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Subject: Re: Interesting difference between Fritz 7.0.0.2 and 7.0.0.6

Author: Uri Blass

Date: 12:45:12 01/31/02

Go up one level in this thread


On January 31, 2002 at 12:49:16, Roy Eassa wrote:

>On January 30, 2002 at 01:17:52, Jouni Uski wrote:
>
>>[D]5bk1/p3p1p1/p3P1P1/p7/p7/8/P7/5K2 w - - (mate in 17)
>>
>>Fritz 7.0.0.2 no solution ever 7.0.0.6 instantly Ke2
>
>
>First, could you please post the moves of the mate in 17?
>
>My copy of Fritz 7.0.0.6 does not "get" this position!  Perhaps it's because I
>have the January 7 one rather than the January 11 one?

Do you use selectivity=0 like Jouni
this position is not hard even for humans.
the idea is simply to capture all the black pawns at the a file

Here is analysis of some programs on p200

New position
5bk1/p3p1p1/p3P1P1/p7/p7/8/P7/5K2 w - - 0 1

Analysis by Shredder 5.32:

1.Ke2
  -+  (-5.96)   Depth: 1/2   00:00:00
1.Ke2 a3
  -+  (-5.77)   Depth: 2/4   00:00:00
1.a3 Kh8
  -+  (-5.68)   Depth: 2/4   00:00:00
1.a3 Kh8
  -+  (-5.68)   Depth: 2/4   00:00:00
1.a3 Kh8 2.Ke2
  -+  (-5.57)   Depth: 3/6   00:00:00
1.a3 Kh8 2.Ke2 Kg8
  -+  (-5.74)   Depth: 4/8   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 5/10   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 5/10   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 6/12   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 7/14   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 8/16   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 9/18   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 10/20   00:00:00
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 11/22   00:00:00  1kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 12/24   00:00:00  1kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 13/25   00:00:00  1kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 14/26   00:00:00  2kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 15/27   00:00:01  2kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 16/28   00:00:01  3kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 17/29   00:00:01  3kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 18/30   00:00:01  4kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 19/31   00:00:01  5kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 20/32   00:00:01  5kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 21/33   00:00:01  6kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 22/34   00:00:01  7kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 23/35   00:00:01  7kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 24/36   00:00:01  8kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 25/37   00:00:01  9kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 26/38   00:00:02  10kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 27/39   00:00:02  11kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 28/40   00:00:02  12kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 29/41   00:00:02  13kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 30/42   00:00:02  14kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 31/43   00:00:02  16kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 32/44   00:00:02  17kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 33/45   00:00:02  19kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 34/46   00:00:02  21kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 35/47   00:00:02  23kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 36/48   00:00:03  25kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 37/49   00:00:03  29kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 38/50   00:00:03  33kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 39/51   00:00:03  37kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 40/52   00:00:03  42kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 41/53   00:00:03  46kN
1.a3 Kh8 2.Ke2 Kg8 3.Kf1 Kh8
  =  (0.00)   Depth: 42/54   00:00:03  52kN
1.Ke2 Kh8 2.Kd2 Kg8 3.Kc2 Kh8 4.Kb2 Kg8 5.Ka3 Kh8 6.Kxa4 Kg8 7.Kxa5 Kh8 8.Kxa6
Kg8 9.a4 Kh8 10.Kb7 Kg8 11.a5 Kh8 12.Kxa7 Kg8 13.Kb6 Kh8 14.Kc6 Kg8 15.a6
  +-  (6.84)   Depth: 42/54   00:00:04  65kN
1.Ke2 Kh8 2.Kd2 Kg8 3.Kc2 Kh8 4.Kb2 a3+ 5.Kxa3 a4 6.Kxa4 Kg8 7.Ka3 Kh8 8.Kb4 Kg8
9.Kc5 Kh8 10.Kc6 a5 11.Kc5 a4 12.Kb5 a3 13.Kb4 Kg8 14.Kxa3 Kh8 15.Ka4
  +-  (#38)   Depth: 42/54   00:00:04  70kN

New position
5bk1/p3p1p1/p3P1P1/p7/p7/8/P7/5K2 w - - 0 1

Analysis by Junior 7:

1.a3 Kh8
  -+  (-3.62)   Depth: 3   00:00:00
1.Ke2 Kh8
  -+  (-3.52)   Depth: 3   00:00:00
1.Ke2 Kh8 2.Kd3
  -+  (-3.51)   Depth: 6   00:00:00
1.Ke2 a3 2.Kd3 a4 3.Kc4
  -+  (-3.50)   Depth: 9   00:00:00
1.a3!
  -+  (-3.21)   Depth: 9   00:00:00
1.a3! Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 9   00:00:00
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 12   00:00:00
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 15   00:00:00  1kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 18   00:00:01  2kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 21   00:00:01  4kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 24   00:00:01  7kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 27   00:00:01  12kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 30   00:00:01  20kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 33   00:00:02  26kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 36   00:00:02  32kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 39   00:00:02  41kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 42   00:00:03  52kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 45   00:00:03  67kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 48   00:00:04  85kN
1.a3 Kh8 2.Ke2 Kg8
  =  (0.00)   Depth: 51   00:00:04  108kN
1.Ke2!
  ²  (0.30)   Depth: 51   00:00:05  138kN
1.Ke2! a3 2.Kd3 a4 3.Kc4 Kh8 4.Kb4 a5+ 5.Kxa3 Kg8 6.Kxa4 a6 7.Kxa5 Kh8 8.Kxa6
Kg8 9.a4 Kh8 10.a5
  +-  (#16)   Depth: 51   00:00:07  206kN
1.Ke2! a3 2.Kd3 a4 3.Kc4 Kh8 4.Kb4 a5+ 5.Kxa3 Kg8 6.Kxa4 a6 7.Kxa5 Kh8 8.Kxa6
Kg8 9.a4 Kh8 10.a5
  +-  (#16)   Depth: 51   00:00:07  208kN

Uri



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