Author: Dieter Buerssner
Date: 11:32:38 11/29/02
Go up one level in this thread
On November 29, 2002 at 12:53:05, John Merlino wrote:
>8/2q1p1k1/3pP1p1/2pPNpNp/2P2B2/1p1B2K1/1P1R4/r7 w - - 0 42
>
>CM9000, on a humble P3-733, finds 42.Nxg6! in 21 seconds. How do other engines
>fare?
>
>Time Depth Score Positions Moves
>0:13 2/10 1.56 1265670 5.Nc6 Rg1+ 6.Kh2 Ra1 7.Nh3 Ra8
> 8.Bg5 Re8 9.Rg2 Kh7 10.Bh4
>0:21 2/10 2.60 2017137 5.Nxg6 Rg1+ 6.Kh2 Rg4 7.Bxf5 Rxf4
> 8.Nxf4 Kf6 9.Rg2 Kxf5 10.Nxh5 Kg6
> 11.Nf4+ Kf5
>0:36 3/11 2.64 3474651 5.Nxg6 Rg1+ 6.Kh2 Rg4 7.Bxf5 Rxf4
> 8.Nxf4 Kf6 9.Rg2 Kxf5 10.Nxh5 Kg6
> 11.Nf4+ Kf5 12.Ne2
>1:16 4/12 2.64 6861024 5.Nxg6 Rg1+ 6.Kh2 Rg4 7.Bxf5 Rxf4
> 8.Nxf4 Kf6 9.Rg2 Kxf5 10.Nxh5 Kg6
> 11.Nf4+ Kf5 12.Ne2
>4:40 5/13 2.73 26598305 5.Nxg6 Rg1+ 6.Kh2 Rg4 7.Rf2 Kxg6
> 8.Bxf5+ Kg7 9.Bxg4 hxg4 10.Rg2
> Qa5 11.Rxg4 Qa1 12.Ne4+ Kh7 13.Rh4+
> Kg8
In the other positions in this thread, Yace results are comparable with results
posted from other engines. Here Yace likes Nxg6 for a little while, and then
switches to Ngf3 with rather good looking score (P4, 2.53 GHz):
20713957 33.376 2.23 11. 42.Ngf7 Kh7 43.Nxg6 Rg1+ 44.Kh2 Rxg6 45.Bxf5
Kg7 46.Bxg6 Kxg6 47.Rf2 Kg7 48.Rf3 Qb7 {109}
61827839 1:44.1 2.43 12t 42.Ngf7 Qa5 43.Bh6+ Kh7 44.Nxg6 Rg1+ 45.Kh2 Qa1
46.Nf4 Rh1+ 47.Kg3 Qe1+ 48.Rf2 Qe3+ 49.Kg2 Rh2+
50.Kxh2 Qxf2+ 51.Kh1 Qf3+ 52.Kg1 Qg3+ 53.Kf1H
{219}
72035942 2:00.6 2.44 12t+ 42.Nxg6 Kxg6 43.Kh2 Rc1 44.Rg2 Rc2 45.Bxc2 Kf6
73949513 2:03.9 2.63 12++ 42.Nxg6 Kxg6 43.Kh2 Rc1 44.Rg2 Rc2 45.Bxc2 Kf6
81876357 2:16.9 2.94 12t 42.Nxg6 Rg1+ 43.Kh2 Rg4 44.Rf2 Kxg6 45.Bxf5+
Kg7 46.Bxg4 hxg4 47.Rg2 Kf8 48.Kg3 Ke8 49.Kxg4
{189}
91609833 2:33.2 2.94 12. 42.Nxg6 Rg1+ 43.Kh2 Rg4 44.Rf2 Kxg6 45.Bxf5+
Kg7 46.Bxg4 hxg4 47.Rg2 Kf8 48.Kg3 Ke8 49.Kxg4
{189}
102387080 2:50.4 2.90 13t 42.Nxg6 Rg1+ 43.Kh2 Rg4 44.Rf2 Kxg6 45.Bxf5+
Kg7 46.Bxg4 hxg4 47.Rg2 Kf8 48.Kg3 Ke8 49.Kxg4
Kd8 {189}
124082285 3:25.1 2.90 13. 42.Nxg6 Rg1+ 43.Kh2 Rg4 44.Rf2 Kxg6 45.Bxf5+
Kg7 46.Bxg4 hxg4 47.Rg2 Kf8 48.Kg3 Ke8 49.Kxg4
Kd8 {189}
163363411 4:30.8 3.24 14t 42.Nxg6 Rg1+ 43.Kh2 Rg4 44.Rf2 Kxg6 45.Bxf5+
Kg7 46.Bxg4 hxg4 47.Kg3 Qc8 48.Bd2 Qa6 49.Rf4
Qa2 50.Bc3+ Kh6 {HT} {109}
276872014 7:35.4 3.25 14t+ 42.Ngf3 h4+ 43.Kh2 h3 44.Nxg6 Kxg6 45.Nh4+ Kg7
46.Nxf5+ Kg8 47.Bg5 Qa5 48.Nxe7+ Kg7 49.Nf5+
Kg8 50.e7 Re1 51.Be2 Kh7 52.e8=Q Qc7 {960}
310652420 8:32.4 3.30 14++ 42.Ngf3 h4+ 43.Kh2 h3 44.Nxg6 Kxg6 45.Nh4+ Kg7
46.Nxf5+ Kg8 47.Bg5 Qa5 48.Nxe7+ Kg7 49.Rf2
Rh1+ 50.Kxh1 Qe1+ 51.Rf1 Qg3 52.Bf6+ Kh6 {539}
379304537 10:29.0 3.48 14t 42.Ngf3 Rg1+ 43.Kh2 Rg4 44.Nxg4 hxg4 45.Nh4 Kf6
46.Rf2 Kg7 47.Bd2 Kh7 48.Kg3 Qb7 49.Bg5 Kg7
{HT} {299}
383321451 10:35.9 3.48 14. 42.Ngf3 Rg1+ 43.Kh2 Rg4 44.Nxg4 hxg4 45.Nh4 Kf6
46.Rf2 Kg7 47.Bd2 Kh7 48.Kg3 Qb7 49.Bg5 Kg7
{HT} {299}
Regards,
Dieter
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