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Subject: Deep Blue Test Position

Author: Mike Byrne

Date: 23:25:28 04/15/05


one of many from the match ...this is where Kasparov resigned? the second
game...

deep analysis later indicated that Qe3+! draws

modified Crafty 19.20 on a dual Opteron 1.8 Ghz see Qe3 as best move in 5:15

Black(1): [d]1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 b - - 0 45
              time surplus   0.00  time limit 10000:00 (10000:00) [easy move]
              depth   time  score   variation (1)
                8->   0.09   0.61   1. ... Qxc6 2. dxc6 Kg8 3. Ra7 Kf8
                                    4. Rd7 Be7 5. Kf2 Re8 (s=2)
                9     0.12   0.76   1. ... Qxc6 2. dxc6 Kg8 3. Ra7 Rc8
                                    4. Rb7 Rb8 5. Rd7 Bf8 6. Kf2
                9->   0.14   0.76   1. ... Qxc6 2. dxc6 Kg8 3. Ra7 Rc8
                                    4. Rb7 Rb8 5. Rd7 Bf8 6. Kf2 (s=2)
               10     0.18   0.71   1. ... Qxc6 2. dxc6 Kg8 3. Ra7 Rc8
                                    4. Rb7 Rb8 5. Rd7 Bf8 6. Bd5+ Kh7 7.
                                    Be4
               10->   0.22   0.71   1. ... Qxc6 2. dxc6 Kg8 3. Ra7 Rc8
                                    4. Rb7 Rb8 5. Rd7 Bf8 6. Bd5+ Kh7 7.
                                    Be4 (s=2)
               11     0.33     +1   1. ... Qxc6
               11     0.50   1.30   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rb7 h5 5. Rxb5 Ra8 6. Rb7 Ra1+ 7.
                                    Kf2 Ra2+ 8. Kg3
               11->   1.06   1.30   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rb7 h5 5. Rxb5 Ra8 6. Rb7 Ra1+ 7.
                                    Kf2 Ra2+ 8. Kg3 (s=2)
               12     1.37   1.21   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rb7 h5 5. Rxb5 Ra8 6. Bd5 Ra1+ 7.
                                    Kf2 Ra2+ 8. Kg3 Ra6 9. Bxc4 Rxc6
               12->   1.53   1.21   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rb7 h5 5. Rxb5 Ra8 6. Bd5 Ra1+ 7.
                                    Kf2 Ra2+ 8. Kg3 Ra6 9. Bxc4 Rxc6 (s=2)
               13     2.75   1.50   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rb7 h5 5. Rxb5 Ra8 6. Rd5 Bc7 7.
                                    b5 Rd8 8. Rc5
               13->   3.64   1.50   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rb7 h5 5. Rxb5 Ra8 6. Rd5 Bc7 7.
                                    b5 Rd8 8. Rc5 (s=2)
               14     6.26     +1   1. ... Qxc6
               14    10.00   2.07   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rd7 Bc7 5. Bd5 Bb6 6. Rf7+ Ke8 7.
                                    Rxg7 Rc7 8. Rg6 Ke7 9. Rxh6
               14->  11.98   2.07   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rd7 Bc7 5. Bd5 Bb6 6. Rf7+ Ke8 7.
                                    Rxg7 Rc7 8. Rg6 Ke7 9. Rxh6 (s=2)
               15    17.61   2.08   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Bd5 Rc7 5. Ra8+ Ke7 6. Rg8 h5 7.
                                    Rxg7+ Kd8 8. Rg8+ Ke7 9. Rh8 h4 10.
