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Subject: another mate-in-16 from the archives...

Author: Mike Byrne

Date: 20:42:21 03/29/05



Black(1): [d]8/8/8/2p5/R1P5/P5p1/P3K1p1/6k1 w
White(1): g
crafty is behind  4.0 on time, reducing by 1/12.
              time surplus   0.00  time limit 10:00 (10:00)
              depth   time  score   variation (1)
                1     0.00  10.08   1. Ra8
                1->   0.01  10.08   1. Ra8
                2     0.01     -1   1. Ra8
                2     0.01   8.44   1. Ra8 Kh2
                2->   0.01   8.44   1. Ra8 Kh2
                3     0.01     +1   1. Ra8!!
                3     0.01     +3   1. Ra8!!
                3     0.01  10.58   1. Ra8 Kh2 2. Rh8+ Kg1 3. Rg8
                3->   0.03  10.58   1. Ra8 Kh2 2. Rh8+ Kg1 3. Rg8
                4     0.03     -1   1. Ra8
                4     0.04   8.91   1. Ra8 Kh2 2. Rh8+ Kg1 3. Rg8 Kh2
                4->   0.06   8.91   1. Ra8 Kh2 2. Rh8+ Kg1 3. Rg8 Kh2
                5     0.06     +1   1. Ra8!!
                5     0.06     +3   1. Ra8!!
                5     0.06  10.68   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. a4
                5->   0.06  10.68   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. a4
                6     0.07     -1   1. Ra8
                6     0.07   8.94   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. a4 Kh2
                6->   0.07   8.94   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. a4 Kh2 (s=3)
                7     0.07     +1   1. Ra8!!
                7     0.07     +3   1. Ra8!!
                7     0.07  11.78   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 (s=2)
                7->   0.07  11.78   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 (s=3)
                8     0.07  11.78   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 (s=2)
                8->   0.09  11.78   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 (s=3)
                9     0.09     -1   1. Ra8
                9     0.09   9.87   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 Kf2 (s=2)
                9->   0.11   9.87   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf2 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 Kf2 (s=3)
               10     0.12     +1   1. Ra8!!
               10     0.12     +3   1. Ra8!!
               10     0.12  12.49   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 Kh2 8. Rh5+ Kg1 9. c5 (s=2)
               10->   0.14  12.49   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 Kh2 8. Rh5+ Kg1 9. c5 (s=3)
               11     0.14     -1   1. Ra8
               11     0.15  11.24   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. Rf6 Kh2 6. Rh6+ Kg1 7.
                                    a4 Kf2 8. Rf6+ Kg1 9. Rf8 <HT> (s=2)
               11->   0.17  11.24   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. Rf6 Kh2 6. Rh6+ Kg1 7.
                                    a4 Kf2 8. Rf6+ Kg1 9. Rf8 <HT> (s=3)
               12     0.17     +1   1. Ra8!!
               12     0.18  12.55   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. Rh5
                                    Kf2 8. Rf5+ Kg1 9. Rxc5 <HT> (s=2)
               12->   0.20  12.55   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. Rh5
                                    Kf2 8. Rf5+ Kg1 9. Rxc5 <HT> (s=3)
               13     0.23     +1   1. Ra8!!
               13     0.23     +3   1. Ra8!!
               13     0.23     +M   1. Ra8!!
               13     0.26  18.76   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. a5
                                    Kf1 8. Rf8+ Kg1 9. a6 Kh2 10. Rh8+
                                    Kg1 11. a7 Kf1 12. Rf8+ Kg1 13. a8=Q
                                    (s=2)
               13->   0.34  18.76   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. a5
                                    Kf1 8. Rf8+ Kg1 9. a6 Kh2 10. Rh8+
