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Subject: Re: Chessmaster endgame blunder

Author: Mihaly Szalai

Date: 08:16:49 07/15/04

Go up one level in this thread


>>>I found no engine with egtb probing playing 50...Nxd4.
>>
>>Well, there you go -- Chessmaster 9000 does not probe the egtbs in the search.
>>
>>jm
>
>Follow Up:
>
>Try running your other programs without egtbs and let me know what they say.
>
>jm

I know that The King doesn't probe egtb, that's why I mentioned it.

This position is not difficult for the human eye: one pawn diverts the
king, the second wins the knight and the third wins the game. (In simple
terms..;)

So without egtb Junior also fails and Shredder has a hard time too (see
Joachim's
post) but Fritz, Hiarcs and Nimzo has no problems.

Szalai,M - Chessmaster, Blitz:15'+5"
8/3k4/p7/1P6/3B4/1nP5/6KP/8 b - - 0 1

Analysis by Junior 8:

50...axb5 51.h4 Kc6
  ±  (0.92)   Depth: 3   00:00:00
50...axb5!
  ?  (0.62)   Depth: 6   00:00:00  1kN
50...axb5 51.Bg1 Na5 52.h4 Nc4 53.Bd4
  ?  (0.49)   Depth: 9   00:00:00  21kN
50...Nxd4 51.bxa6 Nc6 52.Kf3 Kc7 53.Ke4
  ?  (0.37)   Depth: 9   00:00:00  33kN
50...Nxd4 51.bxa6 Ne6 52.a7 Nc7 53.h4 Kc8 54.Kg3 Kb7
  ?  (0.61)   Depth: 12   00:00:00  99kN
50...Nxd4 51.bxa6 Nc6 52.h4 Kc7 53.h5 Nd8 54.Kf3 Kb6 55.h6 Kxa6 56.Kg4
  ?  (0.39)   Depth: 15   00:00:00  298kN
50...Nxd4 51.bxa6 Nc6 52.h4 Kc7 53.h5 Nd8 54.h6 Nf7 55.h7 Kb6 56.c4 Kxa6 57.Kf3
  ?  (0.39)   Depth: 18   00:00:02  1141kN
50...Nxd4 51.bxa6 Nc6 52.h4 Kc7 53.h5 Ne5 54.c4 Kb6 55.h6 Ng6 56.Kh1 Ka7 57.c5
Kxa6 58.h7
  ?  (0.44)   Depth: 21   00:00:06  4574kN
50...Nxd4 51.bxa6 Nc6 52.h4 Kc7 53.h5 Ne5 54.h6 Kb6 55.a7 Kxa7 56.Kg3 Nf7 57.h7
Ka6
  ?  (0.44)   Depth: 23   00:00:18  13860kN
50...Nxd4 51.bxa6 Nc6 52.h4 Kc7 53.h5 Kb6 54.a7 Kxa7 55.h6 Ne5 56.h7 Nf7 57.Kf2
Ka6 58.Ke3
  ?  (0.51)   Depth: 25   00:02:50  163521kN
50...Nxd4 51.bxa6 Nc6 52.h4 Ke6 53.c4 Ke5 54.Kf3 Kf5 55.c5 Ke5 56.Kg3
  ?  (0.51)   Depth: 26   00:06:10  356233kN

(Szalai, Celeron 1.7 GHz 15.07.2004)



Szalai,M - Chessmaster, Blitz:15'+5"
8/3k4/p7/1P6/3B4/1nP5/6KP/8 b - - 0 1

Analysis by Fritz 8:

