Author: Uri Blass
Date: 05:51:13 11/18/02
Go up one level in this thread
On November 18, 2002 at 08:11:04, Jim Monaghan wrote:
>Milan posted an interesting game in the WB forum.
>
>AMD XP 1600+
>Single 1700 MHz
>32 MB Hash
>ponder off
>Deep Fritz 7 GUI
>Time 60/60' + 20/20' + 10'
>Shredder6.ctg for all / read only.
>
>
>[Event "3"]
>[Site "s"]
>[Date "2002.11.15"]
>[Round "2"]
>[White "The King 3.23KURT"]
>[Black "Shredder 6.02"]
>[ECO "C44"]
>[Result "1-0"]
>
>1. e4 {0} e5 {0} 2. Nf3 {0} Nc6 {0} 3. c3 {0} Nf6 {0} 4. d4
>{0} d6 {0} 5. Bd3 {0} g6 {0} 6. O-O {0} Bg7 {0} 7. h3 {0}
>O-O { 0} 8. Nbd2 {0} Nh5 {0} 9. Nb3 {0} exd4 {0.45/13 103}
>10. cxd4 { 0.68/11 74} Re8 {(h6) 0.37/12 52} 11. Bg5 {(Re1)
>0.88/12 137} Bf6 { 0.29/12 36} 12. Be3 {(Qc1) 0.81/11 58}
>Nb4 {(a5) 0.40/12 63} 13. Bb1 { 0.85/12 96} Be6 {(Nc6)
>0.30/12 77} 14. a3 {(Re1) 0.85/11 80} Na6 { 0.21/12 48}
>15. Na5 {(Ba2) 0.91/11 82} Bc8 {(Bg7) 0.52/12 82} 16. e5 {
>0.98/11 87} c6 {(c5) 0.56/13 69} 17. Nc4 {(Nxc6) 0.97/11
>80} Be7 { 0.85/13 61} 18. exd6 {0.86/11 86} Bxd6 {0.58/11
>8} 19. Nxd6 {0.86/10 78} Qxd6 {0.69/12 9} 20. Ng5 {0.94/10
>57} Nc7 {0.47/13 102} 21. Ne4 { 0.78/11 76} Qf8 {0.51/12
>65} 22. Nc3 {(Qb3) 0.73/10 47} Be6 { (Ng3) 0.19/13 54}
>23. Re1 {0.61/11 95} Bd5 {(f5) 0.20/12 70} 24. Bd3 {
>0.71/11 73} Qd6 {0.35/12 72} 25. Rc1 {(Qg4) 0.79/10 69} Re7
>{ (Nf4) 0.18/12 138} 26. Qa4 {0.84/10 63} Nf4 {0.26/13 122}
>27. Bf1 { 0.69/11 72} Nfe6 {(Ree8) 0.20/12 101} 28. f3
>{(Qa5) 0.58/11 117} f5 {0.09/12 91} 29. Bf2 {0.50/11 122}
>Kh8 {(a5) 0.02/12 126} 30. Qc2 { (Re5) 0.66/10 59} Rae8
>{-0.16/13 72} 31. Re5 {(Bh4) 0.64/10 89} Bxf3 {(Rd8)
>-0.14/11 52} 32. gxf3 {0.77/11 55} Nxd4 {0.51/14 103}
>33. Rxe7 {0.70/12 39} Nxc2 {0.31/14 61} 34. Rxe8+ {0.71/12
>21} Nxe8 { 0.26/15 84} 35. Rxc2 {0.74/12 30} Qf4 {(b6)
>0.27/14 82} 36. Re2 { (Bg2) 0.93/12 58} Nd6 {0.13/13 25}
>37. Bg2 {(Re6) 0.83/12 64} b6 { 0.01/15 67} 38. Re6 {(Re3)
>0.80/11 42} Qd2 {(Kg8) 0.02/14 86} 39. f4 { 0.95/11 45} Kg7
>{(Kg8) -0.04/13 67} 40. Bxc6 {0.93/11 54} Qxf4 { 0.03/14
>70} 41. Bg2 {(Re7+) 0.91/11 60} Nc4 {(Kf8) -0.02/13 68}
>42. Ne2 { (Re7+) 0.92/11 38} Qg5 {(Qd2) 0.07/13 59} 43. Kh2
>{1.06/11 53} Qd8 {(Qd2) 0.04/12 70} 44. Bd4+ {(Nd4) 0.87/11
>77} Kg8 {0.03/13 44} 45. Bc3 { (Bc6) 1.05/11 52} Kf7
>{0.05/12 78} 46. Rf6+ {1.05/12 101} Ke8 { (Qxf6) 0.15/14
>93} 47. Rc6 {1.15/10 35} Na5 {(Qh4) 0.10/13 42} 48. Re6+ {
>1.32/12 34} Kd7 {0.04/13 49} 49. Bf6 {1.32/12 44} Qc7+
>{0.41/15 43} 50. Be5 {1.48/13 21} Qc2 {0.41/15 101}
>51. Rd6+ {(Nd4) 1.55/12 46} Ke8 {0.50/15 92} 52. Nf4
>{1.51/12 57} g5 {(Qf2) 0.50/14 100} 53. Nd5 { (Ne6) 1.90/12
