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Subject: ECM.1617

Author: Michel Langeveld

Date: 22:49:35 09/23/01

another solution found?

======================================================================
! ECM.1617 !
======================================================================

       +---+---+---+---+---+---+---+---+
    8  | *R| *N|   |   |   | *R| *K|   |
       +---+---+---+---+---+---+---+---+
    7  | *P| *P|   | *B| *P| *P| *B| *P|
       +---+---+---+---+---+---+---+---+
    6  |   | *Q| *P|   |   |   | *P|   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   |   | P |   | N |   |
       +---+---+---+---+---+---+---+---+
    4  | P | P |   | P | B |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   | P |   | B |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  |   |   |   |   | Q |   | P | P |
       +---+---+---+---+---+---+---+---+
    1  | R |   |   |   |   | R | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

solution 1. Nxh7
              time surplus   0.00  time limit 20:00 (20:00)
         nss  depth   time  score   variation (1)
                6->   0.62   1.04   1. Qa2 e6 2. Qf2 f5 3. exf6 Rxf6
                7     0.76   0.87   1. Qa2 e6 2. Qf2 Qc7 3. Bf4 h6 4. Nf3
                7     1.74   0.88   1. Qf2 a5 2. Nxf7 axb4 3. cxb4 Qxb4
                                    4. Bg5
                7     2.22   1.00   1. Rf2 h6 2. Nf3 a5 3. Qd2 axb4 4.
                                    cxb4
                7->   3.19   1.00   1. Rf2 h6 2. Nf3 a5 3. Qd2 axb4 4.
                                    cxb4
                8     3.64   0.84   1. Rf2 h6 2. Nf3 a5 3. Qd2 axb4 4.
                                    cxb4 e6
                8     6.26   0.93   1. Qf2 Qd8 2. b5 Qe8 3. bxc6 Nxc6 4.
                                    a5 e6
                8    10.04   1.04   1. e6 Bxe6 2. Nxe6 fxe6 3. Qg4 Qd8
                                    4. Qxe6+ Kh8 5. Bf4
                8->  10.63   1.04   1. e6 Bxe6 2. Nxe6 fxe6 3. Qg4 Qd8
                                    4. Qxe6+ Kh8 5. Bf4
                9    11.44   1.24   1. e6 Bxe6 2. Nxe6 fxe6 3. Qg4 Rxf1+
                                    4. Rxf1 Kh8 5. Qxe6 Qc7
                9->  14.23   1.24   1. e6 Bxe6 2. Nxe6 fxe6 3. Qg4 Rxf1+
                                    4. Rxf1 Kh8 5. Qxe6 Qc7
               10    16.46   1.30   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Kh8
                                    4. Rxf8+ Bxf8 5. Qxe6 Qd8 6. Rf1 Nd7
               10->  32.85   1.30   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Kh8
                                    4. Rxf8+ Bxf8 5. Qxe6 Qd8 6. Rf1 Nd7
               11    36.91   1.41   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Qc7
                                    4. Qxe6+ Kh8 5. Rxf8+ Bxf8 6. Rf1 Nd7
                                    7. Rf7 Rd8
               11->  57.03   1.41   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Qc7
                                    4. Qxe6+ Kh8 5. Rxf8+ Bxf8 6. Rf1 Nd7
                                    7. Rf7 Rd8
               12     1:08   1.32   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Qd8
                                    4. Qxe6+ Kh8 5. Rxf8+ Bxf8 6. Rf1 a5
                                    7. Qf7 Nd7
               12->   3:44   1.32   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Qd8
                                    4. Qxe6+ Kh8 5. Rxf8+ Bxf8 6. Rf1 a5
                                    7. Qf7 Nd7
               13     4:16   1.54   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Qd8
                                    4. Qxe6+ Kh8 5. Rxf8+ Bxf8 6. Rf1 Nd7
                                    7. Rf7 Nf6 8. Qe5
               13->   6:45   1.54   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Qd8
                                    4. Qxe6+ Kh8 5. Rxf8+ Bxf8 6. Rf1 Nd7
                                    7. Rf7 Nf6 8. Qe5
               14     8:34   1.50   1. e6 Bxe6 2. Nxe6 fxe6 3. Qc4 Qd8
                                    4. Qxe6+ Kh8 5. Rxf8+ Qxf8 6. Rf1 Bf6
                                    7. Bg5 Kg7 8. Rf2 Qf7
              time=20:01  cpu=99%  mat=0  n=517825835  fh=90%  nps=431047
              ext-> chk=14494777 pp=578838 1rep=1498995 mate=120778
              predicted=0  nodes=517825835  evals=117491948
              endgame tablebase-> probes done=0  successful=0
              hashing-> trans/ref=24%  pawn=9%  used=99%
----------------------> solution incorrect (162/179).

• Re: ECM.1617 - Nxh7 clearly better Vincent Diepeveen 15:40:34 09/24/01
  • Re: ECM.1617 - Nxh7 clearly better Uri Blass 01:18:47 09/25/01
    • Re: ECM.1617 - Nxh7 clearly better Uri Blass 03:29:19 09/25/01
  • Re: ECM.1617 - Nxh7 clearly better Michel Langeveld 22:25:06 09/24/01
    • Re: ECM.1617 - Nxh7 clearly better Dann Corbit 22:38:19 09/24/01
• Re: ECM.1617 Janos Keinrath 06:39:05 09/24/01
  • Re: ECM.1617 Michel Langeveld 10:45:28 09/24/01
• Re: ECM.1617 Mogens Larsen 04:28:39 09/24/01
• Re: ECM.1617 Ed Schröder 03:02:20 09/24/01
  • Re: ECM.1617 Uri Blass 03:26:00 09/24/01
    • Re: ECM.1617 Michel Langeveld 10:03:34 09/24/01
• Re: ECM.1617 Slater Wold 23:51:49 09/23/01
  • Yes. Nxh7 is the best Michel Langeveld 09:51:03 09/24/01

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