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Subject: Re: Test position and a pawn structure evaluation question

Author: Mike Byrne

Date: 09:08:13 02/05/06

Go up one level in this thread


nice position -- I think the position may be hard since there appears to be
other moves that almost as good, -- so depending on the eval function it may be
seen quickly or not so quickly - but after a deep enough search -- Rb3 may be
most direct , but c3 and others could transpose

FEN: [d]6k1/2p2rp1/1q2p1p1/1r1b2B1/p1pP1PPP/P7/1P1RRQ2/6K1 b - - 0 33

Rybka 1.01 Beta 13b:
   3	00:00	       3.184	0	+0.10	33. ... Rd7
   3	00:00	       1.096	0	+0.17	33. ... Rb3
   3	00:00	       2.512	0	+0.18	33. ... Qa6
   3	00:00	       1.032	0	+0.18	33. ... Qc6
   3	00:00	       2.456	0	+0.20	33. ... Rf8
   3	00:00	         848	0	+0.20	33. ... Qd6
---------------------------------------------------------------------------
   4	00:00	       5.152	0	+0.15	33. ... Qc6
   4	00:00	       5.448	0	+0.17	33. ... Qa6
   4	00:00	       4.928	0	+0.17	33. ... Rf8
   4	00:00	       3.488	0	+0.17	33. ... Qd6
   4	00:00	       6.447	104.789	+0.20	33. ... Bb7
   4	00:00	       5.160	110.080	+0.22	33. ... Qb7
---------------------------------------------------------------------------
   5	00:00	       8.735	113.223	+0.11	33. ... Qb7 34.Re3
   5	00:00	      14.110	114.671	+0.12	33. ... Qa6 34.Rc2
   5	00:00	      15.125	109.843	+0.15	33. ... Qc6 34.Re3
   5	00:00	      11.230	104.541	+0.17	33. ... Qd6 34.Re3
   5	00:00	      10.447	112.607	+0.20	33. ... Bb7 34.Re3
   5	00:00	      18.853	111.592	+0.48	33. ... c6 34.Re3
---------------------------------------------------------------------------
   6	00:00	      29.803	121.586	+0.15	33. ... Qc6 34.Re3 Qd6
   6	00:00	      26.163	114.003	+0.15	33. ... Bb7 34.Re3 Qc6
   6	00:00	      39.649	117.682	+0.17	33. ... Rd7 34.Re3 Bb7
   6	00:00	      42.488	120.854	+0.21	33. ... c3 34.bxc3 Rb3
   6	00:00	      27.867	121.428	+0.22	33. ... Qd6 34.Re3 Rf8
   6	00:00	      23.396	117.438	+0.52	33. ... c6 34.Kh2 Rb7
---------------------------------------------------------------------------
   7	00:00	      67.116	125.413	+0.16	33. ... Rd7 34.Re3 Bb7 35.Rc3
   7	00:00	      79.122	129.426	+0.17	33. ... Qa6 34.Rc2 Qd6 35.Re3
   7	00:00	      76.850	129.007	+0.17	33. ... Qc6 34.Re3 Qd6 35.Rc2
   7	00:00	      55.222	124.553	+0.18	33. ... Qd6 34.Re3 Rf8 35.Rc2
   7	00:00	      61.988	123.014	+0.29	33. ... c3 34.bxc3 Qc6 35.Qe1
   7	00:00	      51.071	123.632	+0.47	33. ... c6 34.Re1 Rb7 35.f5
---------------------------------------------------------------------------
   8	00:01	     117.371	132.511	+0.17	33. ... Qd6 34.Re3 Rf8 35.Rc3 Re8
   8	00:01	     177.496	132.090	+0.19	33. ... Bb7 34.Rc2 Qd6 35.Kh2 Bd5
   8	00:01	     107.669	132.995	+0.29	33. ... c3 34.bxc3 Qc6 35.Qe1 Qxc3
   8	00:01	     196.548	132.760	+0.37	33. ... Qa5 34.Re3 c3 35.bxc3 Rb1+ 36.Kh2
