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Subject: Yace evaluation.

Author: Mogens Larsen

Date: 02:55:04 07/13/00

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On July 12, 2000 at 20:30:42, Dann Corbit wrote:

>The game:
>
>[Event "?"]
>[Site "New York USA-ch 4th match"]
>[Date "1857.??.??"]
>[Round "6"]
>[White "Paulsen, L"]
>[Black "Morphy, P"]
>[Result "0-1"]
>[ECO "C48"]
>[Opening "Four knights"]
>[Variation "Spanish, classical defence"]
>
>1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bc5 5.O-O O-O 6.Nxe5 Re8 7.Nxc6 dxc6 8.Bc4 b5
>9.Be2 Nxe4 10.Nxe4 Rxe4 11.Bf3 Re6 12.c3 Qd3 13.b4 Bb6 14.a4 bxa4 15.Qxa4 Bd7
>16.Ra2 Rae8 17.Qa6 Qxf3 18.gxf3 Rg6+ 19.Kh1 Bh3 20.Rd1 Bg2+ 21.Kg1 Bxf3+ 22.Kf1
>Bg2+ 23.Kg1 Bh3+ 24.Kh1 Bxf2 25.Qf1 Bxf1 26.Rxf1 Re2 27.Ra1 Rh6 28.d4 Be3 0-1
>
>The position before:
>
>[D] 4r1k1/p1pb1ppp/Qbp1r3/8/1P6/2Pq1B2/R2P1PPP/2B2RK1 b - - acd 10; acn 4632692;
>acs 31; ce 42; pv Qf5 d4 Rg6 Be2 Be6 Ra1 Bd5 f3 f6;

Yace 0.21 on a 800Mhz Athlon with 64Mb hash.

usetime = 359.00, mintime = 179.50 maxtime = 359.00 tl 359.00 ml 1
1 -15 0 4 t :Qd3xa6 Ra2xa6 (0)
1 -1 0 84 t :Re6d6 Qa6xd3 Rd6xd3 (0)
1 -1 0 112 . :Re6d6 Qa6xd3 Rd6xd3 (0)
2 -1 0 193 t :Re6d6 Qa6xd3 Rd6xd3H (0)
2 -1 0 1194 . :Re6d6 Qa6xd3 Rd6xd3 (0)
3 -1 0 1999 t :Re6d6 Qa6xd3 Rd6xd3 (0)
3 0 1 2659 t+:Qd3xa6 Bf3e4 null Ra2xa6 Re6xe4 Ra6xb6 (0)
3 8 1 2844 t :Qd3xa6 Ra2xa6 c6c5 Bf3d5 c5xb4 Bd5xe6 Re8xe6 (-70)
3 8 2 7669 . :Qd3xa6 Ra2xa6 c6c5 Bf3d5 c5xb4 Bd5xe6 Re8xe6 (-70)
4 8 2 8808 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6H (-70)
4 8 4 15697 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6 (-70)
5 8 5 18716 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6H (-70)
5 8 18 79139 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6 (-70)
6 8 22 93629 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6 (-70)
6 8 45 197968 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6 (-70)
7 40 54 230984 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 c3xb4 Re6d6 Bg4xd7 Rd6xd7 (0)
7 40 86 411049 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 c3xb4 Re6d6 Bg4xd7 Rd6xd7 (0)
8 30 120 542922 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 Bd7b5 Bg4xe6 Re8xe6 Ra6a1 Bb5xf1
Kg1xf1 c5xb4 c3xb4 (0)
8 30 318 1464046 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 Bd7b5 Bg4xe6 Re8xe6 Ra6a1 Bb5xf1
Kg1xf1 c5xb4 c3xb4 (0)
9 30 408 1763528 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 Bd7b5 Bg4xe6 Re8xe6 Ra6a1 Bb5xf1
Kg1xf1 c5xb4 c3xb4H (0)
9 30 1123 4968770 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 Bd7b5 Bg4xe6 Re8xe6 Ra6a1 Bb5xf1
Kg1xf1 c5xb4 c3xb4 (0)
10 30 1343 5774223 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 Bd7b5 Bg4xe6 Re8xe6 Ra6a1 Bb5xf1
Kg1xf1 c5xb4 c3xb4 (0)
10 30 2358 10554392 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 Bd7b5 Bg4xe6 Re8xe6 Ra6a1 Bb5xf1
Kg1xf1 c5xb4 c3xb4 (0)
11 40 3412 14273392 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6 Ra6a1 Bd7b5
Rf1d1 Bb5e2H Rd1e1H b4b3H (-70)
11 40 6233 28130477 . :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6 Ra6a1 Bd7b5
Rf1d1 Bb5e2 Rd1e1 b4b3 (-70)
12 38 8565 36593908 t :Qd3xa6 Ra2xa6 c6c5 Bf3g4 c5xb4 Bg4xe6 Re8xe6 Ra6a1 Bd7b5
Rf1d1 Re6e2 c3xb4 Bb6xf2+ Kg1h1 Bb5d3 (-70)
12 39 10745 46728900 t+:Qd3xf3 g2xf3 Re6g6+ Kg1h1 Bd7h3 Qa6d3 f7f5 Qd3c4+ Kg8f8
Qc4f4 Bb6xf2 Qf4xf5+ Bh3xf5 Ra2xa7 Re8e1 Ra7
12 60 12264 53988313 t :Qd3xf3 g2xf3 Re6g6+ Kg1h1 Bd7h3 Qa6d3 f7f5 Qd3c4+ Kg8f8
Qc4h4 Bh3xf1 h2h3 Rg6h6 Qh4f4 Rh6xh3+ Kh1g1
12 60 24340 110014215 . :Qd3xf3 g2xf3 Re6g6+ Kg1h1 Bd7h3 Qa6d3 f7f5 Qd3c4+ Kg8f8
Qc4h4 Bh3xf1 h2h3 Rg6h6 Qh4f4 Rh6xh3+ Kh1g1
12 60 24340 110014215 f.:Qd3xf3 g2xf3 Re6g6+ Kg1h1 Bd7h3 Qa6d3 f7f5 Qd3c4+ Kg8f8
Qc4h4 Bh3xf1 h2h3 Rg6h6 Qh4f4 Rh6xh3+ Kh1g1
 110014215 243.4     60 12f.: Qd3xf3 g2xf3 Re6g6+ Kg1h1 Bd7h3 Qa6d3 f7f5
                              Qd3c4+ Kg8f8 Qc4h4 Bh3xf1 h2h3 Rg6h6 Qh4f4
                              Rh6xh3+ Kh1g1 Bf1d3 (-70)
110014215 Nodes, 36.17% Leavenodes, 451973 Nodes/sec
58328147 eval, 27.85% score, 381675053 genmoves, 12.60% captures le 278/258
ext: pawn 18670, rcp 486693, chk 2908124, repchk 484246, null 27196, prune
7943209
htable: 65397802 store, 1316102 rejected, 85069730 probe, 24494766 found
entries 5333325 age 82 rate 666665 clock 62712 renew 0 rehash 2
egtb probes 0, found 0

Phalanx and LG2000 find the move within 2 minutes without problems. Zchess is
capable of finding the move within 30 seconds, but throws it away again.

Best wishes...
Mogens



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