Test position

[Jaime Benito de Valle Rui]

Geschrieben von: / Posted by: Jaime Benito de Valle Ruiz at 24 January 2004 13:55:49:

Can any engine find the move 1.g5 giving a POSITIVE SCORE?

1nrrb2k/pp3ppp/nq2p3/3pP2P/3P1NP1/1BP5/PP2QP2/K5RR w - -

[Uri Blass]

Geschrieben von: / Posted by: Uri Blass at 24 January 2004 14:19:15:
Als Antwort auf: / In reply to: Test position geschrieben von: / posted by: Jaime Benito de Valle Ruiz at 24 January 2004 13:55:49:

Can any engine find the move 1.g5 giving a POSITIVE SCORE?

1nrrb2k/pp3ppp/nq2p3/3pP2P/3P1NP1/1BP5/PP2QP2/K5RR w - -

Movei finds g5 but changes its mind later.
score after few minutes is negative but I guess that movei is too weak in tactics to see the positive score fast .
-1.41/12
-1.31/13
At depth 13 it fails high on Qf3 and gets a score of only 1.01 pawns against white and it makes me suspect that g5 is not the only winning move and Qf3 Nd7 g5 also winning for white.
I will give it to search for more time.
Uri

[Jaime Benito de Valle Rui]

Geschrieben von: / Posted by: Jaime Benito de Valle Ruiz at 24 January 2004 14:24:22:
Als Antwort auf: / In reply to: Re: Test position geschrieben von: / posted by: Uri Blass at 24 January 2004 14:19:15:

Can any engine find the move 1.g5 giving a POSITIVE SCORE?

1nrrb2k/pp3ppp/nq2p3/3pP2P/3P1NP1/1BP5/PP2QP2/K5RR w - -

Movei finds g5 but changes its mind later.
score after few minutes is negative but I guess that movei is too weak in tactics to see the positive score fast .
-1.41/12
-1.31/13
At depth 13 it fails high on Qf3 and gets a score of only 1.01 pawns against white and it makes me suspect that g5 is not the only winning move and Qf3 Nd7 g5 also winning for white.
I will give it to search for more time.
Uri

Now that you mention it... Qf3 could easily transpose to 1.g5... 2.Qf3
By the way, do you know what's wrong with the CCC?
Jaime

[Uri Blass]

Geschrieben von: / Posted by: Uri Blass at 24 January 2004 14:33:23:
Als Antwort auf: / In reply to: Re: Test position geschrieben von: / posted by: Jaime Benito de Valle Ruiz at 24 January 2004 14:24:22:

Can any engine find the move 1.g5 giving a POSITIVE SCORE?

1nrrb2k/pp3ppp/nq2p3/3pP2P/3P1NP1/1BP5/PP2QP2/K5RR w - -

Movei finds g5 but changes its mind later.
score after few minutes is negative but I guess that movei is too weak in tactics to see the positive score fast .
-1.41/12
-1.31/13
At depth 13 it fails high on Qf3 and gets a score of only 1.01 pawns against white and it makes me suspect that g5 is not the only winning move and Qf3 Nd7 g5 also winning for white.
I will give it to search for more time.
Uri

Now that you mention it... Qf3 could easily transpose to 1.g5... 2.Qf3
By the way, do you know what's wrong with the CCC?
Jaime

Nothing is wrong with CCC for me(I did not try to write there after reading your post but only to see posts).
last line of movei
P850 16 mbytes hash tables(movei is not very sensitive to hash)

depth=14 -0.50 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 h5f4 d7f8 g1g7 b6b5 c3c4 b5b6
Nodes: 208663298 NPS: 154539
Time: 00:22:30.23
depth=14 -0.50 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 h5f4 d7f8 g1g7 b6b5 c3c4 b5b6
Nodes: 259614758 NPS: 157309
Time: 00:27:30.34
score is getting closer to be positive.
Maybe depth 15 is enough for a positive score.
Uri

[Jaime Benito de Valle Rui]

Geschrieben von: / Posted by: Jaime Benito de Valle Ruiz at 24 January 2004 14:33:44:
Als Antwort auf: / In reply to: Re: Test position geschrieben von: / posted by: Uri Blass at 24 January 2004 14:19:15:

Can any engine find the move 1.g5 giving a POSITIVE SCORE?

