Author: Uri Blass
Date: 02:06:50 12/02/04
Go up one level in this thread
On December 02, 2004 at 04:41:58, Vasik Rajlich wrote:
>On December 01, 2004 at 16:27:20, Peter Berger wrote:
>
>>aka round 2 ;)
>>
>>The complicated and exciting Hertneck variation of the French Winawer is
>>certainly very tough to understand for the computers.
>>
>>Movei out of book at move 15 chose 15. O-O, which is extremely untopical. Only
>>15. h4 can be the correct and logical move here, but I guess very few programs
>>will choose this move without book.
>>
>>movei00_8_295 - Junior 8.0.0.2, Computer chess game 2004
>>[D]r1b1qrk1/pp4pp/2n1p1p1/3pP1N1/2pP2Q1/P1P1B3/2P2PPP/R3K2R w KQ - 0 1
>>
>>Junior maybe manouvred a bit carelessly in the opening, 20. ..Qf5 should be ?! .
>>
>>A nice move by movei was 22. g4:
>>
>>movei00_8_295 - Junior 8.0.0.2, Computer chess game 2004
>>[D]r3r1k1/p2bn1p1/1p2p1pp/3pPq2/2pP1P1Q/P1P1B3/1RPN2PP/5RK1 w - - 0 1
>>
>>I won't comment on the following manouvres, some of them a bit painful to watch,
>>but not decisive at all -let's move on to the critical point:
>>
>>movei00_8_295 - ba2axf, Computer chess game 2004
>>[D]2q2r2/p3nrpk/1p2p1pp/3pP3/b1pP1PPN/P1P1B3/1RP3QP/3R3K w - - 0 1
>>
>>37. g5 ? - ouch.
>>
>>The first exchange sac is very typical and probably easy for humans (and
>>computers?) 38. ..Rxf4
>>
>>[D]movei00_8_295 - Junior 8.0.0.2, Computer chess game 2004
>>2q2r2/p3nrpk/1p2p1p1/3pP1Pp/b1pP1P1N/P1P1B3/1RP3QP/1R5K b - - 0 1
>>
>>But the second one is just great! 41. ...Rxh4!
>>
>>movei00_8_295 - Junior 8.0.0.2, Computer chess game 2004
>>[D]5q2/p3n1pk/1p2p1p1/3pP1Pp/b1pP1r1N/P1P3QP/1RP5/1R5K b - - 0 1
>>
>>The position after black's 46th move - that's the dream of any black Caro-Kann
>>player with 3. ...g6 come true :
>>
>>movei00_8_295 - Junior 8.0.0.2, Computer chess game 2004
>>[D]8/p5pk/1p2p1p1/3pPn1p/b1pP1q2/P1P4P/1RP5/1R2Q2K w - - 0 1
>>
>>Junior took the lead by 2-0 in the match with this great game.
>>
>>Junior 8.0.0.2 , P223 MMX, 16 MB Hash, 3-4 men tablebases
>>Movei , Athlon 64 3200+(2.0GHz), 64 MB Hash
>>
>>Game in 2 hours, 10 seconds increment/move
>>
>>[Event "Computer chess game"]
>>[Site "XP3200"]
>>[Date "2004.12.01"]
>>[Round "2"]
>>[White "movei00_8_295"]
>>[Black "Junior 8.0.0.2"]
>>[Result "0-1"]
>>[TimeControl "7200+10"]
>>
>>1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 O-O 8.
>>Bd3 Nbc6 9. Qh5 Ng6 10. Nf3 Qc7 11. Be3 c4 12. Bxg6 fxg6 13. Qg4 Qf7 14.
>>Ng5 Qe8 15. O-O h6 16. Nf3 Qf7 17. Rab1 b6 18. Nd2 Bd7 19. f4 Ne7 20. Rb2
>>Qf5 21. Qh4 Rfe8 22. g4 Qf8 23. Ra1 Ba4 24. Kh1 Rad8 25. Qg3 Nc6 26. Nf3
>>Kh7 27. Qh3 Rd7 28. Nh4 Rf7 29. Rba2 Qe7 30. Rg1 Nd8 31. Bc1 Qd7 32. Qg2
>>Nc6 33. Be3 Ne7 34. Rb2 Rd8 35. Rgb1 Rdf8 36. Rd1 Qc8 37. g5 h5 38. Rdb1
>>Rxf4 39. Bxf4 Rxf4 40. Qg3 Qf8 41. h3 Rxh4 42. Qxh4 Qf3+ 43. Kh2 Nf5 44.
>>Qe1 Qf4+ 45. Kg1 Qxg5+ 46. Kh1 Qf4 47. Kg1 Qf3 48. Kh2 h4 49. Rc1 g5 50.
>>Rbb1 Ne3 51. Qd2 Qg3+ 52. Kh1 Qxh3+ 53. Kg1 Qg4+ 54. Kh2 Qg3+ 55. Kh1 h3
>>56. Re1 Qf3+ 57. Kg1 Ng4 58. Re2 Qg3+ 59. Kh1 Be8 60. Rf1 Bg6 61. Rf8 Be4+
>>62. Rxe4 dxe4 63. Qe2 g6
>>{Movei->white resign} 0-1
>
>Nice report.
>
>Also worth pointing out is white's strange use of rooks - doubled on the b-file,
>rather than somewhere on the f&g files. It's hard to get an engine to put its
>rooks on the right closed files.
>
>Vas
What is the definition of closed files?
By movei's definition closed files are files that are not open and
open files are files when there is no friendly pawn that prevent the rook to
go forward(there may be pieces or pawns of the opponent that prevent it to go
forward but if you remove all pieces except friendly pawns the rook can go to
the 8th rank).
By movei's definition the b file is an open file because there are no friendly
pawns in that file.
Movei has a bonus of 0.1 pawns for rook on open file and panelty of 0.1 for
closed file and I am not sure if that bonus and panelty is productive.
It was productive in the positions that I tested at the time that I implemented
it but I did not play enough games and it is possible that the positions were
misleading and in different positions I could get different results.
Uri
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