Use example


 Let's see a practical use of the tool:
 The position shown is a typical case of blocking, where the traditional chess software
 have difficulty:

   Ree,Hans - Hort,Vlastimil
   Wijk aan Zee, 1986 1/2-1/2

 


Black draw with..Rxh4!!  
60.Kxh4 Bd4! 61.Kg3 Ke7 62.Kf3 Ba1 The queen has no square to go to. ½-½

after 59...Bf2+?! the black lost: 60.Kxf2 Rxh4  61.Kg3 Rh7 62.Kf3± followed by the king's march to c6.
Another possible method is 61.Qg7!? Rxf4+ 62.Kg3 Rg4+ 63.Kf3± /\ Qf6; Qc7

The programs classics like Fritz can not find the solution and propose the loser 59. .. Bf2.
Here we have the log analysis MCockroach2:

  Montecarlo Cockroach v.2.0 x64
  Analysis of the Wed May 01 04:16:50 2013

  You have planned this parameters: 

  FEN : 4knQ1/7r/3p2p1/2bP1pP1/5P1N/6K1/8/8 b - - 0 59

  CORE THREADS: 2
  Log: y      Analisys: f
  Depth: 7    Multipv:3
  Delta=100
  n.Moves LOW= 7
  Depth LOW=7  Multipv LOW= 3
  Delta LOW= 150

    moves black:

      59. ..  Rh7:h4  n. games 43  n.win=0 n.draw=38 n.lose=5  p.max=44%
      59. ..  Bc5 f2  n. games 55  n.win=1 n.draw=22 n.lose=32  p.max=21%
      59. ..  Bc5 g1  n. games 43  n.win=0 n.draw=1 n.lose=42  p.max=1%
      59. ..  Rh7 a7  n. games 49  n.win=0 n.draw=1 n.lose=48  p.max=1%
      59. ..  Rh7 b7  n. games 50  n.win=0 n.draw=1 n.lose=49  p.max=1%
      59. ..  Ke8 d8  n. games 38  n.win=0 n.draw=0 n.lose=38  p.max=0%
      59. ..  Bc5 a3  n. games 49  n.win=0 n.draw=0 n.lose=49  p.max=0%
      59. ..  Bc5 e3  n. games 48  n.win=0 n.draw=0 n.lose=48  p.max=0%
      59. ..  Bc5 b4  n. games 49  n.win=0 n.draw=0 n.lose=49  p.max=0%
      59. ..  Bc5 d4  n. games 48  n.win=0 n.draw=0 n.lose=48  p.max=0%
      59. ..  Bc5 b6  n. games 52  n.win=0 n.draw=0 n.lose=52  p.max=0%
      59. ..  Bc5 a7  n. games 43  n.win=0 n.draw=0 n.lose=43  p.max=0%
      59. ..  Rh7 h5  n. games 48  n.win=0 n.draw=0 n.lose=48  p.max=0%
      59. ..  Rh7 h6  n. games 41  n.win=0 n.draw=0 n.lose=41  p.max=0%
      59. ..  Rh7 c7  n. games 43  n.win=0 n.draw=0 n.lose=43  p.max=0%
      59. ..  Rh7 d7  n. games 48  n.win=0 n.draw=0 n.lose=48  p.max=0%
      59. ..  Rh7 e7  n. games 55  n.win=0 n.draw=0 n.lose=55  p.max=0%
      59. ..  Rh7 f7  n. games 42  n.win=0 n.draw=0 n.lose=42  p.max=0%
      59. ..  Rh7 g7  n. games 42  n.win=0 n.draw=0 n.lose=42  p.max=0%
      59. ..  Rh7 h8  n. games 43  n.win=0 n.draw=0 n.lose=43  p.max=0%
      59. ..  Ke8 d7  n. games 42  n.win=0 n.draw=0 n.lose=42  p.max=0%
      59. ..  Ke8 e7  n. games 41  n.win=0 n.draw=0 n.lose=41  p.max=0%

  n.total games=1012  time: 0h 5' 11,532''

1 comment:

Bernhard Biberle said...
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