Author: Tim Foden
Date: 01:02:18 08/15/02
Go up one level in this thread
On August 14, 2002 at 07:23:46, Andrew Williams wrote:
>Yesterday PM and Sjeng played a game in which Sjeng found Nxc5! in this
>position:
>
>[D]5nk1/r1q1b2p/1Np1p1p1/p1Pp1p2/Q2Pn3/P3PN2/5PPP/1R2B1K1 b - - 0 26 bm Nxc5
Green Light Chess 2.18, 24MB Hash, AXP 1.46GHz:
>anal
Game stage: Middle game
Current eval: -0.444
Ply Time Score Nodes Principal Variation
4 0.02 -1.121 6469 e5 27. Nxe5 Bxc5 28. dxc5 Qxe5 29. Bxa5
4 0.04 -1.100 13824 g5 27. Rb2 g4 28. Ne5
4 0.05 -1.100 15553 g5 27. Rb2 g4 28. Ne5
5 0.05 -1.259 20909 g5 27. h3 g4 28. hxg4 fxg4 29. Ne5
5 0.06 -1.217 31195 Bd8 27. Rb3 Qf7 28. Bxa5 Bxb6 29. Rxb6
5 0.07 -1.196 39959 Bf6 27. Rb3 Nd7 28. Nxd7 Qxd7 29. Bxa5
5 0.09 -1.114 48758 Rb7 27. Bxa5 Nd7 28. Rb3 Nxb6 29. Bxb6
5 0.11 -1.114 53308 Rb7 27. Bxa5 Nd7 28. Rb3 Nxb6 29. Bxb6
6 0.13 -1.210 68747 Rb7 27. Bxa5 Nd7 28. Rb3 Ra7 29. Nxd7 Qxd7
6 0.20 -1.098 117716 Bd8 27. Rb3 Ra6 28. Rb2 Qf7 29. Bxa5 Bxb6 30. Rxb6
Rxb6 31. Bxb6
6 0.23 -0.836 154289 g5 27. Rc1 g4 28. Nd2 Nf6 29. Qc2
6 0.26 -0.836 161186 g5 27. Rc1 g4 28. Nd2 Nf6 29. Qc2
7 0.35 -1.030 220557 g5 27. Rc1 f4 28. Bxa5 fxe3 29. fxe3 Nd7 30. Ra1
7 0.62 -1.030 432092 g5 27. Rc1 f4 28. Bxa5 fxe3 29. fxe3 Nd7 30. Ra1
8 0.77 -1.032 542842 g5 27. Rc1 f4 28. Bxa5 fxe3 29. fxe3 g4 30. Ne1 Rb7
8 1.28 -1.010 925463 Bd8 27. Rb3 Ra6 28. Nd2 Qa7 29. Qxc6 a4 30. Nc8
Rxc6 31. Nxa7 axb3 32. Nxc6 Nxd2 33. Nxd8
8 1.53 -0.630 1163957 Nxc5 27. dxc5 Bxc5 28. Bxa5 Bxb6 29. Bxb6 Qxb6 30.
Rxb6 Rxa4 31. Rxc6 {++}
8 1.59 -0.281 1233219 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Bxc7 Rxb1+
8 1.61 -0.281 1249332 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Bxc7 Rxb1+
9 1.69 -0.281 1325451 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Bxc7 Rxb1+
9 2.02 -0.281 1609637 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Bxc7 Rxb1+
10 2.20 -0.429 1801173 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Nf6+ Kg7 32. Bxc7 Rxb1+
10 3.00 -0.429 2458266 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Nf6+ Kg7 32. Bxc7 Rxb1+
11 3.31 -0.429 2769082 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Nf6+ Kg7 32. Bxc7 Rxb1+
11 7.42 -0.429 6234530 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Nf6+ Kg7 32. Bxc7 Rxb1+
12 8.18 -0.029 7085513 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30.
