba3+
>Ke5 20. Bxf8 Bxf5 21. Bxg7+ Kxf4 22. Rxa1 Bg4+ 23. Kd2 Rd8+
>24. Kc3 Rd3+ 25. Kb4 Bd7 26. Bc3 c5 27. Kb3 Be6 28. a4 Rd6
>29. Rg1 Rb6+ 30. Kc2 Bxc4 31. a5 Rb5 32. Rg3 b6
>33. Bd2+ Ke5 34. axb6 axb6 35. Rg7 Bd3+ 36. Kc3 Rb1 37. Be3
>c4 38. Re7+ Kd5 39. Rd7+ Ke5 40. Nf7+ Ke6 41. Rb7 Rb3+ 1-0
If you start the game with bad opening line the trap does not work.
I think that in the case of this game Isichess could also get the advantage by
other moves like d3 or Nc3 and not only immediate Nxh8.
I do not understand the choice of the book of the king.
I think that it could be better if the king did not use a book.
Here is analysis of movei
[D]rnb1qb1r/ppp1kNpp/5n2/3p1P1B/4p3/8/PPPP1PPP/RNBQK2R w KQ - 0 8
11 125 36620 45646128 d2d3 f6h5 f7h8 e4d3 e1g1 e7d8 c1g5 h5f6 d1d3 f8d6 d3d5
e8h8 b1c3
11 125 38845 48458177 d2d3 f6h5 f7h8 e4d3 e1g1 e7d8 c1g5 h5f6 d1d3 f8d6 d3d5
e8h8 b1c3
12 107 63120 78158682 d2d3 f6h5 f7h8 e7d8 d3e4 h5f6 b1c3 f8d6 c1g5 d5e4 d1d5
e8h8 c3e4
12 108 69417 86138060 b1c3
12 113 95807 119448359 b1c3 g7g6 f5g6 h7g6 f7h8 g6h5 d2d3 c8g4 d1d2 f8g7 d3e4
d5e4
Note that after trade of queens white still has mateial advantage of rook and
pawn for bishop so even knight at the corner is not enough to contradict white's
advantage.
This example is clearly a bad example to convince me to change my evaluation.
I expected to see something that movei evaluaes as bad for white and even movei
with it's big panelty for knight at the corner wants to capture the rook in it's
main line.
I continue to get scores of about +1 for white later in the game.
Uri
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