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Subject: Re: "A tricky one that has baffled many solvers." [BCM,May 1987,page 189]

Author: Dann Corbit

Date: 15:11:02 12/04/01

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On December 04, 2001 at 16:35:25, José Antônio Fabiano Mendes wrote:

>      Palevic vs Solovev === Correspondence Chess 1983
>      Source:British Chess Magazine,May 1987,page 189
>      [D]2k2r1r/pp4p1/1bp1p3/1q3n2/8/1QBN4/P4PPP/1R1R1B1K b
>      1...Qxb3 2.Rxb3 Rxh2+ 3.Kg1 Rh1+
>      "In the actual game Black,a piece down,settled for a draw by 1...Ng3+
>      2.Kg1 Bxf2+ 3.Nxf2 Qxf1+ 4.Rxf1 Ne2+ with a perpetual check." J.J.Walsh

Pepito takes 1/3 of a second to solve it.  Which solvers are actually baffled by
this problem?  Every program seems to solve it quickly.  Are you speaking of
human solvers?

Son correctas: Qxb3


    +----+----+----+----+----+----+----+----+
 8  |    |    | *R |    |    | *T |    | *T |
    +----+----+----+----+----+----+----+----+
 7  | *P | *P |    |    |    |    | *P |    |
    +----+----+----+----+----+----+----+----+
 6  |    | *A | *P |    | *P |    |    |    |
    +----+----+----+----+----+----+----+----+
 5  |    | *D |    |    |    | *C |    |    |
    +----+----+----+----+----+----+----+----+
 4  |    |    |    |    |    |    |    |    |
    +----+----+----+----+----+----+----+----+
 3  |    |  D |  A |  C |    |    |    |    |
    +----+----+----+----+----+----+----+----+
 2  |  P |    |    |    |    |  P |  P |  P |
    +----+----+----+----+----+----+----+----+
 1  |    |  T |    |  T |    |  A |    |  R |
    +----+----+----+----+----+----+----+----+
      a    b    c    d    e    f    g    h

 5     0    91     8600  Cf5-g3 Rh1-g1 Ab6xf2 Cd3xf2 Db5xf1 Td1xf1 Cg3-e2 Rg1-h1
Ce2-g3 Rh1-g1
 5     0    96    21011  Cf5-g3 Rh1-g1 Ab6xf2 Cd3xf2 Db5xf1 Td1xf1 Cg3-e2 Rg1-h1
Ce2-g3 Rh1-g1
 6     0   102    38247  Cf5-g3 Rh1-g1 Ab6xf2 Cd3xf2 Db5xf1 Td1xf1 Cg3-e2 Rg1-h1
Ce2-g3 Rh1-g1
 6    33   109    62467  Db5xb3 !!
 6   133   110    65815  Db5xb3 !!
 6   561   114    78234  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Rh1-g1 Da2-d5
 6   561   122    92856  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Rh1-g1 Da2-d5
 7   541   132   129823  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
 7   541   170   224068  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
 8   553   199   325561  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
Th8-d8
 8   553   329   642944  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
Th8-d8
 9   543   413   939626  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
Cf5-d4 Cd3-f4
 9   543   633  1514032  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
Cf5-d4 Cd3-f4
10   553   806  2172134  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
Dd5-d6 h3 Th8-d8
10   553  2944  8174184  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Af1-e2
Dd5-d6 h3 Th8-d8
11   558  3302  9511623  Db5xb3 Ac3xg7 Db3xa2 Ag7xh8 Tf8xh8 Tb1-b2 Da2-d5 Rh1-g1
Ab6-c7 h3 Cf5-d4 Af1-e2 Cd4xe2 Tb2xe2
Voy por el problema 1. Resueltos:   1



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