1nrrb2k/pp3ppp/nq2p3/3pP2P/3P1NP1/1BP5/PP2QP2/K5RR w - -

Movei finds g5 but changes its mind later.
score after few minutes is negative but I guess that movei is too weak in tactics to see the positive score fast .
-1.41/12
-1.31/13
At depth 13 it fails high on Qf3 and gets a score of only 1.01 pawns against white and it makes me suspect that g5 is not the only winning move and Qf3 Nd7 g5 also winning for white.
I will give it to search for more time.
Uri

Maybe 1.g5 is a better idea than Qf3, because the game doesn't have to transpose: I got Junior 8 to play against Fritz 8 in a 25 min game, and the game went like this:
1.g5,Nd7 2.g6,fxg6?? 3.hxg6,Nf8 4.Rxh7+ etc...
Jaime

[Uri Blass]

Geschrieben von: / Posted by: Uri Blass at 24 January 2004 14:44:25:
Als Antwort auf: / In reply to: Re: Test position geschrieben von: / posted by: Uri Blass at 24 January 2004 14:33:23:

Can any engine find the move 1.g5 giving a POSITIVE SCORE?

1nrrb2k/pp3ppp/nq2p3/3pP2P/3P1NP1/1BP5/PP2QP2/K5RR w - -

Movei finds g5 but changes its mind later.
score after few minutes is negative but I guess that movei is too weak in tactics to see the positive score fast .
-1.41/12
-1.31/13
At depth 13 it fails high on Qf3 and gets a score of only 1.01 pawns against white and it makes me suspect that g5 is not the only winning move and Qf3 Nd7 g5 also winning for white.
I will give it to search for more time.
Uri

Now that you mention it... Qf3 could easily transpose to 1.g5... 2.Qf3
By the way, do you know what's wrong with the CCC?
Jaime

Nothing is wrong with CCC for me(I did not try to write there after reading your post but only to see posts).
last line of movei
P850 16 mbytes hash tables(movei is not very sensitive to hash)

depth=14 -0.50 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 h5f4 d7f8 g1g7 b6b5 c3c4 b5b6
Nodes: 208663298 NPS: 154539
Time: 00:22:30.23
depth=14 -0.50 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 h5f4 d7f8 g1g7 b6b5 c3c4 b5b6
Nodes: 259614758 NPS: 157309
Time: 00:27:30.34
score is getting closer to be positive.
Maybe depth 15 is enough for a positive score.
Uri

Depth 15 is not good enough for positive socre for Qf3.
depth=15 -0.43 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 g1g7 b6b5 h1g1 e8g6 h5f4 d7f8 g1e1
Nodes: 362289711 NPS: 159097
Time: 00:37:57.15
Uri

[Uri Blass]

Geschrieben von: / Posted by: Uri Blass at 24 January 2004 16:30:38:
Als Antwort auf: / In reply to: Re: Test position geschrieben von: / posted by: Uri Blass at 24 January 2004 14:44:25:

Can any engine find the move 1.g5 giving a POSITIVE SCORE?

1nrrb2k/pp3ppp/nq2p3/3pP2P/3P1NP1/1BP5/PP2QP2/K5RR w - -

Movei finds g5 but changes its mind later.
score after few minutes is negative but I guess that movei is too weak in tactics to see the positive score fast .
-1.41/12
-1.31/13
At depth 13 it fails high on Qf3 and gets a score of only 1.01 pawns against white and it makes me suspect that g5 is not the only winning move and Qf3 Nd7 g5 also winning for white.
I will give it to search for more time.
Uri

Now that you mention it... Qf3 could easily transpose to 1.g5... 2.Qf3
By the way, do you know what's wrong with the CCC?
Jaime

Nothing is wrong with CCC for me(I did not try to write there after reading your post but only to see posts).
last line of movei
P850 16 mbytes hash tables(movei is not very sensitive to hash)

depth=14 -0.50 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 h5f4 d7f8 g1g7 b6b5 c3c4 b5b6
Nodes: 208663298 NPS: 154539
Time: 00:22:30.23
depth=14 -0.50 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 h5f4 d7f8 g1g7 b6b5 c3c4 b5b6
Nodes: 259614758 NPS: 157309
Time: 00:27:30.34
score is getting closer to be positive.
Maybe depth 15 is enough for a positive score.
Uri

Depth 15 is not good enough for positive socre for Qf3.
depth=15 -0.43 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 g1g7 b6b5 h1g1 e8g6 h5f4 d7f8 g1e1
Nodes: 362289711 NPS: 159097
Time: 00:37:57.15
Uri

Finally movei fails high on g5 at depth 16
depth=16 -0.50 e2f3 b8d7 h5h6 g7g6 f4h5 f7f5 g4f5 g6f5 g1g7 e8g6 h5f4 d7f8 f4d5 e6d5 b3d5 f8e6 g7b7
Nodes: 522753619 NPS: 158874
Time: 00:54:50.36
depth=16 -0.49 g4g5
Nodes: 1105457953 NPS: 158643
Time: 01:56:08.18
Uri