>62} f4 {(Nc4) 1.68/14 143} 54. Re6+ {2.37/11 51} Kf7
>{1.95/14 99} 55. Re7+ {2.94/11 54} Kg6 {2.28/14 49} 56. Bc3
>{2.94/10 44} f3 {(Nb3) 2.23/11 42} 57. Rg7+ {4.18/13 51}
>Kh5 {2.85/15 23} 58. Nf6+ {4.19/13 52} Kh6 {3.47/15 32}
>59. Ng4+ {4.25/13 88} Kh5 { 3.47/7 0} 60. Rxh7+ {4.25/13
>51} Kg6 {(Qxh7) 3.63/14 19} 61. Rh6+ { 4.39/11 27} Kf7
>{3.71/14 39} 62. Ne5+ {(Rf6+) 4.46/11 59} Kg7 { (Ke8)
>0.75/16 225} 63. Rg6+ {4.95/13 40} Kh7 {(Qxg6) 6.00/16 105}
>64. Rxg5 {5.65/10 22} Qc1 {6.08/13 87} 65. Rh5+ {6.06/11
>73} Kg8 { 6.08/13 86} 66. Bxf3 {6.08/10 66} Kf8 {6.94/11
>156} 67. Rh8+ {6.24/9 40} Ke7 {6.14/10 12} 68. Rh7+ {6.25/9
>44} Kd8 {(Ke8) 6.59/12 78} 69. Rxa7 {6.87/10 68} Kc8
>{6.78/12 54} 70. Re7 {(Rf7) 7.43/11 64} Kd8 { 8.66/13 96}
>71. Bb4 {7.59/11 45} 1-0
>
>The following position shows an interesting evaluation error.
>
>[D] 4r2k/ppn1r2p/2pqn1p1/3bRp2/3P4/P1N2P1P/1PQ2BP1/2R2BK1 b - -
>
>
>The setting is a fairly complex, crowded middlegame with perhaps roughly level
>(that is not to say drawish) chances. The King has slightly the worse pawn
>structure being hampered somewhat by an isolated d-pawn. In compensation, he has
>the two bishops which if the position opens up could become very powerful.
>Black's pawn formation is more compact (only two pawn islands) yet his kingside
>is rather airy and he is somewhat weak on the dark squares. Most of his pawns
>have moved to light squares and he is lacking his KB. A factor which could
>become deadly should the position open up. I don't see an active plan for him.
>If he advances his king-side pawns to attack the White castled position, the
>resulting open lines and weak dark squares would probably rebound on him. In
>view of this, Black should simply hold pat and play a waiting game.
>
>Instead, Shredder uncorks 31... Bxf3?! This leads to an unbalanced material
>situation with blurred positional values. The move is a pretty idea with a
>forced variation that leads to this position:
>
>[D] 4n2k/pp5p/2pq2p1/5p2/8/P1N2P1P/1PR2B2/5BK1 b - -
>
>Black has a Q+N+6Ps vs R+2Bs+N+4Ps. The difference is Q+Ps vs R+2Bs, statically
>that's 13=13. But, White's two bishops acting in concert in an open position is
>certainly worth more than "6". Black's pawns are better. White's pawns are
>broken up on the king-side, but are they really weak? Black has hardly anything
>left to attack them with. I would think it's only a matter of time, before White
>unravels his temporarily awkwardly placed pieces and gets them co-ordinated to
>penetrate the Black position. This is exactly what happened in the game.
>
>At 14 ply and over 20 minutes later, Shredder still wants to go into the line.
