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Subject: Re: mate-in-31

Author: Vincent Lejeune

Date: 03:27:16 02/12/06

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Hiarcs 10 on an AMD 32 bits @ 2.1 Ghz find it a bit faster :

Analysis by Hiarcs 10:

1.Fa2 Re2 2.c4 Re3 3.Fb1 Re4 4.Rb3+ Rd4 5.Ff5 a2 6.Rxa2 Rxc4
  =  (0.16)   Profondeur: 12/18   00:00:03
1.Fa2
  ²  (0.41)   Profondeur: 12/18   00:00:03  97kN, tb=875
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2
  ²  (0.41)   Profondeur: 12/19   00:00:03  109kN, tb=951
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fa2 b1D 8.Fxb1
  =  (0.17)   Profondeur: 13/21   00:00:04  168kN, tb=1217
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Ff5 Rxc4 8.Rxb2
  =  (0.16)   Profondeur: 14/22   00:00:04  350kN, tb=1650
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fe4 b1D 8.Fxb1
Rxc4 9.Fe4
  =  (0.14)   Profondeur: 15/22   00:00:06  876kN, tb=2110
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fa2 b1D 8.Fxb1
Rxc4 9.Fe4
  =  (0.03)   Profondeur: 16/23   00:00:09  2144kN, tb=2687
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fa2 b1D 8.Fxb1
Rxc4 9.Fe4
  =  (0.03)   Profondeur: 17/25   00:00:10  2614kN, tb=3201
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fa2 b1D 8.Fxb1
Rxc4 9.Fe4
  =  (0.03)   Profondeur: 18/27   00:00:11  2769kN, tb=3964
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fa2 b1D 8.Fxb1
Rxc4 9.Fe4
  =  (0.03)   Profondeur: 19/27   00:00:13  2979kN, tb=4839
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fa2 b1D 8.Fxb1
Rxc4 9.Fe4
  =  (0.03)   Profondeur: 20/29   00:00:15  3285kN, tb=6030
1.Fa2 Re4 2.Rb3 Rd3 3.Fb1+ Rd2 4.c4 Rc1 5.Ra2 Rd2 6.Rxa3 Rc3 7.Fa2 b1D 8.Fxb1
Rxc4 9.Fe4
  =  (0.03)   Profondeur: 21/33   00:00:17  3749kN, tb=8790
1.Fa2
  ²  (0.28)   Profondeur: 22/35   00:00:24  6616kN, tb=12945
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Re3 Rd5 6.Rf4 Rd6 7.Re4 Rc6 8.Rd4 Rb5
9.Rd5 Ra5 10.Rxc4 Ra4 11.Fc2+
  ²  (0.61)   Profondeur: 22/35   00:00:27  8249kN, tb=13403
1.Fa2
  ±  (0.86)   Profondeur: 23/37   00:00:33  10442kN, tb=15911
1.Fa2
  +-  (61.45)   Profondeur: 23/37   00:00:40  14626kN, tb=18340
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4
  +-  (#33)   Profondeur: 23/37   00:00:48  19840kN, tb=21826
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rc6 7.Re4
  +-  (#33)   Profondeur: 24/37   00:00:49  20202kN, tb=22751
1.Fa2 Re4 2.Rd2 c4 3.Re2 Re5 4.Re3
  +-  (#32)   Profondeur: 25/37   00:00:52  22185kN, tb=24960
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1
  +-  (#31)   Profondeur: 26/37   00:00:58  24087kN, tb=29722
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4
  +-  (#31)   Profondeur: 27/37   00:00:59  24378kN, tb=30536
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4
  +-  (#31)   Profondeur: 28/37   00:01:01  24598kN, tb=31298
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4
  +-  (#31)   Profondeur: 29/37   00:01:03  24913kN, tb=32242
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4
  +-  (#31)   Profondeur: 30/39   00:01:05  25408kN, tb=33731
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5
  +-  (#31)   Profondeur: 31/43   00:01:09  26200kN, tb=36032
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5
  +-  (#31)   Profondeur: 32/43   00:01:14  26930kN, tb=39900
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4
  +-  (#31)   Profondeur: 33/47   00:01:22  27913kN, tb=45680
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5
  +-  (#31)   Profondeur: 34/51   00:01:29  29127kN, tb=53018
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 35/53   00:01:41  31381kN, tb=68384
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 36/53   00:01:49  33162kN, tb=75622
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 37/53   00:01:53  33529kN, tb=76521
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 38/53   00:01:59  34123kN, tb=78937
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 39/53   00:02:05  34887kN, tb=82200
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 40/53   00:02:06  35192kN, tb=83444
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 41/53   00:02:10  35598kN, tb=85189
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 42/53   00:02:13  35832kN, tb=86624
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 43/53   00:02:15  36115kN, tb=88184
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 44/53   00:02:18  36421kN, tb=90118
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 45/53   00:02:22  36870kN, tb=93220
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 46/55   00:02:28  37413kN, tb=96427
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 47/55   00:02:32  38083kN, tb=100781
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 48/59   00:02:37  39012kN, tb=106056
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 49/59   00:02:58  40181kN, tb=112425
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 50/59   00:03:07  41795kN, tb=120592
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 51/59   00:03:11  42614kN, tb=123379
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 52/59   00:03:17  44789kN, tb=127358
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 53/59   00:03:24  48447kN, tb=133375
1.Fa2 Re4 2.Rd2 c4 3.Re2 Rf4 4.Fb1 Re5 5.Rf3 Rd5 6.Rf4 Rd6 7.Re4 Rc5 8.Fa2 Rc6
9.Rd4 Rb5 10.Fb1 Ra5 11.Rxc4 Ra4 12.Fc2+ Ra5 13.Rb3 Rb5 14.Rxa3
  +-  (#31)   Profondeur: 54/59   00:03:39  55059kN, tb=141999


