Author: Gerd Isenberg
Date: 04:26:58 07/17/02
Go up one level in this thread
On July 17, 2002 at 07:02:06, Uri Blass wrote:
>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.
The line was probably from Cock de Gorter with the idea to catch the trapped
knight (I am not quite sure, i believe The King was stil in book until 9...
Nxh5, but not expecting 10.g4 ). May be in older days this line was successfull
againts a lot of opponents.
>
>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 agree.
>
>I continue to get scores of about +1 for white later in the game.
>
>Uri
Gerd
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