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Subject: Re: game position: Cerbro vs Horizon

Author: John Merlino

Date: 12:08:09 07/14/02

Go up one level in this thread


On July 14, 2002 at 14:33:45, Ron Murawski wrote:

>>Chessmaster 9000 says Qxd5 is the winning move, although it DOES pick Nd2
>>between 9 and 18 seconds.
>>
>>Time	Depth	Score	Positions	Moves
>>0:00	1/3	-1.43	6303		38...Rb4 39.Qh5 Kxg7 40.Rg1+ Kf8
>>					41.Qh8+ Ke7
>>0:00	1/4	-1.43	9541		38...Rb4 39.Qh5 Kxg7 40.Rg1+ Kf8
>>					41.Qh8+ Ke7
>>0:00	1/5	-1.13	34963		38...Rb4 39.Qh5 Kxg7 40.Nd4 Qb6
>>					41.Rg1+ Kf8 42.Qh8+ Ke7
>>0:02	1/6	-1.41	123632		38...Rb4 39.Qh5 Kxg7 40.Nd4 Qc7
>>					41.Nc6 Nf2+ 42.Kg2
>>0:04	1/7	-0.95	298883		38...Rb4 39.Qh5 Kxg7 40.Nd4 Qb6
>>					41.Qe5+ Qf6 42.Qxe4 Qxd4 43.Qxd4+
>>					Rxd4 44.Rxb2 Rxd5
>>0:06	1/7	-1.27	459123		38...f6 39.Qf5 Rb4 40.Rg1 Nf2+
>>					41.Kg2 Ng4 42.Qe6+ Kxg7 43.Nc3
>>0:09	1/7	-1.78	670828		38...Nd2 39.Qh5 Rh4 40.Rxb2 Qxb2
>>					41.Qxh4 Qa1+ 42.Ng1 Qxg1+ 43.Kxg1
>>					Nf3+ 44.Kf2 Nxh4
>>0:13	1/8	-3.17	1017561		38...Nd2 39.Qh5 Rh4 40.Rxb2 Qxb2
>>					41.Qxh4 Qa1+ 42.Ng1 Qxg1+ 43.Kxg1
>>					Nf3+ 44.Kf2 Nxh4 45.d6 Kxg7 46.d7
>>0:18	1/8	-3.74	1383153		38...Qxd5 39.Rxb2 Ng3+ 40.Kg2 Nxe2
>>					41.Qxd5 Nf4+ 42.Kf3 Nxd5 43.Rg2
>>					Rf4+ 44.Ke2
>>0:24	1/9	-3.81	1876955		38...Qxd5 39.Rxb2 Ng3+ 40.Kg2 Nxe2
>>					41.Qxd5 Nf4+ 42.Kf3 Nxd5 43.Rg2
>>					Rf4+ 44.Ke2 a5
>>0:38	2/10	-3.70	3007760		38...Qxd5 39.Rxb2 Ng3+ 40.Kg2 Nxe2
>>					41.Qxd5 Nf4+ 42.Kf3 Nxd5 43.Rg2
>>					f5 44.Rg6 Ra3+ 45.Kf2
>>
>>Forcing Nd2 shows a draw score.
>>
>>jm
>
>When the new ChessMaster is released I will be buying it. I love the quick finds
>of great moves. Your analysis shows me that you are doing something right in
>ChessMaster (and that Uri is doing something right in Movei) that Horizon and
>Crafty are doing wrong. Maybe Gerd has a handle on this with his mention of
>disabling double null-move when king safety is involved.

Glad you like what you see. I forgot to mention that the above analysis was done
on a PIII-733, and that forcing Nd2 showed a draw score in two seconds:

Time	Depth	Score	Positions	Moves
----	----	----	----		----
0:00	1/3	0.31	1605		39.Qh5 Kxg7 40.Qg5+ Kh7 41.Qxd2 Ra1
0:00	1/4	0.19	11023		39.Qh5 Rh4 40.Rxb2 Qxb2 41.Qxh4
					Qa1+ 42.Ng1 Qxg7
0:00	1/5	-1.33	17448		39.Qh5 Rh4 40.Rxb2 Qxb2 41.Qxh4
					Qa1+ 42.Ng1 Qxg1+ 43.Kxg1 Nf3+
					44.Kf2 Nxh4
0:00	1/6	-1.33	54626		39.Qh5 Rh4 40.Rxb2 Qxb2 41.Qxh4
					Qa1+ 42.Ng1 Qxg1+ 43.Kxg1 Nf3+
					44.Kf2 Nxh4
0:00	1/7	-2.40	75081		39.Qh5 Rh4 40.Rxb2 Qxb2 41.Qxh4
					Qa1+ 42.Ng1 Qxg1+ 43.Kxg1 Nf3+
					44.Kf2 Nxh4 45.d6 Kxg7 46.d7
0:02	1/8	0.00	176947		39.Qh5 Rh4 40.Rxb2 Rxh5 41.Rxb7
					Rxd5 42.Nf4 Rf5 43.Nd3 Kxg7 44.Rxa7
0:04	1/9	0.00	372524		39.Qh5 Rh4 40.Rxb2 Rxh5 41.Rxb7
					Rxd5 42.Nf4 Rf5 43.Nd3 Kxg7 44.Rxa7
0:10	2/10	0.00	857573		39.Qh5 Rh4 40.Rxb2 Rxh5 41.Rxb7
					Rxd5 42.Rxa7 Kxg7 43.Kg2 Rf5 44.Nd4
					Rf6
0:28	3/11	0.01	2226512		39.Qh5 Rh4 40.Rxb2 Rxh5 41.Rxb7
					Rxd5 42.Rxa7 Kxg7 43.Kg2 Nc4 44.Kf3
					Rd2 45.Re7
1:03	4/12	-0.09	5261847		39.Qh5 Rh4 40.Rxb2 Rxh5 41.Rxb7
					Rxd5 42.Rxa7 Kxg7 43.Kg2 Nc4 44.Re7
					Rd2 45.Kg3 Nd6

jm



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