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Subject: Re: Strange Fritz 9 Move

Author: Uri Blass

Date: 04:31:46 11/04/05

Go up one level in this thread


On November 03, 2005 at 20:19:06, John Jack wrote:

>Fritz 9 engine needs some work
>
>
>New game - Fruit 2.2.1, Blitz:25' New York
>[D]8/1kb5/p2q4/P4Q2/1NP4p/1K1P2p1/1P6/8 b - - 0 1
>
>Analysis by Fruit 2.2.1:
>New game - Fruit 2.2.1, Blitz:25' New York
>8/1kb5/p2q4/P4Q2/1NP4p/1K1P2p1/1P6/8 b - - 0 1
>
>Analysis by Fruit 2.2.1:
>
>1...Ka7
>  =  (0.20)   Depth: 1/10   00:00:00
>1...Ka7 2.Qg5
>  =  (0.00)   Depth: 2/10   00:00:00
>1...Ka7 2.Nd5 Qd8 3.Nxc7 Qxc7
>  =  (0.15)   Depth: 4/12   00:00:00
>1...Ka7 2.Nd5 Qd8 3.Nxc7 Qxc7
>  =  (0.15)   Depth: 4/12   00:00:00
>1...Ka7 2.c5 Qf4 3.Qe6 h3 4.Qxa6+ Kb8
>  ±  (0.89)   Depth: 5/17   00:00:00
>1...Qe5 2.Qf3+ Kc8 3.Qg4+ Kb7 4.Qxh4 Bxa5 5.Qh7+ Bc7
>  ±  (0.80)   Depth: 5/19   00:00:00
>1...Qh6 2.Qd5+ Kb8 3.Nc6+ Kc8 4.Ne7+ Kb8 5.Qd7 Bd6
>  ²  (0.53)   Depth: 5/19   00:00:00
>1...Qh6 2.Qd5+ Kb8 3.Nc6+ Kc8 4.Ne7+ Kb8 5.Nf5 Qf4 6.d4
>  ²  (0.55)   Depth: 6/22   00:00:00  60kN
>1...Qh6 2.c5 Qd2 3.Qe4+ Ka7 4.Qc6 Qd1+ 5.Ka2 Be5 6.Qd7+ Ka8 7.Nxa6
>  ±  (1.15)   Depth: 7/24   00:00:00  157kN
>1...Qh6 2.c5 Kb8 3.c6 Qf4 4.Nxa6+ Ka7 5.Qb5 Qf7+ 6.Kc3
>  ±  (1.40)   Depth: 8/30   00:00:00  331kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qa8+ Kd7 7.Qxa6 h3 8.Qb5+
>Ke6
>  ±  (1.28)   Depth: 8/30   00:00:00  399kN
>1...h3 2.Qxh3 Bxa5 3.Nd5 Qg6 4.Qd7+ Ka8 5.Qc8+ Ka7 6.Qc5+ Bb6 7.Qe7+ Ka8
>  ±  (1.22)   Depth: 8/30   00:00:00  485kN
>1...h3 2.c5 Qe7 3.c6+ Kb8 4.Nxa6+ Ka7 5.Nxc7 Qxc7 6.Qxh3 Qxc6 7.Qxg3 Qb5+ 8.Kc2
>Qxa5
>  +-  (2.06)   Depth: 9/30   00:00:01  693kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qh6 Bxa5 7.Qxh4+ Ke8 8.d4
>  ±  (1.29)   Depth: 9/30   00:00:01  768kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.d4 Qd6 6.Qe4+ Kf7 7.Qxh4 Qg6 8.Ka4
>  +-  (1.41)   Depth: 10/30   00:00:01  1097kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qh6 Bxa5 7.d4 Qe1 8.Qxh4+
>Kc8 9.Qg4+ Kb7
>  +-  (1.52)   Depth: 11/30   00:00:03  1911kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qh6 Bxa5 7.d4 Qe1 8.Qxh4+
>Kc8 9.Qg4+ Kb7 10.Ka2
>  +-  (1.45)   Depth: 12/33   00:00:06  4358kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qh6 Bxa5 7.Qxh4+ Kc8
>8.Qg4+ Kb7 9.Kc2 Qe1 10.Qg7+ Ka8 11.Qg8+ Ka7
>  +-  (1.54)   Depth: 13/36   00:00:11  7439kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qxa6 Bxa5 5.Qc6+ Kd8 6.Qa8+ Kd7 7.Nc6 Qd6 8.Nxa5
>Qxd3+ 9.Ka2 h3 10.Qb7+ Kd6 11.Qb6+ Ke5 12.Nc6+ Kf5
>  +-  (1.54)   Depth: 14/40   00:00:26  18154kN
>1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qxa6 Bxa5 5.Qc6+ Kd8 6.Qa8+ Kd7 7.Nc6 Qd6 8.Nxa5
>Qxd3+ 9.Ka4 h3 10.Qc6+ Ke7 11.Qc5+ Ke6 12.Nc6
>  +-  (1.58)   Depth: 15/44   00:00:46  31231kN

1...Qe5 does not save the game

Here is the rest of the analysis by fruit(the score at depth 20 drop to 2.51
pawns against black)

1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qh6 Bxa5 7.Qxh4+ Kc8
8.Qg4+ Kb8 9.Kc2 Qe1 10.Qg8+ Kb7 11.Qf7+ Kb8 12.Qf8+ Ka7 13.Qg7+ Ka8 14.Qh8+ Ka7
15.Qh7+ Ka8
  +-  (1.43)   Depth: 16/49   00:01:46  90977kN
1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qxa6 Qc5 5.Qf6 Bxa5 6.Nd5 Qg1 7.Qe7+ Kc6 8.Qe8+
Kb7 9.Qb5+ Bb6 10.Qd7+ Kb8 11.Qe8+ Kb7 12.Qf7+ Kb8 13.Qg8+ Kb7 14.Qh7+ Kc6
15.Qxh4
  +-  (1.64)   Depth: 17/53   00:03:05  159944kN
1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qxa6 Qc5 5.Qf6 Bxa5 6.Nd5 Qg1 7.Qe7+ Kc6 8.Qe8+
Kb7 9.Qb5+ Bb6 10.Qd7+ Kb8 11.Qe8+ Kb7 12.Qf7+ Kb8 13.Qg8+ Kb7 14.Qg7+ Kc6
15.Qf6+ Kb7 16.Qxh4
  +-  (1.64)   Depth: 18/53   00:05:26  283820kN, tb=1
1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qxa6 h3 7.Qa8+ Kd7 8.Qg8
h2 9.Qh7+ Kd8 10.d4 Qd6 11.a6 Bb8 12.Qg8+ Kd7 13.Qg7+ Kd8 14.Qh8+ Kd7 15.Qh3+
Kd8 16.Qh4+ Kd7
  +-  (1.66)   Depth: 19/66   00:11:24  596728kN, tb=3
1...Qe5 2.Qf3+ Kc8 3.Qa8+ Kd7 4.Qc6+ Ke7 5.Nd5+ Kd8 6.Qa8+ Kd7 7.Qxa6 g2 8.Qg6
Bxa5 9.Qxg2 Bd8 10.Qg4+ Qe6 11.Qh5 Kc8 12.Kc2 Bf6 13.b4 Bd4 14.Qxh4 Qe2+ 15.Kc1
Qxd3
  +-  (2.51)   Depth: 20/66   00:34:00  1787840kN, tb=21

(,  04.11.2005)


Uri



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