Author: Uri Blass
Date: 21:50:03 11/30/04
Go up one level in this thread
On November 30, 2004 at 18:41:43, Peter Berger wrote:
>Nice to get the chance to try a new version of one of the most interesting
>amateur engines availlable.
>
>First game of a new engine or new version is always a thrill.
>
>Movei was just as sceptical as usual in its new incarnation and first game on my
>computers.
>
>a.) While watching the game it occured to me that eval is a bit similar to a
>bet. Junior put its money on the assessment that a pair of bishops is at least
>about a pawn better than a rook and two pawns in late middlegame or endgame -
>Movei disagreed. Even without the additional king safety issue in the game I
>think Junior is just right.
>
>Movei made Junior work hard for the game - one or two critical Junior moves were
>found very late, which is again typical, so
>
>b.) The top pros just use their time much better. It doesn't work always, but
>there is a strong tendency that they will spend much time when it matters, to an
>extent that in pro-amateur game they usually have about a 2-1 time advantage
>during the critical moves ( with the exception of Chess Tiger) . I think this
>advantage is maybe underestimated.
>
>c.) And yes, Junior is just a bitch anyway- what a mighty prog.
>
>Movei played on Athlon64 3200+(2.0GHz), 64MB Hash, Junior on a P233MMX, 16MB
>Hash - looking forward to the next games.
>
>A diagram maybe ?
>
>Junior 8.0.0.2 - movei00_8_295, Computer chess game 2004
>[D] r4r1k/p4ppp/2q1p3/2b1P1B1/2B1R1n1/P7/2Q2PPP/5RK1 b - - 0 1
>
>Here movei decided that Nxf2 was a good idea, and that it would be not much
>worse after it.
>
>Peter
>
>[Event "Computer chess game"]
>[Site "Athlon64 3200+(2.0GHz) - P233MMX"]
>[Date "2004.11.30"]
>[Round "1"]
>[White "Junior 8.0.0.2"]
>[Black "movei00_8_295"]
>[Result "1-0"]
>[TimeControl "7200+10"]
>
>1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8.
>Bd3 Bb7 9. O-O b4 10. Ne4 Be7 11. Nxf6+ Nxf6 12. a3 bxa3 13. bxa3 O-O 14.
>Rb1 Qc8 15. e4 c5 16. Bg5 cxd4 17. Qb3 Bc6 18. Nxd4 Bc5 19. Nxc6 Qxc6 20.
>Qc2 Ng4 21. e5 Qd5 22. Rbe1 Kh8 23. Bc4 Qc6 24. Re4 Nxf2 25. Rxf2 Bxf2+ 26.
>Kxf2 Qc5+ 27. Be3 Qxa3 28. Rh4 g6 29. Be2 Rfc8 30. Qe4 Qf8 31. Rh3 Kg8 32.
>Qh4 Qg7 33. Bg5 f5 34. exf6 Qf7 35. Qe4 Rab8 36. Re3 Re8 37. Qe5 a6 38.
>Bxa6 Rb6 39. Bc4 Qa7 40. Bf4 Kf7 41. Kg3 Qb7 42. h3 Qd7 43. Re4 Qc6 44. Be3
>Rb7 45. Bc5 Qc7 46. Bd6 Qd7 47. Qf4 g5 48. Qxg5 Qxd6+ 49. Kh4 Rg8 50. Rxe6
>Rxg5 51. Rxd6+ Kg6 52. f7+ Kg7 53. Kxg5 Rb8 54. Rd4 Rf8 55. Kf5
>{Movei->black resign} 1-0
Analyzing the game with yace I have problems to prove big advantage for white
after 24...Nxf2
Even after 31.Rh3 Qe7(Movei played 31...Kg8 that was probably bad) Yace gives
only a small advantage for white even after a long time on A1000.
Junior 8.0.0.2 - movei00_8_295, Blitz:120'+10"
r1r4k/p3qp1p/4p1p1/4P3/4Q3/4B2R/4BKPP/8 w - - 0 1
Analysis by Yace 0.99.87:
32.Qxa8 Rxa8
-+ (-4.52) Depth: 1 00:00:00
32.Bxa7 Rxa7
-+ (-2.61) Depth: 1 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 1 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 1 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 2 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 2 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 3 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 3 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 4 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 4 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 5 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 5 00:00:00
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 6/7 00:00:00 2kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 6/7 00:00:00 3kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 7/7 00:00:00 3kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 7/10 00:00:00 5kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 8/10 00:00:00 5kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 8/11 00:00:01 22kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 9/11 00:00:01 22kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 9/16 00:00:01 59kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 10/16 00:00:01 59kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 10/16 00:00:01 129kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 11/16 00:00:01 129kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8
² (0.60) Depth: 11/18 00:00:01 220kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8 38.Re3 f4
39.Re4
² (0.69) Depth: 12/41 00:03:05 73976kN
32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 Rb8 35.Qg5 Qxg5 36.Bxg5 Rbb2 37.Bf6+ Kg8 38.Re3 f4
39.Re4
² (0.69) Depth: 12/41 00:04:39 112200kN
32.Qf4 Rc2 33.Qh6 f5 34.exf6 Qxf6+ 35.Rf3 Qg7 36.Qh4 Rac8 37.Qf6 Qxf6 38.Rxf6
² (0.68) Depth: 13/45 00:09:28 230688kN
32.Qf4 Rc2 33.Qh6 f5 34.exf6 Qxf6+ 35.Rf3 Qg7 36.Qh4 Rac8 37.Qf6 Qxf6 38.Rxf6
² (0.68) Depth: 13/45 00:14:54 367796kN
(Blass, Tel-Aviv 01.12.2004)
It turns out that after 32.Qf4 Rc2 33.Qh6 f5 34.Qxg6 white has bigger advantage
but it is very hard even to prove advantage of more than +1.00 pawn with
backward analysis with yace.
31...Qe7 is not the only possible move for black and there are moves like
31...Qd8 when after 32.Qf4 Rc7 Yace see only 0.8/12
Uri
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