Nxd7 Rxb3 31. Nf6+ Kf7 32. Bxc7 Rxb1+ 33. Ne1
{ht} {++}
12 8.91 -0.017 7944419 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qd6 32. Nd4
12 9.96 -0.017 8948820 Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qd6 32. Nd4
13 11.93 +0.062 11124k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Nd4 Nc5
13 13.28 +0.062 12293k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Nd4 Nc5
14 17.74 +0.161 16936k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Ng5 Nc5 33. Qc3
14 20.29 +0.161 19248k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Ng5 Nc5 33. Qc3
15 30.83 +0.147 30457k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qd6 32. Nf4 Rb8 33. Qc3 c5 34. Bxb6
Nxb6
15 36.34 +0.147 35444k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qd6 32. Nf4 Rb8 33. Qc3 c5 34. Bxb6
Nxb6
16 1:09 +0.168 67189k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Nf4 Nc5 33. Qc3 Qxc3 34.
Bxc3 Ne4
16 1:28 +0.168 82749k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Nf4 Nc5 33. Qc3 Qxc3 34.
Bxc3 Ne4
17 3:50 +0.132 213165k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Nd4 c5 33. Qc2 Qd6 34. Nb5
Qf8 35. Bxb6 Nxb6
17 4:25 +0.132 241702k Nxc5 27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4
Bxb6 31. Nxe6 Qe5 32. Nd4 c5 33. Qc2 Qd6 34. Nb5
Qf8 35. Bxb6 Nxb6
18 4:25 0/37 Nxc5 >exit
local: t=4:27 nps=911737.3 n=243738371 (19.6% / 80.4%) fh=87.4%
total: t=4:27 nps=911737.3 n=243738371 draws=98116
trans: probes=47778119 hits=4867313 (10.19%) draft=3508004 (7.34%)
tcuts: exact=2299 (0.00%) upper=1566810 (3.28%) lower=1506083 (3.15%)
tstor: exact=2739 (0.02%) upper=11721145 (65.59%) lower=6145375 (34.39%)
ext: check=6302187 recap=523268 ppush=29338 1rep=417286 thrt=0
q-moves: gen=209635641 tested=97331878 made/un=32971249 max-dep=17
max eval diff: part-1=3.308 part-2=2.598
>The game changed completely after 38..Nd6??, which loses to Be7. The full game
>follows:
[d]6k1/1n5p/2p3p1/3p2B1/5P2/q7/5PPP/4Q1K1 b - - 0 38
>anal
Game stage: Endgame
Current eval: 0.190
Ply Time Score Nodes Principal Variation
4 0.02 +0.107 6424 Kf7 39. Qd1 Nd6 40. Qd4
5 0.03 +0.301 11442 Kf7 39. g3 Na5 40. Qe3 Nb3
5 0.04 +0.301 15785 Kf7 39. g3 Na5 40. Qe3 Nb3
6 0.05 +0.302 26510 Kf7 39. g3 Na5 40. Qd1 Nb3 41. h4
6 0.06 +0.302 33779 Kf7 39. g3 Na5 40. Qd1 Nb3 41. h4
7 0.13 +0.080 93564 Kf7 39. g4 d4 40. Qe4 Qd6 41. Qe5 Qd7
7 0.18 +0.080 132862 Kf7 39. g4 d4 40. Qe4 Qd6 41. Qe5 Qd7
8 0.33 +0.000 285496 Kf7 39. g3 Na5 40. Qe5 Qc1+ 41. Kg2 Qd2 42. Qe7+
Kg8 43. Qe8+ Kg7 44. Qe5+ Kg8 45. Qe8+
8 0.63 +0.101 600522 Nd6 39. Be7 Kf7 40. g4 Qc5 41. f5 gxf5 42. gxf5 Kg8
8 0.68 +0.101 637565 Nd6 39. Be7 Kf7 40. g4 Qc5 41. f5 gxf5 42. gxf5 Kg8
9 0.88 +0.000 856152 Nd6 39. Be7 h6 40. Qe6+ Kh7 41. g4 Qc1+ 42. Kg2 Ne4
43. Qf7+ Kh8 44. Bf6+ Nxf6 45. Qxf6+ Kh7 46. Qf7+
Kh8 47. Qf6+
9 1.18 +0.000 1145535 Nd6 39. Be7 h6 40. Qe6+ Kh7 41. g4 Qc1+ 42. Kg2 Ne4
43. Qf7+ Kh8 44. Bf6+ Nxf6 45. Qxf6+ Kh7 46. Qf7+
Kh8 47. Qf6+
Generating internal KP-K end-game table...