On February 11, 2006 at 20:56:48, Mike Byrne wrote:

>FEN: 8/5B2/8/2p5/8/p1P2k2/1pK5/8 w - - 0 1
>
>Rybka 1.01 Beta 13d:
>   3	00:00	         608	622.592	+0.03	1.Ba2
>   4	00:00	       1.448	1.482.752	+0.03	1.Ba2
>   4	00:00	       2.608	2.670.592	+0.15	1.Bg6
>   5	00:00	       3.240	195.162	+0.15	1.Bg6 Ke3
>   6	00:00	       5.576	178.432	+0.37	1.Bg6 Ke3 2.Kb3
>   7	00:00	      10.200	94.952	+0.03	1.Bg6 c4 2.Bf7 Ke3
>   8	00:01	      21.984	55.311	+0.03	1.Bg6 c4 2.Bf7 Ke3 3.Be8 b1Q+
>   8	00:01	      25.640	47.911	+0.36	1.Ba2 Ke4 2.Kb3 Kd3 3.c4
>   9	00:01	      32.928	37.800	+0.03	1.Ba2 Ke2 2.Kb3 Kd2 3.c4 Kd3
>  10	00:02	      48.592	36.586	+0.12	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>  11	00:02	      66.752	35.843	+0.03	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2
>  12	00:03	      89.808	34.010	+0.03	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2
>  13	00:04	     108.216	32.823	+0.03	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3
>  14	00:04	     129.232	32.943	+0.03	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2
>  15	00:06	     156.920	30.877	+0.03	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2 Kc2
>  16	00:07	     304.952	47.349	 0.00	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2 b1Q
>  17	00:08	     506.224	64.290	 0.00	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2 b1Q
>  18	00:10	     554.296	60.946	 0.00	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2 b1Q
>  19	00:11	     614.752	58.640	 0.00	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2 b1Q
>  20	00:13	     687.272	55.532	 0.00	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2 b1Q
>  21	00:15	     773.784	54.879	 0.00	1.Ba2 Ke4 2.Kb3 Kd3 3.Bb1+ Kd2 4.c4 Kc1
>5.Ka2 Kd2 6.Kxa3 Kc3 7.Ba2 b1Q
>  22	00:25	     972.752	40.995	+3.07	1.Ba2 Ke4 2.Kd2 c4 3.Ke2 Kf4 4.Bb1 Ke5
>5.Ke3 Kd5 6.Kf4 Kd6 7.Ke4 Kc5
>  23	00:28	   1.430.360	52.749	+2.29	1.Ba2 Ke4 2.Kd2 c4 3.Ke2 Kf4 4.Bb1 Ke5
>5.Ke3 Kd5 6.Kf4 Kd6 7.Ke4 Kc5
>  24	00:33	   2.021.048	62.770	+4.03	1.Ba2 Ke4 2.Kd2 c4 3.Ke2 Kf4 4.Bb1 Ke5
>5.Ke3 Kd5 6.Kf4 Kd6 7.Ke4 Kc5
>  25	00:39	   2.227.896	58.848	+4.09	1.Ba2 Ke4 2.Kd2 c4 3.Ke2 Kf4 4.Bb1 Ke5
>5.Ke3 Kd5 6.Kf4 Kd6 7.Ke4 Kc5
>  26	00:44	   2.461.888	57.518	+4.09	1.Ba2 Ke4 2.Kd2 c4 3.Ke2 Kf4 4.Bb1 Ke5
>5.Ke3 Kd5 6.Kf4 Kd6 7.Ke4 Kc5
>  27	01:03	   2.827.008	46.456	+M31	1.Ba2 Ke4 2.Kd2 c4 3.Ke2 Kf4 4.Bb1 Ke5 5.Ke3
>Kd5 6.Kf4 Kd6 7.Ke4 Kc5
>
>a few years , this problem fell under teh category " can you show me a winning
>score"
>
>http://chessprogramming.org/cccsearch/ccc.php?art_id=320311



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