                                    Rxh4 Kd8
               15->  23.53   2.08   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Bd5 Rc7 5. Ra8+ Ke7 6. Rg8 h5 7.
                                    Rxg7+ Kd8 8. Rg8+ Ke7 9. Rh8 h4 10.
                                    Rxh4 Kd8 (s=2)
               16     1:11   2.31   1. ... Qxc6 2. dxc6 Kf8 3. Ra7 Rc8
                                    4. Rd7 Bc7 5. Bd5 Bb6 6. Rb7 Bd8 7.
                                    Rxb5 Bc7 8. Rb7 Rd8 9. Bxc4 <HT>
               16     5:15   1.71   1. ... Qe3 2. Qxd6 Re8 3. h4 h5 4.
                                    Bf3 Qc1+ 5. Kf2 Qd2+ 6. Be2 Qf4+ 7.
                                    Kg1 Qe3+ 8. Kh2 Qf4+ 9. Kh3 Qxf5+ 10.
                                    Kh2 Qf4+ 11. Kg1 Qe3+ 12. Kf1 Qf4+
                                    13. Ke1 <HT>
               16->   5:20   1.71   1. ... Qe3 2. Qxd6 Re8 3. h4 h5 4.
                                    Bf3 Qc1+ 5. Kf2 Qd2+ 6. Be2 Qf4+ 7.
                                    Kg1 Qe3+ 8. Kh2 Qf4+ 9. Kh3 Qxf5+ 10.
                                    Kh2 Qf4+ 11. Kg1 Qe3+ 12. Kf1 Qf4+
                                    13. Ke1 <HT>
               17     7:18   1.85   1. ... Qe3 2. Qxd6 Re8 3. h4 h5 4.
                                    Bf3 Qc1+ 5. Kf2 Qd2+ 6. Be2 Qf4+ 7.
                                    Kg1 Qe3+ 8. Kh2 Qf4+ 9. Kh3 Qxf5+ 10.
                                    Kh2 Qf4+ 11. Kg1 Qe3+ 12. Kf1 Qc1+
                                    13. Kf2 Qf4+ <HT>
               17->   8:18   1.85   1. ... Qe3 2. Qxd6 Re8 3. h4 h5 4.
                                    Bf3 Qc1+ 5. Kf2 Qd2+ 6. Be2 Qf4+ 7.
                                    Kg1 Qe3+ 8. Kh2 Qf4+ 9. Kh3 Qxf5+ 10.
                                    Kh2 Qf4+ 11. Kg1 Qe3+ 12. Kf1 Qc1+
                                    13. Kf2 Qf4+ <HT> (s=2)
               18    15:24   1.65   1. ... Qe3 2. Qxd6 Re8 3. h4 h5 4.
                                    Bf3 Qc1+ 5. Kf2 Qd2+ 6. Be2 Qf4+ 7.
                                    Kg1 Qe3+ 8. Kh2 Qf4+ 9. Kh3 Qxf5+ 10.
                                    Kh2 Qf4+ 11. Kg1 Qe3+ 12. Kf1 Qc1+
                                    13. Kf2 Qf4+ 14. Bf3 Qxh4+ 15. g3 Qg5
               18->  17:07   1.65   1. ... Qe3 2. Qxd6 Re8 3. h4 h5 4.
                                    Bf3 Qc1+ 5. Kf2 Qd2+ 6. Be2 Qf4+ 7.
                                    Kg1 Qe3+ 8. Kh2 Qf4+ 9. Kh3 Qxf5+ 10.
                                    Kh2 Qf4+ 11. Kg1 Qe3+ 12. Kf1 Qc1+
                                    13. Kf2 Qf4+ 14. Bf3 Qxh4+ 15. g3 Qg5
               19    22:30   1/31*  1. ... Qe3
Black(0): ?
              time=22:41  cpu=182%  mat=0  n=4177786976  fh=88%  nps=3.07M
              ext-> chk=341977877 cap=5971838 pp=18564977 1rep=33889488 mate=254
7739
              predicted=0  nodes=4177786976  evals=2481607278  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=6298  stop=1222  data=10/64  cpu=41:30  elap=22:41

Black(1): Qe3
              time used:  22:41



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

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