>
> 7.01 0:01 +0.61 31...c5 32.Nxd5 Nxd5 33.Ree1 cxd4 34.Bb5 Rd8 35.Qd3 Qf4
>(279.488) 226.8
> 8.01 0:02 +0.36-- 31...c5 32.Nxd5 Nxd5 33.Bb5 Nxd4 34.Rxe7 Qxe7 35.Bxd4+
>cxd4 (544.711) 236.4
> 8.01 0:03 +0.29 31...c5 32.Nxd5 Nxd5 33.Bb5 Nxd4 34.Rxe7 Rxe7 35.Qxc5 Nxb5
>36.Bd4+ Kg8 37.Qxb5 (736.657) 241.1
> 9.01 0:06 +0.04-- 31...c5 32.Rxd5 Nxd5 33.dxc5 Qd8 34.Rd1 Kg8 35.Nxd5 Rc7
>36.Nxc7 Qxc7 (1.689.322) 252.5
> 9.01 0:07 -0.46-- 31...c5 32.Rxd5 Nxd5 33.dxc5 Qd8 34.Rd1 Kg8 35.Nxd5 Nc7
>36.Nxe7+ Kg7 37.Rxd8 (1.938.159) 256.3
> 9.01 0:09 -1.52 31...c5 32.Rxd5 Nxd5 33.dxc5 Qd8 34.Rd1 Rd7 35.Bb5 Nef4
>36.Bg3 Ree7 37.Qb3 Nh5 38.Nxd5 Nxg3 (2.521.639) 257.9
> 9.02 0:10 -1.51++ 31...Nf4 32.Qd2 Nxh3+ 33.gxh3 Bxf3 34.Rxe7 Qxe7 35.h4
>(2.688.863) 256.9
> 9.02 0:10 -1.16++ 31...Nf4 32.Qd2 Nxh3+ 33.gxh3 Bxf3 34.Rxe7 Rxe7 35.d5
>(2.745.905) 256.7
> 9.02 0:14 +0.01 31...Nf4 32.Qd2 Nh5 33.Nxd5 Nxd5 34.Rce1 Nhf4 35.Rxe7 Rxe7
>36.Bc4 Kg7 (3.712.586) 253.2
> 9.04 0:16 +0.02++ 31...h6 32.Qd2 Kh7 33.Rce1 a6 34.Nxd5 Nxd5 35.Kh1 Qd8
>(4.213.439) 249.9
> 9.04 0:19 +0.15 31...h6 32.Kh1 a6 33.Bd3 Nf4 34.Nxd5 Ncxd5 35.Rxe7 Rxe7
>36.Bh4 g5 (4.810.289) 248.6
> 10.01 0:32 +0.05 31...h6 32.Kh1 Kh7 33.Rce1 b6 34.Bh4 Rd7 35.Nxd5 Nxd5
>36.Qd2 (7.968.004) 244.9
> 11.01 0:59 -0.08 31...h6 32.Kh1 Kg8 33.Qa4 a6 34.Bh4 g5 35.Bf2 (14.366.223)
>241.9
> 11.09 1:41 -0.07++ 31...Bxf3 32.gxf3 Nxd4 33.Rxe7 Nxc2 34.Rxe8+ Nxe8 35.Rxc2
>a6 36.Ne4 Qf4 37.Bc4 Qxf3 (24.558.569) 242.3
> 11.09 1:47 +0.09 31...Bxf3 32.gxf3 Nxd4 33.Rxe7 Nxc2 34.Rxe8+ Nxe8 35.Rxc2
>b6 36.Kg2 g5 37.Be3 Qe7 38.Bd4+ (26.158.540) 243.2
> 12.01 2:22 -0.01 31...Bxf3 32.gxf3 Nxd4 33.Rxe7 Nxc2 34.Rxe8+ Nxe8 35.Rxc2
>a5 36.Re2 Nf6 37.Bg2 Kg7 (35.253.501) 247.0
> 13.01 5:21 -0.02 31...Bxf3 32.gxf3 Nxd4 33.Rxe7 Nxc2 34.Rxe8+ Nxe8 35.Rxc2
>b6 36.Kg2 Kg7 37.Bc4 Qxa3 (80.501.451) 250.3
> 14.01 10:47 -0.10 31...Bxf3 32.gxf3 Nxd4 33.Rxe7 Nxc2 34.Rxe8+ Nxe8 35.Rxc2
>b6 36.Kg2 Nf6 37.Bc4 Nh5 38.Ne2 c5 39.Be3 (167.491.119) 258.8
>best move: Bd5xf3 time: 21:24.978 min n/s: 252.647 CPU 98.8% nodes:
>324.643.725
>
>How do other engines fair?
>
>Cheers,
>Jim
Fortunately movei does not evaluate weak pawns so it has no problem to solve it
I guess that it is not going to solve it after I add it to it's evaluation.
Movei:
depth=10 -0.21 a7a6 c3d5 c7d5 f1c4 e6d4 e5d5 e7e1 f2e1 c6d5 c2a4 b7b5 e1b4 b5a4
b4d6 d5c4 c1c4
Nodes: 32263996 NPS: 141496
Time: 00:03:48.02
depth=10 -0.21 a7a6 c3d5 c7d5 f1c4 e6d4 e5d5 e7e1 f2e1 c6d5 c2a4 b7b5 e1b4 b5a4
b4d6 d5c4 c1c4
Nodes: 42424285 NPS: 142353
Time: 00:04:58.02
depth=11 -0.21 a7a6 c3d5 c7d5 f1c4 e6d4 e5d5 e7e1 c1e1 e8e1 f2e1 c6d5 c4d5 d6d5
e1c3
Nodes: 47064236 NPS: 140940
Time: 00:05:33.93
After Bxf3
depth=10 +0.53 g2f3 e6d4 e5e7 d4c2 e7e8 c7e8 c1c2 a7a6 b2b4 a6a5 b4a5 d6a3 f2d4
h8g8
Nodes: 1352340 NPS: 149760
Time: 00:00:09.03
depth=11 +0.42 g2f3 e6d4 e5e7 d4c2 e7e8 c7e8 c1c2 a7a6 c2c1 d6d2 c3e2 h8g8 f2d4
Nodes: 2858771 NPS: 152143
Time: 00:00:18.79
depth=12 +0.44 g2f3 e6d4 e5e7 d4c2 e7e8 c7e8 c1c2 a7a6 c2e2 e8f6 f1g2 h8g8 e2e1
c6c5
Nodes: 11290317 NPS: 156094
Time: 00:01:12.33
Uri
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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