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Subject: Re: Great tactical postion, gives most engines a hard time

Author: Arturo Ochoa

Date: 07:25:52 11/03/04

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On November 02, 2004 at 19:27:03, robert flesher wrote:

>[D] 2r1bq1k/2r2p1P/1p2pPp1/p2pP1N1/3P4/nPP5/R2Q2K1/2RN4 w - - 0 42
>
>White to move and win with Rxa3

FEN: 2r1bq1k/2r2p1P/1p2pPp1/p2pP1N1/3P4/nPP5/R2Q2K1/2RN4 w - - 0 42

Pharaon 3.1 UCI:
illegal command
  6/25	00:00	      41.077	178.082	+1,17	42.Kf1 Nb5 43.Ke2 Na3 44.Ne3 Bb5+ 45.Kd1
  7/25	00:01	     127.158	193.249	+1,17	42.Kf1 Bb5+ 43.Ke1 Ba6 44.Qh2 Bd3 45.Rd2
Bb5
  8/25	00:02	     371.012	205.510	+0,91	42.Kf1 a4 43.Rca1 Nb5 44.Ra4: Nc3:
45.Nc3: Rc3: 46.Rc4 Rf3+
  9/25	00:06	   1.222.087	211.513	+0,79	42.Kf1 a4 43.Rb2 ab3: 44.Rb3: Bb5+
45.Ke1 Nc4 46.Qh2 Ba4 47.Rb4
  9/25+	00:06	   1.290.988	212.876	+0,79	42.Raa1
  9/25+	00:11	   2.385.006	217.957	+0,79	42.Kf2
  9/25	00:12	   2.574.724	218.524	+0,84	42.Kf2 a4 43.ba4: Ba4: 44.Ne3 Be8 45.Ke1
Bb5 46.Qb2 Qh6
 10/25	00:25	   5.440.553	219.833	+0,70	42.Kf2 b5 43.Rb2 b4 44.Ke1 Nb5 45.Rbc2
Bd7 46.c4 dc4: 47.bc4:
 10/25+	00:29	   6.327.986	221.156	+0,70	42.Qe1
 10/25	00:31	   6.894.659	221.906	+0,77	42.Qe1 b5 43.Qh4 b4 44.Rca1 Nb5 45.cb4:
ab4: 46.Rd2 Rc2 47.Rc2: Rc2:+ 48.Nf2
 11/25	01:09	  15.715.917	226.858	+0,47	42.Qe1 b5 43.Qe3 b4 44.Kf1
 11/25+	01:10	  15.960.332	227.555	+0,47	42.Kf2
 11/25+	01:18	  17.888.952	228.846	+0,47	42.Nf3
 11/25	01:25	  19.633.862	231.468	+0,70	42.Nf3 Bd7 43.Kf1 b5 44.Ng5 b4 45.Raa1
Be8 46.cb4: Bb5+ 47.Kf2 ab4: 48.Rc7: Rc7:
 11/25+	01:32	  21.286.556	231.470	+0,70	42.Raa1
 11/25	01:53	  26.242.649	232.905	+0,83	42.Raa1 Ra8 43.Nb2 a4 44.ba4: Ba4:
45.Na4: Ra4: 46.Qf4 Rac4 47.Qe3 Nb5
 12/25	03:11	  45.452.226	238.120	+0,70	42.Raa1 b5 43.Nf2 b4 44.Nd1 Bb5 45.Kg1
Ba6 46.cb4: ab4: 47.Rc7: Rc7: 48.Kf2 Bb5
 12/25+	03:18	  47.358.264	238.852	+0,70	42.Nf3
 12/25	04:09	  60.174.723	241.448	+1,05	42.Nf3 Nb5 43.Kf1 Na7 44.Ng5 Bb5+ 45.Ke1
Nc6 46.Nf2 Nd8 47.Kd1 Qh6 48.Rcc2 Qh5+ 49.Kc1
 13/25	04:50	  70.708.797	243.945	+1,01	42.Nf3 Nb5 43.Kf2 Na7 44.Ng5 Bb5 45.Nb2
Nc6 46.Raa1 Nd8 47.Nd3 Qh6 48.Rh1
 14/25	06:33	  96.680.469	246.053	+1,02	42.Nf3 Nb5 43.Kf2 Na7 44.Ng5 Bb5 45.Nb2
Ba6 46.Na4 Qe8 47.Nf3 Rc6 48.Qh6 Qf8
 14/25+	08:10	 121.430.642	247.882	+1,02	42.Ra3:
 14/25	09:57	 148.008.831	247.889	+2,74	42.Ra3: Qa3: 43.b4 Bb5 44.Nf3 Qc1:
45.Qc1: Kh7: 46.Ng5+ Kg8 47.Nf2 Kf8 48.Qh1 Ke8 49.Qh8+ Kd7 50.Qh7 Rc3: 51.Qf7:+
 15/25	12:58	 192.220.989	246.975	+3,96	42.Ra3: Qa3: 43.b4 Bb5 44.Nf3 Qc1:
45.Qc1: Kh7: 46.ba5: Rb7 47.Qf4 Rh8 48.ab6: Rb6: 49.Ng5+ Kg8 50.Kf2
 16/25	23:42	 346.770.378	243.799	+4,71	42.Ra3: Qa3: 43.b4 Bb5 44.Nf3 Qc1:
45.Qc1: Kh7: 46.Ng5+ Kg8 47.Qe3 Be2 48.Qe2: ab4: 49.Qb5 bc3: 50.Qb6:
 17/25	38:12	 567.983.288	247.739	+4,25	42.Ra3: Qa3: 43.b4 Bb5 44.Nf3 Qc1:
45.Qc1: Kh7: 46.ba5: Rc6 47.Ne3 Kg8 48.Qb2 Ba6 49.ab6: Rc3: 50.b7 Re3: 51.bc8Q:+
Bc8:
 18/25	1:04:03	 964.874.657	251.095	+4,59	42.Ra3: Qa3: 43.b4 Bb5 44.Nf3 Qc1:
45.Qc1: Kh7: 46.Ng5+ Kg8 47.Qe3 Be2 48.Qe2: ab4: 49.Qg4 bc3: 50.Ne6: c2 51.Nc7:
cd1Q: 52.Qd1: Rc7:





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