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Subject: Re: Fruit finds mate in 45 Movei find it faster

Author: Uri Blass

Date: 04:56:32 11/03/05

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On November 03, 2005 at 07:53:15, Uri Blass wrote:

>On November 03, 2005 at 07:18:15, Ignacio Santos Crespo wrote:
>
>>[D]b2b3R/1np2pp1/2N5/n1PK4/pP3P2/N1k2p2/Rpp3p1/r1B2rq1 w - - 0 1
>>
>>On my AMD64 3200+ with 512 MB for hash Fruit 2.2.1 finds mate in 45:
>>
>>FEN: b2b3R/1np2pp1/2N5/n1PK4/pP3P2/N1k2p2/Rpp3p1/r1B2rq1 w - - 0 1
>>
>>Fruit 2.2.1:
>>  1/17	00:01	       3.305	0	-19,29	Ac1xb2+ Rc3b3
>>  2/18	00:01	      18.416	0	-19,74	Ac1xb2+ Rc3b3 Ta2xa1 Tf1xa1
>>  2/23	00:01	      19.098	0	-19,39	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2 Ta2xb2
>>Tf1xc1 b4xa5 Cb7xa5+ Rd5d4
>>  3/26	00:01	      21.782	0	-19,81	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2 Cc3e4+
>>Rf2e1 Ta2xb2 Ta1xc1 b4xa5 Cb7xa5+ c5c6
>>  4/42	00:01	      36.814	0	-19,81	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2 Cc3e4+
>>Rf2e1 Ta2xb2 Ta1xc1 b4xa5 Cb7xa5+ c5c6
>>  5/48	00:01	      80.382	0	-19,87	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2 Ce5d3+
>>Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+
>>Rd7c8 Cf5e7+ Rc8b8 Ce5c6+ Ca5xc6 Ce7xc6+ Rb8c8 Cc6a7+ Rc8d7 c5c6+ Rd7e7 Ca7c8+
>>Re7f6 Ac1xb2+ Rf6g6
>>  6/51	00:01	     189.641	0	-20,41	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2 Ce5d3+
>>Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+
>>Rd7c8 Cf5e7+ Rc8b8 Ce5c6+ Ca5xc6 Ce7xc6+ Rb8c8 Cc6a7+ Rc8d7 c5c6+ Rd7e7 Ca7c8+
>>Re7f6 Ac1xb2+ Rf6g6 Ta2xa1 Tf1xa1
>>  7/55	00:01	     495.621	0	-20,11	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2 Ce5d3+
>>Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+
>>Rd7c8 Cf5e7+ Rc8b8 Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5xb4 Cb8a6+
>>Rb4c3 Ca7b5+ Rc3d3 Ca6b4+ Rd3e2 Cb5c3+ Re2f2 Cc3e4+ Rf2e1 Cb4xc2+ Re1d1
>>  8/71	00:02	     670.029	620.000	 0,00	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2
>>Ce5d3+ Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7
>>Cg4e5+ Rd7c8 Cf5e7+ Rc8b8 Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5xb4
>>Cb8a6+ Rb4c3 Ca7b5+ Rc3d3 Ca6b4+ Rd3e2 Cb5c3+ Re2f2 Cb4d3+ Rf2g3 Cc3e4+ Rg3g4
>>Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+ Rd7c8 Cf5e7+ Rc8b8
>>Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5b4
>>  9/71	00:02	   1.021.707	615.955	 0,00	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2
>>Ce5d3+ Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7
>>Cg4e5+ Rd7c8 Cf5e7+ Rc8b8 Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5xb4
>>Cb8a6+ Rb4c3 Ca7b5+ Rc3d3 Ca6b4+ Rd3e2 Cb5c3+ Re2f2 Cb4d3+ Rf2g3 Cc3e4+ Rg3g4
>>Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+ Rd7c8 Cf5e7+ Rc8b8
>>Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5b4
>> 10/77	00:03	   1.770.410	625.000	 0,00	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2
>>Ce5d3+ Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7
>>Cg4e5+ Rd7c8 Cf5e7+ Rc8b8 Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5xb4
>>Cb8a6+ Rb4c3 Ca7b5+ Rc3d3 Ca6b4+ Rd3e2 Cb5c3+ Re2f2 Cb4d3+ Rf2g3 Cc3e4+ Rg3g4
>>Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+ Rd7c8 Cf5e7+ Rc8b8
>>Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5b4
>> 11/85	00:06	   3.569.132	648.000	 0,00	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2
>>Ce5d3+ Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7
>>Cg4e5+ Rd7c8 Cf5e7+ Rc8b8 Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5xb4
>>Cb8a6+ Rb4c3 Ca7b5+ Rc3d3 Ca6b4+ Rd3e2 Cb5c3+ Re2f2 Cb4d3+ Rf2g3 Cc3e4+ Rg3g4
>>Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+ Rd7c8 Cf5e7+ Rc8b8
>>Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5b4
>> 12/95	02:06	  81.017.675	644.000	+M45	Ca3b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2
>>Ce5d3+ Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7
>>Cg4e5+ Rd7c8 Cf5e7+ Rc8b8 Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Cc8a7+ Rb5xb4
>>Cb8a6+ Rb4c3 Ca7b5+ Rc3d3 Ca6b4+ Rd3e2 Cb5c3+ Re2f2 Cb4d3+ Rf2g3 Cc3e4+ Rg3g4
>>Cd3e5+ Rg4f5 Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+ Rd7c8 Cf5e7+ Rc8b8
>>Ce5d7+ Rb8a7 Ce7c8+ Ra7a6 Cd7b8+ Ra6b5 Ta2xb2+ Ca5b3 Cc8a7+ Rb5b4 Cb8c6+ Rb4c3
>>Ca7b5+ Rc3d3 Cc6e5+ Rd3e2 Cb5c3+ Re2f2 Ce5d3+ Rf2g3 Cc3e4+ Rg3g4 Cd3e5+ Rg4f5
>>Ce4g3+ Rf5f6 Ce5g4+ Rf6e7 Cg3f5+ Re7d7 Cg4e5+ Rd7c8 Cf5e7+ Rc8b8 Ce5c6+
>>
>>Best,
>>Ignacio.
>
>movei on a slower hardware need less time to find the same thing
>Fruit does too many extensions so movei can get depth 14 in less time relative
>to the time that fruit get depth 12 here.
>
>Here is analysis both by latest movei and by movei00_8_295 that is faster here
>Note that the public version is simply faster in nodes per second and it is the
>main reason for the difference.
>
>You should try movei when you see some interesting long mate because it has good
>chance to find it faster than other programs.
>
>There are mates that it cannot find but if the right conditions happen it can
>beat fruit and many playing programs(I do not dare to claim that movei is the
>fastest because I did not try all programs but in some mates like this one it is
>one of the fastest programs).

I forgot to mention my hardware so I used A1000 with 64 mbytes hash

Uri



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