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Subject: Re: why is open file code such a big deal for programmers?

Author: Drexel,Michael

Date: 07:49:10 11/17/03

Go up one level in this thread


>Long term planning is irrelevant for this discussion because bad static
>evaluation was the main problem of Fritz.
>
>Kasparov had a protected passed pawn for no compensation and for some reason
>Fritz evaluated the position as equal.
>
>Uri

I fully agree, Uri.
Look at this:

[D] r2r2k1/5ppp/RPp1bnqb/2Pp1n2/1B1Pp3/1NN1P1PP/1KRQ1P2/5B2 b - - 0 1

White has a protected passed pawn at b6. Fritz 8 thinks it is slightly better.
Isn't that just crazy?

New game
r2r2k1/5ppp/RPp1bnqb/2Pp1n2/1B1Pp3/1NN1P1PP/1KRQ1P2/5B2 b - - 0 1

Analysis by Fritz 8:

34...Ne7 35.Rxa8 Rxa8 36.Kb1 Rb8 37.Ra2 Nc8 38.Na5
  =  (-0.18)   Depth: 7/16   00:00:00  63kN
34...Rxa6!
  =  (-0.22)   Depth: 7/21   00:00:00  87kN
34...Rxa6!
  ³  (-0.37)   Depth: 7/21   00:00:00  91kN
34...Rxa6 35.Bxa6 Ne7 36.g4 Rb8 37.Na5 Bd7 38.Bb7 Bg5
  =  (-0.15)   Depth: 8/20   00:00:00  128kN
34...Ne7!
  =  (-0.18)   Depth: 8/20   00:00:00  137kN
34...Ne7 35.Rxa8 Rxa8 36.Kb1 Rb8 37.Ra2 Nc8 38.Na5 Ne7
  ³  (-0.28)   Depth: 8/20   00:00:00  147kN
34...Ne7 35.Rxa8 Rxa8 36.Kb1 Rb8 37.Ra2 Nc8 38.Na5 Ne7 39.g4
  =  (-0.22)   Depth: 9/20   00:00:00  308kN
34...Rxa6!
  =  (-0.25)   Depth: 9/24   00:00:00  363kN
34...Rxa6 35.Bxa6 Ne7 36.g4 Rb8 37.Kb1 Bc8 38.Bf1 Ra8 39.Ra2
  ³  (-0.34)   Depth: 9/24   00:00:00  439kN
34...Rxa6 35.Bxa6 Ne8 36.Ne2 Rb8 37.Nf4 Bxf4 38.gxf4 Nh4 39.Qe2 Nf3 40.Qf1
  =  (-0.12)   Depth: 10/30   00:00:01  1047kN
34...Ne7!
  =  (-0.15)   Depth: 10/30   00:00:01  1165kN
34...Rab8!
  =  (-0.18)   Depth: 10/30   00:00:02  1537kN
34...Rab8 35.Kb1 Ne7 36.Rca2 Kf8 37.Ra7
  =  (0.00)   Depth: 11/31   00:00:05  3033kN
34...Ne7!
  =  (-0.03)   Depth: 11/31   00:00:05  3452kN
34...Rxa6!
  =  (-0.06)   Depth: 11/31   00:00:06  3853kN
34...Rxa6!
  =  (-0.22)   Depth: 11/31   00:00:07  4568kN
34...Rxa6 35.Bxa6 Ne7 36.b7 Bxh3 37.Ba5 Re8 38.Bc7 Nd7 39.Kb1 Nb8 40.Ra2 Nxa6
41.Rxa6
  =  (-0.25)   Depth: 11/31   00:00:07  4811kN
34...Rxa6 35.Bxa6 Ne7 36.g4 Rb8 37.Na5 Bc8 38.Bxc8 Rxc8 39.Nb7 Rb8 40.Nd6 Ne8
  =  (-0.15)   Depth: 12/34   00:00:11  7343kN
34...Rxa6 35.Bxa6 Ne7 36.Bf1 Rb8 37.Kb1 Qh5 38.g4 Qg6 39.Ra2 Ne8 40.Ra7 Nc8
41.Ra4
  =  (-0.15)   Depth: 13/34   00:00:20  14276kN
34...Rxa6 35.Bxa6 Ne7 36.Bf1 Rb8 37.Kb1 Qf5 38.Ra2 Qf3 39.Qd1 Qh1 40.Ra7 Nc8
41.Rc7 Qh2
  =  (-0.09)   Depth: 14/35   00:00:43  32228kN
34...Rxa6 35.Bxa6 Ne7 36.Bf1 Rb8 37.Kc1 Nd7 38.Ra2 Qf6 39.Qe2 Nf5 40.Kb2
  =  (-0.09)   Depth: 15/38   00:01:32  72131kN



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