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Subject: Another position from the archive...

Author: Mike Byrne

Date: 16:59:10 07/28/02


http://www.it.ro/ccc_search/ccc.php?art_id=146929

Crafty v17.14 SE (2 cpus) (available for for free via e-mail o
mfbyrne_pa@msn.com)

White(1):[D] R7/8/6k1/4n3/5p2/5P2/5r1p/7K b - - 0 1 bm Rxf3
(Nxf3=draw)




Black(1): go
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 10:00 (10:00)
         nss  depth   time  score   variation (1)
starting thread 1
                7->   1.03   8.29   1. ... Nxf3 2. Rh8 Kg5 3. Rh3 Rf1+
                                    4. Kg2 Rg1+ 5. Kxf3 Rg3+ 6. Rxg3+ fxg3
                                    7. Kg2 Kh4
                8     1.53   8.52   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd4 5. Rd8+ Kc5 6. Rc8+ Kd5
                                    7. Rd8+ Ke4 8. Rd4+ Ke5 9. Re4+ Kd5
                                    10. Rd4+ Ke6 <HT>
                8->   2.25   8.52   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd4 5. Rd8+ Kc5 6. Rc8+ Kd5
                                    7. Rd8+ Ke4 8. Rd4+ Ke5 9. Re4+ Kd5
                                    10. Rd4+ Ke6 <HT>
                9     2.87   8.51   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd4 5. Rd8+ Ke4 6. Rd4+ Ke5
                                    7. Re4+ Kd5 8. Rd4+ Kc5 9. Rd1 Nh4
                                    10. Rd8
                9->   5.11   8.51   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd4 5. Rd8+ Ke4 6. Rd4+ Ke5
                                    7. Re4+ Kd5 8. Rd4+ Kc5 9. Rd1 Nh4
                                    10. Rd8
               10     6.34   8.51   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd4 5. Rd8+ Ke4 6. Rd4+ Ke5
                                    7. Re4+ Kd5 8. Rd4+ Kc5 9. Rd5+ Kc6
                                    10. Rd1 <HT>
         (2)   10->  13.72   8.51   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd4 5. Rd8+ Ke4 6. Rd4+ Ke5
                                    7. Re4+ Kd5 8. Rd4+ Kc5 9. Rd5+ Kc6
                                    10. Rd1 <HT>
Black(0): d
               11    18.28   8.20   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd5 5. Rd8+ Ke4 6. Rd4+ Ke5
                                    7. Re4+ Kd5 8. Rd4+ Kc5 9. Rd5+ Kc6
                                    10. Rd6+ Kb5 11. Rd5+ Kb6 12. Rd8
         (4)   11->  49.81   8.20   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke5
                                    4. Re8+ Kd5 5. Rd8+ Ke4 6. Rd4+ Ke5
                                    7. Re4+ Kd5 8. Rd4+ Kc5 9. Rd5+ Kc6
                                    10. Rd6+ Kb5 11. Rd5+ Kb6 12. Rd8
               12    57.83     --   1. ... Nxf3
         (3)   12     1:05   7.45   1. ... Nxf3 2. Rg8+ Kf5 3. Rf8+ Ke6
                                    4. Re8+ Kd5 5. Rd8+ Kc5 6. Rc8+ Kd6
                                    7. Rd8+ Ke7 8. Re8+ Kf6 9. Rf8+ Ke5
                                    10. Re8+ Kd4 <HT>
               12     1:09     ++   1. ... Rxf3!!
         (2)   12     1:25   7.94   1. ... Rxf3 2. Kxh2 Ng4+ 3. Kg2 Rg3+
                                    4. Kh1 f3 5. Rg8+ Kf5 6. Rf8+ Nf6 7.
                                    Rd8 Rh3+ 8. Kg1 Ng4 9. Rf8+ Ke5 10.
                                    Re8+ Kf4 11. Rf8+ Kg3 12. Rf7 Rh2 13.
                                    Rg7
Black(0): d
         (3)   12->   2:14   7.94   1. ... Rxf3 2. Kxh2 Ng4+ 3. Kg2 Rg3+
                                    4. Kh1 f3 5. Rg8+ Kf5 6. Rf8+ Nf6 7.
                                    Rd8 Rh3+ 8. Kg1 Ng4 9. Rf8+ Ke5 10.
                                    Re8+ Kf4 11. Rf8+ Kg3 12. Rf7 Rh2 13.
                                    Rg7
               13     2:34     ++   1. ... Rxf3!!
Black(0): ?
              time=3:01  cpu=206%  mat=3  n=207286161  fh=90%  nps=1141380
              ext-> checks=13238307 recaps=302819 pawns=638860 pawn_sac=0
              ext->  1rep=542356 thrt:101024 boos:0
              predicted=0  nodes=207286161  evals=23391190
              endgame tablebase-> probes done=27136  successful=27136
              SMP->  split=2828  stop=445  data=11/64  cpu=6:14  elap=3:01
============================================================================