Done (0.200 secs) Nd6 >
10 4.72 -0.003 4412880 Kf7 39. f5 Qd6 40. fxg6+ hxg6 41. Qe3 Nc5 42. Bf4
Qe7 43. Be5 Nb3 44. h3
10 7.20 -0.003 6713316 Kf7 39. f5 Qd6 40. fxg6+ hxg6 41. Qe3 Nc5 42. Bf4
Qe7 43. Be5 Nb3 44. h3
11 17.84 -0.403 16948k Kf7 39. g3 c5 40. Qe5 Nd6 {--}
11 20.88 -0.402 20354k Kf7 39. g3 Qd6 40. Qc3 Nc5 41. Bf6 {++}
11 21.17 -0.013 20625k Kf7 39. g3 Qd6 40. Qc3 Nc5 41. Qh8 h5 42. Qh7+ Kf8
43. f5 gxf5 44. Qh8+ Kf7 45. Qxh5+ {ht}
11 21.17 -0.013 20625k Kf7 39. g3 Qd6 40. Qc3 Nc5 41. Qh8 h5 42. Qh7+ Kf8
43. f5 gxf5 44. Qh8+ Kf7 45. Qxh5+ {ht}
12 32.20 -0.413 31267k Kf7 39. g3 Qd6 40. Qc3 Nc5 41. Qh8 h5 42. Qh7+ Kf8
43. Bh6+ Ke8 44. Qg8+ Kd7 45. Bf8 d4 46. Bxd6
{--}
12 37.52 -0.721 36344k Kf7 39. h3 Qd6 40. Qc3 c5 41. Qh8 Qf8 42. Qxh7+ Qg7
43. Qh6 Qxh6 44. Bxh6 c4 45. g3
12 54.63 -0.721 52630k Kf7 39. h3 Qd6 40. Qc3 c5 41. Qh8 Qf8 42. Qxh7+ Qg7
43. Qh6 Qxh6 44. Bxh6 c4 45. g3
13 1:00 -0.518 58363k Kf7 39. h3 Qd6 40. Qc3 c5 41. Qh8 Qf8 42. Qxh7+ Qg7
43. Qxg7+ Kxg7 44. g3 d4 45. Kg2 c4 46. h4
13 1:23 -0.518 79517k Kf7 39. h3 Qd6 40. Qc3 c5 41. Qh8 Qf8 42. Qxh7+ Qg7
43. Qxg7+ Kxg7 44. g3 d4 45. Kg2 c4 46. h4
14 2:08 -0.760 123737k Kf7 39. g3 Qd6 40. Qc3 Qe6 41. Qh8 Qe1+ 42. Kg2
Qe4+ 43. f3 Qe2+ 44. Kh3 Qe6+ 45. g4 Nd6 46.
Qxh7+ Ke8 47. Qh8+ Kf7 48. Qd4 Nc4
14 5:52 -0.760 338894k Kf7 39. g3 Qd6 40. Qc3 Qe6 41. Qh8 Qe1+ 42. Kg2
Qe4+ 43. f3 Qe2+ 44. Kh3 Qe6+ 45. g4 Nd6 46.
Qxh7+ Ke8 47. Qh8+ Kf7 48. Qd4 Nc4
15 5:52 0/33 Kf7 >exit
local: t=5:55 nps=961419.4 n=341468272 (28.0% / 72.0%) fh=85.0%
total: t=10:23 nps=940083.4 n=585206643 draws=416725
trans: probes=95176827 hits=19516378 (20.51%) draft=14096848 (14.81%)
tcuts: exact=3513 (0.00%) upper=9876448 (10.38%) lower=2290851 (2.41%)
tstor: exact=4718 (0.01%) upper=38040532 (70.82%) lower=15667605 (29.17%)
ext: check=33030032 recap=844654 ppush=336345 1rep=3092038 thrt=0
q-moves: gen=116132919 tested=75553314 made/un=28305388 max-dep=12
max eval diff: part-1=4.440 part-2=0.919
Cheers, Tim.
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