Author: Uri Blass
Date: 13:50:24 05/09/02
Go up one level in this thread
On May 09, 2002 at 14:35:30, José Carlos wrote: <snipped> > You said: > >"I think that the most important knowledge for amateurs is search knowledge and >the proof is that a lot of program without that knowledge are clearly better >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >than Averno." > > But then you didn't mention "a lot" and you're not sure they don't know about >opposition, so the "proof" is not valid. > And you also said: > >"I did not check more programs but it seems that almost nothing can see based on >2 plies search that Qg5+ is better for white." > > Something can be seen, and very easily, BTW. In two plies (with the check >extensions), it can be seen that Qg5+ Qxg5+ Kxg5 Kg3! is better for white >because of opposition. > The fact that Junior can't see it doesn't mean that no one else can see it. >It's just Junior that doesn't have the knowledge. Of course, Junior is a very >good program in many other areas, but that doesn't mean it doesn't have defects. > > José C. I did not say that programs do not have defects. I believe that more than 90% of the programs have the defect of not considering opposition in their evaluation I tried shredder5.32 on p200 and you can see that it also does not have the knowledge and in the first plies it likes Qg5+ and does not see Kg3 in the main line. I also plan to continue to have this defect in the evaluation of my program at least in the next year because I do not consider it as important. New position [D]8/8/8/3Q3k/p2p1q2/P2P4/6K1/8 b - - 0 1 Analysis by Shredder 5.32: 1...Kg4 ³ (-0.56) Depth: 1/2 00:00:00 1...Kg4 2.Qd7+ Kh5 ³ (-0.28) Depth: 2/4 00:00:00 1...Kg4 2.Qd7+ Kg5 3.Qxa4 = (0.25) Depth: 2/4 00:00:00 1...Kg4 2.Qd7+ Kg5 3.Qxa4 = (0.25) Depth: 2/4 00:00:00 1...Kh4 2.Qf3 = (0.18) Depth: 2/4 00:00:00 1...Kh4 2.Qf3 = (0.18) Depth: 2/4 00:00:00 1...Kg6 2.Qe4+ Qxe4+ 3.dxe4 = (0.15) Depth: 2/4 00:00:00 1...Kg6 2.Qc6+ Kf5 3.Qxa4 = (0.02) Depth: 2/4 00:00:00 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf1 = (-0.03) Depth: 2/4 00:00:00 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 = (-0.08) Depth: 2/4 00:00:00 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Ke2 = (-0.04) Depth: 3/6 00:00:00 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Ke2 = (-0.04) Depth: 4/8 00:00:00 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Ke2 Ke5 5.Kd2 Kd5 = (-0.17) Depth: 5/10 00:00:00 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Ke2 Ke5 5.Kd2 Kd5 = (-0.17) Depth: 6/12 00:00:00 4kN 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Ke2 Ke5 5.Kd2 Kd5 6.Kc2 Kc5 = (-0.18) Depth: 7/14 00:00:00 13kN 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Ke2 Ke5 5.Kd2 Kd5 6.Kc2 Kc5 = (-0.18) Depth: 8/16 00:00:01 29kN 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Kg3 Ke5 5.Kf3 Kd5 6.Kf4 Kd6 7.Ke4 Kc5 8.Ke5 Kc6 = (-0.12) Depth: 9/18 00:00:01 60kN 1...Qg5+ 2.Qxg5+ Kxg5 3.Kf3 Kf5 4.Kg3 Ke5 5.Kf3 Kd5 6.Kf4 Kd6 7.Ke4 Kc5 8.Ke5 Kc6 = (-0.12) Depth: 10/20 00:00:05 179kN 1...Qg5+ 2.Qxg5+ Kxg5 3.Kg3 Kf5 4.Kf3 Kg5 5.Ke4 Kg4 6.Kxd4 Kf4 7.Kc4 Ke3 8.Kb4 Kxd3 9.Kxa4 Kc4 = (0.14) Depth: 11/22 00:00:09 332kN 1...Qg5+ 2.Qxg5+ Kxg5 3.Kg3 Kf5 4.Kf3 Kg5 5.Ke4 Kg4 6.Kxd4 Kf4 7.Kc4 Ke3 8.Kb4 Kxd3 9.Kxa4 Kc4 ± (1.15) Depth: 11/22 00:00:09 362kN 1...Qg5+ 2.Kf1 ± (1.15) Depth: 11/22 00:00:12 445kN 1...Kg6 2.Qc6+ Kg7 3.Qb7+ Kf6 4.Qb6+ Kg5 5.Qc5+ Kh4 6.Qe7+ Qg5+ 7.Kf1 ± (1.14) Depth: 11/22 00:00:15 593kN 1...Kg6 2.Qc6+ Kg7 3.Qb7+ Kf6 4.Qb6+ Kg5 5.Qc5+ Kh4 6.Qe7+ Qg5+ 7.Kf1 ± (0.79) Depth: 11/22 00:00:23 989kN
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