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Subject: Re: Black Wins this one..!

Author: Miguel A. Ballicora

Date: 07:55:23 04/02/02

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On April 02, 2002 at 10:24:06, Art Basham wrote:

>Just found this one today...
>
>Black plays...Qh3..! and mates in about 10 moves..
>with only a rook and a knight left for the attack..!
>
>[D]1rq5/p3kp2/2Bp1p2/1P2p1r1/QP3n2/2P5/5PPP/R4RK1 b - -
>
>From the Aemis Test Suite...(100 diagrams)

Gaviota 0.30 takes ~5 minutes to find Qh3 and announce mate in 11
in ~10 minutes on a pIII 800 mhz.
This is a very nice test position.

analyze
       344   1:      0.0    -1.74  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8
      1078   2:      0.0    -1.82  Nf4-e2   Kg1-h1   Ne2xc3   Qa4-b3
                                   Nc3xb5
      5755   3:      0.1    -1.98  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   b5-b6
     10698   4       0.1    -1.99  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   Rf1-c1   Nc3-e2
     12159   4:      0.2    -1.99  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   Rf1-c1   Nc3-e2
     36533   5       0.5    -2.19  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   Rf1-c1   Nc3-e2   Rc1-d1
     78948   5:      1.0    -2.19  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   Rf1-c1   Nc3-e2   Rc1-d1
    153353   6       1.9    -1.98  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   b5-b6    Kf8-g8   b6-b7
                                   Qc8-c7   Rf1-c1
    221269   6:      2.6    -1.98  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   b5-b6    Kf8-g8   b6-b7
                                   Qc8-c7   Rf1-c1
    596843   7       6.9    -2.14  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   Rf1-c1   Nc3-e2   Bc6-d5
                                   Qc8-e8   Bd5xf7   Qe8xb5
   1855438   7:     23.0    -2.14  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   Rf1-c1   Nc3-e2   Bc6-d5
                                   Qc8-e8   Bd5xf7   Qe8xb5
   3931437   8      47.0    -2.34  Nf4-e2   Kg1-h1   Ne2xc3   Qa4xa7
                                   Ke7-f8   Rf1-c1   Nc3-e2   Bc6-d5
                                   Qc8-e8   Bd5xf7   Rg5-g7   Rc1-c7
                                   Qe8xb5
  11509559   8     141.1      :-)  a7-a6
  11865899   8     145.1    -1.65  a7-a6    Kg1-h1   a6xb5    Qa4-a7
                                   Ke7-f8   Rf1-d1   Qc8-d8   g2-g3
                                   Nf4-e2
  24839323   8     306.0      :-)  Qc8-h3
  32988741   8     405.2      :-)  Qc8-h3
  35089425   8     431.0    +7.29  Qc8-h3   Qa4xa7   Ke7-f8   Qa7xb8
                                   Kf8-g7   Qb8-h8   Kg7xh8   Ra1-a8
                                   Kh8-g7   Ra8-g8   Kg7xg8   Kg1-h1
                                   Qh3xc3
  35108667   8:    431.2    +7.29  Qc8-h3   Qa4xa7   Ke7-f8   Qa7xb8
                                   Kf8-g7   Qb8-h8   Kg7xh8   Ra1-a8
                                   Kh8-g7   Ra8-g8   Kg7xg8   Kg1-h1
                                   Qh3xc3
  38707955   9     475.2      :-)  Qc8-h3
  38771349   9     475.9      :-(  Qc8-h3
  46884328   9     572.4      :-(
  49437455   9     603.6      :-)  Qc8-h3
  52465852   9     641.7      :-)  Qc8-h3
  53116316   9     650.4  +Mat_11  Qc8-h3   Qa4xa7   Ke7-f8   Qa7xb8
                                   Kf8-g7   Qb8-h8   Kg7xh8   Rf1-d1
                                   Rg5xg2   Kg1-f1   Rg2-g3   Kf1-e1
                                   Rg3-g1   Ke1-d2   Qh3-d3   Kd2-c1
                                   Qd3xc3   Kc1-b1   Rg1xd1   Kb1-a2
                                   Rd1xa1
  53132073   9:    650.6  +Mat_11  Qc8-h3   Qa4xa7   Ke7-f8   Qa7xb8
                                   Kf8-g7   Qb8-h8   Kg7xh8   Rf1-d1
                                   Rg5xg2   Kg1-f1   Rg2-g3   Kf1-e1
                                   Rg3-g1   Ke1-d2   Qh3-d3   Kd2-c1
                                   Qd3xc3   Kc1-b1   Rg1xd1   Kb1-a2
                                   Rd1xa1
  57760129  10     706.2  +Mat_11  Qc8-h3   Qa4xa7   Ke7-f8   Qa7xb8
                                   Kf8-g7   Qb8-h8   Kg7xh8   Rf1-d1
                                   Rg5xg2   Kg1-f1   Rg2-g3   Kf1-e1
                                   Rg3-g1   Ke1-d2   Qh3-d3   Kd2-c1
                                   Qd3xc3   Kc1-b1   Rg1xd1   Kb1-a2
                                   Rd1xa1
  62165735  10:    758.0  +Mat_11  Qc8-h3   Qa4xa7   Ke7-f8   Qa7xb8
                                   Kf8-g7   Qb8-h8   Kg7xh8   Rf1-d1
                                   Rg5xg2   Kg1-f1   Rg2-g3   Kf1-e1
                                   Rg3-g1   Ke1-d2   Qh3-d3   Kd2-c1
                                   Qd3xc3   Kc1-b1   Rg1xd1   Kb1-a2
                                   Rd1xa1



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