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Subject: Re: Two Test Positions = Queen and Pawn Endings

Author: Jorge Pichard

Date: 15:33:26 04/30/04

Go up one level in this thread


On April 30, 2004 at 17:21:34, José Antônio Fabiano Mendes wrote:

> [D]7k/6p1/2P3Qp/p3q2P/8/6P1/5K2/8 w
> Bogoljubow vs Stahlberg, Kemeri 1933  1. Qc2!! Qxh5 2. Qc4!
>
> [D]8/8/p7/2Q5/1P6/1P3qp1/3k4/6K1 b
> Grigoriev 1930  1...Kd1!
> The immediate transposition into a pawn ending leads only to a draw.


On the first position most engines select Kg2 as the best move and on the second
position Smarthink is one of the fastest to select the correct move.


ELChinito 3.25  WB1 39 MB:
   8	00:01	     183.427	244.569	+0.86	Kg2 Qe2+ Kh3 Qf1+ Kg4 Qc4+ Kf5 Qc5+ Kf4
Qc1+ Ke5 Qc5+ Ke4 Kg8
   9	00:02	     447.032	259.902	+0.68	Kg2 a4 Qc2 Qd5+ Kf2 Qf7+ Ke3 Qc7 Qxa4
Qxg3+ Ke2 Qh2+ Kd3 Qxh5
  10	00:03	     801.536	266.291	+0.43	Kg2 a4 Qc2 Qd5+ Kf2 Qf7+ Ke3 a3 c7 Qe8+
Kf4 Qc8 Qc4 Kh7
  11	00:10	   2.506.284	250.378	+0.63	Kg2 a4 Qc2 Qd5+ Kf2 Qf7+ Ke3 Qa7+ Ke4 a3
c7 Qb7+ Ke5 Qc8 Kd6 Kg8
  12	00:17	   4.376.160	257.118	+0.39	Kg2 a4 Qc2 Qd5+ Kf2 Qf7+ Ke3 a3 c7 Qe6+
Kf3 Qc8 Kf4 a2 Qxa2 Qxc7+ <HT>
  13	00:58	  15.139.345	258.438	+0.44	Kg2 a4 Qc2 Qd5+ Kg1 Qd4+ Kh2 Qg4 c7 Qc8
Qxa4 Qxc7 Qe8+ Kh7 Qg6+ Kg8 Kh3
  14	02:13	  34.719.900	261.051	+0.47	Kg2 Qd5+ Kh2 Qf3 Kg1 a4 Qd6 Qe4 Kf2 a3
Qxa3 Qxc6 Qf8+ Kh7 Ke3




SmarThink  WB1 29 MB:
   5	00:00	      11.269	1.518	+2.02	f3b3 g1g2
   5	00:00	      15.878	2.128	+1.94	f3b3 g1g2 b3d3 c5c7 d3a3 c7g3
   5	00:00	      41.060	5.409	+1.95	f3e2 c5d6 e2d3 d6d3 d2d3 g1g2 d3c3 g2g3 c3b3
   5	00:00	      49.852	6.550	+1.95	f3e2 c5d4 e2d3 d4b2 d2e3 g1g2 e3f4 b2f6
   5	00:00	      55.528	7.258	+1.96	f3e4 c5d6 e4d3 d6d3 d2d3 g1g2 d3c3 g2g3 c3b3
   5	00:00	      64.571	8.418	+2.10	f3e4 c5d6 e4d3 d6c6 d3e3 g1g2 e3f2 g2h3 f2h2
h3g4 g3g2 c6d5 d2e3
   5	00:00	      68.766	8.953	+2.11	d2d1 c5d6 d1c2 d6g6 c2b3 g6a6 f3f2
   5	00:00	      73.810	9.585	+2.25	d2d1 c5b6 d1c2
   6	00:00	      84.940	10.931	+2.26	d2d1 c5b6 d1c2
   6	00:00	      85.561	11.011	+2.26	d2d1
   7	00:00	     124.869	15.687	+2.27	d2d1
   8	00:01	     276.462	32.372	+2.28	d2d1
   9	00:02	     590.915	61.746	+2.29	d2d1
  10	00:04	   1.272.555	284.052	+2.30	d2d1
  11	00:10	   3.433.024	327.266	+2.31	d2d1
  12	00:28	   9.444.901	334.096	+2.32	d2d1
  13	01:18	  27.644.994	354.423	+2.33	d2d1





ELChinito 3.25  WB1 39 MB:
   7	00:01	     152.818	288.335	+1.17	Qe3+ Kg2 Qf4 Qd5+ Kc3 Qc6+ Kxb3 Qxa6 Qf2+
Kh3 Kxb4
   7	00:01	     194.585	286.154	+1.57	Qe2
   7	00:01	     217.642	286.371	+1.94	Qe2 Qd6+ Kc3 Qxg3+ Kxb4 Qb8+ Qb5 Qg8 Qc5+
Kf1 Qc1+ Ke2 Qc2+ Ke3 Qxb3+
   8	00:01	     369.417	286.369	+1.98	Qe2 Qd6+ Qd3 Qf6 Kc2 Kg2 Kxb3 Qb6
   9	00:03	     742.908	286.837	+1.81	Qe2 Qd4+ Qd3 Qc5 Qxb3 Kg2 Ke2 Qe7+ <HT>
  10	00:06	   1.692.742	266.154	+1.79	Qe2 Qd4+ Qd3 Qc5 Qxb3 Kg2 Qd3 Qc7 Qe4+
Kxg3 Qxb4
  10	00:09	   2.522.136	269.171	+1.82	Qxb3 Kg2 Qa3 Qd6+ Qd3 Qc7 Kd1 Kh3 g2+ Kxg2
Qc2+ Qxc2+ Kxc2 Kf3
  11	00:16	   4.515.208	275.653	+1.77	Qxb3 Kg2 Qd3 Kh3 Kd1 Kg2 Ke1 Qf8 Ke2 Qf4
Qc3 Qxg3 Qxb4
  11	00:20	   5.854.039	280.231	+1.87	Qe2 Qd6+ Kc3 Qxg3+ Kxb4 Qb8+ Qb5 Qf4+ Kxb3
Qe3+ Kc2 Qf2+ Kc3 Qe3+ Kc4 Qe6+ Kc5 Qe5+ Kb4 Qb2+ Kc5 Qe5+ <HT>
  12	00:26	   7.383.370	282.454	+1.88	Qe2 Qd6+ Kc3 Qxg3+ Kxb4 Qb8+ Qb5 Qf4+ Kxb3
Qe3+ Kc2 Qf2+ Kc3 Qe1+ Kd3 Qf1+ Ke3 Qe1+ Qe2 Qg3+ Ke4 Qd6
  12	00:47	  13.627.521	285.872	+1.92	Qf2+ Qxf2+ gxf2+ Kxf2 Kc3 Ke3 Kxb4 Kd2
Kxb3 Kc1 Ka2 Kc2 a5 Kc1 a4
  13	00:48	  13.727.013	284.970	+1.82	Qf2+ Qxf2+ gxf2+ Kxf2 Kc3 Ke3 Kxb4 Kd2
Kxb3 Kc1 Ka2 Kc2 a5 Kc1 a4 Kc2
  13	01:53	  32.708.298	289.453	+2.22	Kd1





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