   8	00:01	     149.518	135.973	+0.39	33. ... Rd7 34.Re3 c6 35.Ree2 Rf7 36.Kh2
Rb7 37.Qe1 Rb8
   8	00:01	     100.350	131.404	+0.51	33. ... c6 34.Kh2 Rb7 35.Qe1 Rb8
---------------------------------------------------------------------------
   9	00:03	     453.236	132.000	+0.18	33. ... Qc6 34.Re3 Qd6 35.Rc2 Rf8 36.Qe2
   9	00:03	     315.645	130.068	+0.29	33. ... Qa5 34.Re3 c3 35.bxc3 Rb1+ 36.Kh2
Qb5
   9	00:03	     330.947	130.593	+0.33	33. ... c3 34.bxc3 Qc6 35.Qe1 Qxc3 36.Re3
   9	00:03	     436.071	130.451	+0.41	33. ... Qd6 34.Re3 Rf8 35.Rc3 Rfb8 36.Re3
   9	00:03	     303.919	129.294	+0.57	33. ... Rd7 34.Kh2 c6 35.Qe1 Bf3 36.Rxe6
   9	00:03	     236.173	132.225	+0.64	33. ... c6 34.Kh2 Rb7 35.Qe1 Rb8 36.Qc1
---------------------------------------------------------------------------
  10	00:07	     865.801	133.501	+0.39	33. ... Qa5 34.Rd1 Rb3 35.Re3 c3 36.bxc3
Rxa3
  10	00:07	     629.765	133.102	+0.42	33. ... Rd7 34.Re5 c3 35.bxc3 Rb3 36.Rc2
Rxa3
  10	00:07	     707.190	132.776	+0.47	33. ... Qd6 34.Re3 Rf8 35.h5 gxh5 36.gxh5
Rb3 37.Rxb3
  10	00:07	     958.571	135.670	+0.48	33. ... Rb3 34.Re3 c3 35.Rxc3 Rxc3 36.bxc3
Qb3 37.Re2 Qxa3
  10	00:07	     550.322	131.604	+0.51	33. ... c6 34.Kh2 Qa5 35.Re3 Rfb7 36.Ree2
c3
  10	00:07	     775.921	132.401	+0.53	33. ... c3 34.bxc3 Rb3 35.Rb2 Qd6 36.Qe1
c5
---------------------------------------------------------------------------
  11	00:11	   1.375.744	135.771	+0.39	33. ... Qd6 34.Re3 Rf8 35.Qf1 Rfb8 36.Qb1
Qc6 37.Qxg6
  11	00:11	   1.032.486	136.140	+0.54	33. ... c3 34.bxc3 Rb3 35.Rb2 Qd6 36.Qe1
c5 37.Rec2
  11	00:11	   1.483.477	136.350	+0.55	33. ... Rd7 34.Re3 c6 35.Ree2 Rb7 36.f5 c3
37.bxc3
  11	00:11	   1.613.282	138.011	+0.56	33. ... Qa5 34.Re3 c6 35.Kh2 Rfb7 36.Ree2
Rb3 37.Re3
  11	00:11	   1.224.969	134.690	+0.58	33. ... c6 34.Kh2 Rb7 35.Qe1 Rb8 36.Qc1
Qa7 37.Re3
  11	00:11	   1.280.073	135.735	+0.67	33. ... Rb3 34.Re3 c3 35.Rxc3 Rxc3 36.bxc3
Qb3 37.Rc2 Qxa3 38.Qd2
---------------------------------------------------------------------------
  12	00:24	   2.452.918	141.381	+0.56	33. ... Rd7 34.Re3 c6 35.Qe2 Rb7 36.Rxe6
Rxb2 37.h5 Rb1+ 38.Kf2
  12	00:24	   2.240.151	142.523	+0.56	33. ... Qa5 34.Re3 c6 35.Kh2 Rfb7 36.Rc3
Qb6 37.Rcc2 Rb3
  12	00:24	   2.576.731	142.019	+0.66	33. ... c3 34.bxc3 Rb3 35.Rb2 Qd6 36.Qe1
c5 37.Rxb3 axb3 38.a4
  12	00:24	   1.872.054	139.093	+0.69	33. ... Rb3 34.Re3 c3 35.Rxc3 Rxc3 36.bxc3
Qb3 37.Rc2 Qxa3 38.Qd2 Qd6
  12	00:24	   3.373.856	139.848	+0.70	33. ... Qb8 34.Rc2 Rb3 35.Re3 Rd3 36.Rd2
Qb3 37.Rexd3 cxd3 38.Qe3
  12	00:24	   2.066.489	141.062	+0.70	33. ... c6 34.Kh2 Rb7 35.Qe1 Rb8 36.Qc1
Qa7 37.Re3 Qb7
---------------------------------------------------------------------------
  13	00:42	   5.823.509	141.507	+0.58	33. ... Rd7 34.Re3 c6 35.Qe2 Rf7 36.h5
gxh5 37.gxh5 Rb7 38.Rxe6 Rxb2
  13	00:42	   5.437.735	142.428	+0.65	33. ... Qa5 34.Re3 c6 35.Qe1 Qb6 36.Qe2