50...axb5 51.Kf3 Ke6 52.h4 Kd5 53.Bf6 Kc4
  ±  (1.07)   Depth: 7/14   00:00:00  10kN
50...axb5 51.Kf3 Ke6 52.h4 Kf5 53.Be3 Kg6 54.Kg4
  ±  (1.19)   Depth: 8/17   00:00:00  23kN
50...axb5!
  ±  (0.91)   Depth: 9/18   00:00:00  62kN
50...axb5--
  ±  (1.19)   Depth: 10/20   00:00:00  235kN
50...axb5 51.Be3 Na5 52.h4
  ±  (1.19)   Depth: 10/20   00:00:00  237kN
50...axb5 51.Be3 Na5 52.h4 Nc4 53.Kf2 Ke6 54.h5 Kf7 55.Bd4 Kg8
  ±  (0.97)   Depth: 11/24   00:00:00  377kN
50...axb5 51.Be3 Na5 52.h4 Nc4 53.Kf3 Ke6 54.h5 Kf5 55.Ke2 Nxe3 56.Kxe3 Kg5
  ±  (1.07)   Depth: 12/19   00:00:01  528kN
50...axb5 51.Be3 Na5 52.h4 Nc4 53.Kf3 Ke6 54.h5 Kf6 55.Bf4 Kg7 56.Ke4 Kh7
  ±  (0.91)   Depth: 13/34   00:00:02  1218kN
50...axb5 51.Be3 Ke6 52.Kf3 Kf5 53.h4 Na5 54.h5 Nc4 55.Bf4 Kf6 56.Ke4 Kg7 57.Kd4
Kh7
  ±  (0.97)   Depth: 14/26   00:00:04  2301kN
50...axb5 51.Be3 Ke6 52.Kf3 Na5 53.Kf4 Kf7 54.Ke4 Nc4 55.Bd4 Ke6 56.h4 Nd6+
57.Kf3 Nf5 58.h5 Kd5
  ±  (1.10)   Depth: 15/28   00:00:06  3614kN
50...axb5 51.Be3 Ke6 52.h4 Na5 53.h5 Kf5 54.Kg3 Nc6 55.Bc1 b4 56.c4 b3 57.c5 Nd4
58.Bb2
  ±  (1.03)   Depth: 16/30   00:00:10  6110kN
50...axb5 51.Be3 Ke6 52.h4 Na5 53.h5 Kf5 54.Kf2 Nc4 55.Bc1 Kf6 56.Bf4 Kg7 57.Kf3
Kh8 58.Ke4 Kg8 59.Be3
  ±  (1.03)   Depth: 17/34   00:00:24  14533kN
50...axb5 51.Be3 Ke6 52.h4 Na5 53.h5 Kf5 54.Kf3 Nc6 55.Ke2 Ne5 56.Bc1 Ng4 57.Kd3
Nf6 58.h6 Kg6
  ±  (1.03)   Depth: 18/43   00:00:39  24335kN
50...axb5 51.Be3 Ke6 52.h4 Na5 53.h5 Kf5 54.Kf3 Nc6 55.Ke2 Ne5 56.Bc1 Ng4 57.Kd3
Nf6 58.h6 Kg6
  ±  (1.07)   Depth: 19/36   00:01:06  42443kN
50...axb5 51.Be3 Ke6 52.h4 Na5 53.h5 Kf5 54.Kf3 Nc6 55.Ke2 Ne5 56.Bc1 Nd7 57.Kd3
Nc5+ 58.Kc2 Nd7
  ±  (1.10)   Depth: 20/40   00:02:04  79803kN

(Szalai, Celeron 1.7 GHz 15.07.2004)

Szalai,M - Chessmaster, Blitz:15'+5"
8/3k4/p7/1P6/3B4/1nP5/6KP/8 b - - 0 1

Analysis by Hiarcs 9:

50...axb5
  ±  (1.20)   Depth: 1/2   00:00:00
50...Nxd4
  ±  (0.71)   Depth: 1/3   00:00:00
50...Nxd4 51.bxa6
  ±  (0.71)   Depth: 1/3   00:00:00
50...Nxd4 51.bxa6
  ±  (0.71)   Depth: 2/3   00:00:00
50...Nxd4 51.bxa6
  ±  (0.96)   Depth: 3/10   00:00:00
50...Nxd4 51.bxa6 Ne6 52.h4
  ±  (1.07)   Depth: 3/10   00:00:00
50...Nxd4 51.bxa6 Nb5 52.h4 Na7
  ±  (1.28)   Depth: 4/10   00:00:00
50...Nxd4 51.bxa6 Nb5 52.h4 Na7
  +-  (3.28)   Depth: 5/14   00:00:00  2kN
50...Nxd4 51.cxd4 a5 52.h4 a4
  +-  (3.28)   Depth: 5/14   00:00:00  2kN
50...axb5 51.Be3
  +-  (3.23)   Depth: 5/14   00:00:00  3kN
50...axb5 51.Be3 Na5 52.Kf3 Nc4
  ±  (1.34)   Depth: 5/14   00:00:00  5kN
50...axb5 51.Be3 Na5 52.Kf3 Nc4 53.h4
  +-  (1.48)   Depth: 6/14   00:00:00  10kN
50...axb5 51.Bg7 Ke6 52.h4 Kf7 53.Be5 Ke6
  ±  (1.34)   Depth: 7/15   00:00:00  27kN
50...axb5 51.Be3 Ke6 52.h4 Kd5 53.h5 Ke4 54.h6
  +-  (1.56)   Depth: 8/17   00:00:00  80kN
50...axb5 51.Be3 Na5 52.h4 Nc6 53.h5 b4 54.cxb4 Nxb4
  +-  (1.59)   Depth: 9/19   00:00:00  173kN
50...a5 51.h4
  +-  (1.58)   Depth: 9/23   00:00:01  444kN
50...a5 51.Bg7 a4 52.Bf8 Kc7 53.h4 Kb6 54.c4 Nd2
  +-  (1.58)   Depth: 9/23   00:00:02  549kN
50...a5 51.Bg7 a4 52.Bf8 Kc7 53.h4 Kb6 54.c4 Nd2
  +-  (1.83)   Depth: 10/24   00:00:02  671kN
50...a5 51.Bg7 a4 52.h4 a3 53.h5 Nd2 54.h6 Nc4 55.h7 a2 56.h8Q a1Q 57.Bd4
  +-  (2.64)   Depth: 10/24   00:00:05  1307kN
50...axb5 51.Be3 Na5 52.h4 Nc6 53.h5 b4 54.cxb4 Nxb4
  +-  (2.63)   Depth: 10/24   00:00:06  1480kN
50...axb5 51.Be3 Na5 52.h4 Nc6 53.Bc5 Ke6 54.h5 Kf5 55.h6
  +-  (1.55)   Depth: 10/24   00:00:06  1565kN
50...axb5 51.Be3 Na5 52.h4 Nc6 53.Bc5 Ke6 54.h5 Kf5 55.h6 Kg6 56.Be3
  +-  (1.63)   Depth: 11/24   00:00:08  2106kN
50...axb5 51.Be3 Na5 52.h4 Nc6 53.h5 Ke6 54.h6 Kf7 55.Bd2 Na5 56.Bf4 Nc4 57.Kg3
Kf6
  +-  (1.70)   Depth: 12/25   00:00:13  3506kN
50...axb5 51.Be3 Na5 52.h4 Nc6 53.h5 Ke6 54.Bd2 Kf5 55.Kg3 Ne5 56.Bf4 Nd3
  +-  (1.75)   Depth: 13/28   00:00:21  6183kN
50...axb5 51.Be3 Ke6 52.h4 Kf5 53.Kf3 Na5 54.h5 Nc6 55.Bd2 Ne7 56.Ke2 Nc6 57.Be3
b4
  +-  (1.55)   Depth: 14/30   00:00:58  17977kN
50...axb5 51.Be3 Ke6 52.h4 Kf5 53.Kf3 Na5 54.h5 Nc6 55.Ke2 b4 56.h6 Kf6 57.c4 b3
58.Kd3
  +-  (1.63)   Depth: 15/32   00:01:38  29552kN

