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Subject: Re: Fritz problems in rook/pawn ending

Author: Kurt Utzinger

Date: 03:51:19 12/14/02

Go up one level in this thread

A most interesting position that quite a lot of engines are unable to assess
correctly. For me however, the more important question is if this is a good
example because it demonstrates an exception of the rule in this kind of
position that Black should not exchange pieces. And for this reason it may be
not worth for a programmer to change anything.
Kurt

Neue Partie
[D]8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1

Analysis by Fritz 8: (P4 1.8/32 MB hash)

1.Tf2 Tg1 2.a4 g5 3.fxg5 hxg5 4.Th2 g4+ 5.Kf2 Tc1 6.Ke3 Tg1 7.Kf2
  ²  (0.31)   Tiefe: 7/17   00:00:00  25kN
  =  (0.00)   Tiefe: 16/36   00:02:35  90884kN, tb=2
1.Kg2!
  =  (0.03)   Tiefe: 16/40   00:03:21  119101kN, tb=2
  =  (0.03)   Tiefe: 16/40   00:03:21  119101kN, tb=2

(Utzinger, MyTown 14.12.2002)
*******************************************************************************************
Neue Partie
8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1

Analysis by Chess Tiger 14.0:

1.Tf2 Txf2+ 2.Kxf2 Ke4 3.b4 b6 4.a3 a5 5.bxa5 bxa5 6.Ke2 c5 7.Kf2 c4 8.c3 c5
9.Ke2 a4 10.Kd2
  =  (-0.12)   Tiefe: 10   00:00:00  170kN
  =  (-0.08)   Tiefe: 16   00:03:03  68668kN

(Utzinger, MyTown 14.12.2002)
********************************************************************************************
Neue Partie
8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1

Analysis by Hiarcs 8:

1.Kg2 Td1 2.Te5+ Kg4
  ²  (0.26)   Tiefe: 1   00:00:00
  =  (0.16)   Tiefe: 2/5   00:00:00
1.Tf2 Txf2+ 2.Kxf2 Ke4 3.c3 c5 4.b3 b5 5.b4 h5 6.Ke2 Kd5 7.Kf3
  =  (0.19)   Tiefe: 2/9   00:00:00
  =  (0.05)   Tiefe: 11/26   00:00:04  935kN
1.Kg2 Td1 2.Kh3 Th1+ 3.Kg2 Td1 4.Tf2
  =  (0.09)   Tiefe: 11/26   00:00:08  1664kN
  =  (0.07)   Tiefe: 15/34   00:03:41  46562kN

(Utzinger, MyTown 14.12.2002)
********************************************************************************************
Neue Partie
8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1

Analysis by Junior 7:

1.Kg2 Td1 2.Te7
  =  (0.05)   Tiefe: 3   00:00:00
  =  (0.05)   Tiefe: 3   00:00:00
1.Ke3 Kg4 2.Tg2 Tf3+ 3.Kd4 Txg3 4.Txg3+ Kxg3
  =  (0.18)   Tiefe: 3   00:00:00
  ³  (-0.59)   Tiefe: 6   00:00:00  5kN
1.Kg2 Td1 2.Kf3
  =  (0.02)   Tiefe: 6   00:00:00  6kN
  =  (0.00)   Tiefe: 23   00:05:15  297987kN, tb=15

(Utzinger, MyTown 14.12.2002)
********************************************************************************************
Neue Partie
8/1pp5/p1p3pp/5k2/5P1P/5KP1/PPP1R3/5r2 w - - 0 1

Analysis by Nimzo 7.32:

1.Tf2
  ³  (-0.26)   Tiefe: 1/11   00:00:00
1.Ke3 Kg4 2.Tf2
  =  (0.08)   Tiefe: 1/11   00:00:00
  =  (-0.02)   Tiefe: 3/14   00:00:00
1.Kg2 Ta1 2.a3 Tb1 3.b3 Kg4 4.Te7 Tc1
  =  (0.07)   Tiefe: 3/14   00:00:00
  =  (0.08)   Tiefe: 8/22   00:00:00
1.Tf2 Txf2+ 2.Kxf2 Ke4 3.b3 h5 4.a3 a5 5.c4 Kf5
  =  (0.09)   Tiefe: 8/22   00:00:00
  =  (-0.20)   Tiefe: 9/23   00:00:00
1.Kg2 Ta1 2.a3 Ta2 3.c3 Ta1 4.Te5+ Kg4 5.Te6 Kf5 6.Te2
  =  (-0.19)   Tiefe: 9/23   00:00:00
  =  (0.04)   Tiefe: 15/32   00:01:05  54994kN

(Utzinger, MyTown 14.12.2002)
********************************************************************************************

• Re: Fritz problems in rook/pawn ending Sune Larsson 12:45:01 12/14/02
• Re: Fritz problems in rook/pawn ending Sune Larsson 07:42:05 12/14/02
  • Re: Fritz problems in rook/pawn ending Kurt Utzinger 09:51:26 12/14/02
    • Re: Fritz problems in rook/pawn ending Sune Larsson 10:08:25 12/14/02

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