Rf8 37.Rc3 Rb8 38.Rcc2
  13	00:42	   4.487.234	139.502	+0.75	33. ... Qb8 34.Rc2 Rb3 35.Re3 Rd3 36.Rd2
Qb3 37.Rexd3 cxd3 38.Qe3 Bc4
  13	00:42	   4.723.551	140.644	+0.79	33. ... Rb3 34.Re3 c3 35.Rxc3 Rxc3 36.bxc3
Qb3 37.Qe2 Qxa3 38.Qd3 Qb3 39.Rd1
  13	00:42	   4.975.375	141.211	+0.81	33. ... c3 34.bxc3 Rb3 35.Rb2 Qd6 36.Qe1
c5 37.Rxb3 axb3 38.a4 cxd4
  13	00:42	   4.150.143	138.198	+0.91	33. ... c6 34.h5 gxh5 35.gxh5 c3 36.bxc3
Rb3 37.Rb2 Bc4 38.Red2 Rb7
---------------------------------------------------------------------------
  14	01:37	  11.321.750	139.468	+0.68	33. ... Qa5 34.Re3 c6 35.Kh2 Rfb7 36.Rc3
Qb6 37.Rcc2 Rb3 38.Qe2 Qa5
  14	01:37	  12.835.485	135.259	+0.77	33. ... Rd7 34.Re3 c6 35.h5 gxh5 36.Qh2 h4
37.Bxh4 Rb7 38.Ree2 c3
  14	01:37	   7.958.531	142.387	+0.92	33. ... Rb3 34.Re3 c3 35.Rxc3 Rxc3 36.bxc3
Qb3 37.Qe2 Qxa3 38.Qd3 Be4 39.Qe3 Qc1+ 40.Kf2
  14	01:37	   7.409.485	140.994	+0.94	33. ... c3 34.bxc3 Rb3 35.Rb2 Qd6 36.Qe1
c5 37.Rxb3 axb3 38.a4 Ra7 39.dxc5
  14	01:37	   6.749.616	139.979	+0.95	33. ... c6 34.h5 gxh5 35.gxh5 c3 36.bxc3
Rb3 37.Rc2 Rxa3 38.Rc1 Bc4 39.Rd2
  14	01:37	  10.468.984	137.962	+0.99	33. ... Qb8 34.h5 gxh5 35.gxh5 c3 36.bxc3
Rb3 37.Rc2 Rxa3 38.c4 Ra1+ 39.Re1 Rxe1+ 40.Qxe1
---------------------------------------------------------------------------
  15	03:04	  21.779.656	132.455	+0.69	33. ... Rd7 34.Re3 c6 35.h5 gxh5 36.Qh2 h4
37.Bxh4 Rb7 38.Ree2 c3 39.bxc3
  15	03:04	  23.997.721	133.551	+0.81	33. ... Qa5 34.Re3 c6 35.Kh2 Rfb7 36.Rc3
Qb6 37.Rcc2 Rb3
  15	03:04	  18.877.247	132.016	+0.92	33. ... c3 34.bxc3 Rb3 35.Rb2 Qa7 36.Qe3
Rxa3 37.Qc1 Rb3 38.Ra2 a3 39.Kh2
  15	03:04	  15.449.496	132.524	+1.02	33. ... Qb8 34.h5 gxh5 35.gxh5 c3 36.bxc3
Rb3 37.Rc2 Rxa3 38.c4 Ra1+ 39.Re1 Rxe1+ 40.Qxe1
  15	03:04	  17.206.632	131.780	+1.10	33. ... c6 34.h5 gxh5 35.gxh5 c3 36.bxc3
Rb3 37.Rb2 Bc4 38.Red2 Rb7 39.Rbc2 Rb1+ 40.Kh2
  15	03:04	  20.505.200	133.434	+1.11	33. ... Rb3 34.Re3 c3 35.Rxc3 Rxc3 36.bxc3
Qb3 37.Qe3 Qxa3 38.Kf2 Qa1 39.Rc2 a3 40.Qc1
---------------------------------------------------------------------------
  16	09:23	  43.931.592	130.381	+0.78	33. ... Qa5 34.Re3 c6 35.Kh2 Rfb7 36.Rc3
Qb6 37.Rcc2 Rb3 38.Qe2 Rf7 39.Rc1 Qb8
  16	09:23	  62.233.956	113.016	+0.85	33. ... Rd7 34.Re5 Rb3 35.Re3 c6 36.Qe2
Rb7 37.Rxb3 axb3 38.Qe3 Qa5 39.Qe1 c3
  16	09:23	  31.548.633	132.945	+1.08	33. ... c6 34.h5 gxh5 35.gxh5 c3 36.bxc3
Rb3 37.Rb2 Bc4 38.Red2 Rb7 39.Rbc2 Rb1+ 40.Kh2
  16	09:23	  37.292.967	130.299	+1.14	33. ... Qb8 34.h5 gxh5 35.gxh5 c3 36.bxc3
Rb3 37.Rc2 Rxa3 38.c4 Ra1+ 39.Re1 Rxe1+ 40.Qxe1
  16	09:23	  40.858.473	130.212	+1.20	33. ... c3 34.bxc3 Rb3 35.Rb2 Qd6 36.Rxb3
axb3 37.a4 Qc6 38.Re3 Qxa4 39.Qb2 Rf8 40.Kf2
  16	09:23	  28.829.222	134.119	+1.37	33. ... Rb3 34.Re3 c3 35.Rxc3 Rxc3 36.bxc3
Qb3 37.Re2 Qxa3 38.Qe1 Qb3 39.h5 gxh5 40.f5





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