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Subject: Re: test position

Author: Jaime Benito de Valle Ruiz

Date: 15:39:05 11/10/04

Go up one level in this thread


On November 10, 2004 at 17:45:33, Mike Byrne wrote:

I might be wrong, but... the predicted sequence doesn't look right:

21->   2:49   4.70   1. Kf1 Kd1 2. Kg1 Kc1 3. Kh2 Kd1 4.
>                                    Kh3 Ke1 5. Kh4 Kf1 6. Rg5 Ke2 7. Kh5
>                                    Kd3 8. Kg6 Kxc3 9. Kh7 Rxg7+ 10. Kxg7
>                                    Kb3 11. Rg6 c3 12. Rc6 c4 (s=5)

This is the final position, and it doesn't seem to be worth 4.70:
[d]8/6K1/2R5/8/2p5/1kp5/8/8 w - - 0 13


>I posted this earlier and there were no responses - perhaps the subject heading
>was misleading:
>
>[d]6r1/33P1/8/2p5/2p5/2P5/6R1/2k1K3 w
>
>White(1): g
>end-game phase
>              clearing hash tables
>              time surplus  56.59  time limit 3:00 (3:00)
>              time surplus  56.59  time limit 3:00 (3:00)
>              depth   time  score   variation (1)
>               11     0.13   1.72   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Kd2
>               11->   0.17   1.72   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Kd2
>               12     0.27   1.64   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Kd2 Kc6
>               12->   0.36   1.64   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Kd2 Kc6
>               13     0.72   1.72   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Kd2 Kc6 7. Ke3
>               13->   0.88   1.72   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Kd2 Kc6 7. Ke3
>               14     1.58   1.72   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5
>               14->   1.94   1.72   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5
>               15     3.08   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5 8. Ke3
>               15->   3.86   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5 8. Ke3
>               16     5.72   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Ka5 8. Ke3 Kb5
>               16->   7.17   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Ka5 8. Ke3 Kb5
>               17    10.41   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5 8. Ke3 Re8+ 9. Kf4 Rg8
>               17->  12.97   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5 8. Ke3 Re8+ 9. Kf4 Rg8
>               18    18.21   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5 8. Ke3 Ka4 9. Kf4 Kb3
>               18->  23.22   1.80   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Kb5 8. Ke3 Ka4 9. Kf4 Kb3
>               19    33.58   1.92   1. Ke2 Kc2 2. Rg3 Kb2 3. Kd2 Kb3 4.
>                                    Kc1 Ka4 5. Kc2 Kb5 6. Rg6 Ka4 7. Kd2
>                                    Rd8+ 8. Ke3 Rg8 9. Ke4 Kb3 10. Rg3
>                                    <HT>
>               19    46.82     +1   1. Kf1!!
>               19    48.46   2.88   1. Kf1 Kd1 2. Kg1 Kc1 3. Kh2 Kd1 4.
>                                    Kh3 Ke1 5. Kh4 Kf1 6. Rg5 Ke2 7. Kh5
>                                    Kd3 8. Kg6 Ra8 9. Kf7 Ra7+ 10. Kf8
>                                    Ra8+ 11. Kf7
>               19->  48.47   2.88   1. Kf1 Kd1 2. Kg1 Kc1 3. Kh2 Kd1 4.
>                                    Kh3 Ke1 5. Kh4 Kf1 6. Rg5 Ke2 7. Kh5
>                                    Kd3 8. Kg6 Ra8 9. Kf7 Ra7+ 10. Kf8
>                                    Ra8+ 11. Kf7 (s=7)
>               20    51.94     +1   1. Kf1!!
>               20    55.77     +3   1. Kf1!!
>               20     1:02   4.94   1. Kf1 Kd1 2. Kg1 Kc1 3. Kh2 Kd1 4.
>                                    Kh3 Ke1 5. Kh4 Kf1 6. Rg5 Ke2 7. Kh5
>                                    Kd3 8. Kg6 Kxc3 9. Kh7 Rxg7+ 10. Kxg7
>                                    Kb3 11. Kf8 c3 12. Ke7 (s=6)
>               20->   1:27   4.94   1. Kf1 Kd1 2. Kg1 Kc1 3. Kh2 Kd1 4.
>                                    Kh3 Ke1 5. Kh4 Kf1 6. Rg5 Ke2 7. Kh5
>                                    Kd3 8. Kg6 Kxc3 9. Kh7 Rxg7+ 10. Kxg7
>                                    Kb3 11. Kf8 c3 12. Ke7 (s=5)
>               21     1:41   4.70   1. Kf1 Kd1 2. Kg1 Kc1 3. Kh2 Kd1 4.
>                                    Kh3 Ke1 5. Kh4 Kf1 6. Rg5 Ke2 7. Kh5
>                                    Kd3 8. Kg6 Kxc3 9. Kh7 Rxg7+ 10. Kxg7
>                                    Kb3 11. Rg6 c3 12. Rc6 c4 (s=4)
>               21->   2:49   4.70   1. Kf1 Kd1 2. Kg1 Kc1 3. Kh2 Kd1 4.
>                                    Kh3 Ke1 5. Kh4 Kf1 6. Rg5 Ke2 7. Kh5
>                                    Kd3 8. Kg6 Kxc3 9. Kh7 Rxg7+ 10. Kxg7
>                                    Kb3 11. Rg6 c3 12. Rc6 c4 (s=5)
>              time=3:00  cpu=186%  mat=0  n=261465612  fh=95%  nps=1.45M
>              ext-> chk=15867804 cap=122528 pp=16703675 1rep=171681 mate=35220
>              predicted=0  nodes=261465612  evals=31315547  50move=0
>              endgame tablebase-> probes=0  hits=0
>              SMP->  split=12451  stop=798  data=8/128  cpu=5:36  elap=3:00



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