same position - force Nxf3

Black(1): Nxf3
              time used:  40.67
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 10:00 (10:00)
         nss  depth   time  score   variation (1)
                9     0.53  -8.20   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd4
                                    5. Rd6+ Ke4 6. Re6+ Kd5 7. Rd6+ Kc4
                                    8. Rc6+ Kb5 9. Rb6+ <HT>
                9->   0.55  -8.20   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd4
                                    5. Rd6+ Ke4 6. Re6+ Kd5 7. Rd6+ Kc4
                                    8. Rc6+ Kb5 9. Rb6+ <HT>
               10     2.16  -8.20   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd4
                                    5. Rd6+ Ke4 6. Re6+ Kd5 7. Rd6+ Kc4
                                    8. Rc6+ Kb5 9. Rb6+ Kc5 10. Rc6+ Kb4
                                    <HT>
               10->   2.23  -8.20   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd4
                                    5. Rd6+ Ke4 6. Re6+ Kd5 7. Rd6+ Kc4
                                    8. Rc6+ Kb5 9. Rb6+ Kc5 10. Rc6+ Kb4
                                    <HT>
               11     5.16     ++   2. Ra6+!!
               11     7.11  -4.96   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd5
                                    5. Rd6+ Ke4 6. Re6+ Kd3 7. Rd6+ Kc3
                                    8. Rc6+ <HT>
               11->   7.20  -4.96   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd5
                                    5. Rd6+ Ke4 6. Re6+ Kd3 7. Rd6+ Kc3
                                    8. Rc6+ <HT>
               12    10.27     ++   2. Ra6+!!
               12    13.52  -2.43   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd4
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kf3
                                    8. Rf5 Rf1+ 9. Kxh2 Kg4 10. Rf8 Rf2+
                                    11. Kg1 Rd2 12. Rg8+ Kf5 13. Rf8+ Ke4
                                    14. Re8+ Kf5 15. Re7 f3 <HT>
               12->  13.59  -2.43   2. Ra6+ Kf5 3. Rf6+ Ke5 4. Re6+ Kd4
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kf3
                                    8. Rf5 Rf1+ 9. Kxh2 Kg4 10. Rf8 Rf2+
                                    11. Kg1 Rd2 12. Rg8+ Kf5 13. Rf8+ Ke4
                                    14. Re8+ Kf5 15. Re7 f3 <HT>
               13    17.19     ++   2. Ra6+!!
               13    21.39  -1.29   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd2 Rf1+ 12. Kxh2 f3 13. Kg3 Kc4
                                    14. Kg4
               13->  21.53  -1.29   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd2 Rf1+ 12. Kxh2 f3 13. Kg3 Kc4
                                    14. Kg4
               14    29.25  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Ka4 12. Rd4+ <HT>
               14->  29.37  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Ka4 12. Rd4+ Ka3 13. Ra4+
                                    Kb2 14. Ra2+ Kxa2 <HT>
               15    33.39  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Ka4 12. Rd4+ Ka5 13. Rd2 Rf1+
                                    <HT>
               15->  33.70  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Ka4 12. Rd4+ Ka5 13. Rd2 Rf1+
                                    <HT>
               16    43.08  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Ka4 12. Rd4+ Ka5 13. Rd2 Rf1+
                                    14. Kxh2 <HT>
               16->  43.98  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Ka4 12. Rd4+ Ka5 13. Rd2 Rf1+
                                    14. Kxh2 <HT>
               17    52.00  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Kc4 12. Rc5+ Kb3 13. Rc3+
                                    Ka4 14. Rc2 Rf1+ 15. Kxh2 f3 16. Kg3
                                    Kb3 17. Rd2
               17->  53.30  -1.19   2. Ra6+ Kf5 3. Rf6+ Ke4 4. Re6+ Kd3
                                    5. Rd6+ Ke3 6. Re6+ Ne5 7. Rxe5+ Kd3
                                    8. Rd5+ Kc3 9. Rd3+ Kb4 10. Rd4+ Kb5
                                    11. Rd5+ Kc4 12. Rc5+ Kb3 13. Rc3+
                                    Ka4 14. Rc2 Rf1+ 15. Kxh2 f3 16. Kg3
                                    Kb3 17. Rd2
White(2): ?
              time=1:00  cpu=193%  mat=-4  n=68144443  fh=93%  nps=1120612
              ext-> checks=4148115 recaps=81288 pawns=250846 pawn_sac=0
              ext->  1rep=71207 thrt:11566 boos:0
              predicted=0  nodes=68144443  evals=8089634
              endgame tablebase-> probes done=3864  successful=3864
              SMP->  split=8732  stop=837  data=18/64  cpu=1:57  elap=1:00




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