                                    Kg1 11. a7 Kf1 12. Rf8+ Kg1 13. a8=Q
                                    (s=3)
               14     0.42  18.76   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. a5
                                    Kf1 8. Rf8+ Kg1 9. a6 Kh2 10. Rh8+
                                    Kg1 11. a7 Kf1 12. Rf8+ Kg1 13. a8=Q
                                    (s=2)
               14->   0.50  18.76   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. a5
                                    Kf1 8. Rf8+ Kg1 9. a6 Kh2 10. Rh8+
                                    Kg1 11. a7 Kf1 12. Rf8+ Kg1 13. a8=Q
                                    (s=3)
               15     0.79     -1   1. Ra8
               15     1.06  17.02   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. a5
                                    Kf1 8. Rf8+ Kg1 9. a6 Kh2 10. Rh8+
                                    Kg1 11. a7 Kf1 12. Rf8+ Kg1 13. a8=Q
                                    Kh2 (s=2)
               15->   1.29  17.02   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. a4 Kh2 6. Rh8+ Kg1 7. a5
                                    Kf1 8. Rf8+ Kg1 9. a6 Kh2 10. Rh8+
                                    Kg1 11. a7 Kf1 12. Rf8+ Kg1 13. a8=Q
                                    Kh2 (s=2)
               16     1.31     +1   1. Ra8!!
               16     1.31     +3   1. Ra8!!
               16     1.72  19.97   1. Ra8 Kh2 2. Rh8+ Kg1 3. Kd2 Kf1 4.
                                    Rf8+ Kg1 5. Rf5 Kh2 6. Rh5+ Kg1 7.
                                    Rxc5 Kf1 8. Rf5+ Kg1 9. c5 Kh2 10.
                                    Rh5+ Kg1 11. c6 Kf1 12. Rf5+ Kg1 13.
                                    c7 Kh2 14. Rh5+ Kg1 15. c8=Q
               16     1.92     +1   1. Ra7!!
               16     1.93     +3   1. Ra7!!
               16     1.93     +M   1. Ra7!!
               16     2.09  Mat16   1. Ra7 Kh2 2. Rh7+ Kg1 3. Kd2 Kf1 4.
                                    Rf7+ Kg1 5. a4 Kh2 6. Rh7+ Kg1 7. a5
                                    Kf1 8. Rf7+ Kg1 9. a6 Kh2 10. Rh7+
                                    Kg1 11. a7 Kf1 12. Rf7+ Kg1 13. a8=Q
                                    Kh2 14. Qh8+ Kg1 15. Qa1+ Kh2 16. Rh7#
               16->   2.18  Mat16   1. Ra7 Kh2 2. Rh7+ Kg1 3. Kd2 Kf1 4.
                                    Rf7+ Kg1 5. a4 Kh2 6. Rh7+ Kg1 7. a5
                                    Kf1 8. Rf7+ Kg1 9. a6 Kh2 10. Rh7+
                                    Kg1 11. a7 Kf1 12. Rf7+ Kg1 13. a8=Q
                                    Kh2 14. Qh8+ Kg1 15. Qa1+ Kh2 16. Rh7#
                                    (s=3)
               17     3.62  Mat16   1. Ra7 Kh2 2. Rh7+ Kg1 3. Kd2 Kf1 4.
                                    Rf7+ Kg1 5. a4 Kh2 6. Rh7+ Kg1 7. a5
                                    Kf1 8. Rf7+ Kg1 9. a6 Kh2 10. Rh7+
                                    Kg1 11. a7 Kf1 12. Rf7+ Kg1 13. a8=Q
                                    Kh2 14. Qh8+ Kg1 15. Qa1+ Kh2 16. Rh7#
                                    (s=2)
               17->   4.84  Mat16   1. Ra7 Kh2 2. Rh7+ Kg1 3. Kd2 Kf1 4.
                                    Rf7+ Kg1 5. a4 Kh2 6. Rh7+ Kg1 7. a5
                                    Kf1 8. Rf7+ Kg1 9. a6 Kh2 10. Rh7+
                                    Kg1 11. a7 Kf1 12. Rf7+ Kg1 13. a8=Q
                                    Kh2 14. Qh8+ Kg1 15. Qa1+ Kh2 16. Rh7#
                                    (s=2)
?              18     4.84   1/11*  1. Ra7
White(1): ?
              time=7.23  cpu=182%  mat=5  n=35048203  fh=99%  nps=4.85M
              ext-> chk=1905871 cap=2528 pp=140305 1rep=50464 mate=6230
              predicted=0  nodes=35048203  evals=2645945  50move=0
              endgame tablebase-> probes=31794  hits=0
              SMP->  split=2581  stop=24  data=10/64  cpu=13.20  elap=7.23

mate in 16 moves.



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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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