(Szalai, Celeron 1.7 GHz 15.07.2004)

Szalai,M - Chessmaster, Blitz:15'+5"
8/3k4/p7/1P6/3B4/1nP5/6KP/8 b - - 0 1

Analysis by Nimzo 8:

50...a5
  +-  (2.69)   Depth: 1/11   00:00:00
50...axb5
  ±  (1.17)   Depth: 1/11   00:00:00
50...axb5
  ±  (1.17)   Depth: 1/11   00:00:00
50...Nxd4
  ±  (0.74)   Depth: 1/11   00:00:00
50...Nxd4
  ±  (0.74)   Depth: 1/11   00:00:00
50...Nxd4
  +-  (1.94)   Depth: 3/14   00:00:00
50...Nxd4 51.bxa6
  +-  (1.94)   Depth: 3/14   00:00:00
50...axb5
  +-  (1.93)   Depth: 3/14   00:00:00
50...axb5
  ±  (1.27)   Depth: 3/14   00:00:00
50...axb5 51.Bg7 Nc5 52.h4
  +-  (1.48)   Depth: 3/14   00:00:00
50...axb5 51.Bg7 Nc5 52.h4 Ne4 53.h5 Ke8
  +-  (1.41)   Depth: 5/17   00:00:00
50...axb5 51.Bg7 Ke6 52.h4 Kf7 53.Be5 Kg6
  ±  (1.34)   Depth: 6/19   00:00:00
50...axb5 51.Bh8 Nc5 52.h4 Ke6 53.Bf6
  ±  (1.33)   Depth: 7/20   00:00:00
50...axb5 51.Be3 Na5 52.h4 Nc4 53.Bg5 Ke6 54.h5 Kf7
  ±  (1.37)   Depth: 8/22   00:00:00
50...axb5 51.Be3 Na5 52.h4 Nc4 53.Kf3 Ke6 54.h5 Kf6 55.h6 Kg6
  ±  (1.37)   Depth: 9/23   00:00:00  87kN
50...axb5 51.Be3 Na5 52.h4 Nc4 53.Bc5 Ke6 54.h5 Kf7 55.Be7
  ±  (1.33)   Depth: 10/25   00:00:00  87kN
50...axb5 51.Be3 Na5 52.h4 Ke8 53.h5 Kf7 54.Bd4 Nc4 55.Kf3 Kg8
  ±  (1.30)   Depth: 11/26   00:00:01  759kN
50...axb5 51.Be3 Na5 52.h4 Ke8 53.h5 Kf7 54.Bd4 Nc4 55.Kf3 Kg8
  ±  (1.30)   Depth: 12/28   00:00:03  1430kN
50...axb5 51.Be3 Na5 52.h4 Ke6 53.Kf3 Kf7 54.Kg4 Nc4 55.Bf4 Kg6
  ±  (1.27)   Depth: 13/29   00:00:06  5197kN
50...axb5 51.Be3 Na5 52.h4 Ke6 53.Kf3 Nc6 54.Bc5 Kf6 55.Bd6 Na5
  ±  (1.30)   Depth: 14/31   00:00:15  13051kN
50...axb5 51.Be3 Na5 52.h4 Ke6 53.Kg3 Nc6 54.Bc5 Kf5 55.Bd6 Ke6
  ±  (1.22)   Depth: 15/32   00:00:42  40406kN

(Szalai, Celeron 1.7 GHz 15.07.2004)




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